/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
 * Copyright (C) 2010, 2025 Stefan Lay <stefan.lay@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.OBJ_BLOB;
import static org.eclipse.jgit.lib.FileMode.GITLINK;
import static org.eclipse.jgit.lib.FileMode.TYPE_GITLINK;
import static org.eclipse.jgit.lib.FileMode.TYPE_TREE;

import java.io.IOException;
import java.io.InputStream;
import java.text.MessageFormat;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jgit.api.errors.FilterFailedException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuildIterator;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.NameConflictTreeWalk;
import org.eclipse.jgit.treewalk.TreeWalk.OperationType;
import org.eclipse.jgit.treewalk.WorkingTreeIterator;
import org.eclipse.jgit.treewalk.filter.AndTreeFilter;
import org.eclipse.jgit.treewalk.filter.IndexDiffFilter;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
import org.eclipse.jgit.treewalk.filter.TreeFilter;

/**
 * A class used to execute a {@code Add} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-add.html"
 *      >Git documentation about Add</a>
 */
public class AddCommand extends GitCommand<DirCache> {

	private List<String> filepatterns;

	private WorkingTreeIterator workingTreeIterator;

	// Update only known index entries, don't add new ones. If there's no file
	// for an index entry, remove it: stage deletions.
	private boolean update = false;

	// If TRUE, also stage deletions, otherwise only update and add index
	// entries.
	// If not set explicitly
	private Boolean all;

	// This defaults to true because it's what JGit has been doing
	// traditionally. The C git default would be false.
	private boolean renormalize = true;

	/**
	 * Constructor for AddCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public AddCommand(Repository repo) {
		super(repo);
		filepatterns = new ArrayList<>();
	}

	/**
	 * Add a path to a file/directory whose content should be added.
	 * <p>
	 * A directory name (e.g. <code>dir</code> to add <code>dir/file1</code> and
	 * <code>dir/file2</code>) can also be given to add all files in the
	 * directory, recursively. Fileglobs (e.g. *.c) are not yet supported.
	 * </p>
	 * <p>
	 * If a pattern {@code "."} is added, all changes in the git repository's
	 * working tree will be added.
	 * </p>
	 * <p>
	 * File patterns are required unless {@code isUpdate() == true} or
	 * {@link #setAll(boolean)} is called. If so and no file patterns are given,
	 * all changes will be added (i.e., a file pattern of {@code "."} is
	 * implied).
	 * </p>
	 *
	 * @param filepattern
	 *            repository-relative path of file/directory to add (with
	 *            <code>/</code> as separator)
	 * @return {@code this}
	 */
	public AddCommand addFilepattern(String filepattern) {
		checkCallable();
		filepatterns.add(filepattern);
		return this;
	}

	/**
	 * Allow clients to provide their own implementation of a FileTreeIterator
	 *
	 * @param f
	 *            a {@link org.eclipse.jgit.treewalk.WorkingTreeIterator}
	 *            object.
	 * @return {@code this}
	 */
	public AddCommand setWorkingTreeIterator(WorkingTreeIterator f) {
		workingTreeIterator = f;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Add} command. Each instance of this class should only
	 * be used for one invocation of the command. Don't call this method twice
	 * on an instance.
	 * </p>
	 *
	 * @throws JGitInternalException
	 *             on errors, but also if {@code isUpdate() == true} _and_
	 *             {@link #setAll(boolean)} had been called
	 * @throws NoFilepatternException
	 *             if no file patterns are given if {@code isUpdate() == false}
	 *             and {@link #setAll(boolean)} was not called
	 */
	@Override
	public DirCache call() throws GitAPIException, NoFilepatternException {
		checkCallable();

		if (update && all != null) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().illegalCombinationOfArguments,
					"--update", "--all/--no-all")); //$NON-NLS-1$ //$NON-NLS-2$
		}
		boolean addAll;
		if (filepatterns.isEmpty()) {
			if (update || all != null) {
				addAll = true;
			} else {
				throw new NoFilepatternException(
						JGitText.get().atLeastOnePatternIsRequired);
			}
		} else {
			addAll = filepatterns.contains("."); //$NON-NLS-1$
			if (all == null && !update) {
				all = Boolean.TRUE;
			}
		}
		boolean stageDeletions = update || (all != null && all.booleanValue());

		DirCache dc = null;

		try (ObjectInserter inserter = repo.newObjectInserter();
				NameConflictTreeWalk tw = new NameConflictTreeWalk(repo)) {
			tw.setOperationType(OperationType.CHECKIN_OP);
			dc = repo.lockDirCache();

			DirCacheBuilder builder = dc.builder();
			tw.addTree(new DirCacheBuildIterator(builder));
			if (workingTreeIterator == null)
				workingTreeIterator = new FileTreeIterator(repo);
			workingTreeIterator.setDirCacheIterator(tw, 0);
			tw.addTree(workingTreeIterator);
			TreeFilter pathFilter = null;
			if (!addAll) {
				pathFilter = PathFilterGroup.createFromStrings(filepatterns);
			}
			if (!renormalize) {
				if (pathFilter == null) {
					tw.setFilter(new IndexDiffFilter(0, 1));
				} else {
					tw.setFilter(AndTreeFilter.create(new IndexDiffFilter(0, 1),
							pathFilter));
				}
			} else if (pathFilter != null) {
				tw.setFilter(pathFilter);
			}

			byte[] lastAdded = null;

			while (tw.next()) {
				DirCacheIterator c = tw.getTree(0, DirCacheIterator.class);
				WorkingTreeIterator f = tw.getTree(1, WorkingTreeIterator.class);
				if (c == null && f != null && f.isEntryIgnored()) {
					// file is not in index but is ignored, do nothing
					continue;
				} else if (c == null && update) {
					// Only update of existing entries was requested.
					continue;
				}

				DirCacheEntry entry = c != null ? c.getDirCacheEntry() : null;
				if (entry != null && entry.getStage() > 0
						&& lastAdded != null
						&& lastAdded.length == tw.getPathLength()
						&& tw.isPathPrefix(lastAdded, lastAdded.length) == 0) {
					// In case of an existing merge conflict the
					// DirCacheBuildIterator iterates over all stages of
					// this path, we however want to add only one
					// new DirCacheEntry per path.
					continue;
				}

				if (tw.isSubtree() && !tw.isDirectoryFileConflict()) {
					tw.enterSubtree();
					continue;
				}

				if (f == null) { // working tree file does not exist
					if (entry != null
							&& (!stageDeletions
									|| GITLINK == entry.getFileMode())) {
						builder.add(entry);
					}
					continue;
				}

				if (entry != null && entry.isAssumeValid()) {
					// Index entry is marked assume valid. Even though
					// the user specified the file to be added JGit does
					// not consider the file for addition.
					builder.add(entry);
					continue;
				}

				if ((f.getEntryRawMode() == TYPE_TREE
						&& f.getIndexFileMode(c) != FileMode.GITLINK) ||
						(f.getEntryRawMode() == TYPE_GITLINK
								&& f.getIndexFileMode(c) == FileMode.TREE)) {
					// Index entry exists and is symlink, gitlink or file,
					// otherwise the tree would have been entered above.
					// Replace the index entry by diving into tree of files.
					tw.enterSubtree();
					continue;
				}

				byte[] path = tw.getRawPath();
				if (entry == null || entry.getStage() > 0) {
					entry = new DirCacheEntry(path);
				}
				FileMode mode = f.getIndexFileMode(c);
				entry.setFileMode(mode);

				if (GITLINK != mode) {
					entry.setLength(f.getEntryLength());
					entry.setLastModified(f.getEntryLastModifiedInstant());
					long len = f.getEntryContentLength();
					// We read and filter the content multiple times.
					// f.getEntryContentLength() reads and filters the input and
					// inserter.insert(...) does it again. That's because an
					// ObjectInserter needs to know the length before it starts
					// inserting. TODO: Fix this by using Buffers.
					try (InputStream in = f.openEntryStream()) {
						ObjectId id = inserter.insert(OBJ_BLOB, len, in);
						entry.setObjectId(id);
					}
				} else {
					entry.setLength(0);
					entry.setLastModified(Instant.ofEpochSecond(0));
					entry.setObjectId(f.getEntryObjectId());
				}
				builder.add(entry);
				lastAdded = path;
			}
			inserter.flush();
			builder.commit();
			setCallable(false);
		} catch (IOException e) {
			Throwable cause = e.getCause();
			if (cause != null && cause instanceof FilterFailedException)
				throw (FilterFailedException) cause;
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfAddCommand, e);
		} finally {
			if (dc != null)
				dc.unlock();
		}

		return dc;
	}

	/**
	 * Set whether to only match against already tracked files. If
	 * {@code update == true}, re-sets a previous {@link #setAll(boolean)}.
	 *
	 * @param update
	 *            If set to true, the command only matches {@code filepattern}
	 *            against already tracked files in the index rather than the
	 *            working tree. That means that it will never stage new files,
	 *            but that it will stage modified new contents of tracked files
	 *            and that it will remove files from the index if the
	 *            corresponding files in the working tree have been removed. In
	 *            contrast to the git command line a {@code filepattern} must
	 *            exist also if update is set to true as there is no concept of
	 *            a working directory here.
	 * @return {@code this}
	 */
	public AddCommand setUpdate(boolean update) {
		this.update = update;
		return this;
	}

	/**
	 * Whether to only match against already tracked files
	 *
	 * @return whether to only match against already tracked files
	 */
	public boolean isUpdate() {
		return update;
	}

	/**
	 * Defines whether the command will renormalize by re-applying the "clean"
	 * process to tracked files.
	 * <p>
	 * This does not automatically call {@link #setUpdate(boolean)}.
	 * </p>
	 *
	 * @param renormalize
	 *            whether to renormalize tracked files
	 * @return {@code this}
	 * @since 6.6
	 */
	public AddCommand setRenormalize(boolean renormalize) {
		this.renormalize = renormalize;
		return this;
	}

	/**
	 * Tells whether the command will renormalize by re-applying the "clean"
	 * process to tracked files.
	 * <p>
	 * For legacy reasons, this is {@code true} by default.
	 * </p>
	 * <p>
	 * This setting is independent of {@link #isUpdate()}. In C git,
	 * command-line option --renormalize implies --update.
	 * </p>
	 *
	 * @return whether files will be renormalized
	 * @since 6.6
	 */
	public boolean isRenormalize() {
		return renormalize;
	}

	/**
	 * Defines whether the command will use '--all' mode: update existing index
	 * entries, add new entries, and remove index entries for which there is no
	 * file. (In other words: also stage deletions.)
	 * <p>
	 * The setting is independent of {@link #setUpdate(boolean)}.
	 * </p>
	 *
	 * @param all
	 *            whether to enable '--all' mode
	 * @return {@code this}
	 * @since 7.2
	 */
	public AddCommand setAll(boolean all) {
		this.all = Boolean.valueOf(all);
		return this;
	}

	/**
	 * Tells whether '--all' has been set for this command.
	 *
	 * @return {@code true} if it was set; {@code false} otherwise
	 * @since 7.2
	 */
	public boolean isAll() {
		return all != null && all.booleanValue();
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "8805ea235370f29e661533fd7dff74e7aa3e915d"

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.Note;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Add object notes.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-notes.html"
 *      >Git documentation about Notes</a>
 */
public class AddNoteCommand extends GitCommand<Note> {

	private RevObject id;

	private String message;

	private String notesRef = Constants.R_NOTES_COMMITS;

	/**
	 * Constructor for AddNoteCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected AddNoteCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Note call() throws GitAPIException {
		checkCallable();
		NoteMap map = NoteMap.newEmptyMap();
		RevCommit notesCommit = null;
		try (RevWalk walk = new RevWalk(repo);
				ObjectInserter inserter = repo.newObjectInserter()) {
			Ref ref = repo.findRef(notesRef);
			// if we have a notes ref, use it
			if (ref != null) {
				notesCommit = walk.parseCommit(ref.getObjectId());
				map = NoteMap.read(walk.getObjectReader(), notesCommit);
			}
			map.set(id, message, inserter);
			commitNoteMap(repo, notesRef, walk, map, notesCommit, inserter,
					"Notes added by 'git notes add'"); //$NON-NLS-1$
			return map.getNote(id);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * Sets the object id of object you want a note on. If the object already
	 * has a note, the existing note will be replaced.
	 *
	 * @param id
	 *            a {@link org.eclipse.jgit.revwalk.RevObject}
	 * @return {@code this}
	 */
	public AddNoteCommand setObjectId(RevObject id) {
		checkCallable();
		this.id = id;
		return this;
	}

	/**
	 * Set the notes message
	 *
	 * @param message
	 *            the notes message used when adding a note
	 * @return {@code this}
	 */
	public AddNoteCommand setMessage(String message) {
		checkCallable();
		this.message = message;
		return this;
	}

	static void commitNoteMap(Repository r, String ref, RevWalk walk,
			NoteMap map,
			RevCommit notesCommit,
			ObjectInserter inserter,
			String msg)
			throws IOException {
		// commit the note
		CommitBuilder builder = new CommitBuilder();
		builder.setTreeId(map.writeTree(inserter));
		builder.setAuthor(new PersonIdent(r));
		builder.setCommitter(builder.getAuthor());
		builder.setMessage(msg);
		if (notesCommit != null)
			builder.setParentIds(notesCommit);
		ObjectId commit = inserter.insert(builder);
		inserter.flush();
		RefUpdate refUpdate = r.updateRef(ref);
		if (notesCommit != null)
			refUpdate.setExpectedOldObjectId(notesCommit);
		else
			refUpdate.setExpectedOldObjectId(ObjectId.zeroId());
		refUpdate.setNewObjectId(commit);
		refUpdate.update(walk);
	}

	/**
	 * Set name of a {@code Ref} to read notes from
	 *
	 * @param notesRef
	 *            the ref to read notes from. Note, the default value of
	 *            {@link org.eclipse.jgit.lib.Constants#R_NOTES_COMMITS} will be
	 *            used if nothing is set
	 * @return {@code this}
	 * @see Constants#R_NOTES_COMMITS
	 */
	public AddNoteCommand setNotesRef(String notesRef) {
		checkCallable();
		this.notesRef = notesRef;
		return this;
	}

}
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Content-Disposition: inline; filename="ApplyCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "df0f616256551ba3591c5b2d3e73d3388f0b9dd8"

/*
 * Copyright (C) 2011, 2021 IBM Corporation and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.text.MessageFormat;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.PatchApplyException;
import org.eclipse.jgit.api.errors.PatchFormatException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.patch.Patch;
import org.eclipse.jgit.patch.PatchApplier;
import org.eclipse.jgit.patch.PatchApplier.Result;

/**
 * Apply a patch to files and/or to the index.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-apply.html"
 *      >Git documentation about apply</a>
 * @since 2.0
 */
public class ApplyCommand extends GitCommand<ApplyResult> {

	private InputStream in;

	/**
	 * Constructs the command.
	 *
	 * @param repo
	 *            the repository this command will be used on
	 */
	ApplyCommand(Repository repo) {
		super(repo);
		if (repo == null) {
			throw new NullPointerException(JGitText.get().repositoryIsRequired);
		}
	}

	/**
	 * Set patch
	 *
	 * @param in
	 *            the patch to apply
	 * @return this instance
	 */
	public ApplyCommand setPatch(InputStream in) {
		checkCallable();
		this.in = in;
		return this;
	}

	/**
	 * {@inheritDoc}
	 *
	 * <p>
	 * Executes the {@code ApplyCommand} command with all the options and
	 * parameters collected by the setter methods (e.g.
	 * {@link #setPatch(InputStream)} of this class. Each instance of this class
	 * should only be used for one invocation of the command. Don't call this
	 * method twice on an instance.
	 */
	@Override
	public ApplyResult call() throws GitAPIException {
		checkCallable();
		setCallable(false);
		Patch patch = new Patch();
		try (InputStream inStream = in) {
			patch.parse(inStream);
			if (!patch.getErrors().isEmpty()) {
				throw new PatchFormatException(patch.getErrors());
			}
		} catch (IOException e) {
			throw new PatchApplyException(MessageFormat.format(
					JGitText.get().patchApplyException, e.getMessage()), e);
		}
		ApplyResult r = new ApplyResult();
		try {
			PatchApplier patchApplier = new PatchApplier(repo);
			Result applyResult = patchApplier.applyPatch(patch);
			if (!applyResult.getErrors().isEmpty()) {
				throw new PatchApplyException(
						MessageFormat.format(JGitText.get().patchApplyException,
						applyResult.getErrors()));
			}
			for (String p : applyResult.getPaths()) {
				r.addUpdatedFile(new File(repo.getWorkTree(), p));
			}
		} catch (IOException e) {
			throw new PatchApplyException(MessageFormat.format(JGitText.get().patchApplyException,
					e.getMessage(), e));
		}
		return r;
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "540481b9c8c3180a4fc2c68b24ff399b06759e80"

/*
 * Copyright (C) 2011, 2012 IBM Corporation and others. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * Encapsulates the result of a {@link org.eclipse.jgit.api.ApplyCommand}
 *
 * @since 2.0
 */
public class ApplyResult {

	private List<File> updatedFiles = new ArrayList<>();

	/**
	 * Add updated file
	 *
	 * @param f
	 *            an updated file
	 * @return this instance
	 */
	public ApplyResult addUpdatedFile(File f) {
		updatedFiles.add(f);
		return this;

	}

	/**
	 * Get updated files
	 *
	 * @return updated files
	 */
	public List<File> getUpdatedFiles() {
		return updatedFiles;
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "81b361177450d1c5e911504b57de22f37b7fa99d"

/*
 * Copyright (C) 2012 Google Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.Closeable;
import java.io.IOException;
import java.io.OutputStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.MutableObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectLoader;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * Create an archive of files from a named tree.
 * <p>
 * Examples (<code>git</code> is a {@link org.eclipse.jgit.api.Git} instance):
 * <p>
 * Create a tarball from HEAD:
 *
 * <pre>
 * ArchiveCommand.registerFormat("tar", new TarFormat());
 * try {
 * 	git.archive().setTree(db.resolve(&quot;HEAD&quot;)).setOutputStream(out).call();
 * } finally {
 * 	ArchiveCommand.unregisterFormat("tar");
 * }
 * </pre>
 * <p>
 * Create a ZIP file from master:
 *
 * <pre>
 * ArchiveCommand.registerFormat("zip", new ZipFormat());
 * try {
 *	git.archive().
 *		.setTree(db.resolve(&quot;master&quot;))
 *		.setFormat("zip")
 *		.setOutputStream(out)
 *		.call();
 * } finally {
 *	ArchiveCommand.unregisterFormat("zip");
 * }
 * </pre>
 *
 * @see <a href="http://git-htmldocs.googlecode.com/git/git-archive.html" >Git
 *      documentation about archive</a>
 * @since 3.1
 */
public class ArchiveCommand extends GitCommand<OutputStream> {
	/**
	 * Archival format.
	 *
	 * Usage:
	 *	Repository repo = git.getRepository();
	 *	T out = format.createArchiveOutputStream(System.out);
	 *	try {
	 *		for (...) {
	 *			format.putEntry(out, path, mode, repo.open(objectId));
	 *		}
	 *		out.close();
	 *	}
	 *
	 * @param <T>
	 *            type representing an archive being created.
	 */
	public static interface Format<T extends Closeable> {
		/**
		 * Start a new archive. Entries can be included in the archive using the
		 * putEntry method, and then the archive should be closed using its
		 * close method.
		 *
		 * @param s
		 *            underlying output stream to which to write the archive.
		 * @return new archive object for use in putEntry
		 * @throws IOException
		 *             thrown by the underlying output stream for I/O errors
		 */
		T createArchiveOutputStream(OutputStream s) throws IOException;

		/**
		 * Start a new archive. Entries can be included in the archive using the
		 * putEntry method, and then the archive should be closed using its
		 * close method. In addition options can be applied to the underlying
		 * stream. E.g. compression level.
		 *
		 * @param s
		 *            underlying output stream to which to write the archive.
		 * @param o
		 *            options to apply to the underlying output stream. Keys are
		 *            option names and values are option values.
		 * @return new archive object for use in putEntry
		 * @throws IOException
		 *             thrown by the underlying output stream for I/O errors
		 * @since 4.0
		 */
		T createArchiveOutputStream(OutputStream s, Map<String, Object> o)
				throws IOException;

		/**
		 * Write an entry to an archive.
		 *
		 * @param out
		 *            archive object from createArchiveOutputStream
		 * @param tree
		 *            the tag, commit, or tree object to produce an archive for
		 * @param path
		 *            full filename relative to the root of the archive (with
		 *            trailing '/' for directories)
		 * @param mode
		 *            mode (for example FileMode.REGULAR_FILE or
		 *            FileMode.SYMLINK)
		 * @param loader
		 *            blob object with data for this entry (null for
		 *            directories)
		 * @throws IOException
		 *             thrown by the underlying output stream for I/O errors
		 * @since 4.7
		 */
		void putEntry(T out, ObjectId tree, String path, FileMode mode,
				ObjectLoader loader) throws IOException;

		/**
		 * Filename suffixes representing this format (e.g.,
		 * { ".tar.gz", ".tgz" }).
		 *
		 * The behavior is undefined when suffixes overlap (if
		 * one format claims suffix ".7z", no other format should
		 * take ".tar.7z").
		 *
		 * @return this format's suffixes
		 */
		Iterable<String> suffixes();
	}

	/**
	 * Signals an attempt to use an archival format that ArchiveCommand
	 * doesn't know about (for example due to a typo).
	 */
	public static class UnsupportedFormatException extends GitAPIException {
		private static final long serialVersionUID = 1L;

		private final String format;

		/**
		 * @param format the problematic format name
		 */
		public UnsupportedFormatException(String format) {
			super(MessageFormat.format(JGitText.get().unsupportedArchiveFormat, format));
			this.format = format;
		}

		/**
		 * Get the problematic format name
		 *
		 * @return the problematic format name
		 */
		public String getFormat() {
			return format;
		}
	}

	private static class FormatEntry {
		final Format<?> format;
		/** Number of times this format has been registered. */
		final int refcnt;

		public FormatEntry(Format<?> format, int refcnt) {
			if (format == null)
				throw new NullPointerException();
			this.format = format;
			this.refcnt = refcnt;
		}
	}

	/**
	 * Available archival formats (corresponding to values for
	 * the --format= option)
	 */
	private static final Map<String, FormatEntry> formats =
			new ConcurrentHashMap<>();

	/**
	 * Replaces the entry for a key only if currently mapped to a given
	 * value.
	 *
	 * @param map a map
	 * @param key key with which the specified value is associated
	 * @param oldValue expected value for the key (null if should be absent).
	 * @param newValue value to be associated with the key (null to remove).
	 * @return true if the value was replaced
	 */
	private static <K, V> boolean replace(Map<K, V> map,
			K key, V oldValue, V newValue) {
		if (oldValue == null && newValue == null) // Nothing to do.
			return true;

		if (oldValue == null)
			return map.putIfAbsent(key, newValue) == null;
		else if (newValue == null)
			return map.remove(key, oldValue);
		else
			return map.replace(key, oldValue, newValue);
	}

	/**
	 * Adds support for an additional archival format.  To avoid
	 * unnecessary dependencies, ArchiveCommand does not have support
	 * for any formats built in; use this function to add them.
	 * <p>
	 * OSGi plugins providing formats should call this function at
	 * bundle activation time.
	 * <p>
	 * It is okay to register the same archive format with the same
	 * name multiple times, but don't forget to unregister it that
	 * same number of times, too.
	 * <p>
	 * Registering multiple formats with different names and the
	 * same or overlapping suffixes results in undefined behavior.
	 * TODO: check that suffixes don't overlap.
	 *
	 * @param name name of a format (e.g., "tar" or "zip").
	 * @param fmt archiver for that format
	 * @throws JGitInternalException
	 *              A different archival format with that name was
	 *              already registered.
	 */
	public static void registerFormat(String name, Format<?> fmt) {
		if (fmt == null)
			throw new NullPointerException();

		FormatEntry old, entry;
		do {
			old = formats.get(name);
			if (old == null) {
				entry = new FormatEntry(fmt, 1);
				continue;
			}
			if (!old.format.equals(fmt))
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().archiveFormatAlreadyRegistered,
						name));
			entry = new FormatEntry(old.format, old.refcnt + 1);
		} while (!replace(formats, name, old, entry));
	}

	/**
	 * Marks support for an archival format as no longer needed so its
	 * Format can be garbage collected if no one else is using it either.
	 * <p>
	 * In other words, this decrements the reference count for an
	 * archival format.  If the reference count becomes zero, removes
	 * support for that format.
	 *
	 * @param name name of format (e.g., "tar" or "zip").
	 * @throws JGitInternalException
	 *              No such archival format was registered.
	 */
	public static void unregisterFormat(String name) {
		FormatEntry old, entry;
		do {
			old = formats.get(name);
			if (old == null)
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().archiveFormatAlreadyAbsent,
						name));
			if (old.refcnt == 1) {
				entry = null;
				continue;
			}
			entry = new FormatEntry(old.format, old.refcnt - 1);
		} while (!replace(formats, name, old, entry));
	}

	private static Format<?> formatBySuffix(String filenameSuffix)
			throws UnsupportedFormatException {
		if (filenameSuffix != null)
			for (FormatEntry entry : formats.values()) {
				Format<?> fmt = entry.format;
				for (String sfx : fmt.suffixes())
					if (filenameSuffix.endsWith(sfx))
						return fmt;
			}
		return lookupFormat("tar"); //$NON-NLS-1$
	}

	private static Format<?> lookupFormat(String formatName) throws UnsupportedFormatException {
		FormatEntry entry = formats.get(formatName);
		if (entry == null)
			throw new UnsupportedFormatException(formatName);
		return entry.format;
	}

	private OutputStream out;
	private ObjectId tree;
	private String prefix;
	private String format;
	private Map<String, Object> formatOptions = new HashMap<>();
	private List<String> paths = new ArrayList<>();

	/** Filename suffix, for automatically choosing a format. */
	private String suffix;

	/**
	 * Constructor for ArchiveCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public ArchiveCommand(Repository repo) {
		super(repo);
		setCallable(false);
	}

	private <T extends Closeable> OutputStream writeArchive(Format<T> fmt) {
		try {
			try (TreeWalk walk = new TreeWalk(repo);
					RevWalk rw = new RevWalk(walk.getObjectReader());
					T outa = fmt.createArchiveOutputStream(out,
							formatOptions)) {
				String pfx = prefix == null ? "" : prefix; //$NON-NLS-1$
				MutableObjectId idBuf = new MutableObjectId();
				ObjectReader reader = walk.getObjectReader();

				RevObject o = rw.peel(rw.parseAny(tree));
				walk.reset(getTree(o));
				if (!paths.isEmpty()) {
					walk.setFilter(PathFilterGroup.createFromStrings(paths));
				}

				// Put base directory into archive
				if (pfx.endsWith("/")) { //$NON-NLS-1$
					fmt.putEntry(outa, o, pfx.replaceAll("[/]+$", "/"), //$NON-NLS-1$ //$NON-NLS-2$
							FileMode.TREE, null);
				}

				while (walk.next()) {
					String name = pfx + walk.getPathString();
					FileMode mode = walk.getFileMode(0);

					if (walk.isSubtree())
						walk.enterSubtree();

					if (mode == FileMode.GITLINK) {
						// TODO(jrn): Take a callback to recurse
						// into submodules.
						mode = FileMode.TREE;
					}

					if (mode == FileMode.TREE) {
						fmt.putEntry(outa, o, name + "/", mode, null); //$NON-NLS-1$
						continue;
					}
					walk.getObjectId(idBuf, 0);
					fmt.putEntry(outa, o, name, mode, reader.open(idBuf));
				}
				return out;
			} finally {
				out.close();
			}
		} catch (IOException e) {
			// TODO(jrn): Throw finer-grained errors.
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfArchiveCommand, e);
		}
	}

	@Override
	public OutputStream call() throws GitAPIException {
		checkCallable();

		Format<?> fmt;
		if (format == null)
			fmt = formatBySuffix(suffix);
		else
			fmt = lookupFormat(format);
		return writeArchive(fmt);
	}

	/**
	 * Set the tag, commit, or tree object to produce an archive for
	 *
	 * @param tree
	 *            the tag, commit, or tree object to produce an archive for
	 * @return this
	 */
	public ArchiveCommand setTree(ObjectId tree) {
		if (tree == null)
			throw new IllegalArgumentException();

		this.tree = tree;
		setCallable(true);
		return this;
	}

	/**
	 * Set string prefixed to filenames in archive
	 *
	 * @param prefix
	 *            string prefixed to filenames in archive (e.g., "master/").
	 *            null means to not use any leading prefix.
	 * @return this
	 * @since 3.3
	 */
	public ArchiveCommand setPrefix(String prefix) {
		this.prefix = prefix;
		return this;
	}

	/**
	 * Set the intended filename for the produced archive. Currently the only
	 * effect is to determine the default archive format when none is specified
	 * with {@link #setFormat(String)}.
	 *
	 * @param filename
	 *            intended filename for the archive
	 * @return this
	 */
	public ArchiveCommand setFilename(String filename) {
		int slash = filename.lastIndexOf('/');
		int dot = filename.indexOf('.', slash + 1);

		if (dot == -1)
			this.suffix = ""; //$NON-NLS-1$
		else
			this.suffix = filename.substring(dot);
		return this;
	}

	/**
	 * Set output stream
	 *
	 * @param out
	 *            the stream to which to write the archive
	 * @return this
	 */
	public ArchiveCommand setOutputStream(OutputStream out) {
		this.out = out;
		return this;
	}

	/**
	 * Set archive format
	 *
	 * @param fmt
	 *            archive format (e.g., "tar" or "zip"). null means to choose
	 *            automatically based on the archive filename.
	 * @return this
	 */
	public ArchiveCommand setFormat(String fmt) {
		this.format = fmt;
		return this;
	}

	/**
	 * Set archive format options
	 *
	 * @param options
	 *            archive format options (e.g., level=9 for zip compression).
	 * @return this
	 * @since 4.0
	 */
	public ArchiveCommand setFormatOptions(Map<String, Object> options) {
		this.formatOptions = options;
		return this;
	}

	/**
	 * Set an optional parameter path. without an optional path parameter, all
	 * files and subdirectories of the current working directory are included in
	 * the archive. If one or more paths are specified, only these are included.
	 *
	 * @param paths
	 *            file names (e.g <code>file1.c</code>) or directory names (e.g.
	 *            <code>dir</code> to add <code>dir/file1</code> and
	 *            <code>dir/file2</code>) can also be given to add all files in
	 *            the directory, recursively. Fileglobs (e.g. *.c) are not yet
	 *            supported.
	 * @return this
	 * @since 3.4
	 */
	public ArchiveCommand setPaths(String... paths) {
		this.paths = Arrays.asList(paths);
		return this;
	}

	private RevTree getTree(RevObject o)
			throws IncorrectObjectTypeException {
		final RevTree t;
		if (o instanceof RevCommit) {
			t = ((RevCommit) o).getTree();
		} else if (!(o instanceof RevTree)) {
			throw new IncorrectObjectTypeException(tree.toObjectId(),
					Constants.TYPE_TREE);
		} else {
			t = (RevTree) o;
		}
		return t;
	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 5144
Content-Disposition: inline; filename="BlameCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "513853eaca29b10a76a7f969a8e7811df24f704b"

/*
 * Copyright (C) 2011, 2019 GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.blame.BlameGenerator;
import org.eclipse.jgit.blame.BlameResult;
import org.eclipse.jgit.diff.DiffAlgorithm;
import org.eclipse.jgit.diff.RawTextComparator;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;

/**
 * Blame command for building a {@link org.eclipse.jgit.blame.BlameResult} for a
 * file path.
 */
public class BlameCommand extends GitCommand<BlameResult> {

	private String path;

	private DiffAlgorithm diffAlgorithm;

	private RawTextComparator textComparator;

	private ObjectId startCommit;

	private Collection<ObjectId> reverseEndCommits;

	private Boolean followFileRenames;

	/**
	 * Constructor for BlameCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public BlameCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Set file path.
	 *
	 * @param filePath
	 *            file path (with <code>/</code> as separator)
	 * @return this command
	 */
	public BlameCommand setFilePath(String filePath) {
		this.path = filePath;
		return this;
	}

	/**
	 * Set diff algorithm
	 *
	 * @param diffAlgorithm
	 *            a {@link org.eclipse.jgit.diff.DiffAlgorithm} object.
	 * @return this command
	 */
	public BlameCommand setDiffAlgorithm(DiffAlgorithm diffAlgorithm) {
		this.diffAlgorithm = diffAlgorithm;
		return this;
	}

	/**
	 * Set raw text comparator
	 *
	 * @param textComparator
	 *            a {@link org.eclipse.jgit.diff.RawTextComparator}
	 * @return this command
	 */
	public BlameCommand setTextComparator(RawTextComparator textComparator) {
		this.textComparator = textComparator;
		return this;
	}

	/**
	 * Set start commit id
	 *
	 * @param commit
	 *            id of a commit
	 * @return this command
	 */
	public BlameCommand setStartCommit(AnyObjectId commit) {
		this.startCommit = commit.toObjectId();
		return this;
	}

	/**
	 * Enable (or disable) following file renames.
	 * <p>
	 * If true renames are followed using the standard FollowFilter behavior
	 * used by RevWalk (which matches {@code git log --follow} in the C
	 * implementation). This is not the same as copy/move detection as
	 * implemented by the C implementation's of {@code git blame -M -C}.
	 *
	 * @param follow
	 *            enable following.
	 * @return {@code this}
	 */
	public BlameCommand setFollowFileRenames(boolean follow) {
		followFileRenames = Boolean.valueOf(follow);
		return this;
	}

	/**
	 * Configure the command to compute reverse blame (history of deletes).
	 *
	 * @param start
	 *            oldest commit to traverse from. The result file will be loaded
	 *            from this commit's tree.
	 * @param end
	 *            most recent commit to stop traversal at. Usually an active
	 *            branch tip, tag, or HEAD.
	 * @return {@code this}
	 * @throws java.io.IOException
	 *             the repository cannot be read.
	 */
	public BlameCommand reverse(AnyObjectId start, AnyObjectId end)
			throws IOException {
		return reverse(start, Collections.singleton(end.toObjectId()));
	}

	/**
	 * Configure the generator to compute reverse blame (history of deletes).
	 *
	 * @param start
	 *            oldest commit to traverse from. The result file will be loaded
	 *            from this commit's tree.
	 * @param end
	 *            most recent commits to stop traversal at. Usually an active
	 *            branch tip, tag, or HEAD.
	 * @return {@code this}
	 * @throws java.io.IOException
	 *             the repository cannot be read.
	 */
	public BlameCommand reverse(AnyObjectId start, Collection<ObjectId> end)
			throws IOException {
		startCommit = start.toObjectId();
		reverseEndCommits = new ArrayList<>(end);
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Generate a list of lines with information about when the lines were
	 * introduced into the file path.
	 */
	@Override
	public BlameResult call() throws GitAPIException {
		checkCallable();
		try (BlameGenerator gen = new BlameGenerator(repo, path)) {
			if (diffAlgorithm != null)
				gen.setDiffAlgorithm(diffAlgorithm);
			if (textComparator != null)
				gen.setTextComparator(textComparator);
			if (followFileRenames != null)
				gen.setFollowFileRenames(followFileRenames.booleanValue());

			if (reverseEndCommits != null)
				gen.reverse(startCommit, reverseEndCommits);
			else if (startCommit != null)
				gen.push(null, startCommit);
			else {
				gen.prepareHead();
			}
			return gen.computeBlameResult();
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 23499
Content-Disposition: inline; filename="CheckoutCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "32c242f27147dd343582a9e8e417f00fc2d073c8"

/*
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com>
 * Copyright (C) 2011, 2023 Matthias Sohn <matthias.sohn@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.treewalk.TreeWalk.OperationType.CHECKOUT_OP;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.jgit.api.CheckoutResult.Status;
import org.eclipse.jgit.api.errors.CheckoutConflictException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.RefAlreadyExistsException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.dircache.Checkout;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.dircache.DirCacheCheckout.CheckoutMetadata;
import org.eclipse.jgit.dircache.DirCacheEditor;
import org.eclipse.jgit.dircache.DirCacheEditor.PathEdit;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.AmbiguousObjectException;
import org.eclipse.jgit.errors.UnmergedPathException;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.CoreConfig.EolStreamType;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * Checkout a branch to the working tree.
 * <p>
 * Examples (<code>git</code> is a {@link org.eclipse.jgit.api.Git} instance):
 * <p>
 * Check out an existing branch:
 *
 * <pre>
 * git.checkout().setName(&quot;feature&quot;).call();
 * </pre>
 * <p>
 * Check out paths from the index:
 *
 * <pre>
 * git.checkout().addPath(&quot;file1.txt&quot;).addPath(&quot;file2.txt&quot;).call();
 * </pre>
 * <p>
 * Check out a path from a commit:
 *
 * <pre>
 * git.checkout().setStartPoint(&quot;HEAD&circ;&quot;).addPath(&quot;file1.txt&quot;).call();
 * </pre>
 *
 * <p>
 * Create a new branch and check it out:
 *
 * <pre>
 * git.checkout().setCreateBranch(true).setName(&quot;newbranch&quot;).call();
 * </pre>
 * <p>
 * Create a new tracking branch for a remote branch and check it out:
 *
 * <pre>
 * git.checkout().setCreateBranch(true).setName(&quot;stable&quot;)
 * 		.setUpstreamMode(SetupUpstreamMode.SET_UPSTREAM)
 * 		.setStartPoint(&quot;origin/stable&quot;).call();
 * </pre>
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-checkout.html" >Git
 *      documentation about Checkout</a>
 */
public class CheckoutCommand extends GitCommand<Ref> {

	/**
	 * Stage to check out, see {@link CheckoutCommand#setStage(Stage)}.
	 */
	public enum Stage {
		/**
		 * Base stage (#1)
		 */
		BASE(DirCacheEntry.STAGE_1),

		/**
		 * Ours stage (#2)
		 */
		OURS(DirCacheEntry.STAGE_2),

		/**
		 * Theirs stage (#3)
		 */
		THEIRS(DirCacheEntry.STAGE_3);

		private final int number;

		private Stage(int number) {
			this.number = number;
		}
	}

	private String name;

	private boolean forceRefUpdate = false;

	private boolean forced = false;

	private boolean createBranch = false;

	private boolean orphan = false;

	private CreateBranchCommand.SetupUpstreamMode upstreamMode;

	private String startPoint = null;

	private RevCommit startCommit;

	private Stage checkoutStage = null;

	private CheckoutResult status;

	private List<String> paths;

	private boolean checkoutAllPaths;

	private Set<String> actuallyModifiedPaths;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * Constructor for CheckoutCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected CheckoutCommand(Repository repo) {
		super(repo);
		this.paths = new ArrayList<>();
	}

	@Override
	public Ref call() throws GitAPIException, RefAlreadyExistsException,
			RefNotFoundException, InvalidRefNameException,
			CheckoutConflictException {
		checkCallable();
		try {
			processOptions();
			if (checkoutAllPaths || !paths.isEmpty()) {
				checkoutPaths();
				status = new CheckoutResult(Status.OK, paths);
				setCallable(false);
				return null;
			}

			if (createBranch) {
				try (Git git = new Git(repo)) {
					CreateBranchCommand command = git.branchCreate();
					command.setName(name);
					if (startCommit != null)
						command.setStartPoint(startCommit);
					else
						command.setStartPoint(startPoint);
					if (upstreamMode != null)
						command.setUpstreamMode(upstreamMode);
					command.call();
				}
			}

			Ref headRef = repo.exactRef(Constants.HEAD);
			if (headRef == null) {
				// TODO Git CLI supports checkout from unborn branch, we should
				// also allow this
				throw new UnsupportedOperationException(
						JGitText.get().cannotCheckoutFromUnbornBranch);
			}
			String shortHeadRef = getShortBranchName(headRef);
			String refLogMessage = "checkout: moving from " + shortHeadRef; //$NON-NLS-1$
			ObjectId branch;
			if (orphan) {
				if (startPoint == null && startCommit == null) {
					Result r = repo.updateRef(Constants.HEAD).link(
							getBranchName());
					if (!EnumSet.of(Result.NEW, Result.FORCED).contains(r))
						throw new JGitInternalException(MessageFormat.format(
								JGitText.get().checkoutUnexpectedResult,
								r.name()));
					this.status = CheckoutResult.NOT_TRIED_RESULT;
					return repo.exactRef(Constants.HEAD);
				}
				branch = getStartPointObjectId();
			} else {
				branch = repo.resolve(name);
				if (branch == null)
					throw new RefNotFoundException(MessageFormat.format(
							JGitText.get().refNotResolved, name));
			}

			RevCommit headCommit = null;
			RevCommit newCommit = null;
			try (RevWalk revWalk = new RevWalk(repo)) {
				AnyObjectId headId = headRef.getObjectId();
				headCommit = headId == null ? null
						: revWalk.parseCommit(headId);
				newCommit = revWalk.parseCommit(branch);
			}
			RevTree headTree = headCommit == null ? null : headCommit.getTree();
			DirCacheCheckout dco;
			DirCache dc = repo.lockDirCache();
			try {
				dco = new DirCacheCheckout(repo, headTree, dc,
						newCommit.getTree());
				dco.setFailOnConflict(true);
				dco.setForce(forced);
				if (forced) {
					dco.setFailOnConflict(false);
				}
				dco.setProgressMonitor(monitor);
				try {
					dco.checkout();
				} catch (org.eclipse.jgit.errors.CheckoutConflictException e) {
					status = new CheckoutResult(Status.CONFLICTS,
							dco.getConflicts());
					throw new CheckoutConflictException(dco.getConflicts(), e);
				}
			} finally {
				dc.unlock();
			}
			Ref ref = repo.findRef(name);
			if (ref != null && !ref.getName().startsWith(Constants.R_HEADS))
				ref = null;
			String toName = Repository.shortenRefName(name);
			RefUpdate refUpdate = repo.updateRef(Constants.HEAD, ref == null);
			refUpdate.setForceUpdate(forceRefUpdate);
			refUpdate.setRefLogMessage(refLogMessage + " to " + toName, false); //$NON-NLS-1$
			Result updateResult;
			if (ref != null)
				updateResult = refUpdate.link(ref.getName());
			else if (orphan) {
				updateResult = refUpdate.link(getBranchName());
				ref = repo.exactRef(Constants.HEAD);
			} else {
				refUpdate.setNewObjectId(newCommit);
				updateResult = refUpdate.forceUpdate();
			}

			setCallable(false);

			boolean ok = false;
			switch (updateResult) {
			case NEW:
				ok = true;
				break;
			case NO_CHANGE:
			case FAST_FORWARD:
			case FORCED:
				ok = true;
				break;
			default:
				break;
			}

			if (!ok)
				throw new JGitInternalException(MessageFormat.format(JGitText
						.get().checkoutUnexpectedResult, updateResult.name()));


			if (!dco.getToBeDeleted().isEmpty()) {
				status = new CheckoutResult(Status.NONDELETED,
						dco.getToBeDeleted(),
						new ArrayList<>(dco.getUpdated().keySet()),
						dco.getRemoved());
			} else
				status = new CheckoutResult(new ArrayList<>(dco
						.getUpdated().keySet()), dco.getRemoved());

			return ref;
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		} finally {
			if (status == null)
				status = CheckoutResult.ERROR_RESULT;
		}
	}

	private String getShortBranchName(Ref headRef) {
		if (headRef.isSymbolic()) {
			return Repository.shortenRefName(headRef.getTarget().getName());
		}
		// Detached HEAD. Every non-symbolic ref in the ref database has an
		// object id, so this cannot be null.
		ObjectId id = headRef.getObjectId();
		if (id == null) {
			throw new NullPointerException();
		}
		return id.getName();
	}

	/**
	 * Set progress monitor
	 *
	 * @param monitor
	 *            a progress monitor
	 * @return this instance
	 * @since 4.11
	 */
	public CheckoutCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Add a single slash-separated path to the list of paths to check out. To
	 * check out all paths, use {@link #setAllPaths(boolean)}.
	 * <p>
	 * If this option is set, neither the {@link #setCreateBranch(boolean)} nor
	 * {@link #setName(String)} option is considered. In other words, these
	 * options are exclusive.
	 *
	 * @param path
	 *            path to update in the working tree and index (with
	 *            <code>/</code> as separator)
	 * @return {@code this}
	 */
	public CheckoutCommand addPath(String path) {
		checkCallable();
		this.paths.add(path);
		return this;
	}

	/**
	 * Add multiple slash-separated paths to the list of paths to check out. To
	 * check out all paths, use {@link #setAllPaths(boolean)}.
	 * <p>
	 * If this option is set, neither the {@link #setCreateBranch(boolean)} nor
	 * {@link #setName(String)} option is considered. In other words, these
	 * options are exclusive.
	 *
	 * @param p
	 *            paths to update in the working tree and index (with
	 *            <code>/</code> as separator)
	 * @return {@code this}
	 * @since 4.6
	 */
	public CheckoutCommand addPaths(List<String> p) {
		checkCallable();
		this.paths.addAll(p);
		return this;
	}

	/**
	 * Set whether to checkout all paths.
	 * <p>
	 * This options should be used when you want to do a path checkout on the
	 * entire repository and so calling {@link #addPath(String)} is not possible
	 * since empty paths are not allowed.
	 * <p>
	 * If this option is set, neither the {@link #setCreateBranch(boolean)} nor
	 * {@link #setName(String)} option is considered. In other words, these
	 * options are exclusive.
	 *
	 * @param all
	 *            <code>true</code> to checkout all paths, <code>false</code>
	 *            otherwise
	 * @return {@code this}
	 * @since 2.0
	 */
	public CheckoutCommand setAllPaths(boolean all) {
		checkoutAllPaths = all;
		return this;
	}

	/**
	 * Checkout paths into index and working directory, firing a
	 * {@link org.eclipse.jgit.events.WorkingTreeModifiedEvent} if the working
	 * tree was modified.
	 *
	 * @return this instance
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 * @throws org.eclipse.jgit.api.errors.RefNotFoundException
	 *             if {@code Ref} couldn't be resolved
	 */
	protected CheckoutCommand checkoutPaths() throws IOException,
			RefNotFoundException {
		actuallyModifiedPaths = new HashSet<>();
		Checkout checkout = new Checkout(repo).setRecursiveDeletion(true);
		DirCache dc = repo.lockDirCache();
		try (RevWalk revWalk = new RevWalk(repo);
				TreeWalk treeWalk = new TreeWalk(repo,
						revWalk.getObjectReader())) {
			treeWalk.setRecursive(true);
			if (!checkoutAllPaths)
				treeWalk.setFilter(PathFilterGroup.createFromStrings(paths));
			if (isCheckoutIndex())
				checkoutPathsFromIndex(treeWalk, dc, checkout);
			else {
				RevCommit commit = revWalk.parseCommit(getStartPointObjectId());
				checkoutPathsFromCommit(treeWalk, dc, commit, checkout);
			}
		} finally {
			try {
				dc.unlock();
			} finally {
				WorkingTreeModifiedEvent event = new WorkingTreeModifiedEvent(
						actuallyModifiedPaths, null);
				actuallyModifiedPaths = null;
				if (!event.isEmpty()) {
					repo.fireEvent(event);
				}
			}
		}
		return this;
	}

	private void checkoutPathsFromIndex(TreeWalk treeWalk, DirCache dc,
			Checkout checkout)
			throws IOException {
		DirCacheIterator dci = new DirCacheIterator(dc);
		treeWalk.addTree(dci);

		String previousPath = null;

		final ObjectReader r = treeWalk.getObjectReader();
		DirCacheEditor editor = dc.editor();
		while (treeWalk.next()) {
			String path = treeWalk.getPathString();
			// Only add one edit per path
			if (path.equals(previousPath))
				continue;

			final EolStreamType eolStreamType = treeWalk
					.getEolStreamType(CHECKOUT_OP);
			final String filterCommand = treeWalk
					.getFilterCommand(Constants.ATTR_FILTER_TYPE_SMUDGE);
			editor.add(new PathEdit(path) {
				@Override
				public void apply(DirCacheEntry ent) {
					int stage = ent.getStage();
					if (stage > DirCacheEntry.STAGE_0) {
						if (checkoutStage != null) {
							if (stage == checkoutStage.number) {
								checkoutPath(ent, r, checkout, path,
										new CheckoutMetadata(eolStreamType,
												filterCommand));
								actuallyModifiedPaths.add(path);
							}
						} else {
							UnmergedPathException e = new UnmergedPathException(
									ent);
							throw new JGitInternalException(e.getMessage(), e);
						}
					} else {
						checkoutPath(ent, r, checkout, path,
								new CheckoutMetadata(eolStreamType,
										filterCommand));
						actuallyModifiedPaths.add(path);
					}
				}
			});

			previousPath = path;
		}
		editor.commit();
	}

	private void checkoutPathsFromCommit(TreeWalk treeWalk, DirCache dc,
			RevCommit commit, Checkout checkout) throws IOException {
		treeWalk.addTree(commit.getTree());
		final ObjectReader r = treeWalk.getObjectReader();
		DirCacheEditor editor = dc.editor();
		while (treeWalk.next()) {
			final ObjectId blobId = treeWalk.getObjectId(0);
			final FileMode mode = treeWalk.getFileMode(0);
			final EolStreamType eolStreamType = treeWalk
					.getEolStreamType(CHECKOUT_OP);
			final String filterCommand = treeWalk
					.getFilterCommand(Constants.ATTR_FILTER_TYPE_SMUDGE);
			final String path = treeWalk.getPathString();
			editor.add(new PathEdit(path) {
				@Override
				public void apply(DirCacheEntry ent) {
					if (ent.getStage() != DirCacheEntry.STAGE_0) {
						// A checkout on a conflicting file stages the checked
						// out file and resolves the conflict.
						ent.setStage(DirCacheEntry.STAGE_0);
					}
					ent.setObjectId(blobId);
					ent.setFileMode(mode);
					checkoutPath(ent, r, checkout, path,
							new CheckoutMetadata(eolStreamType, filterCommand));
					actuallyModifiedPaths.add(path);
				}
			});
		}
		editor.commit();
	}

	private void checkoutPath(DirCacheEntry entry, ObjectReader reader,
			Checkout checkout, String path, CheckoutMetadata checkoutMetadata) {
		try {
			checkout.checkout(entry, checkoutMetadata, reader, path);
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().checkoutConflictWithFile,
					entry.getPathString()), e);
		}
	}

	private boolean isCheckoutIndex() {
		return startCommit == null && startPoint == null;
	}

	private ObjectId getStartPointObjectId() throws AmbiguousObjectException,
			RefNotFoundException, IOException {
		if (startCommit != null)
			return startCommit.getId();

		String startPointOrHead = (startPoint != null) ? startPoint
				: Constants.HEAD;
		ObjectId result = repo.resolve(startPointOrHead);
		if (result == null)
			throw new RefNotFoundException(MessageFormat.format(
					JGitText.get().refNotResolved, startPointOrHead));
		return result;
	}

	private void processOptions() throws InvalidRefNameException,
			RefAlreadyExistsException, IOException {
		if (((!checkoutAllPaths && paths.isEmpty()) || orphan)
				&& (name == null || !Repository
						.isValidRefName(Constants.R_HEADS + name)))
			throw new InvalidRefNameException(MessageFormat.format(JGitText
					.get().branchNameInvalid, name == null ? "<null>" : name)); //$NON-NLS-1$

		if (orphan) {
			Ref refToCheck = repo.exactRef(getBranchName());
			if (refToCheck != null)
				throw new RefAlreadyExistsException(MessageFormat.format(
						JGitText.get().refAlreadyExists, name));
		}
	}

	private String getBranchName() {
		if (name.startsWith(Constants.R_REFS))
			return name;

		return Constants.R_HEADS + name;
	}

	/**
	 * Specify the name of the branch or commit to check out, or the new branch
	 * name.
	 * <p>
	 * When only checking out paths and not switching branches, use
	 * {@link #setStartPoint(String)} or {@link #setStartPoint(RevCommit)} to
	 * specify from which branch or commit to check out files.
	 * <p>
	 * When {@link #setCreateBranch(boolean)} is set to <code>true</code>, use
	 * this method to set the name of the new branch to create and
	 * {@link #setStartPoint(String)} or {@link #setStartPoint(RevCommit)} to
	 * specify the start point of the branch.
	 *
	 * @param name
	 *            the name of the branch or commit
	 * @return this instance
	 */
	public CheckoutCommand setName(String name) {
		checkCallable();
		this.name = name;
		return this;
	}

	/**
	 * Specify whether to create a new branch.
	 * <p>
	 * If <code>true</code> is used, the name of the new branch must be set
	 * using {@link #setName(String)}. The commit at which to start the new
	 * branch can be set using {@link #setStartPoint(String)} or
	 * {@link #setStartPoint(RevCommit)}; if not specified, HEAD is used. Also
	 * see {@link #setUpstreamMode} for setting up branch tracking.
	 *
	 * @param createBranch
	 *            if <code>true</code> a branch will be created as part of the
	 *            checkout and set to the specified start point
	 * @return this instance
	 */
	public CheckoutCommand setCreateBranch(boolean createBranch) {
		checkCallable();
		this.createBranch = createBranch;
		return this;
	}

	/**
	 * Specify whether to create a new orphan branch.
	 * <p>
	 * If <code>true</code> is used, the name of the new orphan branch must be
	 * set using {@link #setName(String)}. The commit at which to start the new
	 * orphan branch can be set using {@link #setStartPoint(String)} or
	 * {@link #setStartPoint(RevCommit)}; if not specified, HEAD is used.
	 *
	 * @param orphan
	 *            if <code>true</code> a orphan branch will be created as part
	 *            of the checkout to the specified start point
	 * @return this instance
	 * @since 3.3
	 */
	public CheckoutCommand setOrphan(boolean orphan) {
		checkCallable();
		this.orphan = orphan;
		return this;
	}

	/**
	 * Specify to force the ref update in case of a branch switch.
	 *
	 * In releases prior to 5.2 this method was called setForce() but this name
	 * was misunderstood to implement native git's --force option, which is not
	 * true.
	 *
	 * @param forceRefUpdate
	 *            if <code>true</code> and the branch with the given name
	 *            already exists, the start-point of an existing branch will be
	 *            set to a new start-point; if false, the existing branch will
	 *            not be changed
	 * @return this instance
	 * @since 5.3
	 */
	public CheckoutCommand setForceRefUpdate(boolean forceRefUpdate) {
		checkCallable();
		this.forceRefUpdate = forceRefUpdate;
		return this;
	}

	/**
	 * Allow a checkout even if the workingtree or index differs from HEAD. This
	 * matches native git's '--force' option.
	 *
	 * JGit releases before 5.2 had a method <code>setForce()</code> offering
	 * semantics different from this new <code>setForced()</code>. This old
	 * semantic can now be found in {@link #setForceRefUpdate(boolean)}
	 *
	 * @param forced
	 *            if set to <code>true</code> then allow the checkout even if
	 *            workingtree or index doesn't match HEAD. Overwrite workingtree
	 *            files and index content with the new content in this case.
	 * @return this instance
	 * @since 5.3
	 */
	public CheckoutCommand setForced(boolean forced) {
		checkCallable();
		this.forced = forced;
		return this;
	}

	/**
	 * Set the name of the commit that should be checked out.
	 * <p>
	 * When checking out files and this is not specified or <code>null</code>,
	 * the index is used.
	 * <p>
	 * When creating a new branch, this will be used as the start point. If not
	 * specified or <code>null</code>, the current HEAD is used.
	 *
	 * @param startPoint
	 *            commit name to check out
	 * @return this instance
	 */
	public CheckoutCommand setStartPoint(String startPoint) {
		checkCallable();
		this.startPoint = startPoint;
		this.startCommit = null;
		checkOptions();
		return this;
	}

	/**
	 * Set the commit that should be checked out.
	 * <p>
	 * When creating a new branch, this will be used as the start point. If not
	 * specified or <code>null</code>, the current HEAD is used.
	 * <p>
	 * When checking out files and this is not specified or <code>null</code>,
	 * the index is used.
	 *
	 * @param startCommit
	 *            commit to check out
	 * @return this instance
	 */
	public CheckoutCommand setStartPoint(RevCommit startCommit) {
		checkCallable();
		this.startCommit = startCommit;
		this.startPoint = null;
		checkOptions();
		return this;
	}

	/**
	 * When creating a branch with {@link #setCreateBranch(boolean)}, this can
	 * be used to configure branch tracking.
	 *
	 * @param mode
	 *            corresponds to the --track/--no-track options; may be
	 *            <code>null</code>
	 * @return this instance
	 */
	public CheckoutCommand setUpstreamMode(
			CreateBranchCommand.SetupUpstreamMode mode) {
		checkCallable();
		this.upstreamMode = mode;
		return this;
	}

	/**
	 * When checking out the index, check out the specified stage (ours or
	 * theirs) for unmerged paths.
	 * <p>
	 * This can not be used when checking out a branch, only when checking out
	 * the index.
	 *
	 * @param stage
	 *            the stage to check out
	 * @return this
	 */
	public CheckoutCommand setStage(Stage stage) {
		checkCallable();
		this.checkoutStage = stage;
		checkOptions();
		return this;
	}

	/**
	 * Get the result, never <code>null</code>
	 *
	 * @return the result, never <code>null</code>
	 */
	public CheckoutResult getResult() {
		if (status == null)
			return CheckoutResult.NOT_TRIED_RESULT;
		return status;
	}

	private void checkOptions() {
		if (checkoutStage != null && !isCheckoutIndex())
			throw new IllegalStateException(
					JGitText.get().cannotCheckoutOursSwitchBranch);
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 5150
Content-Disposition: inline; filename="CheckoutResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "c3077730a5afeda66b64a8d58c30cb2744c6610a"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.util.ArrayList;
import java.util.List;

/**
 * Encapsulates the result of a {@link org.eclipse.jgit.api.CheckoutCommand}
 */
public class CheckoutResult {

	/**
	 * The {@link Status#ERROR} result;
	 */
	public static final CheckoutResult ERROR_RESULT = new CheckoutResult(
			Status.ERROR, null);

	/**
	 * The {@link Status#NOT_TRIED} result;
	 */
	public static final CheckoutResult NOT_TRIED_RESULT = new CheckoutResult(
			Status.NOT_TRIED, null);

	/**
	 * The status
	 */
	public enum Status {
		/**
		 * The call() method has not yet been executed
		 */
		NOT_TRIED,
		/**
		 * Checkout completed normally
		 */
		OK,
		/**
		 * Checkout has not completed because of checkout conflicts
		 */
		CONFLICTS,
		/**
		 * Checkout has completed, but some files could not be deleted
		 */
		NONDELETED,
		/**
		 * An Exception occurred during checkout
		 */
		ERROR;
	}

	private final Status myStatus;

	private final List<String> conflictList;

	private final List<String> undeletedList;

	private final List<String> modifiedList;

	private final List<String> removedList;

	/**
	 * Create a new fail result. If status is {@link Status#CONFLICTS},
	 * <code>fileList</code> is a list of conflicting files, if status is
	 * {@link Status#NONDELETED}, <code>fileList</code> is a list of not deleted
	 * files. All other values ignore <code>fileList</code>. To create a result
	 * for {@link Status#OK}, see {@link #CheckoutResult(List, List)}.
	 *
	 * @param status
	 *            the failure status
	 * @param fileList
	 *            the list of files to store, status has to be either
	 *            {@link Status#CONFLICTS} or {@link Status#NONDELETED}.
	 */
	CheckoutResult(Status status, List<String> fileList) {
		this(status, fileList, null, null);
	}

	/**
	 * Create a new fail result. If status is {@link Status#CONFLICTS},
	 * <code>fileList</code> is a list of conflicting files, if status is
	 * {@link Status#NONDELETED}, <code>fileList</code> is a list of not deleted
	 * files. All other values ignore <code>fileList</code>. To create a result
	 * for {@link Status#OK}, see {@link #CheckoutResult(List, List)}.
	 *
	 * @param status
	 *            the failure status
	 * @param fileList
	 *            the list of files to store, status has to be either
	 *            {@link Status#CONFLICTS} or {@link Status#NONDELETED}.
	 * @param modified
	 *            the modified files
	 * @param removed
	 *            the removed files.
	 */
	CheckoutResult(Status status, List<String> fileList, List<String> modified,
			List<String> removed) {
		myStatus = status;
		if (status == Status.CONFLICTS)
			this.conflictList = fileList;
		else
			this.conflictList = new ArrayList<>(0);
		if (status == Status.NONDELETED)
			this.undeletedList = fileList;
		else
			this.undeletedList = new ArrayList<>(0);

		this.modifiedList = modified;
		this.removedList = removed;
	}

	/**
	 * Create a new OK result with modified and removed files.
	 *
	 * @param modified
	 *            the modified files
	 * @param removed
	 *            the removed files.
	 */
	CheckoutResult(List<String> modified, List<String> removed) {
		myStatus = Status.OK;

		this.conflictList = new ArrayList<>(0);
		this.undeletedList = new ArrayList<>(0);

		this.modifiedList = modified;
		this.removedList = removed;
	}

	/**
	 * Get status
	 *
	 * @return the status
	 */
	public Status getStatus() {
		return myStatus;
	}

	/**
	 * Get list of file that created a checkout conflict
	 *
	 * @return the list of files that created a checkout conflict, or an empty
	 *         list if {@link #getStatus()} is not
	 *         {@link org.eclipse.jgit.api.CheckoutResult.Status#CONFLICTS};
	 */
	public List<String> getConflictList() {
		return conflictList;
	}

	/**
	 * Get the list of files that could not be deleted during checkout
	 *
	 * @return the list of files that could not be deleted during checkout, or
	 *         an empty list if {@link #getStatus()} is not
	 *         {@link org.eclipse.jgit.api.CheckoutResult.Status#NONDELETED};
	 */
	public List<String> getUndeletedList() {
		return undeletedList;
	}

	/**
	 * Get the list of files that where modified during checkout
	 *
	 * @return the list of files that where modified during checkout, or an
	 *         empty list if {@link #getStatus()} is not
	 *         {@link org.eclipse.jgit.api.CheckoutResult.Status#OK}
	 */
	public List<String> getModifiedList() {
		return modifiedList;
	}

	/**
	 * Get the list of files that where removed during checkout
	 *
	 * @return the list of files that where removed during checkout, or an empty
	 *         list if {@link #getStatus()} is not
	 *         {@link org.eclipse.jgit.api.CheckoutResult.Status#OK}
	 */
	public List<String> getRemovedList() {
		return removedList;
	}
}
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Content-Length: 13657
Content-Disposition: inline; filename="CherryPickCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "a353d1a1358a5ac8455d9d5864da8b801a4f5807"

/*
 * Copyright (C) 2010, 2021 Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.api.CherryPickCommitMessageProvider.ORIGINAL;
import static org.eclipse.jgit.lib.Constants.OBJECT_ID_ABBREV_STRING_LENGTH;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.MultipleParentsNotAllowedException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.UnmergedPathsException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.CommitConfig;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectIdRef;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Ref.Storage;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.ContentMergeStrategy;
import org.eclipse.jgit.merge.MergeMessageFormatter;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.merge.Merger;
import org.eclipse.jgit.merge.ResolveMerger;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.FileTreeIterator;

/**
 * A class used to execute a {@code cherry-pick} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-cherry-pick.html"
 *      >Git documentation about cherry-pick</a>
 */
public class CherryPickCommand extends GitCommand<CherryPickResult> {
	private String reflogPrefix = "cherry-pick:"; //$NON-NLS-1$

	private List<Ref> commits = new ArrayList<>();

	private String ourCommitName = null;

	private CherryPickCommitMessageProvider messageProvider = ORIGINAL;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private ContentMergeStrategy contentStrategy;

	private Integer mainlineParentNumber;

	private boolean noCommit = false;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * Constructor for CherryPickCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected CherryPickCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Cherry-Pick} command with all the options and
	 * parameters collected by the setter methods (e.g. {@link #include(Ref)} of
	 * this class. Each instance of this class should only be used for one
	 * invocation of the command. Don't call this method twice on an instance.
	 */
	@Override
	public CherryPickResult call() throws GitAPIException, NoMessageException,
			UnmergedPathsException, ConcurrentRefUpdateException,
			WrongRepositoryStateException, NoHeadException {
		RevCommit newHead = null;
		List<Ref> cherryPickedRefs = new ArrayList<>();
		checkCallable();

		try (RevWalk revWalk = new RevWalk(repo)) {

			// get the head commit
			Ref headRef = repo.exactRef(Constants.HEAD);
			if (headRef == null) {
				throw new NoHeadException(
						JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
			}

			newHead = revWalk.parseCommit(headRef.getObjectId());

			// loop through all refs to be cherry-picked
			for (Ref src : commits) {
				// get the commit to be cherry-picked
				// handle annotated tags
				ObjectId srcObjectId = src.getPeeledObjectId();
				if (srcObjectId == null) {
					srcObjectId = src.getObjectId();
				}
				RevCommit srcCommit = revWalk.parseCommit(srcObjectId);

				// get the parent of the commit to cherry-pick
				final RevCommit srcParent = getParentCommit(srcCommit, revWalk);

				String ourName = calculateOurName(headRef);
				String cherryPickName = srcCommit.getId().abbreviate(OBJECT_ID_ABBREV_STRING_LENGTH).name()
						+ " " + srcCommit.getShortMessage(); //$NON-NLS-1$

				Merger merger = strategy.newMerger(repo);
				merger.setProgressMonitor(monitor);
				boolean noProblems;
				Map<String, MergeFailureReason> failingPaths = null;
				List<String> unmergedPaths = null;
				if (merger instanceof ResolveMerger) {
					ResolveMerger resolveMerger = (ResolveMerger) merger;
					resolveMerger.setContentMergeStrategy(contentStrategy);
					resolveMerger.setCommitNames(
							new String[] { "BASE", ourName, cherryPickName }); //$NON-NLS-1$
					resolveMerger
							.setWorkingTreeIterator(new FileTreeIterator(repo));
					if (srcParent != null) {
						resolveMerger.setBase(srcParent.getTree());
					}
					noProblems = merger.merge(newHead, srcCommit);
					failingPaths = resolveMerger.getFailingPaths();
					unmergedPaths = resolveMerger.getUnmergedPaths();
					if (!resolveMerger.getModifiedFiles().isEmpty()) {
						repo.fireEvent(new WorkingTreeModifiedEvent(
								resolveMerger.getModifiedFiles(), null));
					}
				} else {
					noProblems = merger.merge(newHead, srcCommit);
				}
				if (noProblems) {
					if (AnyObjectId.isEqual(newHead.getTree().getId(),
							merger.getResultTreeId())) {
						continue;
					}
					DirCacheCheckout dco = new DirCacheCheckout(repo,
							newHead.getTree(), repo.lockDirCache(),
							merger.getResultTreeId());
					dco.setFailOnConflict(true);
					dco.setProgressMonitor(monitor);
					dco.checkout();
					if (!noCommit) {
						try (Git git = new Git(getRepository())) {
							String commitMessage = messageProvider
									.getCherryPickedCommitMessage(srcCommit);
							newHead = git.commit()
									.setMessage(commitMessage)
									.setReflogComment(reflogPrefix + " " //$NON-NLS-1$
											+ srcCommit.getShortMessage())
									.setAuthor(srcCommit.getAuthorIdent())
									.setNoVerify(true).call();
						}
					}
					cherryPickedRefs.add(src);
				} else {
					if (failingPaths != null && !failingPaths.isEmpty()) {
						return new CherryPickResult(failingPaths);
					}

					// there are merge conflicts

					String message;
					if (unmergedPaths != null) {
						CommitConfig cfg = repo.getConfig()
								.get(CommitConfig.KEY);
						message = srcCommit.getFullMessage();
						char commentChar = cfg.getCommentChar(message);
						message = new MergeMessageFormatter()
								.formatWithConflicts(message, unmergedPaths,
										commentChar);
					} else {
						message = srcCommit.getFullMessage();
					}

					if (!noCommit) {
						repo.writeCherryPickHead(srcCommit.getId());
					}
					repo.writeMergeCommitMsg(message);

					return CherryPickResult.CONFLICT;
				}
			}
		} catch (IOException e) {
			throw new JGitInternalException(
					MessageFormat.format(
							JGitText.get().exceptionCaughtDuringExecutionOfCherryPickCommand,
							e), e);
		}
		return new CherryPickResult(newHead, cherryPickedRefs);
	}

	private RevCommit getParentCommit(RevCommit srcCommit, RevWalk revWalk)
			throws MultipleParentsNotAllowedException, MissingObjectException,
			IOException {
		final RevCommit srcParent;
		if (mainlineParentNumber == null) {
			int nOfParents = srcCommit.getParentCount();
			if (nOfParents == 0) {
				return null;
			} else if (nOfParents != 1) {
				throw new MultipleParentsNotAllowedException(
						MessageFormat.format(
								JGitText.get().canOnlyCherryPickCommitsWithOneParent,
								srcCommit.name(),
								Integer.valueOf(srcCommit.getParentCount())));
			}
			srcParent = srcCommit.getParent(0);
		} else {
			if (mainlineParentNumber.intValue() > srcCommit.getParentCount()) {
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().commitDoesNotHaveGivenParent, srcCommit,
						mainlineParentNumber));
			}
			srcParent = srcCommit
					.getParent(mainlineParentNumber.intValue() - 1);
		}

		revWalk.parseHeaders(srcParent);
		return srcParent;
	}

	/**
	 * Include a reference to a commit
	 *
	 * @param commit
	 *            a reference to a commit which is cherry-picked to the current
	 *            head
	 * @return {@code this}
	 */
	public CherryPickCommand include(Ref commit) {
		checkCallable();
		commits.add(commit);
		return this;
	}

	/**
	 * Include a commit
	 *
	 * @param commit
	 *            the Id of a commit which is cherry-picked to the current head
	 * @return {@code this}
	 */
	public CherryPickCommand include(AnyObjectId commit) {
		return include(commit.getName(), commit);
	}

	/**
	 * Include a commit
	 *
	 * @param name
	 *            a name given to the commit
	 * @param commit
	 *            the Id of a commit which is cherry-picked to the current head
	 * @return {@code this}
	 */
	public CherryPickCommand include(String name, AnyObjectId commit) {
		return include(new ObjectIdRef.Unpeeled(Storage.LOOSE, name,
				commit.copy()));
	}

	/**
	 * Set the name that should be used in the "OURS" place for conflict markers
	 *
	 * @param ourCommitName
	 *            the name that should be used in the "OURS" place for conflict
	 *            markers
	 * @return {@code this}
	 */
	public CherryPickCommand setOurCommitName(String ourCommitName) {
		this.ourCommitName = ourCommitName;
		return this;
	}

	/**
	 * Set a message provider for a target cherry-picked commit<br>
	 * By default original commit message is used (see
	 * {@link CherryPickCommitMessageProvider#ORIGINAL})
	 *
	 * @param messageProvider
	 *            the commit message provider
	 * @return {@code this}
	 * @since 6.9
	 */
	public CherryPickCommand setCherryPickCommitMessageProvider(
			CherryPickCommitMessageProvider messageProvider) {
		this.messageProvider = messageProvider;
		return this;
	}

	/**
	 * Set the prefix to use in the reflog.
	 * <p>
	 * This is primarily needed for implementing rebase in terms of
	 * cherry-picking
	 *
	 * @param prefix
	 *            including ":"
	 * @return {@code this}
	 * @since 3.1
	 */
	public CherryPickCommand setReflogPrefix(String prefix) {
		this.reflogPrefix = prefix;
		return this;
	}

	/**
	 * Set the {@code MergeStrategy}
	 *
	 * @param strategy
	 *            The merge strategy to use during this Cherry-pick.
	 * @return {@code this}
	 * @since 3.4
	 */
	public CherryPickCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * Sets the content merge strategy to use if the
	 * {@link #setStrategy(MergeStrategy) merge strategy} is "resolve" or
	 * "recursive".
	 *
	 * @param strategy
	 *            the {@link ContentMergeStrategy} to be used
	 * @return {@code this}
	 * @since 5.12
	 */
	public CherryPickCommand setContentMergeStrategy(
			ContentMergeStrategy strategy) {
		this.contentStrategy = strategy;
		return this;
	}

	/**
	 * Set the (1-based) parent number to diff against
	 *
	 * @param mainlineParentNumber
	 *            the (1-based) parent number to diff against. This allows
	 *            cherry-picking of merges.
	 * @return {@code this}
	 * @since 3.4
	 */
	public CherryPickCommand setMainlineParentNumber(int mainlineParentNumber) {
		this.mainlineParentNumber = Integer.valueOf(mainlineParentNumber);
		return this;
	}

	/**
	 * Allows cherry-picking changes without committing them.
	 * <p>
	 * NOTE: The behavior of cherry-pick is undefined if you pick multiple
	 * commits or if HEAD does not match the index state before cherry-picking.
	 *
	 * @param noCommit
	 *            true to cherry-pick without committing, false to commit after
	 *            each pick (default)
	 * @return {@code this}
	 * @since 3.5
	 */
	public CherryPickCommand setNoCommit(boolean noCommit) {
		this.noCommit = noCommit;
		return this;
	}

	/**
	 * The progress monitor associated with the cherry-pick operation. By
	 * default, this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 * @since 4.11
	 */
	public CherryPickCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	private String calculateOurName(Ref headRef) {
		if (ourCommitName != null)
			return ourCommitName;

		String targetRefName = headRef.getTarget().getName();
		String headName = Repository.shortenRefName(targetRefName);
		return headName;
	}

	@SuppressWarnings("nls")
	@Override
	public String toString() {
		return "CherryPickCommand [repo=" + repo + ",\ncommits=" + commits
				+ ",\nmainlineParentNumber=" + mainlineParentNumber
				+ ", noCommit=" + noCommit + ", ourCommitName=" + ourCommitName
				+ ", reflogPrefix=" + reflogPrefix + ", strategy=" + strategy
				+ "]";
	}

}
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Content-Disposition: inline; filename="CherryPickCommitMessageProvider.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "50d65b6fa83319cc43b263b0e107e20f32e7120f"

/*
 * Copyright (c) 2023 Dmitrii Naumenko <dmitrii.naumenko@jetbrains.com>
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is aailable at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.util.List;

import org.eclipse.jgit.revwalk.FooterLine;
import org.eclipse.jgit.revwalk.RevCommit;

/**
 * The interface is used to construct a cherry-picked commit message based on
 * the original commit
 *
 * @see #ORIGINAL
 * @see #ORIGINAL_WITH_REFERENCE
 * @since 6.9
 */
public interface CherryPickCommitMessageProvider {

	/**
	 * This provider returns the original commit message
	 */
	static final CherryPickCommitMessageProvider ORIGINAL = RevCommit::getFullMessage;

	/**
	 * This provider returns the original commit message with original commit
	 * hash in SHA-1 form.<br>
	 * Example:
	 *
	 * <pre>
	 * <code>my original commit message
	 *
	 * (cherry picked from commit 75355897dc28e9975afed028c1a6d8c6b97b2a3c)</code>
	 * </pre>
	 *
	 * This is similar to <code>-x</code> flag in git-scm (see <a href=
	 * "https://git-scm.com/docs/git-cherry-pick#_options">https://git-scm.com/docs/git-cherry-pick#_options</a>)
	 */
	static final CherryPickCommitMessageProvider ORIGINAL_WITH_REFERENCE = srcCommit -> {
		String fullMessage = srcCommit.getFullMessage();

		// Don't add extra new line after footer (aka trailer)
		// https://stackoverflow.com/questions/70007405/git-log-exclude-cherry-pick-messages-for-trailers
		// https://lore.kernel.org/git/7vmx136cdc.fsf@alter.siamese.dyndns.org
		String separator = messageEndsWithFooter(srcCommit) ? "\n" : "\n\n"; //$NON-NLS-1$//$NON-NLS-2$
		String revisionString = srcCommit.getName();
		return String.format("%s%s(cherry picked from commit %s)", //$NON-NLS-1$
				fullMessage, separator, revisionString);
	};

	/**
	 * @param srcCommit
	 *            original cherry-picked commit
	 * @return target cherry-picked commit message
	 */
	String getCherryPickedCommitMessage(RevCommit srcCommit);

	private static boolean messageEndsWithFooter(RevCommit srcCommit) {
		byte[] rawBuffer = srcCommit.getRawBuffer();
		List<FooterLine> footers = srcCommit.getFooterLines();
		int maxFooterEnd = footers.stream().mapToInt(FooterLine::getEndOffset)
				.max().orElse(-1);
		return rawBuffer.length == maxFooterEnd;
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "995f8903896c25d9c6286d08863a0f3739a20724"

/*
 * Copyright (C) 2011, Philipp Thun <philipp.thun@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.util.List;
import java.util.Map;

import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.revwalk.RevCommit;

/**
 * Encapsulates the result of a {@link org.eclipse.jgit.api.CherryPickCommand}.
 */
public class CherryPickResult {

	/**
	 * The cherry-pick status
	 */
	public enum CherryPickStatus {
		/** Cherry-pick succeeded */
		OK {
			@Override
			public String toString() {
				return "Ok"; //$NON-NLS-1$
			}
		},
		/** Cherry-pick failed */
		FAILED {
			@Override
			public String toString() {
				return "Failed"; //$NON-NLS-1$
			}
		},
		/** Cherry-pick found conflicts to be resolved */
		CONFLICTING {
			@Override
			public String toString() {
				return "Conflicting"; //$NON-NLS-1$
			}
		}
	}

	private final CherryPickStatus status;

	private final RevCommit newHead;

	private final List<Ref> cherryPickedRefs;

	private final Map<String, MergeFailureReason> failingPaths;

	/**
	 * Constructor for CherryPickResult
	 *
	 * @param newHead
	 *            commit the head points at after this cherry-pick
	 * @param cherryPickedRefs
	 *            list of successfully cherry-picked <code>Ref</code>'s
	 */
	public CherryPickResult(RevCommit newHead, List<Ref> cherryPickedRefs) {
		this.status = CherryPickStatus.OK;
		this.newHead = newHead;
		this.cherryPickedRefs = cherryPickedRefs;
		this.failingPaths = null;
	}

	/**
	 * Constructor for CherryPickResult
	 *
	 * @param failingPaths
	 *            list of paths causing this cherry-pick to fail (see
	 *            {@link org.eclipse.jgit.merge.ResolveMerger#getFailingPaths()}
	 *            for details)
	 */
	public CherryPickResult(Map<String, MergeFailureReason> failingPaths) {
		this.status = CherryPickStatus.FAILED;
		this.newHead = null;
		this.cherryPickedRefs = null;
		this.failingPaths = failingPaths;
	}

	private CherryPickResult(CherryPickStatus status) {
		this.status = status;
		this.newHead = null;
		this.cherryPickedRefs = null;
		this.failingPaths = null;
	}

	/**
	 * A <code>CherryPickResult</code> with status
	 * {@link CherryPickStatus#CONFLICTING}
	 */
	public static final CherryPickResult CONFLICT = new CherryPickResult(
			CherryPickStatus.CONFLICTING);

	/**
	 * Get status
	 *
	 * @return the status this cherry-pick resulted in
	 */
	public CherryPickStatus getStatus() {
		return status;
	}

	/**
	 * Get the new head after this cherry-pick
	 *
	 * @return the commit the head points at after this cherry-pick,
	 *         <code>null</code> if {@link #getStatus} is not
	 *         {@link org.eclipse.jgit.api.CherryPickResult.CherryPickStatus#OK}
	 */
	public RevCommit getNewHead() {
		return newHead;
	}

	/**
	 * Get the cherry-picked {@code Ref}s
	 *
	 * @return the list of successfully cherry-picked <code>Ref</code>'s,
	 *         <code>null</code> if {@link #getStatus} is not
	 *         {@link org.eclipse.jgit.api.CherryPickResult.CherryPickStatus#OK}
	 */
	public List<Ref> getCherryPickedRefs() {
		return cherryPickedRefs;
	}

	/**
	 * Get the list of paths causing this cherry-pick to fail
	 *
	 * @return the list of paths causing this cherry-pick to fail (see
	 *         {@link org.eclipse.jgit.merge.ResolveMerger#getFailingPaths()}
	 *         for details), <code>null</code> if {@link #getStatus} is not
	 *         {@link org.eclipse.jgit.api.CherryPickResult.CherryPickStatus#FAILED}
	 */
	public Map<String, MergeFailureReason> getFailingPaths() {
		return failingPaths;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 7217
Content-Disposition: inline; filename="CleanCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "a4a0c49f45321c64ea639c3d7e04b298653cde46"

/*
 * Copyright (C) 2011, Chris Aniszczyk <zx@redhat.com>
 * Copyright (C) 2011, Abhishek Bhatnagar <abhatnag@redhat.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.DOT_GIT;

import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.NoWorkTreeException;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.FileUtils;
import org.eclipse.jgit.util.Paths;

/**
 * Remove untracked files from the working tree
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-clean.html"
 *      >Git documentation about Clean</a>
 */
public class CleanCommand extends GitCommand<Set<String>> {

	private Set<String> paths = Collections.emptySet();

	private boolean dryRun;

	private boolean directories;

	private boolean ignore = true;

	private boolean force = false;

	/**
	 * Constructor for CleanCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected CleanCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code clean} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command (means: one
	 * call to {@link #call()})
	 */
	@Override
	public Set<String> call() throws NoWorkTreeException, GitAPIException {
		Set<String> files = new TreeSet<>();
		try {
			StatusCommand command = new StatusCommand(repo);
			Status status = command.call();

			Set<String> untrackedFiles = new TreeSet<>(status.getUntracked());
			Set<String> untrackedDirs = new TreeSet<>(
					status.getUntrackedFolders());

			FS fs = getRepository().getFS();
			for (String p : status.getIgnoredNotInIndex()) {
				File f = new File(repo.getWorkTree(), p);
				if (fs.isFile(f) || fs.isSymLink(f)) {
					untrackedFiles.add(p);
				} else if (fs.isDirectory(f)) {
					untrackedDirs.add(p);
				}
			}

			Set<String> filtered = filterFolders(untrackedFiles, untrackedDirs);

			Set<String> notIgnoredFiles = filterIgnorePaths(filtered,
					status.getIgnoredNotInIndex(), true);
			Set<String> notIgnoredDirs = filterIgnorePaths(untrackedDirs,
					status.getIgnoredNotInIndex(), false);

			for (String file : notIgnoredFiles) {
				if (paths.isEmpty() || paths.contains(file)) {
					files = cleanPath(file, files);
				}
			}
			for (String dir : notIgnoredDirs) {
				if (paths.isEmpty() || paths.contains(dir)) {
					files = cleanPath(dir, files);
				}
			}
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} finally {
			if (!dryRun && !files.isEmpty()) {
				repo.fireEvent(new WorkingTreeModifiedEvent(null, files));
			}
		}
		return files;
	}

	/**
	 * When dryRun is false, deletes the specified path from disk. If dryRun is
	 * true, no paths are actually deleted. In both cases, the paths that would
	 * have been deleted are added to inFiles and returned.
	 *
	 * Paths that are directories are recursively deleted when
	 * {@link #directories} is true. Paths that are git repositories are
	 * recursively deleted when {@link #directories} and {@link #force} are both
	 * true.
	 *
	 * @param path
	 *            The path to be cleaned
	 * @param inFiles
	 *            A set of strings representing the files that have been cleaned
	 *            already, the path to be cleaned will be added to this set
	 *            before being returned.
	 *
	 * @return a set of strings with the cleaned path added to it
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private Set<String> cleanPath(String path, Set<String> inFiles)
			throws IOException {
		File curFile = new File(repo.getWorkTree(), path);
		if (curFile.isDirectory()) {
			if (directories) {
				// Is this directory a git repository?
				if (new File(curFile, DOT_GIT).exists()) {
					if (force) {
						if (!dryRun) {
							FileUtils.delete(curFile, FileUtils.RECURSIVE
									| FileUtils.SKIP_MISSING);
						}
						inFiles.add(path + '/');
					}
				} else {
					if (!dryRun) {
						FileUtils.delete(curFile,
								FileUtils.RECURSIVE | FileUtils.SKIP_MISSING);
					}
					inFiles.add(path + '/');
				}
			}
		} else {
			if (!dryRun) {
				FileUtils.delete(curFile, FileUtils.SKIP_MISSING);
			}
			inFiles.add(path);
		}

		return inFiles;
	}

	private Set<String> filterIgnorePaths(Set<String> inputPaths,
			Set<String> ignoredNotInIndex, boolean exact) {
		if (ignore) {
			Set<String> filtered = new TreeSet<>(inputPaths);
			for (String path : inputPaths) {
				for (String ignored : ignoredNotInIndex) {
					if ((exact && path.equals(ignored))
							|| (!exact
									&& Paths.isEqualOrPrefix(ignored, path))) {
						filtered.remove(path);
						break;
					}
				}
			}
			return filtered;
		}
		return inputPaths;
	}

	private Set<String> filterFolders(Set<String> untracked,
			Set<String> untrackedFolders) {
		Set<String> filtered = new TreeSet<>(untracked);
		for (String file : untracked) {
			for (String folder : untrackedFolders) {
				if (Paths.isEqualOrPrefix(folder, file)) {
					filtered.remove(file);
					break;
				}
			}
		}
		return filtered;
	}

	/**
	 * If paths are set, only these paths are affected by the cleaning.
	 *
	 * @param paths
	 *            the paths to set (with <code>/</code> as separator)
	 * @return {@code this}
	 */
	public CleanCommand setPaths(Set<String> paths) {
		this.paths = paths;
		return this;
	}

	/**
	 * If dryRun is set, the paths in question will not actually be deleted.
	 *
	 * @param dryRun
	 *            whether to do a dry run or not
	 * @return {@code this}
	 */
	public CleanCommand setDryRun(boolean dryRun) {
		this.dryRun = dryRun;
		return this;
	}

	/**
	 * If force is set, directories that are git repositories will also be
	 * deleted.
	 *
	 * @param force
	 *            whether or not to delete git repositories
	 * @return {@code this}
	 * @since 4.5
	 */
	public CleanCommand setForce(boolean force) {
		this.force = force;
		return this;
	}

	/**
	 * If dirs is set, in addition to files, also clean directories.
	 *
	 * @param dirs
	 *            whether to clean directories too, or only files.
	 * @return {@code this}
	 */
	public CleanCommand setCleanDirectories(boolean dirs) {
		directories = dirs;
		return this;
	}

	/**
	 * If ignore is set, don't report/clean files/directories that are ignored
	 * by a .gitignore. otherwise do handle them.
	 *
	 * @param ignore
	 *            whether to respect .gitignore or not.
	 * @return {@code this}
	 */
	public CleanCommand setIgnore(boolean ignore) {
		this.ignore = ignore;
		return this;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 26204
Content-Disposition: inline; filename="CloneCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "4a536b9534274431501cb909da455714e680cd79"

/*
 * Copyright (C) 2011, 2022 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.time.Instant;
import java.time.OffsetDateTime;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.internal.util.ShutdownHook;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.transport.FetchResult;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.TagOpt;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.FileUtils;

/**
 * Clone a repository into a new working directory
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-clone.html"
 *      >Git documentation about Clone</a>
 */
public class CloneCommand extends TransportCommand<CloneCommand, Git> {

	private String uri;

	private File directory;

	private File gitDir;

	private boolean bare;

	private boolean relativePaths;

	private FS fs;

	private String remote = Constants.DEFAULT_REMOTE_NAME;

	private String branch = Constants.HEAD;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private boolean cloneAllBranches;

	private boolean mirror;

	private boolean cloneSubmodules;

	private boolean noCheckout;

	private Collection<String> branchesToClone;

	private Callback callback;

	private boolean directoryExistsInitially;

	private boolean gitDirExistsInitially;

	private FETCH_TYPE fetchType;

	private TagOpt tagOption;

	private Integer depth;

	private Instant shallowSince;

	private List<String> shallowExcludes = new ArrayList<>();

	private ShutdownHook.Listener shutdownListener = this::cleanup;

	private enum FETCH_TYPE {
		MULTIPLE_BRANCHES, ALL_BRANCHES, MIRROR
	}

	/**
	 * Callback for status of clone operation.
	 *
	 * @since 4.8
	 */
	public interface Callback {
		/**
		 * Notify initialized submodules.
		 *
		 * @param submodules
		 *            the submodules
		 *
		 */
		void initializedSubmodules(Collection<String> submodules);

		/**
		 * Notify starting to clone a submodule.
		 *
		 * @param path
		 *            the submodule path
		 */
		void cloningSubmodule(String path);

		/**
		 * Notify checkout of commit
		 *
		 * @param commit
		 *            the id of the commit being checked out
		 * @param path
		 *            the submodule path
		 */
		void checkingOut(AnyObjectId commit, String path);
	}

	/**
	 * Create clone command with no repository set
	 */
	public CloneCommand() {
		super(null);
	}

	/**
	 * Get the git directory. This is primarily used for tests.
	 *
	 * @return the git directory
	 */
	@Nullable
	File getDirectory() {
		return directory;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Clone} command.
	 *
	 * The Git instance returned by this command needs to be closed by the
	 * caller to free resources held by the underlying {@link Repository}
	 * instance. It is recommended to call this method as soon as you don't need
	 * a reference to this {@link Git} instance and the underlying
	 * {@link Repository} instance anymore.
	 */
	@Override
	public Git call() throws GitAPIException, InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		URIish u = null;
		try {
			u = new URIish(uri);
			verifyDirectories(u);
		} catch (URISyntaxException e) {
			throw new InvalidRemoteException(
					MessageFormat.format(JGitText.get().invalidURL, uri), e);
		}
		setFetchType();
		@SuppressWarnings("resource") // Closed by caller
		Repository repository = init();
		FetchResult fetchResult = null;
		ShutdownHook.INSTANCE.register(shutdownListener);
		try {
			fetchResult = fetch(repository, u);
		} catch (IOException ioe) {
			if (repository != null) {
				repository.close();
			}
			cleanup();
			throw new JGitInternalException(ioe.getMessage(), ioe);
		} catch (URISyntaxException e) {
			if (repository != null) {
				repository.close();
			}
			cleanup();
			throw new InvalidRemoteException(
					MessageFormat.format(JGitText.get().invalidRemote, remote),
					e);
		} catch (GitAPIException | RuntimeException e) {
			if (repository != null) {
				repository.close();
			}
			cleanup();
			throw e;
		} finally {
			ShutdownHook.INSTANCE.unregister(shutdownListener);
		}
		try {
			checkout(repository, fetchResult);
		} catch (IOException ioe) {
			repository.close();
			throw new JGitInternalException(ioe.getMessage(), ioe);
		} catch (GitAPIException | RuntimeException e) {
			repository.close();
			throw e;
		}
		return new Git(repository, true);
	}

	private void setFetchType() {
		if (mirror) {
			fetchType = FETCH_TYPE.MIRROR;
			setBare(true);
		} else if (cloneAllBranches) {
			fetchType = FETCH_TYPE.ALL_BRANCHES;
		} else if (branchesToClone != null && !branchesToClone.isEmpty()) {
			fetchType = FETCH_TYPE.MULTIPLE_BRANCHES;
		} else {
			// Default: neither mirror nor all nor specific refs given
			fetchType = FETCH_TYPE.ALL_BRANCHES;
		}
	}

	private static boolean isNonEmptyDirectory(File dir) {
		if (dir != null && dir.exists()) {
			File[] files = dir.listFiles();
			return files != null && files.length != 0;
		}
		return false;
	}

	void verifyDirectories(URIish u) {
		if (directory == null && gitDir == null) {
			directory = new File(u.getHumanishName() + (bare ? Constants.DOT_GIT_EXT : "")); //$NON-NLS-1$
		}
		directoryExistsInitially = directory != null && directory.exists();
		gitDirExistsInitially = gitDir != null && gitDir.exists();
		validateDirs(directory, gitDir, bare);
		if (isNonEmptyDirectory(directory)) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().cloneNonEmptyDirectory, directory.getName()));
		}
		if (isNonEmptyDirectory(gitDir)) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().cloneNonEmptyDirectory, gitDir.getName()));
		}
	}

	private Repository init() throws GitAPIException {
		InitCommand command = Git.init();
		command.setBare(bare);
		command.setRelativeDirs(relativePaths);
		if (fs != null) {
			command.setFs(fs);
		}
		if (directory != null) {
			command.setDirectory(directory);
		}
		if (gitDir != null) {
			command.setGitDir(gitDir);
		}
		return command.call().getRepository();
	}

	private FetchResult fetch(Repository clonedRepo, URIish u)
			throws URISyntaxException,
			org.eclipse.jgit.api.errors.TransportException, IOException,
			GitAPIException {
		// create the remote config and save it
		RemoteConfig config = new RemoteConfig(clonedRepo.getConfig(), remote);
		config.addURI(u);

		boolean fetchAll = fetchType == FETCH_TYPE.ALL_BRANCHES
				|| fetchType == FETCH_TYPE.MIRROR;

		config.setFetchRefSpecs(calculateRefSpecs(fetchType, config.getName()));
		config.setMirror(fetchType == FETCH_TYPE.MIRROR);
		if (tagOption != null) {
			config.setTagOpt(tagOption);
		}
		config.update(clonedRepo.getConfig());

		clonedRepo.getConfig().save();

		// run the fetch command
		FetchCommand command = new FetchCommand(clonedRepo);
		command.setRemote(remote);
		command.setProgressMonitor(monitor);
		if (tagOption != null) {
			command.setTagOpt(tagOption);
		} else {
			command.setTagOpt(
					fetchAll ? TagOpt.FETCH_TAGS : TagOpt.AUTO_FOLLOW);
		}
		command.setInitialBranch(branch);
		if (depth != null) {
			command.setDepth(depth.intValue());
		}
		if (shallowSince != null) {
			command.setShallowSince(shallowSince);
		}
		command.setShallowExcludes(shallowExcludes);
		configure(command);

		return command.call();
	}

	private List<RefSpec> calculateRefSpecs(FETCH_TYPE type,
			String remoteName) {
		List<RefSpec> specs = new ArrayList<>();
		if (type == FETCH_TYPE.MIRROR) {
			specs.add(new RefSpec().setForceUpdate(true).setSourceDestination(
					Constants.R_REFS + '*', Constants.R_REFS + '*'));
		} else {
			RefSpec heads = new RefSpec();
			heads = heads.setForceUpdate(true);
			final String dst = (bare ? Constants.R_HEADS
					: Constants.R_REMOTES + remoteName + '/') + '*';
			heads = heads.setSourceDestination(Constants.R_HEADS + '*', dst);
			if (type == FETCH_TYPE.MULTIPLE_BRANCHES) {
				RefSpec tags = new RefSpec().setForceUpdate(true)
						.setSourceDestination(Constants.R_TAGS + '*',
								Constants.R_TAGS + '*');
				for (String selectedRef : branchesToClone) {
					if (heads.matchSource(selectedRef)) {
						specs.add(heads.expandFromSource(selectedRef));
					} else if (tags.matchSource(selectedRef)) {
						specs.add(tags.expandFromSource(selectedRef));
					}
				}
			} else {
				// We'll fetch the tags anyway.
				specs.add(heads);
			}
		}
		return specs;
	}

	private void checkout(Repository clonedRepo, FetchResult result)
			throws MissingObjectException, IncorrectObjectTypeException,
			IOException, GitAPIException {

		Ref head = null;
		if (branch.equals(Constants.HEAD)) {
			Ref foundBranch = findBranchToCheckout(result);
			if (foundBranch != null)
				head = foundBranch;
		}
		if (head == null) {
			head = result.getAdvertisedRef(branch);
			if (head == null)
				head = result.getAdvertisedRef(Constants.R_HEADS + branch);
			if (head == null)
				head = result.getAdvertisedRef(Constants.R_TAGS + branch);
		}

		if (head == null || head.getObjectId() == null)
			return; // TODO throw exception?

		if (head.getName().startsWith(Constants.R_HEADS)) {
			final RefUpdate newHead = clonedRepo.updateRef(Constants.HEAD);
			newHead.disableRefLog();
			newHead.link(head.getName());
			addMergeConfig(clonedRepo, head);
		}

		final RevCommit commit = parseCommit(clonedRepo, head);

		boolean detached = !head.getName().startsWith(Constants.R_HEADS);
		RefUpdate u = clonedRepo.updateRef(Constants.HEAD, detached);
		u.setNewObjectId(commit.getId());
		u.forceUpdate();

		if (!bare && !noCheckout) {
			DirCache dc = clonedRepo.lockDirCache();
			DirCacheCheckout co = new DirCacheCheckout(clonedRepo, dc,
					commit.getTree());
			co.setProgressMonitor(monitor);
			co.checkout();
			if (cloneSubmodules)
				cloneSubmodules(clonedRepo);
		}
	}

	private void cloneSubmodules(Repository clonedRepo) throws IOException,
			GitAPIException {
		SubmoduleInitCommand init = new SubmoduleInitCommand(clonedRepo);
		Collection<String> submodules = init.call();
		if (submodules.isEmpty()) {
			return;
		}
		if (callback != null) {
			callback.initializedSubmodules(submodules);
		}

		SubmoduleUpdateCommand update = new SubmoduleUpdateCommand(clonedRepo);
		configure(update);
		update.setProgressMonitor(monitor);
		update.setCallback(callback);
		if (!update.call().isEmpty()) {
			SubmoduleWalk walk = SubmoduleWalk.forIndex(clonedRepo);
			while (walk.next()) {
				try (Repository subRepo = walk.getRepository()) {
					if (subRepo != null) {
						cloneSubmodules(subRepo);
					}
				}
			}
		}
	}

	private Ref findBranchToCheckout(FetchResult result) {
		final Ref idHEAD = result.getAdvertisedRef(Constants.HEAD);
		ObjectId headId = idHEAD != null ? idHEAD.getObjectId() : null;
		if (headId == null) {
			return null;
		}

		if (idHEAD != null && idHEAD.isSymbolic()) {
			return idHEAD.getTarget();
		}

		Ref master = result.getAdvertisedRef(Constants.R_HEADS
				+ Constants.MASTER);
		ObjectId objectId = master != null ? master.getObjectId() : null;
		if (headId.equals(objectId)) {
			return master;
		}

		Ref foundBranch = null;
		for (Ref r : result.getAdvertisedRefs()) {
			final String n = r.getName();
			if (!n.startsWith(Constants.R_HEADS))
				continue;
			if (headId.equals(r.getObjectId())) {
				foundBranch = r;
				break;
			}
		}
		return foundBranch;
	}

	private void addMergeConfig(Repository clonedRepo, Ref head)
			throws IOException {
		String branchName = Repository.shortenRefName(head.getName());
		clonedRepo.getConfig().setString(ConfigConstants.CONFIG_BRANCH_SECTION,
				branchName, ConfigConstants.CONFIG_KEY_REMOTE, remote);
		clonedRepo.getConfig().setString(ConfigConstants.CONFIG_BRANCH_SECTION,
				branchName, ConfigConstants.CONFIG_KEY_MERGE, head.getName());
		String autosetupRebase = clonedRepo.getConfig().getString(
				ConfigConstants.CONFIG_BRANCH_SECTION, null,
				ConfigConstants.CONFIG_KEY_AUTOSETUPREBASE);
		if (ConfigConstants.CONFIG_KEY_ALWAYS.equals(autosetupRebase)
				|| ConfigConstants.CONFIG_KEY_REMOTE.equals(autosetupRebase))
			clonedRepo.getConfig().setEnum(
					ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
					ConfigConstants.CONFIG_KEY_REBASE, BranchRebaseMode.REBASE);
		clonedRepo.getConfig().save();
	}

	private RevCommit parseCommit(Repository clonedRepo, Ref ref)
			throws MissingObjectException, IncorrectObjectTypeException,
			IOException {
		final RevCommit commit;
		try (RevWalk rw = new RevWalk(clonedRepo)) {
			commit = rw.parseCommit(ref.getObjectId());
		}
		return commit;
	}

	/**
	 * Set the URI to clone from
	 *
	 * @param uri
	 *            the URI to clone from, or {@code null} to unset the URI. The
	 *            URI must be set before {@link #call} is called.
	 * @return this instance
	 */
	public CloneCommand setURI(String uri) {
		this.uri = uri;
		return this;
	}

	/**
	 * The optional directory associated with the clone operation. If the
	 * directory isn't set, a name associated with the source uri will be used.
	 *
	 * @see URIish#getHumanishName()
	 * @param directory
	 *            the directory to clone to, or {@code null} if the directory
	 *            name should be taken from the source uri
	 * @return this instance
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 */
	public CloneCommand setDirectory(File directory) {
		validateDirs(directory, gitDir, bare);
		this.directory = directory;
		return this;
	}

	/**
	 * Set the repository meta directory (.git)
	 *
	 * @param gitDir
	 *            the repository meta directory, or {@code null} to choose one
	 *            automatically at clone time
	 * @return this instance
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 * @since 3.6
	 */
	public CloneCommand setGitDir(File gitDir) {
		validateDirs(directory, gitDir, bare);
		this.gitDir = gitDir;
		return this;
	}

	/**
	 * Set whether the cloned repository shall be bare
	 *
	 * @param bare
	 *            whether the cloned repository is bare or not
	 * @return this instance
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 */
	public CloneCommand setBare(boolean bare) throws IllegalStateException {
		validateDirs(directory, gitDir, bare);
		this.bare = bare;
		return this;
	}

	/**
	 * Set whether the cloned repository shall use relative paths for GIT_DIR
	 * and GIT_WORK_TREE
	 *
	 * @param relativePaths
	 *            if true, use relative paths for GIT_DIR and GIT_WORK_TREE
	 * @return this instance
	 * @since 7.2
	 */
	public CloneCommand setRelativePaths(boolean relativePaths) {
		this.relativePaths = relativePaths;
		return this;
	}

	/**
	 * Set the file system abstraction to be used for repositories created by
	 * this command.
	 *
	 * @param fs
	 *            the abstraction.
	 * @return {@code this} (for chaining calls).
	 * @since 4.10
	 */
	public CloneCommand setFs(FS fs) {
		this.fs = fs;
		return this;
	}

	/**
	 * The remote name used to keep track of the upstream repository for the
	 * clone operation. If no remote name is set, the default value of
	 * <code>Constants.DEFAULT_REMOTE_NAME</code> will be used.
	 *
	 * @see Constants#DEFAULT_REMOTE_NAME
	 * @param remote
	 *            name that keeps track of the upstream repository.
	 *            {@code null} means to use DEFAULT_REMOTE_NAME.
	 * @return this instance
	 */
	public CloneCommand setRemote(String remote) {
		if (remote == null) {
			remote = Constants.DEFAULT_REMOTE_NAME;
		}
		this.remote = remote;
		return this;
	}

	/**
	 * Set the initial branch
	 *
	 * @param branch
	 *            the initial branch to check out when cloning the repository.
	 *            Can be specified as ref name (<code>refs/heads/master</code>),
	 *            branch name (<code>master</code>) or tag name
	 *            (<code>v1.2.3</code>). The default is to use the branch
	 *            pointed to by the cloned repository's HEAD and can be
	 *            requested by passing {@code null} or <code>HEAD</code>.
	 * @return this instance
	 */
	public CloneCommand setBranch(String branch) {
		if (branch == null) {
			branch = Constants.HEAD;
		}
		this.branch = branch;
		return this;
	}

	/**
	 * The progress monitor associated with the clone operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 */
	public CloneCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Set whether all branches have to be fetched.
	 * <p>
	 * If {@code false}, use {@link #setBranchesToClone(Collection)} to define
	 * what will be cloned. If neither are set, all branches will be cloned.
	 * </p>
	 *
	 * @param cloneAllBranches
	 *            {@code true} when all branches have to be fetched (indicates
	 *            wildcard in created fetch refspec), {@code false} otherwise.
	 * @return {@code this}
	 */
	public CloneCommand setCloneAllBranches(boolean cloneAllBranches) {
		this.cloneAllBranches = cloneAllBranches;
		return this;
	}

	/**
	 * Set up a mirror of the source repository. This implies that a bare
	 * repository will be created. Compared to {@link #setBare},
	 * {@code #setMirror} not only maps local branches of the source to local
	 * branches of the target, it maps all refs (including remote-tracking
	 * branches, notes etc.) and sets up a refspec configuration such that all
	 * these refs are overwritten by a git remote update in the target
	 * repository.
	 *
	 * @param mirror
	 *            whether to mirror all refs from the source repository
	 *
	 * @return {@code this}
	 * @since 5.6
	 */
	public CloneCommand setMirror(boolean mirror) {
		this.mirror = mirror;
		return this;
	}

	/**
	 * Set whether to clone submodules
	 *
	 * @param cloneSubmodules
	 *            true to initialize and update submodules. Ignored when
	 *            {@link #setBare(boolean)} is set to true.
	 * @return {@code this}
	 */
	public CloneCommand setCloneSubmodules(boolean cloneSubmodules) {
		this.cloneSubmodules = cloneSubmodules;
		return this;
	}

	/**
	 * Set the branches or tags to clone.
	 * <p>
	 * This is ignored if {@link #setCloneAllBranches(boolean)
	 * setCloneAllBranches(true)} or {@link #setMirror(boolean) setMirror(true)}
	 * is used. If {@code branchesToClone} is {@code null} or empty, it's also
	 * ignored.
	 * </p>
	 *
	 * @param branchesToClone
	 *            collection of branches to clone. Must be specified as full ref
	 *            names (e.g. {@code refs/heads/master} or
	 *            {@code refs/tags/v1.0.0}).
	 * @return {@code this}
	 */
	public CloneCommand setBranchesToClone(Collection<String> branchesToClone) {
		this.branchesToClone = branchesToClone;
		return this;
	}

	/**
	 * Set the tag option used for the remote configuration explicitly.
	 *
	 * @param tagOption
	 *            tag option to be used for the remote config
	 * @return {@code this}
	 * @since 5.8
	 */
	public CloneCommand setTagOption(TagOpt tagOption) {
		this.tagOption = tagOption;
		return this;
	}

	/**
	 * Set the --no-tags option. Tags are not cloned now and the remote
	 * configuration is initialized with the --no-tags option as well.
	 *
	 * @return {@code this}
	 * @since 5.8
	 */
	public CloneCommand setNoTags() {
		return setTagOption(TagOpt.NO_TAGS);
	}

	/**
	 * Set whether to skip checking out a branch
	 *
	 * @param noCheckout
	 *            if set to <code>true</code> no branch will be checked out
	 *            after the clone. This enhances performance of the clone
	 *            command when there is no need for a checked out branch.
	 * @return {@code this}
	 */
	public CloneCommand setNoCheckout(boolean noCheckout) {
		this.noCheckout = noCheckout;
		return this;
	}

	/**
	 * Register a progress callback.
	 *
	 * @param callback
	 *            the callback
	 * @return {@code this}
	 * @since 4.8
	 */
	public CloneCommand setCallback(Callback callback) {
		this.callback = callback;
		return this;
	}

	/**
	 * Creates a shallow clone with a history truncated to the specified number
	 * of commits.
	 *
	 * @param depth
	 *            the depth
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public CloneCommand setDepth(int depth) {
		if (depth < 1) {
			throw new IllegalArgumentException(JGitText.get().depthMustBeAt1);
		}
		this.depth = Integer.valueOf(depth);
		return this;
	}

	/**
	 * Creates a shallow clone with a history after the specified time.
	 *
	 * @param shallowSince
	 *            the timestammp; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public CloneCommand setShallowSince(@NonNull OffsetDateTime shallowSince) {
		this.shallowSince = shallowSince.toInstant();
		return this;
	}

	/**
	 * Creates a shallow clone with a history after the specified time.
	 *
	 * @param shallowSince
	 *            the timestammp; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public CloneCommand setShallowSince(@NonNull Instant shallowSince) {
		this.shallowSince = shallowSince;
		return this;
	}

	/**
	 * Creates a shallow clone with a history, excluding commits reachable from
	 * a specified remote branch or tag.
	 *
	 * @param shallowExclude
	 *            the ref or commit; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public CloneCommand addShallowExclude(@NonNull String shallowExclude) {
		shallowExcludes.add(shallowExclude);
		return this;
	}

	/**
	 * Creates a shallow clone with a history, excluding commits reachable from
	 * a specified remote branch or tag.
	 *
	 * @param shallowExclude
	 *            the commit; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public CloneCommand addShallowExclude(@NonNull ObjectId shallowExclude) {
		shallowExcludes.add(shallowExclude.name());
		return this;
	}

	private static void validateDirs(File directory, File gitDir, boolean bare)
			throws IllegalStateException {
		if (directory != null) {
			if (directory.exists() && !directory.isDirectory()) {
				throw new IllegalStateException(MessageFormat.format(
						JGitText.get().initFailedDirIsNoDirectory, directory));
			}
			if (gitDir != null && gitDir.exists() && !gitDir.isDirectory()) {
				throw new IllegalStateException(MessageFormat.format(
						JGitText.get().initFailedGitDirIsNoDirectory,
						gitDir));
			}
			if (bare) {
				if (gitDir != null && !gitDir.equals(directory))
					throw new IllegalStateException(MessageFormat.format(
							JGitText.get().initFailedBareRepoDifferentDirs,
							gitDir, directory));
			} else {
				if (gitDir != null && gitDir.equals(directory))
					throw new IllegalStateException(MessageFormat.format(
							JGitText.get().initFailedNonBareRepoSameDirs,
							gitDir, directory));
			}
		}
	}

	private void cleanup() {
		try {
			if (directory != null) {
				if (!directoryExistsInitially) {
					FileUtils.delete(directory, FileUtils.RECURSIVE
							| FileUtils.SKIP_MISSING | FileUtils.IGNORE_ERRORS);
				} else {
					deleteChildren(directory);
				}
			}
			if (gitDir != null) {
				if (!gitDirExistsInitially) {
					FileUtils.delete(gitDir, FileUtils.RECURSIVE
							| FileUtils.SKIP_MISSING | FileUtils.IGNORE_ERRORS);
				} else {
					deleteChildren(gitDir);
				}
			}
		} catch (IOException e) {
			// Ignore; this is a best-effort cleanup in error cases, and
			// IOException should not be raised anyway
		}
	}

	private void deleteChildren(File file) throws IOException {
		File[] files = file.listFiles();
		if (files == null) {
			return;
		}
		for (File child : files) {
			FileUtils.delete(child, FileUtils.RECURSIVE | FileUtils.SKIP_MISSING
					| FileUtils.IGNORE_ERRORS);
		}
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 35813
Content-Disposition: inline; filename="CommitCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "a7d409c3f58be75a24f83b0cf19a5ddba84be500"

/*
 * Copyright (C) 2010-2012, Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;

import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.api.errors.AbortedByHookException;
import org.eclipse.jgit.api.errors.CanceledException;
import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.EmptyCommitException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.ServiceUnavailableException;
import org.eclipse.jgit.api.errors.UnmergedPathsException;
import org.eclipse.jgit.api.errors.UnsupportedSigningFormatException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuildIterator;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.errors.UnmergedPathException;
import org.eclipse.jgit.hooks.CommitMsgHook;
import org.eclipse.jgit.hooks.Hooks;
import org.eclipse.jgit.hooks.PostCommitHook;
import org.eclipse.jgit.hooks.PreCommitHook;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.CommitConfig;
import org.eclipse.jgit.lib.CommitConfig.CleanupMode;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.GpgConfig;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.lib.Signer;
import org.eclipse.jgit.lib.Signers;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.CredentialsProvider;
import org.eclipse.jgit.treewalk.CanonicalTreeParser;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.TreeWalk.OperationType;
import org.eclipse.jgit.util.ChangeIdUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A class used to execute a {@code Commit} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-commit.html"
 *      >Git documentation about Commit</a>
 */
public class CommitCommand extends GitCommand<RevCommit> {
	private static final Logger log = LoggerFactory
			.getLogger(CommitCommand.class);

	private PersonIdent author;

	private PersonIdent committer;

	private String message;

	private boolean all;

	private List<String> only = new ArrayList<>();

	private boolean[] onlyProcessed;

	private boolean amend;

	private boolean insertChangeId;

	/**
	 * parents this commit should have. The current HEAD will be in this list
	 * and also all commits mentioned in .git/MERGE_HEAD
	 */
	private List<ObjectId> parents = new ArrayList<>();

	private String reflogComment;

	private boolean useDefaultReflogMessage = true;

	/**
	 * Setting this option bypasses the pre-commit and commit-msg hooks.
	 */
	private boolean noVerify;

	private HashMap<String, PrintStream> hookOutRedirect = new HashMap<>(3);

	private HashMap<String, PrintStream> hookErrRedirect = new HashMap<>(3);

	private Boolean allowEmpty;

	private Boolean signCommit;

	private String signingKey;

	private Signer signer;

	private GpgConfig gpgConfig;

	private CredentialsProvider credentialsProvider;

	private @NonNull CleanupMode cleanupMode = CleanupMode.VERBATIM;

	private boolean cleanDefaultIsStrip = true;

	private Character commentChar;

	/**
	 * Constructor for CommitCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected CommitCommand(Repository repo) {
		super(repo);
		this.credentialsProvider = CredentialsProvider.getDefault();
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code commit} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command (means: one
	 * call to {@link #call()})
	 *
	 * @throws ServiceUnavailableException
	 *             if signing service is not available e.g. since it isn't
	 *             installed
	 */
	@Override
	public RevCommit call() throws GitAPIException, AbortedByHookException,
			ConcurrentRefUpdateException, NoHeadException, NoMessageException,
			ServiceUnavailableException, UnmergedPathsException,
			WrongRepositoryStateException {
		checkCallable();
		Collections.sort(only);

		try (RevWalk rw = new RevWalk(repo)) {
			RepositoryState state = repo.getRepositoryState();
			if (!state.canCommit())
				throw new WrongRepositoryStateException(MessageFormat.format(
						JGitText.get().cannotCommitOnARepoWithState,
						state.name()));

			if (!noVerify) {
				Hooks.preCommit(repo, hookOutRedirect.get(PreCommitHook.NAME),
						hookErrRedirect.get(PreCommitHook.NAME))
						.call();
			}

			processOptions(state, rw);

			if (all && !repo.isBare()) {
				try (Git git = new Git(repo)) {
					git.add().addFilepattern(".") //$NON-NLS-1$
							.setUpdate(true).call();
				} catch (NoFilepatternException e) {
					// should really not happen
					throw new JGitInternalException(e.getMessage(), e);
				}
			}

			Ref head = repo.exactRef(Constants.HEAD);
			if (head == null)
				throw new NoHeadException(
						JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported);

			// determine the current HEAD and the commit it is referring to
			ObjectId headId = repo.resolve(Constants.HEAD + "^{commit}"); //$NON-NLS-1$
			if (headId == null && amend)
				throw new WrongRepositoryStateException(
						JGitText.get().commitAmendOnInitialNotPossible);

			if (headId != null) {
				if (amend) {
					RevCommit previousCommit = rw.parseCommit(headId);
					for (RevCommit p : previousCommit.getParents())
						parents.add(p.getId());
					if (author == null)
						author = previousCommit.getAuthorIdent();
				} else {
					parents.add(0, headId);
				}
			}
			if (!noVerify) {
				message = Hooks
						.commitMsg(repo,
								hookOutRedirect.get(CommitMsgHook.NAME),
								hookErrRedirect.get(CommitMsgHook.NAME))
						.setCommitMessage(message).call();
			}

			CommitConfig config = null;
			if (CleanupMode.DEFAULT.equals(cleanupMode)) {
				config = repo.getConfig().get(CommitConfig.KEY);
				cleanupMode = config.resolve(cleanupMode, cleanDefaultIsStrip);
			}
			char comments = (char) 0;
			if (CleanupMode.STRIP.equals(cleanupMode)
					|| CleanupMode.SCISSORS.equals(cleanupMode)) {
				if (commentChar == null) {
					if (config == null) {
						config = repo.getConfig().get(CommitConfig.KEY);
					}
					if (config.isAutoCommentChar()) {
						// We're supposed to pick a character that isn't used,
						// but then cleaning up won't remove any lines. So don't
						// bother.
						comments = (char) 0;
						cleanupMode = CleanupMode.WHITESPACE;
					} else {
						comments = config.getCommentChar();
					}
				} else {
					comments = commentChar.charValue();
				}
			}
			message = CommitConfig.cleanText(message, cleanupMode, comments);

			RevCommit revCommit;
			DirCache index = repo.lockDirCache();
			try (ObjectInserter odi = repo.newObjectInserter()) {
				if (!only.isEmpty())
					index = createTemporaryIndex(headId, index, rw);

				// Write the index as tree to the object database. This may
				// fail for example when the index contains unmerged paths
				// (unresolved conflicts)
				ObjectId indexTreeId = index.writeTree(odi);

				if (insertChangeId)
					insertChangeId(indexTreeId);

				checkIfEmpty(rw, headId, indexTreeId);

				// Create a Commit object, populate it and write it
				CommitBuilder commit = new CommitBuilder();
				commit.setCommitter(committer);
				commit.setAuthor(author);
				commit.setMessage(message);
				commit.setParentIds(parents);
				commit.setTreeId(indexTreeId);

				if (signCommit.booleanValue()) {
					sign(commit);
				}

				ObjectId commitId = odi.insert(commit);
				odi.flush();
				revCommit = rw.parseCommit(commitId);

				updateRef(state, headId, revCommit, commitId);
			} finally {
				index.unlock();
			}
			try {
				Hooks.postCommit(repo, hookOutRedirect.get(PostCommitHook.NAME),
						hookErrRedirect.get(PostCommitHook.NAME)).call();
			} catch (Exception e) {
				log.error(MessageFormat.format(
						JGitText.get().postCommitHookFailed, e.getMessage()),
						e);
			}
			return revCommit;
		} catch (UnmergedPathException e) {
			throw new UnmergedPathsException(e);
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfCommitCommand, e);
		}
	}

	private void checkIfEmpty(RevWalk rw, ObjectId headId, ObjectId indexTreeId)
			throws EmptyCommitException, MissingObjectException,
			IncorrectObjectTypeException, IOException {
		if (headId != null && !allowEmpty.booleanValue()) {
			RevCommit headCommit = rw.parseCommit(headId);
			headCommit.getTree();
			if (indexTreeId.equals(headCommit.getTree())) {
				throw new EmptyCommitException(JGitText.get().emptyCommit);
			}
		}
	}

	private void sign(CommitBuilder commit)
			throws CanceledException, IOException,
			UnsupportedSigningFormatException {
		if (signer == null) {
			signer = Signers.get(gpgConfig.getKeyFormat());
			if (signer == null) {
				throw new UnsupportedSigningFormatException(MessageFormat
						.format(JGitText.get().signatureTypeUnknown,
								gpgConfig.getKeyFormat().toConfigValue()));
			}
		}
		if (signingKey == null) {
			signingKey = gpgConfig.getSigningKey();
		}
		signer.signObject(repo, gpgConfig, commit, committer, signingKey,
				credentialsProvider);
	}

	private void updateRef(RepositoryState state, ObjectId headId,
			RevCommit revCommit, ObjectId commitId)
			throws ConcurrentRefUpdateException, IOException {
		RefUpdate ru = repo.updateRef(Constants.HEAD);
		ru.setNewObjectId(commitId);
		if (!useDefaultReflogMessage) {
			ru.setRefLogMessage(reflogComment, false);
		} else {
			String prefix = amend ? "commit (amend): " //$NON-NLS-1$
					: parents.isEmpty() ? "commit (initial): " //$NON-NLS-1$
							: "commit: "; //$NON-NLS-1$
			ru.setRefLogMessage(prefix + revCommit.getShortMessage(),
					false);
		}
		if (headId != null) {
			ru.setExpectedOldObjectId(headId);
		} else {
			ru.setExpectedOldObjectId(ObjectId.zeroId());
		}
		Result rc = ru.forceUpdate();
		switch (rc) {
		case NEW:
		case FORCED:
		case FAST_FORWARD: {
			setCallable(false);
			if (state == RepositoryState.MERGING_RESOLVED
					|| isMergeDuringRebase(state)) {
				// Commit was successful. Now delete the files
				// used for merge commits
				repo.writeMergeCommitMsg(null);
				repo.writeMergeHeads(null);
			} else if (state == RepositoryState.CHERRY_PICKING_RESOLVED) {
				repo.writeMergeCommitMsg(null);
				repo.writeCherryPickHead(null);
			} else if (state == RepositoryState.REVERTING_RESOLVED) {
				repo.writeMergeCommitMsg(null);
				repo.writeRevertHead(null);
			}
			break;
		}
		case REJECTED:
		case LOCK_FAILURE:
			throw new ConcurrentRefUpdateException(
					JGitText.get().couldNotLockHEAD, ru.getRef(), rc);
		default:
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().updatingRefFailed, Constants.HEAD,
					commitId.toString(), rc));
		}
	}

	private void insertChangeId(ObjectId treeId) {
		ObjectId firstParentId = null;
		if (!parents.isEmpty())
			firstParentId = parents.get(0);
		ObjectId changeId = ChangeIdUtil.computeChangeId(treeId, firstParentId,
				author, committer, message);
		message = ChangeIdUtil.insertId(message, changeId);
		if (changeId != null)
			message = message.replaceAll("\nChange-Id: I" //$NON-NLS-1$
					+ ObjectId.zeroId().getName() + "\n", "\nChange-Id: I" //$NON-NLS-1$ //$NON-NLS-2$
					+ changeId.getName() + "\n"); //$NON-NLS-1$
	}

	private DirCache createTemporaryIndex(ObjectId headId, DirCache index,
			RevWalk rw)
			throws IOException {
		ObjectInserter inserter = null;

		// get DirCacheBuilder for existing index
		DirCacheBuilder existingBuilder = index.builder();

		// get DirCacheBuilder for newly created in-core index to build a
		// temporary index for this commit
		DirCache inCoreIndex = DirCache.newInCore();
		DirCacheBuilder tempBuilder = inCoreIndex.builder();

		onlyProcessed = new boolean[only.size()];
		boolean emptyCommit = true;

		try (TreeWalk treeWalk = new TreeWalk(repo)) {
			treeWalk.setOperationType(OperationType.CHECKIN_OP);
			int dcIdx = treeWalk
					.addTree(new DirCacheBuildIterator(existingBuilder));
			FileTreeIterator fti = new FileTreeIterator(repo);
			fti.setDirCacheIterator(treeWalk, 0);
			int fIdx = treeWalk.addTree(fti);
			int hIdx = -1;
			if (headId != null)
				hIdx = treeWalk.addTree(rw.parseTree(headId));
			treeWalk.setRecursive(true);

			String lastAddedFile = null;
			while (treeWalk.next()) {
				String path = treeWalk.getPathString();
				// check if current entry's path matches a specified path
				int pos = lookupOnly(path);

				CanonicalTreeParser hTree = null;
				if (hIdx != -1)
					hTree = treeWalk.getTree(hIdx, CanonicalTreeParser.class);

				DirCacheIterator dcTree = treeWalk.getTree(dcIdx,
						DirCacheIterator.class);

				if (pos >= 0) {
					// include entry in commit

					FileTreeIterator fTree = treeWalk.getTree(fIdx,
							FileTreeIterator.class);

					// check if entry refers to a tracked file
					boolean tracked = dcTree != null || hTree != null;
					if (!tracked)
						continue;

					// for an unmerged path, DirCacheBuildIterator will yield 3
					// entries, we only want to add one
					if (path.equals(lastAddedFile))
						continue;

					lastAddedFile = path;

					if (fTree != null) {
						// create a new DirCacheEntry with data retrieved from
						// disk
						final DirCacheEntry dcEntry = new DirCacheEntry(path);
						long entryLength = fTree.getEntryLength();
						dcEntry.setLength(entryLength);
						dcEntry.setLastModified(fTree.getEntryLastModifiedInstant());
						dcEntry.setFileMode(fTree.getIndexFileMode(dcTree));

						boolean objectExists = (dcTree != null
								&& fTree.idEqual(dcTree))
								|| (hTree != null && fTree.idEqual(hTree));
						if (objectExists) {
							dcEntry.setObjectId(fTree.getEntryObjectId());
						} else {
							if (FileMode.GITLINK.equals(dcEntry.getFileMode()))
								dcEntry.setObjectId(fTree.getEntryObjectId());
							else {
								// insert object
								if (inserter == null)
									inserter = repo.newObjectInserter();
								long contentLength = fTree
										.getEntryContentLength();
								try (InputStream inputStream = fTree
										.openEntryStream()) {
									dcEntry.setObjectId(inserter.insert(
											Constants.OBJ_BLOB, contentLength,
											inputStream));
								}
							}
						}

						// add to existing index
						existingBuilder.add(dcEntry);
						// add to temporary in-core index
						tempBuilder.add(dcEntry);

						if (emptyCommit
								&& (hTree == null || !hTree.idEqual(fTree)
										|| hTree.getEntryRawMode() != fTree
												.getEntryRawMode()))
							// this is a change
							emptyCommit = false;
					} else {
						// if no file exists on disk, neither add it to
						// index nor to temporary in-core index

						if (emptyCommit && hTree != null)
							// this is a change
							emptyCommit = false;
					}

					// keep track of processed path
					onlyProcessed[pos] = true;
				} else {
					// add entries from HEAD for all other paths
					if (hTree != null) {
						// create a new DirCacheEntry with data retrieved from
						// HEAD
						final DirCacheEntry dcEntry = new DirCacheEntry(path);
						dcEntry.setObjectId(hTree.getEntryObjectId());
						dcEntry.setFileMode(hTree.getEntryFileMode());

						// add to temporary in-core index
						tempBuilder.add(dcEntry);
					}

					// preserve existing entry in index
					if (dcTree != null)
						existingBuilder.add(dcTree.getDirCacheEntry());
				}
			}
		}

		// there must be no unprocessed paths left at this point; otherwise an
		// untracked or unknown path has been specified
		for (int i = 0; i < onlyProcessed.length; i++)
			if (!onlyProcessed[i])
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().entryNotFoundByPath, only.get(i)));

		// there must be at least one change
		if (emptyCommit && !allowEmpty.booleanValue())
			// Would like to throw a EmptyCommitException. But this would break the API
			// TODO(ch): Change this in the next release
			throw new JGitInternalException(JGitText.get().emptyCommit);

		// update index
		existingBuilder.commit();
		// finish temporary in-core index used for this commit
		tempBuilder.finish();
		return inCoreIndex;
	}

	/**
	 * Look an entry's path up in the list of paths specified by the --only/ -o
	 * option
	 *
	 * In case the complete (file) path (e.g. "d1/d2/f1") cannot be found in
	 * <code>only</code>, lookup is also tried with (parent) directory paths
	 * (e.g. "d1/d2" and "d1").
	 *
	 * @param pathString
	 *            entry's path
	 * @return the item's index in <code>only</code>; -1 if no item matches
	 */
	private int lookupOnly(String pathString) {
		String p = pathString;
		while (true) {
			int position = Collections.binarySearch(only, p);
			if (position >= 0)
				return position;
			int l = p.lastIndexOf('/');
			if (l < 1)
				break;
			p = p.substring(0, l);
		}
		return -1;
	}

	/**
	 * Sets default values for not explicitly specified options. Then validates
	 * that all required data has been provided.
	 *
	 * @param state
	 *            the state of the repository we are working on
	 * @param rw
	 *            the RevWalk to use
	 *
	 * @throws NoMessageException
	 *             if the commit message has not been specified
	 * @throws UnsupportedSigningFormatException
	 *             if the configured gpg.format is not supported
	 */
	private void processOptions(RepositoryState state, RevWalk rw)
			throws NoMessageException, UnsupportedSigningFormatException {
		if (committer == null)
			committer = new PersonIdent(repo);
		if (author == null && !amend)
			author = committer;
		if (allowEmpty == null)
			// JGit allows empty commits by default. Only when pathes are
			// specified the commit should not be empty. This behaviour differs
			// from native git but can only be adapted in the next release.
			// TODO(ch) align the defaults with native git
			allowEmpty = only.isEmpty() ? Boolean.TRUE : Boolean.FALSE;

		// when doing a merge commit parse MERGE_HEAD and MERGE_MSG files
		if (state == RepositoryState.MERGING_RESOLVED
				|| isMergeDuringRebase(state)) {
			try {
				parents = repo.readMergeHeads();
				if (parents != null)
					for (int i = 0; i < parents.size(); i++) {
						RevObject ro = rw.parseAny(parents.get(i));
						if (ro instanceof RevTag)
							parents.set(i, rw.peel(ro));
					}
			} catch (IOException e) {
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().exceptionOccurredDuringReadingOfGIT_DIR,
						Constants.MERGE_HEAD, e), e);
			}
			if (message == null) {
				try {
					message = repo.readMergeCommitMsg();
				} catch (IOException e) {
					throw new JGitInternalException(MessageFormat.format(
							JGitText.get().exceptionOccurredDuringReadingOfGIT_DIR,
							Constants.MERGE_MSG, e), e);
				}
			}
		} else if (state == RepositoryState.SAFE && message == null) {
			try {
				message = repo.readSquashCommitMsg();
				if (message != null)
					repo.writeSquashCommitMsg(null /* delete */);
			} catch (IOException e) {
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().exceptionOccurredDuringReadingOfGIT_DIR,
						Constants.MERGE_MSG, e), e);
			}

		}
		if (message == null)
			// as long as we don't support -C option we have to have
			// an explicit message
			throw new NoMessageException(JGitText.get().commitMessageNotSpecified);

		if (gpgConfig == null) {
			gpgConfig = new GpgConfig(repo.getConfig());
		}
		if (signCommit == null) {
			signCommit = gpgConfig.isSignCommits() ? Boolean.TRUE
					: Boolean.FALSE;
		}
	}

	private boolean isMergeDuringRebase(RepositoryState state) {
		if (state != RepositoryState.REBASING_INTERACTIVE
				&& state != RepositoryState.REBASING_MERGE)
			return false;
		try {
			return repo.readMergeHeads() != null;
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().exceptionOccurredDuringReadingOfGIT_DIR,
					Constants.MERGE_HEAD, e), e);
		}
	}

	/**
	 * Set the commit message
	 *
	 * @param message
	 *            the commit message used for the {@code commit}
	 * @return {@code this}
	 */
	public CommitCommand setMessage(String message) {
		checkCallable();
		this.message = message;
		return this;
	}

	/**
	 * Sets the {@link CleanupMode} to apply to the commit message. If not
	 * called, {@link CommitCommand} applies {@link CleanupMode#VERBATIM}.
	 *
	 * @param mode
	 *            {@link CleanupMode} to set
	 * @return {@code this}
	 * @since 6.1
	 */
	public CommitCommand setCleanupMode(@NonNull CleanupMode mode) {
		checkCallable();
		this.cleanupMode = mode;
		return this;
	}

	/**
	 * Sets the default clean mode if {@link #setCleanupMode(CleanupMode)
	 * setCleanupMode(CleanupMode.DEFAULT)} is set and git config
	 * {@code commit.cleanup = default} or is not set.
	 *
	 * @param strip
	 *            if {@code true}, default to {@link CleanupMode#STRIP};
	 *            otherwise default to {@link CleanupMode#WHITESPACE}
	 * @return {@code this}
	 * @since 6.1
	 */
	public CommitCommand setDefaultClean(boolean strip) {
		checkCallable();
		this.cleanDefaultIsStrip = strip;
		return this;
	}

	/**
	 * Sets the comment character to apply when cleaning a commit message. If
	 * {@code null} (the default) and the {@link #setCleanupMode(CleanupMode)
	 * clean-up mode} is {@link CleanupMode#STRIP} or
	 * {@link CleanupMode#SCISSORS}, the value of git config
	 * {@code core.commentChar} will be used.
	 *
	 * @param commentChar
	 *            the comment character, or {@code null} to use the value from
	 *            the git config
	 * @return {@code this}
	 * @since 6.1
	 */
	public CommitCommand setCommentCharacter(Character commentChar) {
		checkCallable();
		this.commentChar = commentChar;
		return this;
	}

	/**
	 * Set whether to allow to create an empty commit
	 *
	 * @param allowEmpty
	 *            whether it should be allowed to create a commit which has the
	 *            same tree as it's sole predecessor (a commit which doesn't
	 *            change anything). By default when creating standard commits
	 *            (without specifying paths) JGit allows to create such commits.
	 *            When this flag is set to false an attempt to create an "empty"
	 *            standard commit will lead to an EmptyCommitException.
	 *            <p>
	 *            By default when creating a commit containing only specified
	 *            paths an attempt to create an empty commit leads to a
	 *            {@link org.eclipse.jgit.api.errors.JGitInternalException}. By
	 *            setting this flag to <code>true</code> this exception will not
	 *            be thrown.
	 * @return {@code this}
	 * @since 4.2
	 */
	public CommitCommand setAllowEmpty(boolean allowEmpty) {
		this.allowEmpty = Boolean.valueOf(allowEmpty);
		return this;
	}

	/**
	 * Get the commit message
	 *
	 * @return the commit message used for the <code>commit</code>
	 */
	public String getMessage() {
		return message;
	}

	/**
	 * Sets the committer for this {@code commit}. If no committer is explicitly
	 * specified because this method is never called or called with {@code null}
	 * value then the committer will be deduced from config info in repository,
	 * with current time.
	 *
	 * @param committer
	 *            the committer used for the {@code commit}
	 * @return {@code this}
	 */
	public CommitCommand setCommitter(PersonIdent committer) {
		checkCallable();
		this.committer = committer;
		return this;
	}

	/**
	 * Sets the committer for this {@code commit}. If no committer is explicitly
	 * specified because this method is never called then the committer will be
	 * deduced from config info in repository, with current time.
	 *
	 * @param name
	 *            the name of the committer used for the {@code commit}
	 * @param email
	 *            the email of the committer used for the {@code commit}
	 * @return {@code this}
	 */
	public CommitCommand setCommitter(String name, String email) {
		checkCallable();
		return setCommitter(new PersonIdent(name, email));
	}

	/**
	 * Get the committer
	 *
	 * @return the committer used for the {@code commit}. If no committer was
	 *         specified {@code null} is returned and the default
	 *         {@link org.eclipse.jgit.lib.PersonIdent} of this repo is used
	 *         during execution of the command
	 */
	public PersonIdent getCommitter() {
		return committer;
	}

	/**
	 * Sets the author for this {@code commit}. If no author is explicitly
	 * specified because this method is never called or called with {@code null}
	 * value then the author will be set to the committer or to the original
	 * author when amending.
	 *
	 * @param author
	 *            the author used for the {@code commit}
	 * @return {@code this}
	 */
	public CommitCommand setAuthor(PersonIdent author) {
		checkCallable();
		this.author = author;
		return this;
	}

	/**
	 * Sets the author for this {@code commit}. If no author is explicitly
	 * specified because this method is never called then the author will be set
	 * to the committer or to the original author when amending.
	 *
	 * @param name
	 *            the name of the author used for the {@code commit}
	 * @param email
	 *            the email of the author used for the {@code commit}
	 * @return {@code this}
	 */
	public CommitCommand setAuthor(String name, String email) {
		checkCallable();
		return setAuthor(new PersonIdent(name, email));
	}

	/**
	 * Get the author
	 *
	 * @return the author used for the {@code commit}. If no author was
	 *         specified {@code null} is returned and the default
	 *         {@link org.eclipse.jgit.lib.PersonIdent} of this repo is used
	 *         during execution of the command
	 */
	public PersonIdent getAuthor() {
		return author;
	}

	/**
	 * If set to true the Commit command automatically stages files that have
	 * been modified and deleted, but new files not known by the repository are
	 * not affected. This corresponds to the parameter -a on the command line.
	 *
	 * @param all
	 *            whether to auto-stage all files that have been modified and
	 *            deleted
	 * @return {@code this}
	 * @throws JGitInternalException
	 *             in case of an illegal combination of arguments/ options
	 */
	public CommitCommand setAll(boolean all) {
		checkCallable();
		if (all && !only.isEmpty())
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().illegalCombinationOfArguments, "--all", //$NON-NLS-1$
					"--only")); //$NON-NLS-1$
		this.all = all;
		return this;
	}

	/**
	 * Used to amend the tip of the current branch. If set to {@code true}, the
	 * previous commit will be amended. This is equivalent to --amend on the
	 * command line.
	 *
	 * @param amend
	 *            whether to amend the tip of the current branch
	 * @return {@code this}
	 */
	public CommitCommand setAmend(boolean amend) {
		checkCallable();
		this.amend = amend;
		return this;
	}

	/**
	 * Commit dedicated path only.
	 * <p>
	 * This method can be called several times to add multiple paths. Full file
	 * paths are supported as well as directory paths; in the latter case this
	 * commits all files/directories below the specified path.
	 *
	 * @param only
	 *            path to commit (with <code>/</code> as separator)
	 * @return {@code this}
	 */
	public CommitCommand setOnly(String only) {
		checkCallable();
		if (all)
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().illegalCombinationOfArguments, "--only", //$NON-NLS-1$
					"--all")); //$NON-NLS-1$
		String o = only.endsWith("/") ? only.substring(0, only.length() - 1) //$NON-NLS-1$
				: only;
		// ignore duplicates
		if (!this.only.contains(o))
			this.only.add(o);
		return this;
	}

	/**
	 * If set to true a change id will be inserted into the commit message
	 *
	 * An existing change id is not replaced. An initial change id (I000...)
	 * will be replaced by the change id.
	 *
	 * @param insertChangeId
	 *            whether to insert a change id
	 * @return {@code this}
	 */
	public CommitCommand setInsertChangeId(boolean insertChangeId) {
		checkCallable();
		this.insertChangeId = insertChangeId;
		return this;
	}

	/**
	 * Override the message written to the reflog
	 *
	 * @param reflogComment
	 *            the comment to be written into the reflog or <code>null</code>
	 *            to specify that no reflog should be written
	 * @return {@code this}
	 */
	public CommitCommand setReflogComment(String reflogComment) {
		this.reflogComment = reflogComment;
		useDefaultReflogMessage = false;
		return this;
	}

	/**
	 * Sets the {@link #noVerify} option on this commit command.
	 * <p>
	 * Both the pre-commit and commit-msg hooks can block a commit by their
	 * return value; setting this option to <code>true</code> will bypass these
	 * two hooks.
	 * </p>
	 *
	 * @param noVerify
	 *            Whether this commit should be verified by the pre-commit and
	 *            commit-msg hooks.
	 * @return {@code this}
	 * @since 3.7
	 */
	public CommitCommand setNoVerify(boolean noVerify) {
		this.noVerify = noVerify;
		return this;
	}

	/**
	 * Set the output stream for all hook scripts executed by this command
	 * (pre-commit, commit-msg, post-commit). If not set it defaults to
	 * {@code System.out}.
	 *
	 * @param hookStdOut
	 *            the output stream for hook scripts executed by this command
	 * @return {@code this}
	 * @since 3.7
	 */
	public CommitCommand setHookOutputStream(PrintStream hookStdOut) {
		setHookOutputStream(PreCommitHook.NAME, hookStdOut);
		setHookOutputStream(CommitMsgHook.NAME, hookStdOut);
		setHookOutputStream(PostCommitHook.NAME, hookStdOut);
		return this;
	}

	/**
	 * Set the error stream for all hook scripts executed by this command
	 * (pre-commit, commit-msg, post-commit). If not set it defaults to
	 * {@code System.err}.
	 *
	 * @param hookStdErr
	 *            the error stream for hook scripts executed by this command
	 * @return {@code this}
	 * @since 5.6
	 */
	public CommitCommand setHookErrorStream(PrintStream hookStdErr) {
		setHookErrorStream(PreCommitHook.NAME, hookStdErr);
		setHookErrorStream(CommitMsgHook.NAME, hookStdErr);
		setHookErrorStream(PostCommitHook.NAME, hookStdErr);
		return this;
	}

	/**
	 * Set the output stream for a selected hook script executed by this command
	 * (pre-commit, commit-msg, post-commit). If not set it defaults to
	 * {@code System.out}.
	 *
	 * @param hookName
	 *            name of the hook to set the output stream for
	 * @param hookStdOut
	 *            the output stream to use for the selected hook
	 * @return {@code this}
	 * @since 4.5
	 */
	public CommitCommand setHookOutputStream(String hookName,
			PrintStream hookStdOut) {
		if (!(PreCommitHook.NAME.equals(hookName)
				|| CommitMsgHook.NAME.equals(hookName)
				|| PostCommitHook.NAME.equals(hookName))) {
			throw new IllegalArgumentException(
					MessageFormat.format(JGitText.get().illegalHookName,
							hookName));
		}
		hookOutRedirect.put(hookName, hookStdOut);
		return this;
	}

	/**
	 * Set the error stream for a selected hook script executed by this command
	 * (pre-commit, commit-msg, post-commit). If not set it defaults to
	 * {@code System.err}.
	 *
	 * @param hookName
	 *            name of the hook to set the output stream for
	 * @param hookStdErr
	 *            the output stream to use for the selected hook
	 * @return {@code this}
	 * @since 5.6
	 */
	public CommitCommand setHookErrorStream(String hookName,
			PrintStream hookStdErr) {
		if (!(PreCommitHook.NAME.equals(hookName)
				|| CommitMsgHook.NAME.equals(hookName)
				|| PostCommitHook.NAME.equals(hookName))) {
			throw new IllegalArgumentException(MessageFormat
					.format(JGitText.get().illegalHookName, hookName));
		}
		hookErrRedirect.put(hookName, hookStdErr);
		return this;
	}

	/**
	 * Sets the signing key
	 * <p>
	 * Per spec of user.signingKey: this will be sent to the GPG program as is,
	 * i.e. can be anything supported by the GPG program.
	 * </p>
	 * <p>
	 * Note, if none was set or <code>null</code> is specified a default will be
	 * obtained from the configuration.
	 * </p>
	 *
	 * @param signingKey
	 *            signing key (maybe <code>null</code>)
	 * @return {@code this}
	 * @since 5.3
	 */
	public CommitCommand setSigningKey(String signingKey) {
		checkCallable();
		this.signingKey = signingKey;
		return this;
	}

	/**
	 * Sets whether the commit should be signed.
	 *
	 * @param sign
	 *            <code>true</code> to sign, <code>false</code> to not sign and
	 *            <code>null</code> for default behavior (read from
	 *            configuration)
	 * @return {@code this}
	 * @since 5.3
	 */
	public CommitCommand setSign(Boolean sign) {
		checkCallable();
		this.signCommit = sign;
		return this;
	}

	/**
	 * Sets the {@link Signer} to use if the commit is to be signed.
	 *
	 * @param signer
	 *            to use; if {@code null}, the default signer will be used
	 * @return {@code this}
	 * @since 7.0
	 */
	public CommitCommand setSigner(Signer signer) {
		checkCallable();
		this.signer = signer;
		return this;
	}

	/**
	 * Sets an external {@link GpgConfig} to use. Whether it will be used is at
	 * the discretion of the {@link #setSigner(Signer)}.
	 *
	 * @param config
	 *            to set; if {@code null}, the config will be loaded from the
	 *            git config of the repository
	 * @return {@code this}
	 * @since 5.11
	 */
	public CommitCommand setGpgConfig(GpgConfig config) {
		checkCallable();
		this.gpgConfig = config;
		return this;
	}

	/**
	 * Sets a {@link CredentialsProvider}
	 *
	 * @param credentialsProvider
	 *            the provider to use when querying for credentials (eg., during
	 *            signing)
	 * @return {@code this}
	 * @since 6.0
	 */
	public CommitCommand setCredentialsProvider(
			CredentialsProvider credentialsProvider) {
		this.credentialsProvider = credentialsProvider;
		return this;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 10220
Content-Disposition: inline; filename="CreateBranchCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "013e0ff131891506b6738180b7a8198d3d1123d6"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.HEAD;
import static org.eclipse.jgit.lib.Constants.R_HEADS;

import java.io.IOException;
import java.text.MessageFormat;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.RefAlreadyExistsException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.errors.AmbiguousObjectException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Used to create a local branch.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-branch.html"
 *      >Git documentation about Branch</a>
 */
public class CreateBranchCommand extends GitCommand<Ref> {
	private String name;

	private boolean force = false;

	private SetupUpstreamMode upstreamMode;

	private String startPoint = HEAD;

	private RevCommit startCommit;

	/**
	 * The modes available for setting up the upstream configuration
	 * (corresponding to the --set-upstream, --track, --no-track options
	 *
	 */
	public enum SetupUpstreamMode {
		/**
		 * Corresponds to the --track option
		 */
		TRACK,
		/**
		 * Corresponds to the --no-track option
		 */
		NOTRACK,
		/**
		 * Corresponds to the --set-upstream option
		 */
		SET_UPSTREAM;
	}

	/**
	 * Constructor for CreateBranchCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected CreateBranchCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Ref call() throws GitAPIException, RefAlreadyExistsException,
			RefNotFoundException, InvalidRefNameException {
		checkCallable();
		processOptions();
		try (RevWalk revWalk = new RevWalk(repo)) {
			boolean exists = repo.findRef(R_HEADS + name) != null;
			if (!force && exists)
				throw new RefAlreadyExistsException(MessageFormat.format(
						JGitText.get().refAlreadyExists1, name));

			ObjectId startAt = getStartPointObjectId();
			String startPointFullName = null;
			if (startPoint != null) {
				Ref baseRef = repo.findRef(startPoint);
				if (baseRef != null)
					startPointFullName = baseRef.getName();
			}

			// determine whether we are based on a commit,
			// a branch, or a tag and compose the reflog message
			String refLogMessage;
			String baseBranch = ""; //$NON-NLS-1$
			if (startPointFullName == null) {
				String baseCommit;
				if (startCommit != null)
					baseCommit = startCommit.getShortMessage();
				else {
					RevCommit commit = revWalk.parseCommit(repo
							.resolve(getStartPointOrHead()));
					baseCommit = commit.getShortMessage();
				}
				if (exists)
					refLogMessage = "branch: Reset start-point to commit " //$NON-NLS-1$
							+ baseCommit;
				else
					refLogMessage = "branch: Created from commit " + baseCommit; //$NON-NLS-1$

			} else if (startPointFullName.startsWith(R_HEADS)
					|| startPointFullName.startsWith(Constants.R_REMOTES)) {
				baseBranch = startPointFullName;
				if (exists)
					refLogMessage = "branch: Reset start-point to branch " //$NON-NLS-1$
							+ startPointFullName; // TODO
				else
					refLogMessage = "branch: Created from branch " + baseBranch; //$NON-NLS-1$
			} else {
				startAt = revWalk.peel(revWalk.parseAny(startAt));
				if (exists)
					refLogMessage = "branch: Reset start-point to tag " //$NON-NLS-1$
							+ startPointFullName;
				else
					refLogMessage = "branch: Created from tag " //$NON-NLS-1$
							+ startPointFullName;
			}

			RefUpdate updateRef = repo.updateRef(R_HEADS + name);
			updateRef.setNewObjectId(startAt);
			updateRef.setRefLogMessage(refLogMessage, false);
			Result updateResult;
			if (exists && force)
				updateResult = updateRef.forceUpdate();
			else
				updateResult = updateRef.update();

			setCallable(false);

			boolean ok = false;
			switch (updateResult) {
			case NEW:
				ok = !exists;
				break;
			case NO_CHANGE:
			case FAST_FORWARD:
			case FORCED:
				ok = exists;
				break;
			default:
				break;
			}

			if (!ok)
				throw new JGitInternalException(MessageFormat.format(JGitText
						.get().createBranchUnexpectedResult, updateResult
						.name()));

			Ref result = repo.findRef(name);
			if (result == null)
				throw new JGitInternalException(
						JGitText.get().createBranchFailedUnknownReason);

			if (baseBranch.length() == 0) {
				return result;
			}

			// if we are based on another branch, see
			// if we need to configure upstream configuration: first check
			// whether the setting was done explicitly
			boolean doConfigure;
			if (upstreamMode == SetupUpstreamMode.SET_UPSTREAM
					|| upstreamMode == SetupUpstreamMode.TRACK)
				// explicitly set to configure
				doConfigure = true;
			else if (upstreamMode == SetupUpstreamMode.NOTRACK)
				// explicitly set to not configure
				doConfigure = false;
			else {
				// if there was no explicit setting, check the configuration
				String autosetupflag = repo.getConfig().getString(
						ConfigConstants.CONFIG_BRANCH_SECTION, null,
						ConfigConstants.CONFIG_KEY_AUTOSETUPMERGE);
				if ("false".equals(autosetupflag)) { //$NON-NLS-1$
					doConfigure = false;
				} else if ("always".equals(autosetupflag)) { //$NON-NLS-1$
					doConfigure = true;
				} else {
					// in this case, the default is to configure
					// only in case the base branch was a remote branch
					doConfigure = baseBranch.startsWith(Constants.R_REMOTES);
				}
			}

			if (doConfigure) {
				StoredConfig config = repo.getConfig();

				String remoteName = repo.getRemoteName(baseBranch);
				if (remoteName != null) {
					String branchName = repo
							.shortenRemoteBranchName(baseBranch);
					config
							.setString(ConfigConstants.CONFIG_BRANCH_SECTION,
									name, ConfigConstants.CONFIG_KEY_REMOTE,
									remoteName);
					config.setString(ConfigConstants.CONFIG_BRANCH_SECTION,
							name, ConfigConstants.CONFIG_KEY_MERGE,
							Constants.R_HEADS + branchName);
				} else {
					// set "." as remote
					config.setString(ConfigConstants.CONFIG_BRANCH_SECTION,
							name, ConfigConstants.CONFIG_KEY_REMOTE, "."); //$NON-NLS-1$
					config.setString(ConfigConstants.CONFIG_BRANCH_SECTION,
							name, ConfigConstants.CONFIG_KEY_MERGE, baseBranch);
				}
				config.save();
			}
			return result;
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	private ObjectId getStartPointObjectId() throws AmbiguousObjectException,
			RefNotFoundException, IOException {
		if (startCommit != null)
			return startCommit.getId();
		String startPointOrHead = getStartPointOrHead();
		ObjectId result = repo.resolve(startPointOrHead);
		if (result == null)
			throw new RefNotFoundException(MessageFormat.format(
					JGitText.get().refNotResolved, startPointOrHead));
		return result;
	}

	private String getStartPointOrHead() {
		return startPoint != null ? startPoint : HEAD;
	}

	private void processOptions() throws InvalidRefNameException {
		if (name == null
				|| !Repository.isValidRefName(R_HEADS + name)
				|| !isValidBranchName(name))
			throw new InvalidRefNameException(MessageFormat.format(JGitText
					.get().branchNameInvalid, name == null ? "<null>" : name)); //$NON-NLS-1$
	}

	/**
	 * Check if the given branch name is valid
	 *
	 * @param branchName
	 *            branch name to check
	 * @return {@code true} if the branch name is valid
	 *
	 * @since 5.0
	 */
	public static boolean isValidBranchName(String branchName) {
		if (HEAD.equals(branchName)) {
			return false;
		}
		return !branchName.startsWith("-"); //$NON-NLS-1$
	}

	/**
	 * Set the name of the new branch
	 *
	 * @param name
	 *            the name of the new branch
	 * @return this instance
	 */
	public CreateBranchCommand setName(String name) {
		checkCallable();
		this.name = name;
		return this;
	}

	/**
	 * Set whether to create the branch forcefully
	 *
	 * @param force
	 *            if <code>true</code> and the branch with the given name
	 *            already exists, the start-point of an existing branch will be
	 *            set to a new start-point; if false, the existing branch will
	 *            not be changed
	 * @return this instance
	 */
	public CreateBranchCommand setForce(boolean force) {
		checkCallable();
		this.force = force;
		return this;
	}

	/**
	 * Set the start point
	 *
	 * @param startPoint
	 *            corresponds to the start-point option; if <code>null</code>,
	 *            the current HEAD will be used
	 * @return this instance
	 */
	public CreateBranchCommand setStartPoint(String startPoint) {
		checkCallable();
		this.startPoint = startPoint;
		this.startCommit = null;
		return this;
	}

	/**
	 * Set the start point
	 *
	 * @param startPoint
	 *            corresponds to the start-point option; if <code>null</code>,
	 *            the current HEAD will be used
	 * @return this instance
	 */
	public CreateBranchCommand setStartPoint(RevCommit startPoint) {
		checkCallable();
		this.startCommit = startPoint;
		this.startPoint = null;
		return this;
	}

	/**
	 * Set the upstream mode
	 *
	 * @param mode
	 *            corresponds to the --track/--no-track/--set-upstream options;
	 *            may be <code>null</code>
	 * @return this instance
	 */
	public CreateBranchCommand setUpstreamMode(SetupUpstreamMode mode) {
		checkCallable();
		this.upstreamMode = mode;
		return this;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 8487
Content-Disposition: inline; filename="DeleteBranchCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "a5c535f772df9c20575aa638e1128f1a9ddf335a"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2010, 2023 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.jgit.api.errors.CannotDeleteCurrentBranchException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NotMergedException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Used to delete one or several branches.
 *
 * The result of {@link #call()} is a list with the (full) names of the deleted
 * branches.
 *
 * Note that we don't have a setter corresponding to the -r option; remote
 * tracking branches are simply deleted just like local branches.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-branch.html"
 *      >Git documentation about Branch</a>
 */
public class DeleteBranchCommand extends GitCommand<List<String>> {

	private final Set<String> branchNames = new HashSet<>();

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private boolean force;

	/**
	 * Constructor for DeleteBranchCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected DeleteBranchCommand(Repository repo) {
		super(repo);
	}

	@Override
	public List<String> call() throws GitAPIException,
			NotMergedException, CannotDeleteCurrentBranchException {
		checkCallable();
		List<String> result = new ArrayList<>();
		Set<String> shortNames = new HashSet<>();
		if (branchNames.isEmpty()) {
			return result;
		}
		Exception error = null;
		try {
			deleteBranches(result, shortNames);
		} catch (Exception e) {
			error = e;
		}
		monitor.beginTask(JGitText.get().updatingConfig, 1);
		try {
			updateConfig(shortNames, error);
		} finally {
			monitor.update(1);
			monitor.endTask();
		}
		return result;
	}

	private void deleteBranches(List<String> result,
			Set<String> shortNames) throws GitAPIException, NotMergedException,
			CannotDeleteCurrentBranchException {
		try {
			String currentBranch = repo.getFullBranch();
			if (!force) {
				// check if the branches to be deleted
				// are all merged into the current branch
				try (RevWalk walk = new RevWalk(repo)) {
					RevCommit tip = walk
							.parseCommit(repo.resolve(Constants.HEAD));
					for (String branchName : branchNames) {
						if (branchName == null) {
							continue;
						}
						Ref currentRef = repo.findRef(branchName);
						if (currentRef == null) {
							continue;
						}
						RevCommit base = walk
								.parseCommit(repo.resolve(branchName));
						if (!walk.isMergedInto(base, tip)) {
							throw new NotMergedException();
						}
					}
				}
			}
			setCallable(false);
			monitor.start(2);
			monitor.beginTask(JGitText.get().deletingBranches,
					branchNames.size());
			try {
				for (String branchName : branchNames) {
					if (branchName == null) {
						monitor.update(1);
						continue;
					}
					Ref currentRef = repo.findRef(branchName);
					if (currentRef == null) {
						monitor.update(1);
						continue;
					}
					String fullName = currentRef.getName();
					if (fullName.equals(currentBranch)) {
						throw new CannotDeleteCurrentBranchException(
								MessageFormat.format(JGitText
										.get().cannotDeleteCheckedOutBranch,
										branchName));
					}
					RefUpdate update = repo.updateRef(fullName);
					update.setRefLogMessage("branch deleted", false); //$NON-NLS-1$
					update.setForceUpdate(true);
					Result deleteResult = update.delete();

					switch (deleteResult) {
					case IO_FAILURE:
					case LOCK_FAILURE:
					case REJECTED:
						throw new JGitInternalException(MessageFormat.format(
								JGitText.get().deleteBranchUnexpectedResult,
								deleteResult.name()));
					default:
						result.add(fullName);
						if (fullName.startsWith(Constants.R_HEADS)) {
							shortNames.add(fullName
									.substring(Constants.R_HEADS.length()));
						}
						break;
					}
					monitor.update(1);
					if (monitor.isCancelled()) {
						break;
					}
				}
			} finally {
				monitor.endTask();
			}
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	private void updateConfig(Set<String> shortNames, Exception error)
			throws GitAPIException {
		IOException configError = null;
		if (!shortNames.isEmpty()) {
			try {
				// Remove upstream configurations if any
				StoredConfig cfg = repo.getConfig();
				boolean changed = false;
				for (String branchName : shortNames) {
					changed |= cfg.removeSection(
							ConfigConstants.CONFIG_BRANCH_SECTION,
							branchName);
				}
				if (changed) {
					cfg.save();
				}
			} catch (IOException e) {
				configError = e;
			}
		}
		if (error == null) {
			if (configError != null) {
				throw new JGitInternalException(configError.getMessage(),
						configError);
			}
		} else if (error instanceof GitAPIException) {
			if (configError != null) {
				error.addSuppressed(configError);
			}
			throw (GitAPIException) error;
		} else if (error instanceof RuntimeException) {
			if (configError != null) {
				error.addSuppressed(configError);
			}
			throw (RuntimeException) error;
		} else {
			JGitInternalException internal = new JGitInternalException(
					error.getMessage(), error);
			if (configError != null) {
				internal.addSuppressed(configError);
			}
			throw internal;
		}
	}

	/**
	 * Set the names of the branches to delete
	 *
	 * @param branchnames
	 *            the names of the branches to delete; if not set, this will do
	 *            nothing; invalid branch names will simply be ignored
	 * @return this instance
	 */
	public DeleteBranchCommand setBranchNames(String... branchnames) {
		checkCallable();
		this.branchNames.clear();
		this.branchNames.addAll(Arrays.asList(branchnames));
		return this;
	}

	/**
	 * Sets the names of the branches to delete
	 *
	 * @param branchNames
	 *            the names of the branches to delete; if not set, this will do
	 *            nothing; invalid branch names will simply be ignored
	 * @return {@code this}
	 * @since 6.8
	 */
	public DeleteBranchCommand setBranchNames(Collection<String> branchNames) {
		checkCallable();
		this.branchNames.clear();
		this.branchNames.addAll(branchNames);
		return this;
	}

	/**
	 * Set whether to forcefully delete branches
	 *
	 * @param force
	 *            <code>true</code> corresponds to the -D option,
	 *            <code>false</code> to the -d option (default) <br>
	 *            if <code>false</code> a check will be performed whether the
	 *            branch to be deleted is already merged into the current branch
	 *            and deletion will be refused in this case
	 * @return this instance
	 */
	public DeleteBranchCommand setForce(boolean force) {
		checkCallable();
		this.force = force;
		return this;
	}

	/**
	 * Retrieves the progress monitor.
	 *
	 * @return the {@link ProgressMonitor} for the delete operation
	 * @since 6.8
	 */
	public ProgressMonitor getProgressMonitor() {
		return monitor;
	}

	/**
	 * Sets the progress monitor associated with the delete operation. By
	 * default, this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link ProgressMonitor}
	 * @return {@code this}
	 * @since 6.8
	 */
	public DeleteBranchCommand setProgressMonitor(ProgressMonitor monitor) {
		checkCallable();
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 2825
Content-Disposition: inline; filename="DeleteTagCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "92d88aad7d8ef7a8fcd9dd6da16e1b9f05bd7f98"

/*
 * Copyright (C) 2011, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;

/**
 * Used to delete one or several tags.
 *
 * The result of {@link #call()} is a list with the (full) names of the deleted
 * tags.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-tag.html"
 *      >Git documentation about Tag</a>
 */
public class DeleteTagCommand extends GitCommand<List<String>> {

	private final Set<String> tags = new HashSet<>();

	/**
	 * Constructor for DeleteTagCommand
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected DeleteTagCommand(Repository repo) {
		super(repo);
	}

	@Override
	public List<String> call() throws GitAPIException {
		checkCallable();
		List<String> result = new ArrayList<>();
		if (tags.isEmpty())
			return result;
		try {
			setCallable(false);
			for (String tagName : tags) {
				if (tagName == null)
					continue;
				Ref currentRef = repo.findRef(tagName);
				if (currentRef == null)
					continue;
				String fullName = currentRef.getName();
				RefUpdate update = repo.updateRef(fullName);
				update.setForceUpdate(true);
				Result deleteResult = update.delete();

				boolean ok = true;
				switch (deleteResult) {
				case IO_FAILURE:
				case LOCK_FAILURE:
				case REJECTED:
					ok = false;
					break;
				default:
					break;
				}

				if (ok) {
					result.add(fullName);
				} else
					throw new JGitInternalException(MessageFormat.format(
							JGitText.get().deleteTagUnexpectedResult,
							deleteResult.name()));
			}
			return result;
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	/**
	 * Set names of the tags to delete
	 *
	 * @param tags
	 *            the names of the tags to delete; if not set, this will do
	 *            nothing; invalid tag names will simply be ignored
	 * @return this instance
	 */
	public DeleteTagCommand setTags(String... tags) {
		checkCallable();
		this.tags.clear();
		this.tags.addAll(Arrays.asList(tags));
		return this;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 15860
Content-Disposition: inline; filename="DescribeCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "d2526287f99588620d68c3215d2e8572b10a84a9"

/*
 * Copyright (C) 2013, CloudBees, Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.R_REFS;
import static org.eclipse.jgit.lib.Constants.R_TAGS;
import static org.eclipse.jgit.lib.TypedConfigGetter.UNSET_INT;

import java.io.IOException;
import java.text.MessageFormat;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.InvalidPatternException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.fnmatch.FileNameMatcher;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AbbrevConfig;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevFlag;
import org.eclipse.jgit.revwalk.RevFlagSet;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Given a commit, show the most recent tag that is reachable from a commit.
 *
 * @since 3.2
 */
public class DescribeCommand extends GitCommand<String> {
	private final RevWalk w;

	/**
	 * Commit to describe.
	 */
	private RevCommit target;

	/**
	 * How many tags we'll consider as candidates.
	 * This can only go up to the number of flags JGit can support in a walk,
	 * which is 24.
	 */
	private int maxCandidates = 10;

	/**
	 * Whether to always use long output format or not.
	 */
	private boolean longDesc;

	/**
	 * Pattern matchers to be applied to tags under consideration.
	 */
	private List<FileNameMatcher> matchers = new ArrayList<>();

	/**
	 * Pattern matchers to be applied to tags for exclusion.
	 */
	private List<FileNameMatcher> excludeMatchers = new ArrayList<>();

	/**
	 * Whether to use all refs in the refs/ namespace
	 */
	private boolean useAll;

	/**
	 * Whether to use all tags (incl. lightweight) or not.
	 */
	private boolean useTags;

	/**
	 * Whether to show a uniquely abbreviated commit hash as a fallback or not.
	 */
	private boolean always;

	/**
	 * The prefix length to use when abbreviating a commit hash.
	 */
	private int abbrev = UNSET_INT;

	/**
	 * Constructor for DescribeCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected DescribeCommand(Repository repo) {
		super(repo);
		w = new RevWalk(repo);
		w.setRetainBody(false);
	}

	/**
	 * Sets the commit to be described.
	 *
	 * @param target
	 * 		A non-null object ID to be described.
	 * @return {@code this}
	 * @throws MissingObjectException
	 *             the supplied commit does not exist.
	 * @throws IncorrectObjectTypeException
	 *             the supplied id is not a commit or an annotated tag.
	 * @throws java.io.IOException
	 *             a pack file or loose object could not be read.
	 */
	public DescribeCommand setTarget(ObjectId target) throws IOException {
		this.target = w.parseCommit(target);
		return this;
	}

	/**
	 * Sets the commit to be described.
	 *
	 * @param rev
	 *            Commit ID, tag, branch, ref, etc. See
	 *            {@link org.eclipse.jgit.lib.Repository#resolve(String)} for
	 *            allowed syntax.
	 * @return {@code this}
	 * @throws IncorrectObjectTypeException
	 *             the supplied id is not a commit or an annotated tag.
	 * @throws org.eclipse.jgit.api.errors.RefNotFoundException
	 *             the given rev didn't resolve to any object.
	 * @throws java.io.IOException
	 *             a pack file or loose object could not be read.
	 */
	public DescribeCommand setTarget(String rev) throws IOException,
			RefNotFoundException {
		ObjectId id = repo.resolve(rev);
		if (id == null)
			throw new RefNotFoundException(MessageFormat.format(JGitText.get().refNotResolved, rev));
		return setTarget(id);
	}

	/**
	 * Determine whether always to use the long format or not. When set to
	 * <code>true</code> the long format is used even the commit matches a tag.
	 *
	 * @param longDesc
	 *            <code>true</code> if always the long format should be used.
	 * @return {@code this}
	 * @see <a
	 *      href="https://www.kernel.org/pub/software/scm/git/docs/git-describe.html"
	 *      >Git documentation about describe</a>
	 * @since 4.0
	 */
	public DescribeCommand setLong(boolean longDesc) {
		this.longDesc = longDesc;
		return this;
	}

	/**
	 * Instead of using only the annotated tags, use any ref found in refs/
	 * namespace. This option enables matching any known branch,
	 * remote-tracking branch, or lightweight tag.
	 *
	 * @param all
	 *            <code>true</code> enables matching any ref found in refs/
	 *            like setting option --all in c git
	 * @return {@code this}
	 * @since 5.10
	 */
	public DescribeCommand setAll(boolean all) {
		this.useAll = all;
		return this;
	}

	/**
	 * Instead of using only the annotated tags, use any tag found in refs/tags
	 * namespace. This option enables matching lightweight (non-annotated) tags
	 * or not.
	 *
	 * @param tags
	 *            <code>true</code> enables matching lightweight (non-annotated)
	 *            tags like setting option --tags in c git
	 * @return {@code this}
	 * @since 5.0
	 */
	public DescribeCommand setTags(boolean tags) {
		this.useTags = tags;
		return this;
	}

	/**
	 * Always describe the commit by eventually falling back to a uniquely
	 * abbreviated commit hash if no other name matches.
	 *
	 * @param always
	 *            <code>true</code> enables falling back to a uniquely
	 *            abbreviated commit hash
	 * @return {@code this}
	 * @since 5.4
	 */
	public DescribeCommand setAlways(boolean always) {
		this.always = always;
		return this;
	}

	/**
	 * Sets the prefix length to use when abbreviating an object SHA-1.
	 *
	 * @param abbrev
	 *            minimum length of the abbreviated string. Must be in the range
	 *            [{@value AbbrevConfig#MIN_ABBREV},
	 *            {@value Constants#OBJECT_ID_STRING_LENGTH}].
	 * @return {@code this}
	 * @since 6.1
	 */
	public DescribeCommand setAbbrev(int abbrev) {
		if (abbrev == 0) {
			this.abbrev = 0;
		} else {
			this.abbrev = AbbrevConfig.capAbbrev(abbrev);
		}
		return this;
	}

	private String longDescription(Ref tag, int depth, ObjectId tip)
			throws IOException {
		if (abbrev == 0) {
			return formatRefName(tag.getName());
		}
		return String.format("%s-%d-g%s", formatRefName(tag.getName()), //$NON-NLS-1$
				Integer.valueOf(depth),
				w.getObjectReader().abbreviate(tip, abbrev).name());
	}

	/**
	 * Sets one or more {@code glob(7)} patterns that tags must match to be
	 * considered. If multiple patterns are provided, tags only need match one
	 * of them.
	 *
	 * @param patterns
	 *            the {@code glob(7)} pattern or patterns
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.InvalidPatternException
	 *             if the pattern passed in was invalid.
	 * @see <a href=
	 *      "https://www.kernel.org/pub/software/scm/git/docs/git-describe.html"
	 *      >Git documentation about describe</a>
	 * @since 4.9
	 */
	public DescribeCommand setMatch(String... patterns) throws InvalidPatternException {
		for (String p : patterns) {
			matchers.add(new FileNameMatcher(p, null));
		}
		return this;
	}

	/**
	 * Sets one or more {@code glob(7)} patterns that tags must not match to be
	 * considered. If multiple patterns are provided, they will all be applied.
	 *
	 * @param patterns
	 *            the {@code glob(7)} pattern or patterns
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.InvalidPatternException
	 *             if the pattern passed in was invalid.
	 * @see <a href=
	 *      "https://www.kernel.org/pub/software/scm/git/docs/git-describe.html"
	 *      >Git documentation about describe</a>
	 * @since 7.2
	 */
	public DescribeCommand setExclude(String... patterns) throws InvalidPatternException {
		for (String p : patterns) {
			excludeMatchers.add(new FileNameMatcher(p, null));
		}
		return this;
	}

	private final Comparator<Ref> TAG_TIE_BREAKER = new Comparator<>() {

		@Override
		public int compare(Ref o1, Ref o2) {
			try {
				return tagDate(o2).compareTo(tagDate(o1));
			} catch (IOException e) {
				return 0;
			}
		}

		private Instant tagDate(Ref tag) throws IOException {
			RevTag t = w.parseTag(tag.getObjectId());
			w.parseBody(t);
			return t.getTaggerIdent().getWhenAsInstant();
		}
	};

	private Optional<Ref> getBestMatch(List<Ref> tags) {
		if (tags == null || tags.isEmpty()) {
			return Optional.empty();
		} else if (matchers.isEmpty() && excludeMatchers.isEmpty()) {
			Collections.sort(tags, TAG_TIE_BREAKER);
			return Optional.of(tags.get(0));
		}

		Stream<Ref> matchingTags;
		if (!matchers.isEmpty()) {
			// Find the first tag that matches in the stream of all tags
			// filtered by matchers ordered by tie break order
			matchingTags = Stream.empty();
			for (FileNameMatcher matcher : matchers) {
				Stream<Ref> m = tags.stream().filter( //
						tag -> {
							matcher.append(formatRefName(tag.getName()));
							boolean result = matcher.isMatch();
							matcher.reset();
							return result;
						});
				matchingTags = Stream.of(matchingTags, m).flatMap(i -> i);
			}
		} else {
			// If there are no matchers, there are only excluders
			// Assume all tags match for now before applying excluders
			matchingTags = tags.stream();
		}

		for (FileNameMatcher matcher : excludeMatchers) {
			matchingTags = matchingTags.filter( //
					tag -> {
						matcher.append(formatRefName(tag.getName()));
						boolean result = matcher.isMatch();
						matcher.reset();
						return !result;
					});
		}
		return matchingTags.sorted(TAG_TIE_BREAKER).findFirst();
	}

	private ObjectId getObjectIdFromRef(Ref r) throws JGitInternalException {
		try {
			ObjectId key = repo.getRefDatabase().peel(r).getPeeledObjectId();
			if (key == null) {
				key = r.getObjectId();
			}
			return key;
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Describes the specified commit. Target defaults to HEAD if no commit was
	 * set explicitly.
	 */
	@Override
	public String call() throws GitAPIException {
		try {
			checkCallable();
			if (target == null) {
				setTarget(Constants.HEAD);
			}
			if (abbrev == UNSET_INT) {
				abbrev = AbbrevConfig.parseFromConfig(repo).get();
			}

			Collection<Ref> tagList = repo.getRefDatabase()
					.getRefsByPrefix(useAll ? R_REFS : R_TAGS);
			Map<ObjectId, List<Ref>> tags = tagList.stream()
					.filter(this::filterLightweightTags)
					.collect(Collectors.groupingBy(this::getObjectIdFromRef));

			// combined flags of all the candidate instances
			final RevFlagSet allFlags = new RevFlagSet();

			/**
			 * Tracks the depth of each tag as we find them.
			 */
			class Candidate {
				final Ref tag;
				final RevFlag flag;

				/**
				 * This field counts number of commits that are reachable from
				 * the tip but not reachable from the tag.
				 */
				int depth;

				Candidate(RevCommit commit, Ref tag) {
					this.tag = tag;
					this.flag = w.newFlag(tag.getName());
					// we'll mark all the nodes reachable from this tag accordingly
					allFlags.add(flag);
					w.carry(flag);
					commit.add(flag);
					// As of this writing, JGit carries a flag from a child to its parents
					// right before RevWalk.next() returns, so all the flags that are added
					// must be manually carried to its parents. If that gets fixed,
					// this will be unnecessary.
					commit.carry(flag);
				}

				/**
				 * Does this tag contain the given commit?
				 */
				boolean reaches(RevCommit c) {
					return c.has(flag);
				}

				String describe(ObjectId tip) throws IOException {
					return longDescription(tag, depth, tip);
				}

			}
			List<Candidate> candidates = new ArrayList<>();    // all the candidates we find

			// is the target already pointing to a suitable tag? if so, we are done!
			Optional<Ref> bestMatch = getBestMatch(tags.get(target));
			if (bestMatch.isPresent()) {
				return longDesc ? longDescription(bestMatch.get(), 0, target) :
						formatRefName(bestMatch.get().getName());
			}

			w.markStart(target);

			int seen = 0;   // commit seen thus far
			RevCommit c;
			while ((c = w.next()) != null) {
				if (!c.hasAny(allFlags)) {
					// if a tag already dominates this commit,
					// then there's no point in picking a tag on this commit
					// since the one that dominates it is always more preferable
					bestMatch = getBestMatch(tags.get(c));
					if (bestMatch.isPresent()) {
						Candidate cd = new Candidate(c, bestMatch.get());
						candidates.add(cd);
						cd.depth = seen;
					}
				}

				// if the newly discovered commit isn't reachable from a tag that we've seen
				// it counts toward the total depth.
				for (Candidate cd : candidates) {
					if (!cd.reaches(c))
						cd.depth++;
				}

				// if we have search going for enough tags, we will start
				// closing down. JGit can only give us a finite number of bits,
				// so we can't track all tags even if we wanted to.
				if (candidates.size() >= maxCandidates)
					break;

				// TODO: if all the commits in the queue of RevWalk has allFlags
				// there's no point in continuing search as we'll not discover any more
				// tags. But RevWalk doesn't expose this.
				seen++;
			}

			// at this point we aren't adding any more tags to our search,
			// but we still need to count all the depths correctly.
			while ((c = w.next()) != null) {
				if (c.hasAll(allFlags)) {
					// no point in visiting further from here, so cut the search here
					for (RevCommit p : c.getParents())
						p.add(RevFlag.SEEN);
				} else {
					for (Candidate cd : candidates) {
						if (!cd.reaches(c))
							cd.depth++;
					}
				}
			}

			// if all the nodes are dominated by all the tags, the walk stops
			if (candidates.isEmpty()) {
				return always
						? w.getObjectReader()
								.abbreviate(target,
										AbbrevConfig.capAbbrev(abbrev))
								.name()
						: null;
			}

			Candidate best = Collections.min(candidates,
					(Candidate o1, Candidate o2) -> o1.depth - o2.depth);

			return best.describe(target);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} finally {
			setCallable(false);
			w.close();
		}
	}

	/**
	 * Removes the refs/ or refs/tags prefix from tag names
	 * @param name the name of the tag
	 * @return the tag name with its prefix removed
	 */
	private String formatRefName(String name) {
		return name.startsWith(R_TAGS) ? name.substring(R_TAGS.length()) :
				name.substring(R_REFS.length());
	}

	/**
	 * Whether we use lightweight tags or not for describe Candidates
	 *
	 * @param ref
	 *            reference under inspection
	 * @return true if it should be used for describe or not regarding
	 *         {@link org.eclipse.jgit.api.DescribeCommand#useTags}
	 */
	@SuppressWarnings("null")
	private boolean filterLightweightTags(Ref ref) {
		ObjectId id = ref.getObjectId();
		try {
			return this.useAll || this.useTags || (id != null && (w.parseTag(id) != null));
		} catch (IOException e) {
			return false;
		}
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 7226
Content-Disposition: inline; filename="DiffCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "040b29d8e33b8007c9a4f69cfa688b07036f39c0"

/*
 * Copyright (C) 2011, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.HEAD;

import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.diff.DiffEntry;
import org.eclipse.jgit.diff.DiffFormatter;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.AbstractTreeIterator;
import org.eclipse.jgit.treewalk.CanonicalTreeParser;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
import org.eclipse.jgit.util.io.NullOutputStream;

/**
 * Show changes between commits, commit and working tree, etc.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-diff.html"
 *      >Git documentation about diff</a>
 */
public class DiffCommand extends GitCommand<List<DiffEntry>> {
	private AbstractTreeIterator oldTree;

	private AbstractTreeIterator newTree;

	private boolean cached;

	private TreeFilter pathFilter = TreeFilter.ALL;

	private boolean showNameAndStatusOnly;

	private boolean showNameOnly;

	private OutputStream out;

	private int contextLines = -1;

	private String sourcePrefix;

	private String destinationPrefix;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * Constructor for DiffCommand
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected DiffCommand(Repository repo) {
		super(repo);
	}

	private DiffFormatter getDiffFormatter() {
		return out != null && !showNameAndStatusOnly && !showNameOnly
				? new DiffFormatter(new BufferedOutputStream(out))
				: new DiffFormatter(NullOutputStream.INSTANCE);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Diff} command with all the options and parameters
	 * collected by the setter methods (e.g. {@link #setCached(boolean)} of this
	 * class. Each instance of this class should only be used for one invocation
	 * of the command. Don't call this method twice on an instance.
	 */
	@Override
	public List<DiffEntry> call() throws GitAPIException {
		try (DiffFormatter diffFmt = getDiffFormatter()) {
			diffFmt.setRepository(repo);
			diffFmt.setProgressMonitor(monitor);
			if (cached) {
				if (oldTree == null) {
					ObjectId head = repo.resolve(HEAD + "^{tree}"); //$NON-NLS-1$
					if (head == null)
						throw new NoHeadException(JGitText.get().cannotReadTree);
					CanonicalTreeParser p = new CanonicalTreeParser();
					try (ObjectReader reader = repo.newObjectReader()) {
						p.reset(reader, head);
					}
					oldTree = p;
				}
				newTree = new DirCacheIterator(repo.readDirCache());
			} else {
				if (oldTree == null) {
					oldTree = new DirCacheIterator(repo.readDirCache());
				}
				if (newTree == null) {
					newTree = new FileTreeIterator(repo);
				}
			}

			diffFmt.setPathFilter(pathFilter);

			List<DiffEntry> result = diffFmt.scan(oldTree, newTree);
			if (showNameAndStatusOnly || showNameOnly) {
				return result;
			}
			if (contextLines >= 0) {
				diffFmt.setContext(contextLines);
			}
			if (destinationPrefix != null) {
				diffFmt.setNewPrefix(destinationPrefix);
			}
			if (sourcePrefix != null) {
				diffFmt.setOldPrefix(sourcePrefix);
			}
			diffFmt.format(result);
			diffFmt.flush();
			return result;
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * Whether to view the changes staged for the next commit
	 *
	 * @param cached
	 *            whether to view the changes staged for the next commit
	 * @return this instance
	 */
	public DiffCommand setCached(boolean cached) {
		this.cached = cached;
		return this;
	}

	/**
	 * Set path filter
	 *
	 * @param pathFilter
	 *            parameter, used to limit the diff to the named path
	 * @return this instance
	 */
	public DiffCommand setPathFilter(TreeFilter pathFilter) {
		this.pathFilter = pathFilter;
		return this;
	}

	/**
	 * Set old tree
	 *
	 * @param oldTree
	 *            the previous state
	 * @return this instance
	 */
	public DiffCommand setOldTree(AbstractTreeIterator oldTree) {
		this.oldTree = oldTree;
		return this;
	}

	/**
	 * Set new tree
	 *
	 * @param newTree
	 *            the updated state
	 * @return this instance
	 */
	public DiffCommand setNewTree(AbstractTreeIterator newTree) {
		this.newTree = newTree;
		return this;
	}

	/**
	 * Set whether to return only names and status of changed files
	 *
	 * @param showNameAndStatusOnly
	 *            whether to return only names and status of changed files
	 * @return this instance
	 */
	public DiffCommand setShowNameAndStatusOnly(boolean showNameAndStatusOnly) {
		this.showNameAndStatusOnly = showNameAndStatusOnly;
		return this;
	}

	/**
	 * Set whether to return only names of changed files
	 *
	 * @param showNameOnly
	 *            whether to return only names files
	 * @return this instance
	 * @since 6.4
	 */
	public DiffCommand setShowNameOnly(boolean showNameOnly) {
		this.showNameOnly = showNameOnly;
		return this;
	}

	/**
	 * Set output stream
	 *
	 * @param out
	 *            the stream to write line data
	 * @return this instance
	 */
	public DiffCommand setOutputStream(OutputStream out) {
		this.out = out;
		return this;
	}

	/**
	 * Set number of context lines instead of the usual three.
	 *
	 * @param contextLines
	 *            the number of context lines
	 * @return this instance
	 */
	public DiffCommand setContextLines(int contextLines) {
		this.contextLines = contextLines;
		return this;
	}

	/**
	 * Set the given source prefix instead of "a/".
	 *
	 * @param sourcePrefix
	 *            the prefix
	 * @return this instance
	 */
	public DiffCommand setSourcePrefix(String sourcePrefix) {
		this.sourcePrefix = sourcePrefix;
		return this;
	}

	/**
	 * Set the given destination prefix instead of "b/".
	 *
	 * @param destinationPrefix
	 *            the prefix
	 * @return this instance
	 */
	public DiffCommand setDestinationPrefix(String destinationPrefix) {
		this.destinationPrefix = destinationPrefix;
		return this;
	}

	/**
	 * The progress monitor associated with the diff operation. By default, this
	 * is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a progress monitor
	 * @return this instance
	 */
	public DiffCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 18511
Content-Disposition: inline; filename="FetchCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f24127bd51e72008bb5ce5d1bca8b86918e29c7a"

/*
 * Copyright (C) 2010, 2022 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static java.util.stream.Collectors.toList;

import java.io.IOException;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.time.Instant;
import java.time.OffsetDateTime;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidConfigurationException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.errors.NoRemoteRepositoryException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.lib.SubmoduleConfig.FetchRecurseSubmodulesMode;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.transport.FetchResult;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.TagOpt;
import org.eclipse.jgit.transport.Transport;

/**
 * A class used to execute a {@code Fetch} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-fetch.html"
 *      >Git documentation about Fetch</a>
 */
public class FetchCommand extends TransportCommand<FetchCommand, FetchResult> {
	private String remote = Constants.DEFAULT_REMOTE_NAME;

	private List<RefSpec> refSpecs;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private boolean checkFetchedObjects;

	private Boolean removeDeletedRefs;

	private boolean dryRun;

	private boolean thin = Transport.DEFAULT_FETCH_THIN;

	private TagOpt tagOption;

	private FetchRecurseSubmodulesMode submoduleRecurseMode = null;

	private Callback callback;

	private boolean isForceUpdate;

	private String initialBranch;

	private Integer depth;

	private Instant deepenSince;

	private List<String> shallowExcludes = new ArrayList<>();

	private boolean unshallow;

	/**
	 * Callback for status of fetch operation.
	 *
	 * @since 4.8
	 *
	 */
	public interface Callback {
		/**
		 * Notify fetching a submodule.
		 *
		 * @param name
		 *            the submodule name.
		 */
		void fetchingSubmodule(String name);
	}

	/**
	 * Constructor for FetchCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected FetchCommand(Repository repo) {
		super(repo);
		refSpecs = new ArrayList<>(3);
	}

	private FetchRecurseSubmodulesMode getRecurseMode(String path) {
		// Use the caller-specified mode, if set
		if (submoduleRecurseMode != null) {
			return submoduleRecurseMode;
		}

		// Fall back to submodule.name.fetchRecurseSubmodules, if set
		FetchRecurseSubmodulesMode mode = repo.getConfig().getEnum(
				FetchRecurseSubmodulesMode.values(),
				ConfigConstants.CONFIG_SUBMODULE_SECTION, path,
				ConfigConstants.CONFIG_KEY_FETCH_RECURSE_SUBMODULES);
		if (mode != null) {
			return mode;
		}

		// Fall back to fetch.recurseSubmodules, if set
		mode = repo.getConfig().getEnum(FetchRecurseSubmodulesMode.values(),
				ConfigConstants.CONFIG_FETCH_SECTION, null,
				ConfigConstants.CONFIG_KEY_RECURSE_SUBMODULES);
		if (mode != null) {
			return mode;
		}

		// Default to on-demand mode
		return FetchRecurseSubmodulesMode.ON_DEMAND;
	}

	private void fetchSubmodules(FetchResult results)
			throws org.eclipse.jgit.api.errors.TransportException,
			GitAPIException, InvalidConfigurationException {
		try (SubmoduleWalk walk = new SubmoduleWalk(repo);
				RevWalk revWalk = new RevWalk(repo)) {
			// Walk over submodules in the parent repository's FETCH_HEAD.
			ObjectId fetchHead = repo.resolve(Constants.FETCH_HEAD);
			if (fetchHead == null) {
				return;
			}
			if (revWalk.parseAny(fetchHead).getType() == Constants.OBJ_BLOB) {
				return;
			}
			walk.setTree(revWalk.parseTree(fetchHead));
			while (walk.next()) {
				try (Repository submoduleRepo = walk.getRepository()) {

					// Skip submodules that don't exist locally (have not been
					// cloned), are not registered in the .gitmodules file, or
					// not registered in the parent repository's config.
					if (submoduleRepo == null || walk.getModulesPath() == null
							|| walk.getConfigUrl() == null) {
						continue;
					}

					FetchRecurseSubmodulesMode recurseMode = getRecurseMode(
							walk.getPath());

					// When the fetch mode is "yes" we always fetch. When the
					// mode is "on demand", we only fetch if the submodule's
					// revision was updated to an object that is not currently
					// present in the submodule.
					if ((recurseMode == FetchRecurseSubmodulesMode.ON_DEMAND
							&& !submoduleRepo.getObjectDatabase()
									.has(walk.getObjectId()))
							|| recurseMode == FetchRecurseSubmodulesMode.YES) {
						FetchCommand f = new FetchCommand(submoduleRepo)
								.setProgressMonitor(monitor)
								.setTagOpt(tagOption)
								.setCheckFetchedObjects(checkFetchedObjects)
								.setRemoveDeletedRefs(isRemoveDeletedRefs())
								.setThin(thin)
								.setRefSpecs(applyOptions(refSpecs))
								.setDryRun(dryRun)
								.setRecurseSubmodules(recurseMode);
						configure(f);
						if (callback != null) {
							callback.fetchingSubmodule(walk.getPath());
						}
						results.addSubmodule(walk.getPath(), f.call());
					}
				}
			}
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} catch (ConfigInvalidException e) {
			throw new InvalidConfigurationException(e.getMessage(), e);
		}
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the {@code fetch} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command (means: one
	 * call to {@link #call()})
	 */
	@Override
	public FetchResult call() throws GitAPIException, InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		checkCallable();

		try (Transport transport = Transport.open(repo, remote)) {
			transport.setCheckFetchedObjects(checkFetchedObjects);
			transport.setRemoveDeletedRefs(isRemoveDeletedRefs());
			transport.setDryRun(dryRun);
			if (tagOption != null)
				transport.setTagOpt(tagOption);
			transport.setFetchThin(thin);
			if (depth != null) {
				transport.setDepth(depth);
			}
			if (unshallow) {
				if (depth != null) {
					throw new IllegalStateException(JGitText.get().depthWithUnshallow);
				}
				transport.setDepth(Constants.INFINITE_DEPTH);
			}
			if (deepenSince != null) {
				transport.setDeepenSince(deepenSince);
			}
			transport.setDeepenNots(shallowExcludes);
			configure(transport);
			FetchResult result = transport.fetch(monitor,
					applyOptions(refSpecs), initialBranch);
			if (!repo.isBare()) {
				fetchSubmodules(result);
			}

			return result;
		} catch (NoRemoteRepositoryException e) {
			throw new InvalidRemoteException(MessageFormat.format(
					JGitText.get().invalidRemote, remote), e);
		} catch (TransportException e) {
			throw new org.eclipse.jgit.api.errors.TransportException(
					e.getMessage(), e);
		} catch (URISyntaxException e) {
			throw new InvalidRemoteException(MessageFormat.format(
					JGitText.get().invalidRemote, remote), e);
		} catch (NotSupportedException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfFetchCommand,
					e);
		}

	}

	private List<RefSpec> applyOptions(List<RefSpec> refSpecs2) {
		if (!isForceUpdate()) {
			return refSpecs2;
		}
		List<RefSpec> updated = new ArrayList<>(3);
		for (RefSpec refSpec : refSpecs2) {
			updated.add(refSpec.setForceUpdate(true));
		}
		return updated;
	}

	/**
	 * Set the mode to be used for recursing into submodules.
	 *
	 * @param recurse
	 *            corresponds to the
	 *            --recurse-submodules/--no-recurse-submodules options. If
	 *            {@code null} use the value of the
	 *            {@code submodule.name.fetchRecurseSubmodules} option
	 *            configured per submodule. If not specified there, use the
	 *            value of the {@code fetch.recurseSubmodules} option configured
	 *            in git config. If not configured in either, "on-demand" is the
	 *            built-in default.
	 * @return {@code this}
	 * @since 4.7
	 */
	public FetchCommand setRecurseSubmodules(
			@Nullable FetchRecurseSubmodulesMode recurse) {
		checkCallable();
		submoduleRecurseMode = recurse;
		return this;
	}

	/**
	 * The remote (uri or name) used for the fetch operation. If no remote is
	 * set, the default value of <code>Constants.DEFAULT_REMOTE_NAME</code> will
	 * be used.
	 *
	 * @see Constants#DEFAULT_REMOTE_NAME
	 * @param remote
	 *            name of a remote
	 * @return {@code this}
	 */
	public FetchCommand setRemote(String remote) {
		checkCallable();
		this.remote = remote;
		return this;
	}

	/**
	 * Get the remote
	 *
	 * @return the remote used for the remote operation
	 */
	public String getRemote() {
		return remote;
	}

	/**
	 * Get timeout
	 *
	 * @return the timeout used for the fetch operation
	 */
	public int getTimeout() {
		return timeout;
	}

	/**
	 * Whether to check received objects for validity
	 *
	 * @return whether to check received objects for validity
	 */
	public boolean isCheckFetchedObjects() {
		return checkFetchedObjects;
	}

	/**
	 * If set to {@code true}, objects received will be checked for validity
	 *
	 * @param checkFetchedObjects
	 *            whether to check objects for validity
	 * @return {@code this}
	 */
	public FetchCommand setCheckFetchedObjects(boolean checkFetchedObjects) {
		checkCallable();
		this.checkFetchedObjects = checkFetchedObjects;
		return this;
	}

	/**
	 * Whether to remove refs which no longer exist in the source
	 *
	 * @return whether to remove refs which no longer exist in the source
	 */
	public boolean isRemoveDeletedRefs() {
		if (removeDeletedRefs != null) {
			return removeDeletedRefs.booleanValue();
		}
		// fall back to configuration
		boolean result = false;
		StoredConfig config = repo.getConfig();
		result = config.getBoolean(ConfigConstants.CONFIG_FETCH_SECTION, null,
				ConfigConstants.CONFIG_KEY_PRUNE, result);
		result = config.getBoolean(ConfigConstants.CONFIG_REMOTE_SECTION,
				remote, ConfigConstants.CONFIG_KEY_PRUNE, result);
		return result;
	}

	/**
	 * If set to {@code true}, refs are removed which no longer exist in the
	 * source
	 *
	 * @param removeDeletedRefs
	 *            whether to remove deleted {@code Ref}s
	 * @return {@code this}
	 */
	public FetchCommand setRemoveDeletedRefs(boolean removeDeletedRefs) {
		checkCallable();
		this.removeDeletedRefs = Boolean.valueOf(removeDeletedRefs);
		return this;
	}

	/**
	 * Get progress monitor
	 *
	 * @return the progress monitor for the fetch operation
	 */
	public ProgressMonitor getProgressMonitor() {
		return monitor;
	}

	/**
	 * The progress monitor associated with the fetch operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 */
	public FetchCommand setProgressMonitor(ProgressMonitor monitor) {
		checkCallable();
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Get list of {@code RefSpec}s
	 *
	 * @return the ref specs
	 */
	public List<RefSpec> getRefSpecs() {
		return refSpecs;
	}

	/**
	 * The ref specs to be used in the fetch operation
	 *
	 * @param specs
	 *            String representation of {@code RefSpec}s
	 * @return {@code this}
	 * @since 4.9
	 */
	public FetchCommand setRefSpecs(String... specs) {
		return setRefSpecs(
				Arrays.stream(specs).map(RefSpec::new).collect(toList()));
	}

	/**
	 * The ref specs to be used in the fetch operation
	 *
	 * @param specs
	 *            one or multiple {@link org.eclipse.jgit.transport.RefSpec}s
	 * @return {@code this}
	 */
	public FetchCommand setRefSpecs(RefSpec... specs) {
		return setRefSpecs(Arrays.asList(specs));
	}

	/**
	 * The ref specs to be used in the fetch operation
	 *
	 * @param specs
	 *            list of {@link org.eclipse.jgit.transport.RefSpec}s
	 * @return {@code this}
	 */
	public FetchCommand setRefSpecs(List<RefSpec> specs) {
		checkCallable();
		this.refSpecs.clear();
		this.refSpecs.addAll(specs);
		return this;
	}

	/**
	 * Whether to do a dry run
	 *
	 * @return the dry run preference for the fetch operation
	 */
	public boolean isDryRun() {
		return dryRun;
	}

	/**
	 * Sets whether the fetch operation should be a dry run
	 *
	 * @param dryRun
	 *            whether to do a dry run
	 * @return {@code this}
	 */
	public FetchCommand setDryRun(boolean dryRun) {
		checkCallable();
		this.dryRun = dryRun;
		return this;
	}

	/**
	 * Get thin-pack preference
	 *
	 * @return the thin-pack preference for fetch operation
	 */
	public boolean isThin() {
		return thin;
	}

	/**
	 * Sets the thin-pack preference for fetch operation.
	 *
	 * Default setting is Transport.DEFAULT_FETCH_THIN
	 *
	 * @param thinPack
	 *            the thin-pack preference
	 * @return {@code this}
	 */
	public FetchCommand setThin(boolean thinPack) {
		checkCallable();
		this.thin = thinPack;
		return this;
	}

	/**
	 * Sets the specification of annotated tag behavior during fetch
	 *
	 * @param tagOpt
	 *            the {@link org.eclipse.jgit.transport.TagOpt}
	 * @return {@code this}
	 */
	public FetchCommand setTagOpt(TagOpt tagOpt) {
		checkCallable();
		this.tagOption = tagOpt;
		return this;
	}

	/**
	 * Set the initial branch
	 *
	 * @param branch
	 *            the initial branch to check out when cloning the repository.
	 *            Can be specified as ref name (<code>refs/heads/master</code>),
	 *            branch name (<code>master</code>) or tag name
	 *            (<code>v1.2.3</code>). The default is to use the branch
	 *            pointed to by the cloned repository's HEAD and can be
	 *            requested by passing {@code null} or <code>HEAD</code>.
	 * @return {@code this}
	 * @since 5.11
	 */
	public FetchCommand setInitialBranch(String branch) {
		this.initialBranch = branch;
		return this;
	}

	/**
	 * Register a progress callback.
	 *
	 * @param callback
	 *            the callback
	 * @return {@code this}
	 * @since 4.8
	 */
	public FetchCommand setCallback(Callback callback) {
		this.callback = callback;
		return this;
	}

	/**
	 * Whether fetch --force option is enabled
	 *
	 * @return whether refs affected by the fetch are updated forcefully
	 * @since 5.0
	 */
	public boolean isForceUpdate() {
		return this.isForceUpdate;
	}

	/**
	 * Set fetch --force option
	 *
	 * @param force
	 *            whether to update refs affected by the fetch forcefully
	 * @return this command
	 * @since 5.0
	 */
	public FetchCommand setForceUpdate(boolean force) {
		this.isForceUpdate = force;
		return this;
	}

	/**
	 * Limits fetching to the specified number of commits from the tip of each
	 * remote branch history.
	 *
	 * @param depth
	 *            the depth
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand setDepth(int depth) {
		if (depth < 1) {
			throw new IllegalArgumentException(JGitText.get().depthMustBeAt1);
		}
		this.depth = Integer.valueOf(depth);
		return this;
	}

	/**
	 * Deepens or shortens the history of a shallow repository to include all
	 * reachable commits after a specified time.
	 *
	 * @param shallowSince
	 *            the timestammp; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand setShallowSince(@NonNull OffsetDateTime shallowSince) {
		this.deepenSince = shallowSince.toInstant();
		return this;
	}

	/**
	 * Deepens or shortens the history of a shallow repository to include all
	 * reachable commits after a specified time.
	 *
	 * @param shallowSince
	 *            the timestammp; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand setShallowSince(@NonNull Instant shallowSince) {
		this.deepenSince = shallowSince;
		return this;
	}

	/**
	 * Deepens or shortens the history of a shallow repository to exclude
	 * commits reachable from a specified remote branch or tag.
	 *
	 * @param shallowExclude
	 *            the ref or commit; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand addShallowExclude(@NonNull String shallowExclude) {
		shallowExcludes.add(shallowExclude);
		return this;
	}

	/**
	 * Creates a shallow clone with a history, excluding commits reachable from
	 * a specified remote branch or tag.
	 *
	 * @param shallowExclude
	 *            the commit; must not be {@code null}
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand addShallowExclude(@NonNull ObjectId shallowExclude) {
		shallowExcludes.add(shallowExclude.name());
		return this;
	}

	/**
	 * If the source repository is complete, converts a shallow repository to a
	 * complete one, removing all the limitations imposed by shallow
	 * repositories.
	 *
	 * If the source repository is shallow, fetches as much as possible so that
	 * the current repository has the same history as the source repository.
	 *
	 * @param unshallow
	 *            whether to unshallow or not
	 * @return {@code this}
	 *
	 * @since 6.3
	 */
	public FetchCommand setUnshallow(boolean unshallow) {
		this.unshallow = unshallow;
		return this;
	}

	void setShallowExcludes(List<String> shallowExcludes) {
		this.shallowExcludes = shallowExcludes;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 8644
Content-Disposition: inline; filename="GarbageCollectCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f6935e1c672079379dcb83a13bfc77316e9a3b48"

/*
 * Copyright (C) 2012, Matthias Sohn <matthias.sohn@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.text.ParseException;
import java.time.Instant;
import java.util.Date;
import java.util.Properties;
import java.util.concurrent.ExecutionException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.internal.storage.dfs.DfsGarbageCollector;
import org.eclipse.jgit.internal.storage.dfs.DfsRepository;
import org.eclipse.jgit.internal.storage.file.FileRepository;
import org.eclipse.jgit.internal.storage.file.GC;
import org.eclipse.jgit.internal.storage.file.GC.RepoStatistics;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.storage.pack.PackConfig;

/**
 * A class used to execute a {@code gc} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @since 2.2
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-gc.html"
 *      >Git documentation about gc</a>
 */
public class GarbageCollectCommand extends GitCommand<Properties> {
	/**
	 * Default value of maximum delta chain depth during aggressive garbage
	 * collection: {@value}
	 *
	 * @since 3.6
	 */
	public static final int DEFAULT_GC_AGGRESSIVE_DEPTH = 250;

	/**
	 * Default window size during packing during aggressive garbage collection:
	 * * {@value}
	 *
	 * @since 3.6
	 */
	public static final int DEFAULT_GC_AGGRESSIVE_WINDOW = 250;

	private ProgressMonitor monitor;

	private Instant expire;

	private PackConfig pconfig;

	private Boolean packKeptObjects;

	/**
	 * Constructor for GarbageCollectCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected GarbageCollectCommand(Repository repo) {
		super(repo);
		pconfig = new PackConfig(repo);
	}

	/**
	 * Set progress monitor
	 *
	 * @param monitor
	 *            a progress monitor
	 * @return this instance
	 */
	public GarbageCollectCommand setProgressMonitor(ProgressMonitor monitor) {
		this.monitor = monitor;
		return this;
	}

	/**
	 * During gc() or prune() each unreferenced, loose object which has been
	 * created or modified after <code>expire</code> will not be pruned. Only
	 * older objects may be pruned. If set to null then every object is a
	 * candidate for pruning. Use {@link org.eclipse.jgit.util.GitDateParser} to
	 * parse time formats used by git gc.
	 *
	 * @param expire
	 *            minimal age of objects to be pruned.
	 * @return this instance
	 * @deprecated use {@link #setExpire(Instant)} instead
	 */
	@Deprecated(since = "7.2")
	public GarbageCollectCommand setExpire(Date expire) {
		if (expire != null) {
			this.expire = expire.toInstant();
		}
		return this;
	}

	/**
	 * During gc() or prune() each unreferenced, loose object which has been
	 * created or modified after <code>expire</code> will not be pruned. Only
	 * older objects may be pruned. If set to null then every object is a
	 * candidate for pruning. Use {@link org.eclipse.jgit.util.GitTimeParser} to
	 * parse time formats used by git gc.
	 *
	 * @param expire
	 *            minimal age of objects to be pruned.
	 * @return this instance
	 * @since 7.2
	 */
	public GarbageCollectCommand setExpire(Instant expire) {
		this.expire = expire;
		return this;
	}

	/**
	 * Whether to use aggressive mode or not. If set to true JGit behaves more
	 * similar to native git's "git gc --aggressive". If set to
	 * <code>true</code> compressed objects found in old packs are not reused
	 * but every object is compressed again. Configuration variables pack.window
	 * and pack.depth are set to 250 for this GC.
	 *
	 * @since 3.6
	 * @param aggressive
	 *            whether to turn on or off aggressive mode
	 * @return this instance
	 */
	public GarbageCollectCommand setAggressive(boolean aggressive) {
		if (aggressive) {
			StoredConfig repoConfig = repo.getConfig();
			pconfig.setDeltaSearchWindowSize(repoConfig.getInt(
					ConfigConstants.CONFIG_GC_SECTION,
					ConfigConstants.CONFIG_KEY_AGGRESSIVE_WINDOW,
					DEFAULT_GC_AGGRESSIVE_WINDOW));
			pconfig.setMaxDeltaDepth(repoConfig.getInt(
					ConfigConstants.CONFIG_GC_SECTION,
					ConfigConstants.CONFIG_KEY_AGGRESSIVE_DEPTH,
					DEFAULT_GC_AGGRESSIVE_DEPTH));
			pconfig.setReuseObjects(false);
		} else
			pconfig = new PackConfig(repo);
		return this;
	}

	/**
	 * Whether to include objects in `.keep` packs when repacking.
	 *
	 * @param packKeptObjects
	 *            whether to include objects in `.keep` files when repacking.
	 * @return this instance
	 * @since 5.13.3
	 */
	public GarbageCollectCommand setPackKeptObjects(boolean packKeptObjects) {
		this.packKeptObjects = Boolean.valueOf(packKeptObjects);
		return this;
	}

	/**
	 * Whether to preserve old pack files instead of deleting them.
	 *
	 * @since 4.7
	 * @param preserveOldPacks
	 *            whether to preserve old pack files
	 * @return this instance
	 */
	public GarbageCollectCommand setPreserveOldPacks(boolean preserveOldPacks) {
		if (pconfig == null)
			pconfig = new PackConfig(repo);

		pconfig.setPreserveOldPacks(preserveOldPacks);
		return this;
	}

	/**
	 * Whether to prune preserved pack files in the preserved directory.
	 *
	 * @since 4.7
	 * @param prunePreserved
	 *            whether to prune preserved pack files
	 * @return this instance
	 */
	public GarbageCollectCommand setPrunePreserved(boolean prunePreserved) {
		if (pconfig == null)
			pconfig = new PackConfig(repo);

		pconfig.setPrunePreserved(prunePreserved);
		return this;
	}

	@Override
	public Properties call() throws GitAPIException {
		checkCallable();

		try {
			if (repo instanceof FileRepository) {
				GC gc = new GC((FileRepository) repo);
				gc.setPackConfig(pconfig);
				gc.setProgressMonitor(monitor);
				if (this.expire != null)
					gc.setExpire(expire);
				if (this.packKeptObjects != null) {
					gc.setPackKeptObjects(packKeptObjects.booleanValue());
				}
				try {
					gc.gc().get();
					return toProperties(gc.getStatistics());
				} catch (ParseException | InterruptedException
						| ExecutionException e) {
					throw new JGitInternalException(JGitText.get().gcFailed, e);
				}
			} else if (repo instanceof DfsRepository) {
				DfsGarbageCollector gc =
					new DfsGarbageCollector((DfsRepository) repo);
				gc.setPackConfig(pconfig);
				gc.pack(monitor);
				return new Properties();
			} else {
				throw new UnsupportedOperationException(MessageFormat.format(
						JGitText.get().unsupportedGC,
						repo.getClass().toString()));
			}
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().gcFailed, e);
		}
	}

	/**
	 * Computes and returns the repository statistics.
	 *
	 * @return the repository statistics
	 * @throws org.eclipse.jgit.api.errors.GitAPIException
	 *             thrown if the repository statistics cannot be computed
	 * @since 3.0
	 */
	public Properties getStatistics() throws GitAPIException {
		try {
			if (repo instanceof FileRepository) {
				GC gc = new GC((FileRepository) repo);
				return toProperties(gc.getStatistics());
			}
			return new Properties();
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().couldNotGetRepoStatistics, e);
		}
	}

	@SuppressWarnings("boxing")
	private static Properties toProperties(RepoStatistics stats) {
		Properties p = new Properties();
		p.put("numberOfBitmaps", stats.numberOfBitmaps); //$NON-NLS-1$
		p.put("numberOfLooseObjects", stats.numberOfLooseObjects); //$NON-NLS-1$
		p.put("numberOfLooseRefs", stats.numberOfLooseRefs); //$NON-NLS-1$
		p.put("numberOfPackedObjects", stats.numberOfPackedObjects); //$NON-NLS-1$
		p.put("numberOfPackedRefs", stats.numberOfPackedRefs); //$NON-NLS-1$
		p.put("numberOfPackFiles", stats.numberOfPackFiles); //$NON-NLS-1$
		p.put("sizeOfLooseObjects", stats.sizeOfLooseObjects); //$NON-NLS-1$
		p.put("sizeOfPackedObjects", stats.sizeOfPackedObjects); //$NON-NLS-1$
		return p;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 24206
Content-Disposition: inline; filename="Git.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "5bc035a46af60ebf3b130b1e7874486bdfd71490"

/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
 * Copyright (C) 2010, 2021 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static java.util.Objects.requireNonNull;

import java.io.File;
import java.io.IOException;

import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryBuilder;
import org.eclipse.jgit.lib.RepositoryCache;
import org.eclipse.jgit.lib.internal.WorkQueue;
import org.eclipse.jgit.nls.NLS;
import org.eclipse.jgit.util.FS;

/**
 * Offers a "GitPorcelain"-like API to interact with a git repository.
 * <p>
 * The GitPorcelain commands are described in the <a href=
 * "http://www.kernel.org/pub/software/scm/git/docs/git.html#_high_level_commands_porcelain"
 * >Git Documentation</a>.
 * <p>
 * This class only offers methods to construct so-called command classes. Each
 * GitPorcelain command is represented by one command class.<br>
 * Example: this class offers a {@code commit()} method returning an instance of
 * the {@code CommitCommand} class. The {@code CommitCommand} class has setters
 * for all the arguments and options. The {@code CommitCommand} class also has a
 * {@code call} method to actually execute the commit. The following code show's
 * how to do a simple commit:
 *
 * <pre>
 * Git git = new Git(myRepo);
 * git.commit().setMessage(&quot;Fix393&quot;).setAuthor(developerIdent).call();
 * </pre>
 *
 * All mandatory parameters for commands have to be specified in the methods of
 * this class, the optional parameters have to be specified by the
 * setter-methods of the Command class.
 * <p>
 * This class is intended to be used internally (e.g. by JGit tests) or by
 * external components (EGit, third-party tools) when they need exactly the
 * functionality of a GitPorcelain command. There are use-cases where this class
 * is not optimal and where you should use the more low-level JGit classes. The
 * methods in this class may for example offer too much functionality or they
 * offer the functionality with the wrong arguments.
 */
public class Git implements AutoCloseable {
	/** The git repository this class is interacting with */
	private final Repository repo;

	private final boolean closeRepo;

	/**
	 * Open repository
	 *
	 * @param dir
	 *            the repository to open. May be either the GIT_DIR, or the
	 *            working tree directory that contains {@code .git}.
	 * @return a {@link org.eclipse.jgit.api.Git} object for the existing git
	 *         repository
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 */
	public static Git open(File dir) throws IOException {
		return open(dir, FS.DETECTED);
	}

	/**
	 * Open repository
	 *
	 * @param dir
	 *            the repository to open. May be either the GIT_DIR, or the
	 *            working tree directory that contains {@code .git}.
	 * @param fs
	 *            filesystem abstraction to use when accessing the repository.
	 * @return a {@link org.eclipse.jgit.api.Git} object for the existing git
	 *         repository. Closing this instance will close the repo.
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 */
	public static Git open(File dir, FS fs) throws IOException {
		RepositoryCache.FileKey key;

		key = RepositoryCache.FileKey.lenient(dir, fs);
		Repository db = new RepositoryBuilder().setFS(fs).setGitDir(key.getFile())
				.setMustExist(true).build();
		return new Git(db, true);
	}

	/**
	 * Wrap repository
	 *
	 * @param repo
	 *            the git repository this class is interacting with;
	 *            {@code null} is not allowed.
	 * @return a {@link org.eclipse.jgit.api.Git} object for the existing git
	 *         repository. The caller is responsible for closing the repository;
	 *         {@link #close()} on this instance does not close the repo.
	 */
	public static Git wrap(Repository repo) {
		return new Git(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Free resources associated with this instance.
	 * <p>
	 * If the repository was opened by a static factory method in this class,
	 * then this method calls {@link Repository#close()} on the underlying
	 * repository instance. (Whether this actually releases underlying
	 * resources, such as file handles, may vary; see {@link Repository} for
	 * more details.)
	 * <p>
	 * If the repository was created by a caller and passed into
	 * {@link #Git(Repository)} or a static factory method in this class, then
	 * this method does not call close on the underlying repository.
	 * <p>
	 * In all cases, after calling this method you should not use this
	 * {@link Git} instance anymore.
	 *
	 * @since 3.2
	 */
	@Override
	public void close() {
		if (closeRepo)
			repo.close();
	}

	/**
	 * Return a command object to execute a {@code clone} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-clone.html"
	 *      >Git documentation about clone</a>
	 * @return a {@link org.eclipse.jgit.api.CloneCommand} used to collect all
	 *         optional parameters and to finally execute the {@code clone}
	 *         command
	 */
	public static CloneCommand cloneRepository() {
		return new CloneCommand();
	}

	/**
	 * Return a command to list remote branches/tags without a local repository.
	 *
	 * @return a {@link org.eclipse.jgit.api.LsRemoteCommand}
	 * @since 3.1
	 */
	public static LsRemoteCommand lsRemoteRepository() {
		return new LsRemoteCommand(null);
	}

	/**
	 * Return a command object to execute a {@code init} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-init.html" >Git
	 *      documentation about init</a>
	 * @return a {@link org.eclipse.jgit.api.InitCommand} used to collect all
	 *         optional parameters and to finally execute the {@code init}
	 *         command
	 */
	public static InitCommand init() {
		return new InitCommand();
	}

	/**
	 * Shutdown JGit and release resources it holds like NLS and thread pools
	 * @since 5.8
	 */
	public static void shutdown() {
		WorkQueue.getExecutor().shutdownNow();
		NLS.clear();
	}

	/**
	 * Construct a new {@link org.eclipse.jgit.api.Git} object which can
	 * interact with the specified git repository.
	 * <p>
	 * All command classes returned by methods of this class will always
	 * interact with this git repository.
	 * <p>
	 * The caller is responsible for closing the repository; {@link #close()} on
	 * this instance does not close the repo.
	 *
	 * @param repo
	 *            the git repository this class is interacting with;
	 *            {@code null} is not allowed.
	 */
	public Git(Repository repo) {
		this(repo, false);
	}

	Git(Repository repo, boolean closeRepo) {
		this.repo = requireNonNull(repo);
		this.closeRepo = closeRepo;
	}

	/**
	 * Return a command object to execute a {@code Commit} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-commit.html"
	 *      >Git documentation about Commit</a>
	 * @return a {@link org.eclipse.jgit.api.CommitCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Commit}
	 *         command
	 */
	public CommitCommand commit() {
		return new CommitCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Log} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-log.html" >Git
	 *      documentation about Log</a>
	 * @return a {@link org.eclipse.jgit.api.LogCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Log}
	 *         command
	 */
	public LogCommand log() {
		return new LogCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Merge} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-merge.html"
	 *      >Git documentation about Merge</a>
	 * @return a {@link org.eclipse.jgit.api.MergeCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Merge}
	 *         command
	 */
	public MergeCommand merge() {
		return new MergeCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Pull} command
	 *
	 * @return a {@link org.eclipse.jgit.api.PullCommand}
	 */
	public PullCommand pull() {
		return new PullCommand(repo);
	}

	/**
	 * Return a command object used to create branches
	 *
	 * @return a {@link org.eclipse.jgit.api.CreateBranchCommand}
	 */
	public CreateBranchCommand branchCreate() {
		return new CreateBranchCommand(repo);
	}

	/**
	 * Return a command object used to delete branches
	 *
	 * @return a {@link org.eclipse.jgit.api.DeleteBranchCommand}
	 */
	public DeleteBranchCommand branchDelete() {
		return new DeleteBranchCommand(repo);
	}

	/**
	 * Return a command object used to list branches
	 *
	 * @return a {@link org.eclipse.jgit.api.ListBranchCommand}
	 */
	public ListBranchCommand branchList() {
		return new ListBranchCommand(repo);
	}

	/**
	 *
	 * Return a command object used to list tags
	 *
	 * @return a {@link org.eclipse.jgit.api.ListTagCommand}
	 */
	public ListTagCommand tagList() {
		return new ListTagCommand(repo);
	}

	/**
	 * Return a command object used to rename branches
	 *
	 * @return a {@link org.eclipse.jgit.api.RenameBranchCommand}
	 */
	public RenameBranchCommand branchRename() {
		return new RenameBranchCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Add} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-add.html" >Git
	 *      documentation about Add</a>
	 * @return a {@link org.eclipse.jgit.api.AddCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Add}
	 *         command
	 */
	public AddCommand add() {
		return new AddCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Tag} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-tag.html" >Git
	 *      documentation about Tag</a>
	 * @return a {@link org.eclipse.jgit.api.TagCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Tag}
	 *         command
	 */
	public TagCommand tag() {
		return new TagCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Fetch} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-fetch.html"
	 *      >Git documentation about Fetch</a>
	 * @return a {@link org.eclipse.jgit.api.FetchCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Fetch}
	 *         command
	 */
	public FetchCommand fetch() {
		return new FetchCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Push} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-push.html" >Git
	 *      documentation about Push</a>
	 * @return a {@link org.eclipse.jgit.api.PushCommand} used to collect all
	 *         optional parameters and to finally execute the {@code Push}
	 *         command
	 */
	public PushCommand push() {
		return new PushCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code cherry-pick} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-cherry-pick.html"
	 *      >Git documentation about cherry-pick</a>
	 * @return a {@link org.eclipse.jgit.api.CherryPickCommand} used to collect
	 *         all optional parameters and to finally execute the
	 *         {@code cherry-pick} command
	 */
	public CherryPickCommand cherryPick() {
		return new CherryPickCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code revert} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-revert.html"
	 *      >Git documentation about reverting changes</a>
	 * @return a {@link org.eclipse.jgit.api.RevertCommand} used to collect all
	 *         optional parameters and to finally execute the
	 *         {@code cherry-pick} command
	 */
	public RevertCommand revert() {
		return new RevertCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code Rebase} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-rebase.html"
	 *      >Git documentation about rebase</a>
	 * @return a {@link org.eclipse.jgit.api.RebaseCommand} used to collect all
	 *         optional parameters and to finally execute the {@code rebase}
	 *         command
	 */
	public RebaseCommand rebase() {
		return new RebaseCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code rm} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-rm.html" >Git
	 *      documentation about rm</a>
	 * @return a {@link org.eclipse.jgit.api.RmCommand} used to collect all
	 *         optional parameters and to finally execute the {@code rm} command
	 */
	public RmCommand rm() {
		return new RmCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code checkout} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-checkout.html"
	 *      >Git documentation about checkout</a>
	 * @return a {@link org.eclipse.jgit.api.CheckoutCommand} used to collect
	 *         all optional parameters and to finally execute the
	 *         {@code checkout} command
	 */
	public CheckoutCommand checkout() {
		return new CheckoutCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code reset} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-reset.html"
	 *      >Git documentation about reset</a>
	 * @return a {@link org.eclipse.jgit.api.ResetCommand} used to collect all
	 *         optional parameters and to finally execute the {@code reset}
	 *         command
	 */
	public ResetCommand reset() {
		return new ResetCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code status} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-status.html"
	 *      >Git documentation about status</a>
	 * @return a {@link org.eclipse.jgit.api.StatusCommand} used to collect all
	 *         optional parameters and to finally execute the {@code status}
	 *         command
	 */
	public StatusCommand status() {
		return new StatusCommand(repo);
	}

	/**
	 * Return a command to create an archive from a tree
	 *
	 * @return a {@link org.eclipse.jgit.api.ArchiveCommand}
	 * @since 3.1
	 */
	public ArchiveCommand archive() {
		return new ArchiveCommand(repo);
	}

	/**
	 * Return a command to add notes to an object
	 *
	 * @return a {@link org.eclipse.jgit.api.AddNoteCommand}
	 */
	public AddNoteCommand notesAdd() {
		return new AddNoteCommand(repo);
	}

	/**
	 * Return a command to remove notes on an object
	 *
	 * @return a {@link org.eclipse.jgit.api.RemoveNoteCommand}
	 */
	public RemoveNoteCommand notesRemove() {
		return new RemoveNoteCommand(repo);
	}

	/**
	 * Return a command to list all notes
	 *
	 * @return a {@link org.eclipse.jgit.api.ListNotesCommand}
	 */
	public ListNotesCommand notesList() {
		return new ListNotesCommand(repo);
	}

	/**
	 * Return a command to show notes on an object
	 *
	 * @return a {@link org.eclipse.jgit.api.ShowNoteCommand}
	 */
	public ShowNoteCommand notesShow() {
		return new ShowNoteCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code ls-remote} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-ls-remote.html"
	 *      >Git documentation about ls-remote</a>
	 * @return a {@link org.eclipse.jgit.api.LsRemoteCommand} used to collect
	 *         all optional parameters and to finally execute the {@code status}
	 *         command
	 */
	public LsRemoteCommand lsRemote() {
		return new LsRemoteCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code clean} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-clean.html"
	 *      >Git documentation about Clean</a>
	 * @return a {@link org.eclipse.jgit.api.CleanCommand} used to collect all
	 *         optional parameters and to finally execute the {@code clean}
	 *         command
	 */
	public CleanCommand clean() {
		return new CleanCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code blame} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-blame.html"
	 *      >Git documentation about Blame</a>
	 * @return a {@link org.eclipse.jgit.api.BlameCommand} used to collect all
	 *         optional parameters and to finally execute the {@code blame}
	 *         command
	 */
	public BlameCommand blame() {
		return new BlameCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code reflog} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-reflog.html"
	 *      >Git documentation about reflog</a>
	 * @return a {@link org.eclipse.jgit.api.ReflogCommand} used to collect all
	 *         optional parameters and to finally execute the {@code reflog}
	 *         command
	 */
	public ReflogCommand reflog() {
		return new ReflogCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code diff} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-diff.html" >Git
	 *      documentation about diff</a>
	 * @return a {@link org.eclipse.jgit.api.DiffCommand} used to collect all
	 *         optional parameters and to finally execute the {@code diff}
	 *         command
	 */
	public DiffCommand diff() {
		return new DiffCommand(repo);
	}

	/**
	 * Return a command object used to delete tags
	 *
	 * @return a {@link org.eclipse.jgit.api.DeleteTagCommand}
	 */
	public DeleteTagCommand tagDelete() {
		return new DeleteTagCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code submodule add} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleAddCommand} used to add a
	 *         new submodule to a parent repository
	 */
	public SubmoduleAddCommand submoduleAdd() {
		return new SubmoduleAddCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code submodule init} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleInitCommand} used to
	 *         initialize the repository's config with settings from the
	 *         .gitmodules file in the working tree
	 */
	public SubmoduleInitCommand submoduleInit() {
		return new SubmoduleInitCommand(repo);
	}

	/**
	 * Returns a command object to execute a {@code submodule deinit} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleDeinitCommand} used to
	 *         remove a submodule's working tree manifestation
	 * @since 4.10
	 */
	public SubmoduleDeinitCommand submoduleDeinit() {
		return new SubmoduleDeinitCommand(repo);
	}

	/**
	 * Returns a command object to execute a {@code submodule status} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleStatusCommand} used to
	 *         report the status of a repository's configured submodules
	 */
	public SubmoduleStatusCommand submoduleStatus() {
		return new SubmoduleStatusCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code submodule sync} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleSyncCommand} used to
	 *         update the URL of a submodule from the parent repository's
	 *         .gitmodules file
	 */
	public SubmoduleSyncCommand submoduleSync() {
		return new SubmoduleSyncCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code submodule update} command
	 *
	 * @return a {@link org.eclipse.jgit.api.SubmoduleUpdateCommand} used to
	 *         update the submodules in a repository to the configured revision
	 */
	public SubmoduleUpdateCommand submoduleUpdate() {
		return new SubmoduleUpdateCommand(repo);
	}

	/**
	 * Return a command object used to list stashed commits
	 *
	 * @return a {@link org.eclipse.jgit.api.StashListCommand}
	 */
	public StashListCommand stashList() {
		return new StashListCommand(repo);
	}

	/**
	 * Return a command object used to create a stashed commit
	 *
	 * @return a {@link org.eclipse.jgit.api.StashCreateCommand}
	 * @since 2.0
	 */
	public StashCreateCommand stashCreate() {
		return new StashCreateCommand(repo);
	}

	/**
	 * Returs a command object used to apply a stashed commit
	 *
	 * @return a {@link org.eclipse.jgit.api.StashApplyCommand}
	 * @since 2.0
	 */
	public StashApplyCommand stashApply() {
		return new StashApplyCommand(repo);
	}

	/**
	 * Return a command object used to drop a stashed commit
	 *
	 * @return a {@link org.eclipse.jgit.api.StashDropCommand}
	 * @since 2.0
	 */
	public StashDropCommand stashDrop() {
		return new StashDropCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code apply} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-apply.html"
	 *      >Git documentation about apply</a>
	 * @return a {@link org.eclipse.jgit.api.ApplyCommand} used to collect all
	 *         optional parameters and to finally execute the {@code apply}
	 *         command
	 * @since 2.0
	 */
	public ApplyCommand apply() {
		return new ApplyCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code gc} command
	 *
	 * @see <a href=
	 *      "http://www.kernel.org/pub/software/scm/git/docs/git-gc.html" >Git
	 *      documentation about gc</a>
	 * @return a {@link org.eclipse.jgit.api.GarbageCollectCommand} used to
	 *         collect all optional parameters and to finally execute the
	 *         {@code gc} command
	 * @since 2.2
	 */
	public GarbageCollectCommand gc() {
		return new GarbageCollectCommand(repo);
	}

	/**
	 * Return a command object to execute a {@code PackRefs} command
	 *
	 * @return a {@link org.eclipse.jgit.api.PackRefsCommand}
	 * @since 7.1
	 */
	public PackRefsCommand packRefs() {
		return new PackRefsCommand(repo);
	}

	/**
	 * Return a command object to find human-readable names of revisions.
	 *
	 * @return a {@link org.eclipse.jgit.api.NameRevCommand}.
	 * @since 3.0
	 */
	public NameRevCommand nameRev() {
		return new NameRevCommand(repo);
	}

	/**
	 * Return a command object to come up with a short name that describes a
	 * commit in terms of the nearest git tag.
	 *
	 * @return a {@link org.eclipse.jgit.api.DescribeCommand}.
	 * @since 3.2
	 */
	public DescribeCommand describe() {
		return new DescribeCommand(repo);
	}

	/**
	 * Return a command used to list the available remotes.
	 *
	 * @return a {@link org.eclipse.jgit.api.RemoteListCommand}
	 * @since 4.2
	 */
	public RemoteListCommand remoteList() {
		return new RemoteListCommand(repo);
	}

	/**
	 * Return a command used to add a new remote.
	 *
	 * @return a {@link org.eclipse.jgit.api.RemoteAddCommand}
	 * @since 4.2
	 */
	public RemoteAddCommand remoteAdd() {
		return new RemoteAddCommand(repo);
	}

	/**
	 * Return a command used to remove an existing remote.
	 *
	 * @return a {@link org.eclipse.jgit.api.RemoteRemoveCommand}
	 * @since 4.2
	 */
	public RemoteRemoveCommand remoteRemove() {
		return new RemoteRemoveCommand(repo);
	}

	/**
	 * Return a command used to change the URL of an existing remote.
	 *
	 * @return a {@link org.eclipse.jgit.api.RemoteSetUrlCommand}
	 * @since 4.2
	 */
	public RemoteSetUrlCommand remoteSetUrl() {
		return new RemoteSetUrlCommand(repo);
	}

	/**
	 * Return a command to verify signatures of tags or commits.
	 *
	 * @return a {@link VerifySignatureCommand}
	 * @since 5.11
	 */
	public VerifySignatureCommand verifySignature() {
		return new VerifySignatureCommand(repo);
	}

	/**
	 * Get repository
	 *
	 * @return the git repository this class is interacting with; see
	 *         {@link #close()} for notes on closing this repository.
	 */
	public Repository getRepository() {
		return repo;
	}

	@Override
	public String toString() {
		return "Git[" + repo + "]"; //$NON-NLS-1$//$NON-NLS-2$
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "ee7d75cf9580ce2e08922827fe6acd951e860691"

/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com> and
 * other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v1.0 which accompanies this
 * distribution, is reproduced below, and is available at
 * http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * - Neither the name of the Eclipse Foundation, Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package org.eclipse.jgit.api;

import java.text.MessageFormat;
import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicBoolean;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Repository;

/**
 * Common superclass of all commands in the package {@code org.eclipse.jgit.api}
 * <p>
 * This class ensures that all commands fulfill the
 * {@link java.util.concurrent.Callable} interface. It also has a property
 * {@link #repo} holding a reference to the git
 * {@link org.eclipse.jgit.lib.Repository} this command should work with.
 * <p>
 * Finally this class stores a state telling whether it is allowed to call
 * {@link #call()} on this instance. Instances of
 * {@link org.eclipse.jgit.api.GitCommand} can only be used for one single
 * successful call to {@link #call()}. Afterwards this instance may not be used
 * anymore to set/modify any properties or to call {@link #call()} again. This
 * is achieved by setting the {@link #callable} property to false after the
 * successful execution of {@link #call()} and to check the state (by calling
 * {@link #checkCallable()}) before setting of properties and inside
 * {@link #call()}.
 *
 * @param <T>
 *            the return type which is expected from {@link #call()}
 */
public abstract class GitCommand<T> implements Callable<T> {
	/** The repository this command is working with */
	final protected Repository repo;

	/**
	 * a state which tells whether it is allowed to call {@link #call()} on this
	 * instance.
	 */
	private AtomicBoolean callable = new AtomicBoolean(true);

	/**
	 * Creates a new command which interacts with a single repository
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository} this command
	 *            should interact with
	 */
	protected GitCommand(Repository repo) {
		this.repo = repo;
	}

	/**
	 * Get repository this command is working on
	 *
	 * @return the {@link org.eclipse.jgit.lib.Repository} this command is
	 *         interacting with
	 */
	public Repository getRepository() {
		return repo;
	}

	/**
	 * Set's the state which tells whether it is allowed to call {@link #call()}
	 * on this instance. {@link #checkCallable()} will throw an exception when
	 * called and this property is set to {@code false}
	 *
	 * @param callable
	 *            if <code>true</code> it is allowed to call {@link #call()} on
	 *            this instance.
	 */
	protected void setCallable(boolean callable) {
		this.callable.set(callable);
	}

	/**
	 * Checks that the property {@link #callable} is {@code true}. If not then
	 * an {@link java.lang.IllegalStateException} is thrown
	 *
	 * @throws java.lang.IllegalStateException
	 *             when this method is called and the property {@link #callable}
	 *             is {@code false}
	 */
	protected void checkCallable() {
		if (!callable.get())
			throw new IllegalStateException(MessageFormat.format(
					JGitText.get().commandWasCalledInTheWrongState
					, this.getClass().getName()));
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the command
	 */
	@Override
	public abstract T call() throws GitAPIException;
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "1da71aa6eb9c89ef55bee4605077d0e71bf42bf8"

/*
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.concurrent.Callable;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.internal.storage.file.FileRepository;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryBuilder;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.StringUtils;
import org.eclipse.jgit.util.SystemReader;

/**
 * Create an empty git repository or reinitalize an existing one
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-init.html"
 *      >Git documentation about init</a>
 */
public class InitCommand implements Callable<Git> {
	private File directory;

	private File gitDir;

	private boolean bare;

	private FS fs;

	private String initialBranch;

	private boolean relativePaths;

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Init} command.
	 *
	 * @return a {@code Git} instance that owns the {@code Repository} that it
	 *         wraps.
	 */
	@Override
	public Git call() throws GitAPIException {
		try {
			RepositoryBuilder builder = new RepositoryBuilder();
			if (bare)
				builder.setBare();
			if (fs != null) {
				builder.setFS(fs);
			}
			builder.readEnvironment();
			if (gitDir != null)
				builder.setGitDir(gitDir);
			else
				gitDir = builder.getGitDir();
			if (directory != null) {
				if (bare)
					builder.setGitDir(directory);
				else {
					builder.setWorkTree(directory);
					if (gitDir == null)
						builder.setGitDir(new File(directory, Constants.DOT_GIT));
				}
			} else if (builder.getGitDir() == null) {
				String dStr = SystemReader.getInstance()
						.getProperty("user.dir"); //$NON-NLS-1$
				if (dStr == null)
					dStr = "."; //$NON-NLS-1$
				File d = new File(dStr);
				if (!bare)
					d = new File(d, Constants.DOT_GIT);
				builder.setGitDir(d);
			} else {
				// directory was not set but gitDir was set
				if (!bare) {
					String dStr = SystemReader.getInstance().getProperty(
							"user.dir"); //$NON-NLS-1$
					if (dStr == null)
						dStr = "."; //$NON-NLS-1$
					builder.setWorkTree(new File(dStr));
				}
			}
			builder.setInitialBranch(StringUtils.isEmptyOrNull(initialBranch)
					? SystemReader.getInstance().getUserConfig().getString(
							ConfigConstants.CONFIG_INIT_SECTION, null,
							ConfigConstants.CONFIG_KEY_DEFAULT_BRANCH)
					: initialBranch);
			Repository repository = builder.build();
			if (!repository.getObjectDatabase().exists())
				if (repository instanceof FileRepository) {
					((FileRepository) repository).create(bare, relativePaths);
				} else {
					repository.create(bare);
				}
			return new Git(repository, true);
		} catch (IOException | ConfigInvalidException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * The optional directory associated with the init operation. If no
	 * directory is set, we'll use the current directory
	 *
	 * @param directory
	 *            the directory to init to
	 * @return this instance
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 */
	public InitCommand setDirectory(File directory)
			throws IllegalStateException {
		validateDirs(directory, gitDir, bare);
		this.directory = directory;
		return this;
	}

	/**
	 * Set the repository meta directory (.git)
	 *
	 * @param gitDir
	 *            the repository meta directory
	 * @return this instance
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 * @since 3.6
	 */
	public InitCommand setGitDir(File gitDir)
			throws IllegalStateException {
		validateDirs(directory, gitDir, bare);
		this.gitDir = gitDir;
		return this;
	}

	private static void validateDirs(File directory, File gitDir, boolean bare)
			throws IllegalStateException {
		if (directory != null) {
			if (bare) {
				if (gitDir != null && !gitDir.equals(directory))
					throw new IllegalStateException(MessageFormat.format(
							JGitText.get().initFailedBareRepoDifferentDirs,
							gitDir, directory));
			} else {
				if (gitDir != null && gitDir.equals(directory))
					throw new IllegalStateException(MessageFormat.format(
							JGitText.get().initFailedNonBareRepoSameDirs,
							gitDir, directory));
			}
		}
	}

	/**
	 * Set whether the repository is bare or not
	 *
	 * @param bare
	 *            whether the repository is bare or not
	 * @throws java.lang.IllegalStateException
	 *             if the combination of directory, gitDir and bare is illegal.
	 *             E.g. if for a non-bare repository directory and gitDir point
	 *             to the same directory of if for a bare repository both
	 *             directory and gitDir are specified
	 * @return this instance
	 */
	public InitCommand setBare(boolean bare) {
		validateDirs(directory, gitDir, bare);
		this.bare = bare;
		return this;
	}

	/**
	 * Set the file system abstraction to be used for repositories created by
	 * this command.
	 *
	 * @param fs
	 *            the abstraction.
	 * @return {@code this} (for chaining calls).
	 * @since 4.10
	 */
	public InitCommand setFs(FS fs) {
		this.fs = fs;
		return this;
	}

	/**
	 * Set the initial branch of the new repository. If not specified
	 * ({@code null} or empty), fall back to the default name (currently
	 * master).
	 *
	 * @param branch
	 *            initial branch name of the new repository
	 * @return {@code this}
	 * @throws InvalidRefNameException
	 *             if the branch name is not valid
	 *
	 * @since 5.11
	 */
	public InitCommand setInitialBranch(String branch)
			throws InvalidRefNameException {
		this.initialBranch = branch;
		return this;
	}

	/**
	 * * Set whether the repository shall use relative paths for GIT_DIR and
	 * GIT_WORK_TREE
	 *
	 * @param relativePaths
	 *            if true, use relative paths for GIT_DIR and GIT_WORK_TREE
	 * @return {@code this}
	 * @since 7.2
	 */
	public InitCommand setRelativeDirs(boolean relativePaths) {
		this.relativePaths = relativePaths;
		return this;
	}
}
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "e3c3c89bcba2c3be4c46da9e09d4e8eb4973db86"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com>
 * Copyright (C) 2014, Robin Stocker <robin@nibor.org> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.HEAD;
import static org.eclipse.jgit.lib.Constants.R_HEADS;
import static org.eclipse.jgit.lib.Constants.R_REMOTES;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.RevWalkUtils;

/**
 * Used to obtain a list of branches.
 * <p>
 * In case HEAD is detached (it points directly to a commit), it is also
 * returned in the results.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-branch.html"
 *      >Git documentation about Branch</a>
 */
public class ListBranchCommand extends GitCommand<List<Ref>> {
	private ListMode listMode;

	private String containsCommitish;

	/**
	 * The modes available for listing branches (corresponding to the -r and -a
	 * options)
	 */
	public enum ListMode {
		/**
		 * Corresponds to the -a option (all branches)
		 */
		ALL,
		/**
		 * Corresponds to the -r option (remote branches only)
		 */
		REMOTE;
	}

	/**
	 * Constructor for ListBranchCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected ListBranchCommand(Repository repo) {
		super(repo);
	}

	@Override
	public List<Ref> call() throws GitAPIException {
		checkCallable();
		List<Ref> resultRefs;
		try {
			Collection<Ref> refs = new ArrayList<>();

			// Also return HEAD if it's detached
			Ref head = repo.exactRef(HEAD);
			if (head != null && head.getLeaf().getName().equals(HEAD)) {
				refs.add(head);
			}

			if (listMode == null) {
				refs.addAll(repo.getRefDatabase().getRefsByPrefix(R_HEADS));
			} else if (listMode == ListMode.REMOTE) {
				refs.addAll(repo.getRefDatabase().getRefsByPrefix(R_REMOTES));
			} else {
				refs.addAll(repo.getRefDatabase().getRefsByPrefix(R_HEADS,
						R_REMOTES));
			}
			resultRefs = new ArrayList<>(filterRefs(refs));
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		Collections.sort(resultRefs,
				(Ref o1, Ref o2) -> o1.getName().compareTo(o2.getName()));
		setCallable(false);
		return resultRefs;
	}

	private Collection<Ref> filterRefs(Collection<Ref> refs)
			throws RefNotFoundException, IOException {
		if (containsCommitish == null)
			return refs;

		try (RevWalk walk = new RevWalk(repo)) {
			ObjectId resolved = repo.resolve(containsCommitish);
			if (resolved == null)
				throw new RefNotFoundException(MessageFormat.format(
						JGitText.get().refNotResolved, containsCommitish));

			RevCommit containsCommit = walk.parseCommit(resolved);
			return RevWalkUtils.findBranchesReachableFrom(containsCommit, walk,
					refs);
		}
	}

	/**
	 * Set the list mode
	 *
	 * @param listMode
	 *            optional: corresponds to the -r/-a options; by default, only
	 *            local branches will be listed
	 * @return this instance
	 */
	public ListBranchCommand setListMode(ListMode listMode) {
		checkCallable();
		this.listMode = listMode;
		return this;
	}

	/**
	 * If this is set, only the branches that contain the specified commit-ish
	 * as an ancestor are returned.
	 *
	 * @param containsCommitish
	 *            a commit ID or ref name
	 * @return this instance
	 * @since 3.4
	 */
	public ListBranchCommand setContains(String containsCommitish) {
		checkCallable();
		this.containsCommitish = containsCommitish;
		return this;
	}
}
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Content-Length: 2427
Content-Disposition: inline; filename="ListNotesCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "9eb52866dc51dd5dae2bb3cafece9b77cd2c6e3a"

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.Note;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * List object notes.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-notes.html"
 *      >Git documentation about Notes</a>
 */
public class ListNotesCommand extends GitCommand<List<Note>> {

	private String notesRef = Constants.R_NOTES_COMMITS;

	/**
	 * Constructor for ListNotesCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected ListNotesCommand(Repository repo) {
		super(repo);
	}

	@Override
	public List<Note> call() throws GitAPIException {
		checkCallable();
		List<Note> notes = new ArrayList<>();
		NoteMap map = NoteMap.newEmptyMap();
		try (RevWalk walk = new RevWalk(repo)) {
			Ref ref = repo.findRef(notesRef);
			// if we have a notes ref, use it
			if (ref != null) {
				RevCommit notesCommit = walk.parseCommit(ref.getObjectId());
				map = NoteMap.read(walk.getObjectReader(), notesCommit);
			}

			Iterator<Note> i = map.iterator();
			while (i.hasNext())
				notes.add(i.next());
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		return notes;
	}

	/**
	 * Set the {@code Ref} to read notes from
	 *
	 * @param notesRef
	 *            the name of the {@code Ref} to read notes from. Note, the
	 *            default value of
	 *            {@link org.eclipse.jgit.lib.Constants#R_NOTES_COMMITS} will be
	 *            used if nothing is set
	 * @return {@code this}
	 * @see Constants#R_NOTES_COMMITS
	 */
	public ListNotesCommand setNotesRef(String notesRef) {
		checkCallable();
		this.notesRef = notesRef;
		return this;
	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 2772
Content-Disposition: inline; filename="ListTagCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "9a4a822b59a561a51088757781570a360b57306c"

/*
 * Copyright (C) 2011, Ketan Padegaonkar <ketanpadegaonkar@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Used to obtain a list of tags.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-tag.html"
 *      >Git documentation about Tag</a>
 */
public class ListTagCommand extends GitCommand<List<Ref>> {

	private final RevWalk rw;
	private RevCommit commit;

	/**
	 * Constructor for ListTagCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected ListTagCommand(Repository repo) {
		super(repo);
		rw = new RevWalk(repo);
	}

	/**
	 * Only list tags which contain the specified commit.
	 *
	 * @param commit
	 *            the specified commit
	 * @return this command
	 * @throws IOException
	 *             if an IO error occurred
	 * @throws IncorrectObjectTypeException
	 *             if commit has an incorrect object type
	 * @throws MissingObjectException
	 *             if the commit is missing
	 *
	 * @since 6.6
	 */
	public ListTagCommand setContains(AnyObjectId commit)
			throws MissingObjectException, IncorrectObjectTypeException,
			IOException {
		checkCallable();
		this.commit = rw.parseCommit(commit);
		return this;
	}

	@Override
	public List<Ref> call() throws GitAPIException {
		checkCallable();
		List<Ref> tags;
		try {
			List<Ref> refList = repo.getRefDatabase()
					.getRefsByPrefix(Constants.R_TAGS);
			if (commit != null) {
				// if body is retained #getMergedInto needs to access data not
				// available in commit graph which is slower
				rw.setRetainBody(false);
				tags = rw.getMergedInto(commit, refList);
			} else {
				tags = new ArrayList<>(refList);
			}
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} finally {
			rw.close();
		}
		Collections.sort(tags,
				(Ref o1, Ref o2) -> o1.getName().compareTo(o2.getName()));
		setCallable(false);
		return tags;
	}

}
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Content-Length: 13190
Content-Disposition: inline; filename="LogCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "2a8d34ed6842671913adc4326dabdd03684e2c44"

/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.filter.AndRevFilter;
import org.eclipse.jgit.revwalk.filter.MaxCountRevFilter;
import org.eclipse.jgit.revwalk.filter.RevFilter;
import org.eclipse.jgit.revwalk.filter.SkipRevFilter;
import org.eclipse.jgit.treewalk.filter.AndTreeFilter;
import org.eclipse.jgit.treewalk.filter.PathFilter;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
import org.eclipse.jgit.treewalk.filter.TreeFilter;

/**
 * A class used to execute a {@code Log} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 * <p>
 * Examples (<code>git</code> is a {@link org.eclipse.jgit.api.Git} instance):
 * <p>
 * Get newest 10 commits, starting from the current branch:
 *
 * <pre>
 * ObjectId head = repository.resolve(Constants.HEAD);
 *
 * Iterable&lt;RevCommit&gt; commits = git.log().add(head).setMaxCount(10).call();
 * </pre>
 * <p>
 *
 * Get commits only for a specific file:
 *
 * <pre>
 * git.log().add(head).addPath(&quot;dir/filename.txt&quot;).call();
 * </pre>
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-log.html"
 *      >Git documentation about Log</a>
 */
public class LogCommand extends GitCommand<Iterable<RevCommit>> {
	private RevWalk walk;

	private boolean startSpecified = false;

	private RevFilter revFilter;

	private final List<PathFilter> pathFilters = new ArrayList<>();
	private final List<TreeFilter> excludeTreeFilters = new ArrayList<>();

	private int maxCount = -1;

	private int skip = -1;

	/**
	 * Constructor for LogCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected LogCommand(Repository repo) {
		super(repo);
		walk = new RevWalk(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Log} command with all the options and parameters
	 * collected by the setter methods (e.g. {@link #add(AnyObjectId)},
	 * {@link #not(AnyObjectId)}, ..) of this class. Each instance of this class
	 * should only be used for one invocation of the command. Don't call this
	 * method twice on an instance.
	 */
	@Override
	public Iterable<RevCommit> call() throws GitAPIException, NoHeadException {
		checkCallable();
		List<TreeFilter> filters = new ArrayList<>();
		if (!pathFilters.isEmpty()) {
			filters.add(AndTreeFilter.create(PathFilterGroup.create(pathFilters), TreeFilter.ANY_DIFF));
		}
		if (!excludeTreeFilters.isEmpty()) {
			for (TreeFilter f : excludeTreeFilters) {
				filters.add(AndTreeFilter.create(f, TreeFilter.ANY_DIFF));
			}
		}
		if (!filters.isEmpty()) {
			if (filters.size() == 1) {
				walk.setTreeFilter(filters.get(0));
			} else {
				walk.setTreeFilter(AndTreeFilter.create(filters));
			}
		}
		if (skip > -1 && maxCount > -1)
			walk.setRevFilter(AndRevFilter.create(SkipRevFilter.create(skip),
					MaxCountRevFilter.create(maxCount)));
		else if (skip > -1)
			walk.setRevFilter(SkipRevFilter.create(skip));
		else if (maxCount > -1)
			walk.setRevFilter(MaxCountRevFilter.create(maxCount));
		if (!startSpecified) {
			try {
				ObjectId headId = repo.resolve(Constants.HEAD);
				if (headId == null)
					throw new NoHeadException(
							JGitText.get().noHEADExistsAndNoExplicitStartingRevisionWasSpecified);
				add(headId);
			} catch (IOException e) {
				// all exceptions thrown by add() shouldn't occur and represent
				// severe low-level exception which are therefore wrapped
				throw new JGitInternalException(
						JGitText.get().anExceptionOccurredWhileTryingToAddTheIdOfHEAD,
						e);
			}
		}

		if (this.revFilter != null) {
			walk.setRevFilter(this.revFilter);
		}

		setCallable(false);
		return walk;
	}

	/**
	 * Mark a commit to start graph traversal from.
	 *
	 * @see RevWalk#markStart(RevCommit)
	 * @param start
	 *            the id of the commit to start from
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.MissingObjectException
	 *             the commit supplied is not available from the object
	 *             database. This usually indicates the supplied commit is
	 *             invalid, but the reference was constructed during an earlier
	 *             invocation to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws org.eclipse.jgit.errors.IncorrectObjectTypeException
	 *             the object was not parsed yet and it was discovered during
	 *             parsing that it is not actually a commit. This usually
	 *             indicates the caller supplied a non-commit SHA-1 to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}. Expect only
	 *             {@code IOException's} to be wrapped. Subclasses of
	 *             {@link java.io.IOException} (e.g.
	 *             {@link org.eclipse.jgit.errors.MissingObjectException}) are
	 *             typically not wrapped here but thrown as original exception
	 */
	public LogCommand add(AnyObjectId start) throws MissingObjectException,
			IncorrectObjectTypeException {
		return add(true, start);
	}

	/**
	 * Same as {@code --not start}, or {@code ^start}
	 *
	 * @param start
	 *            a {@link org.eclipse.jgit.lib.AnyObjectId}
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.MissingObjectException
	 *             the commit supplied is not available from the object
	 *             database. This usually indicates the supplied commit is
	 *             invalid, but the reference was constructed during an earlier
	 *             invocation to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws org.eclipse.jgit.errors.IncorrectObjectTypeException
	 *             the object was not parsed yet and it was discovered during
	 *             parsing that it is not actually a commit. This usually
	 *             indicates the caller supplied a non-commit SHA-1 to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}. Expect only
	 *             {@code IOException's} to be wrapped. Subclasses of
	 *             {@link java.io.IOException} (e.g.
	 *             {@link org.eclipse.jgit.errors.MissingObjectException}) are
	 *             typically not wrapped here but thrown as original exception
	 */
	public LogCommand not(AnyObjectId start) throws MissingObjectException,
			IncorrectObjectTypeException {
		return add(false, start);
	}

	/**
	 * Adds the range {@code since..until}
	 *
	 * @param since
	 *            a {@link org.eclipse.jgit.lib.AnyObjectId} object.
	 * @param until
	 *            a {@link org.eclipse.jgit.lib.AnyObjectId} object.
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.MissingObjectException
	 *             the commit supplied is not available from the object
	 *             database. This usually indicates the supplied commit is
	 *             invalid, but the reference was constructed during an earlier
	 *             invocation to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws org.eclipse.jgit.errors.IncorrectObjectTypeException
	 *             the object was not parsed yet and it was discovered during
	 *             parsing that it is not actually a commit. This usually
	 *             indicates the caller supplied a non-commit SHA-1 to
	 *             {@link org.eclipse.jgit.revwalk.RevWalk#lookupCommit(AnyObjectId)}.
	 * @throws JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}. Expect only
	 *             {@code IOException's} to be wrapped. Subclasses of
	 *             {@link java.io.IOException} (e.g.
	 *             {@link org.eclipse.jgit.errors.MissingObjectException}) are
	 *             typically not wrapped here but thrown as original exception
	 */
	public LogCommand addRange(AnyObjectId since, AnyObjectId until)
			throws MissingObjectException, IncorrectObjectTypeException {
		return not(since).add(until);
	}

	/**
	 * Add all refs as commits to start the graph traversal from.
	 *
	 * @see #add(AnyObjectId)
	 * @return {@code this}
	 * @throws java.io.IOException
	 *             the references could not be accessed
	 */
	public LogCommand all() throws IOException {
		for (Ref ref : getRepository().getRefDatabase().getRefs()) {
			if(!ref.isPeeled())
				ref = getRepository().getRefDatabase().peel(ref);

			ObjectId objectId = ref.getPeeledObjectId();
			if (objectId == null)
				objectId = ref.getObjectId();
			RevCommit commit = null;
			try {
				commit = walk.parseCommit(objectId);
			} catch (MissingObjectException | IncorrectObjectTypeException e) {
				// ignore as traversal starting point:
				// - the ref points to an object that does not exist
				// - the ref points to an object that is not a commit (e.g. a
				// tree or a blob)
			}
			if (commit != null)
				add(commit);
		}
		return this;
	}

	/**
	 * Show only commits that affect any of the specified paths. The path must
	 * either name a file or a directory exactly and use <code>/</code> (slash)
	 * as separator. Note that regex expressions or wildcards are not supported.
	 *
	 * @param path
	 *            a repository-relative path (with <code>/</code> as separator)
	 * @return {@code this}
	 */
	public LogCommand addPath(String path) {
		checkCallable();
		pathFilters.add(PathFilter.create(path));
		return this;
	}

	/**
	 * Show all commits that are not within any of the specified paths. The path
	 * must either name a file or a directory exactly and use <code>/</code>
	 * (slash) as separator. Note that regular expressions or wildcards are not
	 * yet supported. If a path is both added and excluded from the search, then
	 * the exclusion wins.
	 *
	 * @param path
	 *            a repository-relative path (with <code>/</code> as separator)
	 * @return {@code this}
	 * @since 5.6
	 */
	public LogCommand excludePath(String path) {
		checkCallable();
		excludeTreeFilters.add(PathFilter.create(path).negate());
		return this;
	}

	/**
	 * Skip the number of commits before starting to show the commit output.
	 *
	 * @param skip
	 *            the number of commits to skip
	 * @return {@code this}
	 */
	public LogCommand setSkip(int skip) {
		checkCallable();
		this.skip = skip;
		return this;
	}

	/**
	 * Limit the number of commits to output.
	 *
	 * @param maxCount
	 *            the limit
	 * @return {@code this}
	 */
	public LogCommand setMaxCount(int maxCount) {
		checkCallable();
		this.maxCount = maxCount;
		return this;
	}

	private LogCommand add(boolean include, AnyObjectId start)
			throws MissingObjectException, IncorrectObjectTypeException,
			JGitInternalException {
		checkCallable();
		try {
			if (include) {
				walk.markStart(walk.lookupCommit(start));
				startSpecified = true;
			} else
				walk.markUninteresting(walk.lookupCommit(start));
			return this;
		} catch (MissingObjectException | IncorrectObjectTypeException e) {
			throw e;
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().exceptionOccurredDuringAddingOfOptionToALogCommand
					, start), e);
		}
	}


	/**
	 * Set a filter for the <code>LogCommand</code>.
	 *
	 * @param aFilter
	 *            the filter that this instance of <code>LogCommand</code>
	 *            should use
	 * @return {@code this}
	 * @since 4.4
	 */
	public LogCommand setRevFilter(RevFilter aFilter) {
		checkCallable();
		this.revFilter = aFilter;
		return this;
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 6057
Content-Disposition: inline; filename="LsRemoteCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "c3415581ef96263705f3699683956c9051cfa5e4"

/*
 * Copyright (C) 2011, 2022 Christoph Brill <egore911@egore911.de> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.FetchConnection;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.Transport;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.jgit.transport.UrlConfig;
import org.eclipse.jgit.util.SystemReader;

/**
 * The ls-remote command
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-ls-remote.html"
 *      >Git documentation about ls-remote</a>
 */
public class LsRemoteCommand extends
		TransportCommand<LsRemoteCommand, Collection<Ref>> {

	private String remote = Constants.DEFAULT_REMOTE_NAME;

	private boolean heads;

	private boolean tags;

	private String uploadPack;

	/**
	 * Constructor for LsRemoteCommand
	 *
	 * @param repo
	 *            local repository or null for operation without local
	 *            repository
	 */
	public LsRemoteCommand(Repository repo) {
		super(repo);
	}

	/**
	 * The remote (uri or name) used for the fetch operation. If no remote is
	 * set, the default value of <code>Constants.DEFAULT_REMOTE_NAME</code> will
	 * be used.
	 *
	 * @see Constants#DEFAULT_REMOTE_NAME
	 * @param remote
	 *            a {@link java.lang.String} object.
	 * @return {@code this}
	 */
	public LsRemoteCommand setRemote(String remote) {
		checkCallable();
		this.remote = remote;
		return this;
	}

	/**
	 * Include refs/heads in references results
	 *
	 * @param heads
	 *            whether to include refs/heads
	 * @return {@code this}
	 */
	public LsRemoteCommand setHeads(boolean heads) {
		this.heads = heads;
		return this;
	}

	/**
	 * Include refs/tags in references results
	 *
	 * @param tags
	 *            whether to include tags
	 * @return {@code this}
	 */
	public LsRemoteCommand setTags(boolean tags) {
		this.tags = tags;
		return this;
	}

	/**
	 * The full path of git-upload-pack on the remote host
	 *
	 * @param uploadPack
	 *            the full path of executable providing the git-upload-pack
	 *            service on remote host
	 * @return {@code this}
	 */
	public LsRemoteCommand setUploadPack(String uploadPack) {
		this.uploadPack = uploadPack;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the {@code LsRemote} command with all the options and parameters
	 * collected by the setter methods (e.g. {@link #setHeads(boolean)}) of this
	 * class. Each instance of this class should only be used for one invocation
	 * of the command. Don't call this method twice on an instance.
	 */
	@Override
	public Collection<Ref> call() throws GitAPIException,
			InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		return execute().values();
	}

	/**
	 * Same as {@link #call()}, but return Map instead of Collection.
	 *
	 * @return a map from names to references in the remote repository
	 * @throws org.eclipse.jgit.api.errors.GitAPIException
	 *             or subclass thereof when an error occurs
	 * @throws org.eclipse.jgit.api.errors.InvalidRemoteException
	 *             when called with an invalid remote uri
	 * @throws org.eclipse.jgit.api.errors.TransportException
	 *             for errors that occurs during transport
	 * @since 3.5
	 */
	public Map<String, Ref> callAsMap() throws GitAPIException,
			InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		return Collections.unmodifiableMap(execute());
	}

	private Map<String, Ref> execute() throws GitAPIException,
			InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		checkCallable();

		try (Transport transport = repo != null
				? Transport.open(repo, remote)
				: Transport.open(new URIish(translate(remote)))) {
			transport.setOptionUploadPack(uploadPack);
			configure(transport);
			Collection<RefSpec> refSpecs = new ArrayList<>(1);
			if (tags)
				refSpecs.add(new RefSpec(
						"refs/tags/*:refs/remotes/origin/tags/*")); //$NON-NLS-1$
			if (heads)
				refSpecs.add(new RefSpec("refs/heads/*:refs/remotes/origin/*")); //$NON-NLS-1$
			Collection<Ref> refs;
			Map<String, Ref> refmap = new HashMap<>();
			try (FetchConnection fc = transport.openFetch(refSpecs)) {
				refs = fc.getRefs();
				if (refSpecs.isEmpty())
					for (Ref r : refs)
						refmap.put(r.getName(), r);
				else
					for (Ref r : refs)
						for (RefSpec rs : refSpecs)
							if (rs.matchSource(r)) {
								refmap.put(r.getName(), r);
								break;
							}
				return refmap;
			}
		} catch (URISyntaxException e) {
			throw new InvalidRemoteException(MessageFormat.format(
					JGitText.get().invalidRemote, remote), e);
		} catch (NotSupportedException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfLsRemoteCommand,
					e);
		} catch (IOException | ConfigInvalidException e) {
			throw new org.eclipse.jgit.api.errors.TransportException(
					e.getMessage(), e);
		}
	}

	private String translate(String uri)
			throws IOException, ConfigInvalidException {
		UrlConfig urls = new UrlConfig(
				SystemReader.getInstance().getUserConfig());
		return urls.replace(uri);
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 21344
Content-Disposition: inline; filename="MergeCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "7064f5a57a92e262e928f8f3a5dd1a5b870af5a0"

/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
 * Copyright (C) 2010, 2014, Stefan Lay <stefan.lay@sap.com>
 * Copyright (C) 2016, 2021 Laurent Delaigue <laurent.delaigue@obeo.fr> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.api.MergeResult.MergeStatus;
import org.eclipse.jgit.api.errors.CheckoutConflictException;
import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidMergeHeadsException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.CommitConfig;
import org.eclipse.jgit.lib.Config.ConfigEnum;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectIdRef;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Ref.Storage;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.ContentMergeStrategy;
import org.eclipse.jgit.merge.MergeConfig;
import org.eclipse.jgit.merge.MergeMessageFormatter;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.merge.Merger;
import org.eclipse.jgit.merge.ResolveMerger;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.merge.SquashMessageFormatter;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.RevWalkUtils;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.util.StringUtils;

/**
 * A class used to execute a {@code Merge} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-merge.html"
 *      >Git documentation about Merge</a>
 */
public class MergeCommand extends GitCommand<MergeResult> {

	private MergeStrategy mergeStrategy = MergeStrategy.RECURSIVE;

	private ContentMergeStrategy contentStrategy;

	private List<Ref> commits = new ArrayList<>();

	private Boolean squash;

	private FastForwardMode fastForwardMode;

	private String message;

	private boolean insertChangeId;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * Values for the "merge.conflictStyle" git config.
	 *
	 * @since 5.12
	 */
	public enum ConflictStyle {

		/** "merge" style: only ours/theirs. This is the default. */
		MERGE,

		/** "diff3" style: ours/base/theirs. */
		DIFF3
	}

	/**
	 * The modes available for fast forward merges corresponding to the
	 * <code>--ff</code>, <code>--no-ff</code> and <code>--ff-only</code>
	 * options under <code>branch.&lt;name&gt;.mergeoptions</code>.
	 */
	public enum FastForwardMode implements ConfigEnum {
		/**
		 * Corresponds to the default --ff option (for a fast forward update the
		 * branch pointer only).
		 */
		FF,
		/**
		 * Corresponds to the --no-ff option (create a merge commit even for a
		 * fast forward).
		 */
		NO_FF,
		/**
		 * Corresponds to the --ff-only option (abort unless the merge is a fast
		 * forward).
		 */
		FF_ONLY;

		@Override
		public String toConfigValue() {
			return "--" + name().toLowerCase(Locale.ROOT).replace('_', '-'); //$NON-NLS-1$
		}

		@Override
		public boolean matchConfigValue(String in) {
			if (StringUtils.isEmptyOrNull(in))
				return false;
			if (!in.startsWith("--")) //$NON-NLS-1$
				return false;
			return name().equalsIgnoreCase(in.substring(2).replace('-', '_'));
		}

		/**
		 * The modes available for fast forward merges corresponding to the
		 * options under <code>merge.ff</code>.
		 */
		public enum Merge {
			/**
			 * {@link FastForwardMode#FF}.
			 */
			TRUE,
			/**
			 * {@link FastForwardMode#NO_FF}.
			 */
			FALSE,
			/**
			 * {@link FastForwardMode#FF_ONLY}.
			 */
			ONLY;

			/**
			 * Map from <code>FastForwardMode</code> to
			 * <code>FastForwardMode.Merge</code>.
			 *
			 * @param ffMode
			 *            the <code>FastForwardMode</code> value to be mapped
			 * @return the mapped <code>FastForwardMode.Merge</code> value
			 */
			public static Merge valueOf(FastForwardMode ffMode) {
				switch (ffMode) {
				case NO_FF:
					return FALSE;
				case FF_ONLY:
					return ONLY;
				default:
					return TRUE;
				}
			}
		}

		/**
		 * Map from <code>FastForwardMode.Merge</code> to
		 * <code>FastForwardMode</code>.
		 *
		 * @param ffMode
		 *            the <code>FastForwardMode.Merge</code> value to be mapped
		 * @return the mapped <code>FastForwardMode</code> value
		 */
		public static FastForwardMode valueOf(FastForwardMode.Merge ffMode) {
			switch (ffMode) {
			case FALSE:
				return NO_FF;
			case ONLY:
				return FF_ONLY;
			default:
				return FF;
			}
		}
	}

	private Boolean commit;

	/**
	 * Constructor for MergeCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected MergeCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the {@code Merge} command with all the options and parameters
	 * collected by the setter methods (e.g. {@link #include(Ref)}) of this
	 * class. Each instance of this class should only be used for one invocation
	 * of the command. Don't call this method twice on an instance.
	 */
	@Override
	@SuppressWarnings("boxing")
	public MergeResult call() throws GitAPIException, NoHeadException,
			ConcurrentRefUpdateException, CheckoutConflictException,
			InvalidMergeHeadsException, WrongRepositoryStateException, NoMessageException {
		checkCallable();
		fallBackToConfiguration();
		checkParameters();

		DirCacheCheckout dco = null;
		try (RevWalk revWalk = new RevWalk(repo)) {
			Ref head = repo.exactRef(Constants.HEAD);
			if (head == null)
				throw new NoHeadException(
						JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
			StringBuilder refLogMessage = new StringBuilder("merge "); //$NON-NLS-1$

			// Check for FAST_FORWARD, ALREADY_UP_TO_DATE

			// we know for now there is only one commit
			Ref ref = commits.get(0);

			refLogMessage.append(ref.getName());

			// handle annotated tags
			ref = repo.getRefDatabase().peel(ref);
			ObjectId objectId = ref.getPeeledObjectId();
			if (objectId == null)
				objectId = ref.getObjectId();

			RevCommit srcCommit = revWalk.lookupCommit(objectId);

			ObjectId headId = head.getObjectId();
			if (headId == null) {
				revWalk.parseHeaders(srcCommit);
				dco = new DirCacheCheckout(repo,
						repo.lockDirCache(), srcCommit.getTree());
				dco.setFailOnConflict(true);
				dco.setProgressMonitor(monitor);
				dco.checkout();
				RefUpdate refUpdate = repo
						.updateRef(head.getTarget().getName());
				refUpdate.setNewObjectId(objectId);
				refUpdate.setExpectedOldObjectId(null);
				refUpdate.setRefLogMessage("initial pull", false); //$NON-NLS-1$
				if (refUpdate.update() != Result.NEW)
					throw new NoHeadException(
							JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
				setCallable(false);
				return new MergeResult(srcCommit, srcCommit, new ObjectId[] {
						null, srcCommit }, MergeStatus.FAST_FORWARD,
						mergeStrategy, null, null);
			}

			RevCommit headCommit = revWalk.lookupCommit(headId);

			if (revWalk.isMergedInto(srcCommit, headCommit)) {
				setCallable(false);
				return new MergeResult(headCommit, srcCommit, new ObjectId[] {
						headCommit, srcCommit },
						MergeStatus.ALREADY_UP_TO_DATE, mergeStrategy, null, null);
			} else if (revWalk.isMergedInto(headCommit, srcCommit)
					&& fastForwardMode != FastForwardMode.NO_FF) {
				// FAST_FORWARD detected: skip doing a real merge but only
				// update HEAD
				refLogMessage.append(": " + MergeStatus.FAST_FORWARD); //$NON-NLS-1$
				dco = new DirCacheCheckout(repo,
						headCommit.getTree(), repo.lockDirCache(),
						srcCommit.getTree());
				dco.setProgressMonitor(monitor);
				dco.setFailOnConflict(true);
				dco.checkout();
				String msg = null;
				ObjectId newHead, base = null;
				MergeStatus mergeStatus = null;
				if (!squash) {
					updateHead(refLogMessage, srcCommit, headId);
					newHead = base = srcCommit;
					mergeStatus = MergeStatus.FAST_FORWARD;
				} else {
					msg = JGitText.get().squashCommitNotUpdatingHEAD;
					newHead = base = headId;
					mergeStatus = MergeStatus.FAST_FORWARD_SQUASHED;
					List<RevCommit> squashedCommits = RevWalkUtils.find(
							revWalk, srcCommit, headCommit);
					String squashMessage = new SquashMessageFormatter().format(
							squashedCommits, head);
					repo.writeSquashCommitMsg(squashMessage);
				}
				setCallable(false);
				return new MergeResult(newHead, base, new ObjectId[] {
						headCommit, srcCommit }, mergeStatus, mergeStrategy,
						null, msg);
			} else {
				if (fastForwardMode == FastForwardMode.FF_ONLY) {
					return new MergeResult(headCommit, srcCommit,
							new ObjectId[] { headCommit, srcCommit },
							MergeStatus.ABORTED, mergeStrategy, null, null);
				}
				String mergeMessage = ""; //$NON-NLS-1$
				if (!squash) {
					if (message != null)
						mergeMessage = message;
					else
						mergeMessage = new MergeMessageFormatter().format(
							commits, head);
					repo.writeMergeCommitMsg(mergeMessage);
					repo.writeMergeHeads(Arrays.asList(ref.getObjectId()));
				} else {
					List<RevCommit> squashedCommits = RevWalkUtils.find(
							revWalk, srcCommit, headCommit);
					String squashMessage = new SquashMessageFormatter().format(
							squashedCommits, head);
					repo.writeSquashCommitMsg(squashMessage);
				}
				Merger merger = mergeStrategy.newMerger(repo);
				merger.setProgressMonitor(monitor);
				boolean noProblems;
				Map<String, org.eclipse.jgit.merge.MergeResult<?>> lowLevelResults = null;
				Map<String, MergeFailureReason> failingPaths = null;
				List<String> unmergedPaths = null;
				if (merger instanceof ResolveMerger) {
					ResolveMerger resolveMerger = (ResolveMerger) merger;
					resolveMerger.setContentMergeStrategy(contentStrategy);
					resolveMerger.setCommitNames(new String[] {
							"BASE", "HEAD", ref.getName() }); //$NON-NLS-1$ //$NON-NLS-2$
					resolveMerger.setWorkingTreeIterator(new FileTreeIterator(repo));
					noProblems = merger.merge(headCommit, srcCommit);
					lowLevelResults = resolveMerger
							.getMergeResults();
					failingPaths = resolveMerger.getFailingPaths();
					unmergedPaths = resolveMerger.getUnmergedPaths();
					if (!resolveMerger.getModifiedFiles().isEmpty()) {
						repo.fireEvent(new WorkingTreeModifiedEvent(
								resolveMerger.getModifiedFiles(), null));
					}
				} else
					noProblems = merger.merge(headCommit, srcCommit);
				refLogMessage.append(": Merge made by "); //$NON-NLS-1$
				if (!revWalk.isMergedInto(headCommit, srcCommit))
					refLogMessage.append(mergeStrategy.getName());
				else
					refLogMessage.append("recursive"); //$NON-NLS-1$
				refLogMessage.append('.');
				if (noProblems) {
					dco = new DirCacheCheckout(repo,
							headCommit.getTree(), repo.lockDirCache(),
							merger.getResultTreeId());
					dco.setFailOnConflict(true);
					dco.setProgressMonitor(monitor);
					dco.checkout();

					String msg = null;
					ObjectId newHeadId = null;
					MergeStatus mergeStatus = null;
					if (!commit && squash) {
						mergeStatus = MergeStatus.MERGED_SQUASHED_NOT_COMMITTED;
					}
					if (!commit && !squash) {
						mergeStatus = MergeStatus.MERGED_NOT_COMMITTED;
					}
					if (commit && !squash) {
						try (Git git = new Git(getRepository())) {
							newHeadId = git.commit()
									.setReflogComment(refLogMessage.toString())
									.setInsertChangeId(insertChangeId)
									.call().getId();
						}
						mergeStatus = MergeStatus.MERGED;
						getRepository().autoGC(monitor);
					}
					if (commit && squash) {
						msg = JGitText.get().squashCommitNotUpdatingHEAD;
						newHeadId = headCommit.getId();
						mergeStatus = MergeStatus.MERGED_SQUASHED;
					}
					return new MergeResult(newHeadId, null,
							new ObjectId[] { headCommit.getId(),
									srcCommit.getId() }, mergeStatus,
							mergeStrategy, null, msg);
				}
				if (failingPaths != null) {
					repo.writeMergeCommitMsg(null);
					repo.writeMergeHeads(null);
					return new MergeResult(null, merger.getBaseCommitId(),
							new ObjectId[] { headCommit.getId(),
									srcCommit.getId() },
							MergeStatus.FAILED, mergeStrategy, lowLevelResults,
							failingPaths, null);
				}
				CommitConfig cfg = repo.getConfig().get(CommitConfig.KEY);
				char commentChar = cfg.getCommentChar(message);
				String mergeMessageWithConflicts = new MergeMessageFormatter()
						.formatWithConflicts(mergeMessage, unmergedPaths,
								commentChar);
				repo.writeMergeCommitMsg(mergeMessageWithConflicts);
				return new MergeResult(null, merger.getBaseCommitId(),
						new ObjectId[] { headCommit.getId(),
								srcCommit.getId() },
						MergeStatus.CONFLICTING, mergeStrategy, lowLevelResults,
						null);
			}
		} catch (org.eclipse.jgit.errors.CheckoutConflictException e) {
			List<String> conflicts = (dco == null) ? Collections
					.<String> emptyList() : dco.getConflicts();
			throw new CheckoutConflictException(conflicts, e);
		} catch (IOException e) {
			throw new JGitInternalException(
					MessageFormat.format(
							JGitText.get().exceptionCaughtDuringExecutionOfMergeCommand,
							e), e);
		}
	}

	private void checkParameters() throws InvalidMergeHeadsException {
		if (squash.booleanValue() && fastForwardMode == FastForwardMode.NO_FF) {
			throw new JGitInternalException(
					JGitText.get().cannotCombineSquashWithNoff);
		}

		if (commits.size() != 1)
			throw new InvalidMergeHeadsException(
					commits.isEmpty() ? JGitText.get().noMergeHeadSpecified
							: MessageFormat.format(
									JGitText.get().mergeStrategyDoesNotSupportHeads,
									mergeStrategy.getName(),
									Integer.valueOf(commits.size())));
	}

	/**
	 * Use values from the configuration if they have not been explicitly
	 * defined via the setters
	 */
	private void fallBackToConfiguration() {
		MergeConfig config = MergeConfig.getConfigForCurrentBranch(repo);
		if (squash == null)
			squash = Boolean.valueOf(config.isSquash());
		if (commit == null)
			commit = Boolean.valueOf(config.isCommit());
		if (fastForwardMode == null)
			fastForwardMode = config.getFastForwardMode();
	}

	private void updateHead(StringBuilder refLogMessage, ObjectId newHeadId,
			ObjectId oldHeadID) throws IOException,
			ConcurrentRefUpdateException {
		RefUpdate refUpdate = repo.updateRef(Constants.HEAD);
		refUpdate.setNewObjectId(newHeadId);
		refUpdate.setRefLogMessage(refLogMessage.toString(), false);
		refUpdate.setExpectedOldObjectId(oldHeadID);
		Result rc = refUpdate.update();
		switch (rc) {
		case NEW:
		case FAST_FORWARD:
			return;
		case REJECTED:
		case LOCK_FAILURE:
			throw new ConcurrentRefUpdateException(
					JGitText.get().couldNotLockHEAD, refUpdate.getRef(), rc);
		default:
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().updatingRefFailed, Constants.HEAD,
					newHeadId.toString(), rc));
		}
	}

	/**
	 * Set merge strategy
	 *
	 * @param mergeStrategy
	 *            the {@link org.eclipse.jgit.merge.MergeStrategy} to be used
	 * @return {@code this}
	 */
	public MergeCommand setStrategy(MergeStrategy mergeStrategy) {
		checkCallable();
		this.mergeStrategy = mergeStrategy;
		return this;
	}

	/**
	 * Sets the content merge strategy to use if the
	 * {@link #setStrategy(MergeStrategy) merge strategy} is "resolve" or
	 * "recursive".
	 *
	 * @param strategy
	 *            the {@link ContentMergeStrategy} to be used
	 * @return {@code this}
	 * @since 5.12
	 */
	public MergeCommand setContentMergeStrategy(ContentMergeStrategy strategy) {
		checkCallable();
		this.contentStrategy = strategy;
		return this;
	}

	/**
	 * Reference to a commit to be merged with the current head
	 *
	 * @param aCommit
	 *            a reference to a commit which is merged with the current head
	 * @return {@code this}
	 */
	public MergeCommand include(Ref aCommit) {
		checkCallable();
		commits.add(aCommit);
		return this;
	}

	/**
	 * Id of a commit which is to be merged with the current head
	 *
	 * @param aCommit
	 *            the Id of a commit which is merged with the current head
	 * @return {@code this}
	 */
	public MergeCommand include(AnyObjectId aCommit) {
		return include(aCommit.getName(), aCommit);
	}

	/**
	 * Include a commit
	 *
	 * @param name
	 *            a name of a {@code Ref} pointing to the commit
	 * @param aCommit
	 *            the Id of a commit which is merged with the current head
	 * @return {@code this}
	 */
	public MergeCommand include(String name, AnyObjectId aCommit) {
		return include(new ObjectIdRef.Unpeeled(Storage.LOOSE, name,
				aCommit.copy()));
	}

	/**
	 * If <code>true</code>, will prepare the next commit in working tree and
	 * index as if a real merge happened, but do not make the commit or move the
	 * HEAD. Otherwise, perform the merge and commit the result.
	 * <p>
	 * In case the merge was successful but this flag was set to
	 * <code>true</code> a {@link org.eclipse.jgit.api.MergeResult} with status
	 * {@link org.eclipse.jgit.api.MergeResult.MergeStatus#MERGED_SQUASHED} or
	 * {@link org.eclipse.jgit.api.MergeResult.MergeStatus#FAST_FORWARD_SQUASHED}
	 * is returned.
	 *
	 * @param squash
	 *            whether to squash commits or not
	 * @return {@code this}
	 * @since 2.0
	 */
	public MergeCommand setSquash(boolean squash) {
		checkCallable();
		this.squash = Boolean.valueOf(squash);
		return this;
	}

	/**
	 * Sets the fast forward mode.
	 *
	 * @param fastForwardMode
	 *            corresponds to the --ff/--no-ff/--ff-only options. If
	 *            {@code null} use the value of the {@code merge.ff} option
	 *            configured in git config. If this option is not configured
	 *            --ff is the built-in default.
	 * @return {@code this}
	 * @since 2.2
	 */
	public MergeCommand setFastForward(
			@Nullable FastForwardMode fastForwardMode) {
		checkCallable();
		this.fastForwardMode = fastForwardMode;
		return this;
	}

	/**
	 * Controls whether the merge command should automatically commit after a
	 * successful merge
	 *
	 * @param commit
	 *            <code>true</code> if this command should commit (this is the
	 *            default behavior). <code>false</code> if this command should
	 *            not commit. In case the merge was successful but this flag was
	 *            set to <code>false</code> a
	 *            {@link org.eclipse.jgit.api.MergeResult} with type
	 *            {@link org.eclipse.jgit.api.MergeResult} with status
	 *            {@link org.eclipse.jgit.api.MergeResult.MergeStatus#MERGED_NOT_COMMITTED}
	 *            is returned
	 * @return {@code this}
	 * @since 3.0
	 */
	public MergeCommand setCommit(boolean commit) {
		this.commit = Boolean.valueOf(commit);
		return this;
	}

	/**
	 * Set the commit message to be used for the merge commit (in case one is
	 * created)
	 *
	 * @param message
	 *            the message to be used for the merge commit
	 * @return {@code this}
	 * @since 3.5
	 */
	public MergeCommand setMessage(String message) {
		this.message = message;
		return this;
	}

	/**
	 * If set to true a change id will be inserted into the commit message
	 *
	 * An existing change id is not replaced. An initial change id (I000...)
	 * will be replaced by the change id.
	 *
	 * @param insertChangeId
	 *            whether to insert a change id
	 * @return {@code this}
	 * @since 5.0
	 */
	public MergeCommand setInsertChangeId(boolean insertChangeId) {
		checkCallable();
		this.insertChangeId = insertChangeId;
		return this;
	}

	/**
	 * The progress monitor associated with the diff operation. By default, this
	 * is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            A progress monitor
	 * @return this instance
	 * @since 4.2
	 */
	public MergeCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 14450
Content-Disposition: inline; filename="MergeResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "0fa11f2cbbd0c55711aebb171e7f85d2bca21967"

/*
 * Copyright (C) 2010, Stefan Lay <stefan.lay@sap.com>
 * Copyright (C) 2010-2012, Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.text.MessageFormat;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.merge.MergeChunk;
import org.eclipse.jgit.merge.MergeChunk.ConflictState;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;

/**
 * Encapsulates the result of a {@link org.eclipse.jgit.api.MergeCommand}.
 */
public class MergeResult {

	/**
	 * The status the merge resulted in.
	 */
	public enum MergeStatus {
		/**
		 * Merge is a fast-forward
		 */
		FAST_FORWARD {
			@Override
			public String toString() {
				return "Fast-forward"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Merge is a fast-forward, squashed
		 *
		 * @since 2.0
		 */
		FAST_FORWARD_SQUASHED {
			@Override
			public String toString() {
				return "Fast-forward-squashed"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Already up to date, merge was a no-op
		 */
		ALREADY_UP_TO_DATE {
			@Override
			public String toString() {
				return "Already-up-to-date"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Merge failed
		 */
		FAILED {
			@Override
			public String toString() {
				return "Failed"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Merged
		 */
		MERGED {
			@Override
			public String toString() {
				return "Merged"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Merged, squashed, not updating HEAD
		 *
		 * @since 2.0
		 */
		MERGED_SQUASHED {
			@Override
			public String toString() {
				return "Merged-squashed"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Merged, squashed, not committed
		 *
		 * @since 3.0
		 */
		MERGED_SQUASHED_NOT_COMMITTED {
			@Override
			public String toString() {
				return "Merged-squashed-not-committed"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Merge raised conflicts to be resolved
		 */
		CONFLICTING {
			@Override
			public String toString() {
				return "Conflicting"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Merge was aborted
		 *
		 * @since 2.2
		 */
		ABORTED {
			@Override
			public String toString() {
				return "Aborted"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Merged, not committed
		 *
		 * @since 3.0
		 **/
		MERGED_NOT_COMMITTED {
			@Override
			public String toString() {
				return "Merged-not-committed"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/** Not yet supported */
		NOT_SUPPORTED {
			@Override
			public String toString() {
				return "Not-yet-supported"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Status representing a checkout conflict, meaning that nothing could
		 * be merged, as the pre-scan for the trees already failed for certain
		 * files (i.e. local modifications prevent checkout of files).
		 */
		CHECKOUT_CONFLICT {
			@Override
			public String toString() {
				return "Checkout Conflict"; //$NON-NLS-1$
			}

			@Override
			public boolean isSuccessful() {
				return false;
			}
		};

		/**
		 * Whether the merge was successful
		 *
		 * @return whether the status indicates a successful result
		 */
		public abstract boolean isSuccessful();
	}

	private ObjectId[] mergedCommits;

	private ObjectId base;

	private ObjectId newHead;

	private Map<String, int[][]> conflicts;

	private MergeStatus mergeStatus;

	private String description;

	private MergeStrategy mergeStrategy;

	private Map<String, MergeFailureReason> failingPaths;

	private List<String> checkoutConflicts;

	/**
	 * Constructor for MergeResult.
	 *
	 * @param newHead
	 *            the object the head points at after the merge
	 * @param base
	 *            the common base which was used to produce a content-merge. May
	 *            be <code>null</code> if the merge-result was produced without
	 *            computing a common base
	 * @param mergedCommits
	 *            all the commits which have been merged together
	 * @param mergeStatus
	 *            the status the merge resulted in
	 * @param mergeStrategy
	 *            the used {@link org.eclipse.jgit.merge.MergeStrategy}
	 * @param lowLevelResults
	 *            merge results as returned by
	 *            {@link org.eclipse.jgit.merge.ResolveMerger#getMergeResults()}
	 * @since 2.0
	 */
	public MergeResult(ObjectId newHead, ObjectId base,
			ObjectId[] mergedCommits, MergeStatus mergeStatus,
			MergeStrategy mergeStrategy,
			Map<String, org.eclipse.jgit.merge.MergeResult<?>> lowLevelResults) {
		this(newHead, base, mergedCommits, mergeStatus, mergeStrategy,
				lowLevelResults, null);
	}

	/**
	 * Constructor for MergeResult.
	 *
	 * @param newHead
	 *            the object the head points at after the merge
	 * @param base
	 *            the common base which was used to produce a content-merge. May
	 *            be <code>null</code> if the merge-result was produced without
	 *            computing a common base
	 * @param mergedCommits
	 *            all the commits which have been merged together
	 * @param mergeStatus
	 *            the status the merge resulted in
	 * @param mergeStrategy
	 *            the used {@link org.eclipse.jgit.merge.MergeStrategy}
	 * @param lowLevelResults
	 *            merge results as returned by
	 *            {@link org.eclipse.jgit.merge.ResolveMerger#getMergeResults()}
	 * @param description
	 *            a user friendly description of the merge result
	 */
	public MergeResult(ObjectId newHead, ObjectId base,
			ObjectId[] mergedCommits, MergeStatus mergeStatus,
			MergeStrategy mergeStrategy,
			Map<String, org.eclipse.jgit.merge.MergeResult<?>> lowLevelResults,
			String description) {
		this(newHead, base, mergedCommits, mergeStatus, mergeStrategy,
				lowLevelResults, null, description);
	}

	/**
	 * Constructor for MergeResult.
	 *
	 * @param newHead
	 *            the object the head points at after the merge
	 * @param base
	 *            the common base which was used to produce a content-merge. May
	 *            be <code>null</code> if the merge-result was produced without
	 *            computing a common base
	 * @param mergedCommits
	 *            all the commits which have been merged together
	 * @param mergeStatus
	 *            the status the merge resulted in
	 * @param mergeStrategy
	 *            the used {@link org.eclipse.jgit.merge.MergeStrategy}
	 * @param lowLevelResults
	 *            merge results as returned by
	 *            {@link org.eclipse.jgit.merge.ResolveMerger#getMergeResults()}
	 * @param failingPaths
	 *            list of paths causing this merge to fail as returned by
	 *            {@link org.eclipse.jgit.merge.ResolveMerger#getFailingPaths()}
	 * @param description
	 *            a user friendly description of the merge result
	 */
	public MergeResult(ObjectId newHead, ObjectId base,
			ObjectId[] mergedCommits, MergeStatus mergeStatus,
			MergeStrategy mergeStrategy,
			Map<String, org.eclipse.jgit.merge.MergeResult<?>> lowLevelResults,
			Map<String, MergeFailureReason> failingPaths, String description) {
		this.newHead = newHead;
		this.mergedCommits = mergedCommits;
		this.base = base;
		this.mergeStatus = mergeStatus;
		this.mergeStrategy = mergeStrategy;
		this.description = description;
		this.failingPaths = failingPaths;
		if (lowLevelResults != null)
			for (Map.Entry<String, org.eclipse.jgit.merge.MergeResult<?>> result : lowLevelResults
					.entrySet())
				addConflict(result.getKey(), result.getValue());
	}

	/**
	 * Creates a new result that represents a checkout conflict before the
	 * operation even started for real.
	 *
	 * @param checkoutConflicts
	 *            the conflicting files
	 */
	public MergeResult(List<String> checkoutConflicts) {
		this.checkoutConflicts = checkoutConflicts;
		this.mergeStatus = MergeStatus.CHECKOUT_CONFLICT;
	}

	/**
	 * Get the object the head points at after the merge
	 *
	 * @return the object the head points at after the merge
	 */
	public ObjectId getNewHead() {
		return newHead;
	}

	/**
	 * Get the merge status
	 *
	 * @return the status the merge resulted in
	 */
	public MergeStatus getMergeStatus() {
		return mergeStatus;
	}

	/**
	 * Get the commits which have been merged
	 *
	 * @return all the commits which have been merged together
	 */
	public ObjectId[] getMergedCommits() {
		return mergedCommits;
	}

	/**
	 * Get the common base
	 *
	 * @return base the common base which was used to produce a content-merge.
	 *         May be <code>null</code> if the merge-result was produced without
	 *         computing a common base
	 */
	public ObjectId getBase() {
		return base;
	}

	@SuppressWarnings("nls")
	@Override
	public String toString() {
		boolean first = true;
		StringBuilder commits = new StringBuilder();
		for (ObjectId commit : mergedCommits) {
			if (!first)
				commits.append(", ");
			else
				first = false;
			commits.append(ObjectId.toString(commit));
		}
		return MessageFormat.format(
				JGitText.get().mergeUsingStrategyResultedInDescription,
				commits, ObjectId.toString(base), mergeStrategy.getName(),
				mergeStatus, (description == null ? "" : ", " + description));
	}

	/**
	 * Set conflicts
	 *
	 * @param conflicts
	 *            the conflicts to set
	 */
	public void setConflicts(Map<String, int[][]> conflicts) {
		this.conflicts = conflicts;
	}

	/**
	 * Add a conflict
	 *
	 * @param path
	 *            path of the file to add a conflict for
	 * @param conflictingRanges
	 *            the conflicts to set
	 */
	public void addConflict(String path, int[][] conflictingRanges) {
		if (conflicts == null)
			conflicts = new HashMap<>();
		conflicts.put(path, conflictingRanges);
	}

	/**
	 * Add a conflict
	 *
	 * @param path
	 *            path of the file to add a conflict for
	 * @param lowLevelResult
	 *            a {@link org.eclipse.jgit.merge.MergeResult}
	 */
	public void addConflict(String path, org.eclipse.jgit.merge.MergeResult<?> lowLevelResult) {
		if (!lowLevelResult.containsConflicts())
			return;
		if (conflicts == null)
			conflicts = new HashMap<>();
		int nrOfConflicts = 0;
		// just counting
		for (MergeChunk mergeChunk : lowLevelResult) {
			if (mergeChunk.getConflictState().equals(ConflictState.FIRST_CONFLICTING_RANGE)) {
				nrOfConflicts++;
			}
		}
		int currentConflict = -1;
		int[][] ret=new int[nrOfConflicts][mergedCommits.length+1];
		for (MergeChunk mergeChunk : lowLevelResult) {
			// to store the end of this chunk (end of the last conflicting range)
			int endOfChunk = 0;
			if (mergeChunk.getConflictState().equals(ConflictState.FIRST_CONFLICTING_RANGE)) {
				if (currentConflict > -1) {
					// there was a previous conflicting range for which the end
					// is not set yet - set it!
					ret[currentConflict][mergedCommits.length] = endOfChunk;
				}
				currentConflict++;
				endOfChunk = mergeChunk.getEnd();
				ret[currentConflict][mergeChunk.getSequenceIndex()] = mergeChunk.getBegin();
			}
			if (mergeChunk.getConflictState().equals(ConflictState.NEXT_CONFLICTING_RANGE)) {
				if (mergeChunk.getEnd() > endOfChunk)
					endOfChunk = mergeChunk.getEnd();
				ret[currentConflict][mergeChunk.getSequenceIndex()] = mergeChunk.getBegin();
			}
		}
		conflicts.put(path, ret);
	}

	/**
	 * Returns information about the conflicts which occurred during a
	 * {@link org.eclipse.jgit.api.MergeCommand}. The returned value maps the
	 * path of a conflicting file to a two-dimensional int-array of line-numbers
	 * telling where in the file conflict markers for which merged commit can be
	 * found.
	 * <p>
	 * If the returned value contains a mapping "path"-&gt;[x][y]=z then this
	 * means
	 * <ul>
	 * <li>the file with path "path" contains conflicts</li>
	 * <li>if y &lt; "number of merged commits": for conflict number x in this
	 * file the chunk which was copied from commit number y starts on line
	 * number z. All numberings and line numbers start with 0.</li>
	 * <li>if y == "number of merged commits": the first non-conflicting line
	 * after conflict number x starts at line number z</li>
	 * </ul>
	 * <p>
	 * Example code how to parse this data:
	 *
	 * <pre>
	 * MergeResult m=...;
	 * Map&lt;String, int[][]&gt; allConflicts = m.getConflicts();
	 * for (String path : allConflicts.keySet()) {
	 * 	int[][] c = allConflicts.get(path);
	 * 	System.out.println("Conflicts in file " + path);
	 * 	for (int i = 0; i &lt; c.length; ++i) {
	 * 		System.out.println("  Conflict #" + i);
	 * 		for (int j = 0; j &lt; (c[i].length) - 1; ++j) {
	 * 			if (c[i][j] &gt;= 0)
	 * 				System.out.println("    Chunk for "
	 * 						+ m.getMergedCommits()[j] + " starts on line #"
	 * 						+ c[i][j]);
	 * 		}
	 * 	}
	 * }
	 * </pre>
	 *
	 * @return the conflicts or <code>null</code> if no conflict occurred
	 */
	public Map<String, int[][]> getConflicts() {
		return conflicts;
	}

	/**
	 * Returns a list of paths causing this merge to fail as returned by
	 * {@link org.eclipse.jgit.merge.ResolveMerger#getFailingPaths()}
	 *
	 * @return the list of paths causing this merge to fail or <code>null</code>
	 *         if no failure occurred
	 */
	public Map<String, MergeFailureReason> getFailingPaths() {
		return failingPaths;
	}

	/**
	 * Returns a list of paths that cause a checkout conflict. These paths
	 * prevent the operation from even starting.
	 *
	 * @return the list of files that caused the checkout conflict.
	 */
	public List<String> getCheckoutConflicts() {
		return checkoutConflicts;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 10333
Content-Disposition: inline; filename="NameRevCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "1ff6e98b12aa44055dd670854c05c7d00059600b"

/*
 * Copyright (C) 2013, Google Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.FIFORevQueue;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Command to find human-readable names of revisions.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-name-rev.html"
 *      >Git documentation about name-rev</a>
 * @since 3.0
 */
public class NameRevCommand extends GitCommand<Map<ObjectId, String>> {
	/** Amount of slop to allow walking past the earliest requested commit. */
	private static final int COMMIT_TIME_SLOP = 60 * 60 * 24;

	/** Cost of traversing a merge commit compared to a linear history. */
	private static final int MERGE_COST = 65535;

	private static class NameRevCommit extends RevCommit {
		private String tip;
		private int distance;
		private long cost;

		private NameRevCommit(AnyObjectId id) {
			super(id);
		}

		private StringBuilder format() {
			StringBuilder sb = new StringBuilder(tip);
			if (distance > 0)
				sb.append('~').append(distance);
			return sb;
		}

		@Override
		public String toString() {
			StringBuilder sb = new StringBuilder(getClass().getSimpleName())
				.append('[');
			if (tip != null) {
				sb.append(format());
			} else {
				sb.append((Object) null);
			}
			sb.append(',').append(cost).append(']').append(' ')
					.append(super.toString());
			return sb.toString();
		}
	}

	private final RevWalk walk;
	private final List<String> prefixes;
	private final List<ObjectId> revs;
	private List<Ref> refs;
	private int mergeCost;

	/**
	 * Create a new name-rev command.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected NameRevCommand(Repository repo) {
		super(repo);
		mergeCost = MERGE_COST;
		prefixes = new ArrayList<>(2);
		revs = new ArrayList<>(2);
		walk = new RevWalk(repo) {
			@Override
			public NameRevCommit createCommit(AnyObjectId id) {
				return new NameRevCommit(id);
			}
		};
	}

	@Override
	public Map<ObjectId, String> call() throws GitAPIException {
		try {
			Map<ObjectId, String> nonCommits = new HashMap<>();
			FIFORevQueue pending = new FIFORevQueue();
			if (refs != null) {
				for (Ref ref : refs)
					addRef(ref, nonCommits, pending);
			}
			addPrefixes(nonCommits, pending);
			int cutoff = minCommitTime() - COMMIT_TIME_SLOP;

			while (true) {
				NameRevCommit c = (NameRevCommit) pending.next();
				if (c == null)
					break;
				if (c.getCommitTime() < cutoff)
					continue;
				for (int i = 0; i < c.getParentCount(); i++) {
					NameRevCommit p = (NameRevCommit) walk.parseCommit(c.getParent(i));
					long cost = c.cost + (i > 0 ? mergeCost : 1);
					if (p.tip == null || compare(c.tip, cost, p.tip, p.cost) < 0) {
						if (i > 0) {
							p.tip = c.format().append('^').append(i + 1).toString();
							p.distance = 0;
						} else {
							p.tip = c.tip;
							p.distance = c.distance + 1;
						}
						p.cost = cost;
						pending.add(p);
					}
				}
			}

			Map<ObjectId, String> result =
				new LinkedHashMap<>(revs.size());
			for (ObjectId id : revs) {
				RevObject o = walk.parseAny(id);
				if (o instanceof NameRevCommit) {
					NameRevCommit c = (NameRevCommit) o;
					if (c.tip != null)
						result.put(id, simplify(c.format().toString()));
				} else {
					String name = nonCommits.get(id);
					if (name != null)
						result.put(id, simplify(name));
				}
			}

			setCallable(false);
			return result;
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} finally {
			walk.close();
		}
	}

	/**
	 * Add an object to search for.
	 *
	 * @param id
	 *            object ID to add.
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.MissingObjectException
	 *             the object supplied is not available from the object
	 *             database.
	 * @throws org.eclipse.jgit.api.errors.JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}.
	 */
	public NameRevCommand add(ObjectId id) throws MissingObjectException,
			JGitInternalException {
		checkCallable();
		try {
			walk.parseAny(id);
		} catch (MissingObjectException e) {
			throw e;
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
		revs.add(id.copy());
		return this;
	}

	/**
	 * Add multiple objects to search for.
	 *
	 * @param ids
	 *            object IDs to add.
	 * @return {@code this}
	 * @throws org.eclipse.jgit.errors.MissingObjectException
	 *             the object supplied is not available from the object
	 *             database.
	 * @throws org.eclipse.jgit.api.errors.JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}.
	 */
	public NameRevCommand add(Iterable<ObjectId> ids)
			throws MissingObjectException, JGitInternalException {
		for (ObjectId id : ids)
			add(id);
		return this;
	}

	/**
	 * Add a ref prefix to the set that results must match.
	 * <p>
	 * If an object matches multiple refs equally well, the first matching ref
	 * added with {@link #addRef(Ref)} is preferred, or else the first matching
	 * prefix added by {@link #addPrefix(String)}.
	 *
	 * @param prefix
	 *            prefix to add; the prefix must end with a slash
	 * @return {@code this}
	 */
	public NameRevCommand addPrefix(String prefix) {
		checkCallable();
		prefixes.add(prefix);
		return this;
	}

	/**
	 * Add all annotated tags under {@code refs/tags/} to the set that all
	 * results must match.
	 * <p>
	 * Calls {@link #addRef(Ref)}; see that method for a note on matching
	 * priority.
	 *
	 * @return {@code this}
	 * @throws JGitInternalException
	 *             a low-level exception of JGit has occurred. The original
	 *             exception can be retrieved by calling
	 *             {@link java.lang.Exception#getCause()}.
	 */
	public NameRevCommand addAnnotatedTags() {
		checkCallable();
		if (refs == null)
			refs = new ArrayList<>();
		try {
			for (Ref ref : repo.getRefDatabase()
					.getRefsByPrefix(Constants.R_TAGS)) {
				ObjectId id = ref.getObjectId();
				if (id != null && (walk.parseAny(id) instanceof RevTag))
					addRef(ref);
			}
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
		return this;
	}

	/**
	 * Add a ref to the set that all results must match.
	 * <p>
	 * If an object matches multiple refs equally well, the first matching ref
	 * added with {@link #addRef(Ref)} is preferred, or else the first matching
	 * prefix added by {@link #addPrefix(String)}.
	 *
	 * @param ref
	 *            ref to add.
	 * @return {@code this}
	 */
	public NameRevCommand addRef(Ref ref) {
		checkCallable();
		if (refs == null)
			refs = new ArrayList<>();
		refs.add(ref);
		return this;
	}

	NameRevCommand setMergeCost(int cost) {
		mergeCost = cost;
		return this;
	}

	private void addPrefixes(Map<ObjectId, String> nonCommits,
			FIFORevQueue pending) throws IOException {
		if (!prefixes.isEmpty()) {
			for (String prefix : prefixes)
				addPrefix(prefix, nonCommits, pending);
		} else if (refs == null)
			addPrefix(Constants.R_REFS, nonCommits, pending);
	}

	private void addPrefix(String prefix, Map<ObjectId, String> nonCommits,
			FIFORevQueue pending) throws IOException {
		for (Ref ref : repo.getRefDatabase().getRefsByPrefix(prefix))
			addRef(ref, nonCommits, pending);
	}

	private void addRef(Ref ref, Map<ObjectId, String> nonCommits,
			FIFORevQueue pending) throws IOException {
		if (ref.getObjectId() == null)
			return;
		RevObject o = walk.parseAny(ref.getObjectId());
		while (o instanceof RevTag) {
			RevTag t = (RevTag) o;
			nonCommits.put(o, ref.getName());
			o = t.getObject();
			walk.parseHeaders(o);
		}
		if (o instanceof NameRevCommit) {
			NameRevCommit c = (NameRevCommit) o;
			if (c.tip == null)
				c.tip = ref.getName();
			pending.add(c);
		} else if (!nonCommits.containsKey(o))
			nonCommits.put(o, ref.getName());
	}

	private int minCommitTime() throws IOException {
		int min = Integer.MAX_VALUE;
		for (ObjectId id : revs) {
			RevObject o = walk.parseAny(id);
			while (o instanceof RevTag) {
				o = ((RevTag) o).getObject();
				walk.parseHeaders(o);
			}
			if (o instanceof RevCommit) {
				RevCommit c = (RevCommit) o;
				if (c.getCommitTime() < min)
					min = c.getCommitTime();
			}
		}
		return min;
	}

	private long compare(String leftTip, long leftCost, String rightTip, long rightCost) {
		long c = leftCost - rightCost;
		if (c != 0 || prefixes.isEmpty())
			return c;
		int li = -1;
		int ri = -1;
		for (int i = 0; i < prefixes.size(); i++) {
			String prefix = prefixes.get(i);
			if (li < 0 && leftTip.startsWith(prefix))
				li = i;
			if (ri < 0 && rightTip.startsWith(prefix))
				ri = i;
		}
		// Don't tiebreak if prefixes are the same, in order to prefer first-parent
		// paths.
		return (long) li - ri;
	}

	private static String simplify(String refName) {
		if (refName.startsWith(Constants.R_HEADS))
			return refName.substring(Constants.R_HEADS.length());
		if (refName.startsWith(Constants.R_TAGS))
			return refName.substring(Constants.R_TAGS.length());
		if (refName.startsWith(Constants.R_REFS))
			return refName.substring(Constants.R_REFS.length());
		return refName;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 2070
Content-Disposition: inline; filename="PackRefsCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "29a69c5ac47e64f0319fb84c039061614c322d44"

/*
 * Copyright (c) 2024 Qualcomm Innovation Center, Inc.
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.api;

import java.io.IOException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;

/**
 * Optimize storage of references.
 *
 * @since 7.1
 */
public class PackRefsCommand extends GitCommand<String> {
	private ProgressMonitor monitor;

	private boolean all;

	/**
	 * Creates a new {@link PackRefsCommand} instance with default values.
	 *
	 * @param repo
	 * 		the repository this command will be used on
	 */
	public PackRefsCommand(Repository repo) {
		super(repo);
		this.monitor = NullProgressMonitor.INSTANCE;
	}

	/**
	 * Set progress monitor
	 *
	 * @param monitor
	 * 		a progress monitor
	 * @return this instance
	 */
	public PackRefsCommand setProgressMonitor(ProgressMonitor monitor) {
		this.monitor = monitor;
		return this;
	}

	/**
	 * Specify whether to pack all the references.
	 *
	 * @param all
	 * 		if <code>true</code> all the loose refs will be packed
	 * @return this instance
	 */
	public PackRefsCommand setAll(boolean all) {
		this.all = all;
		return this;
	}

	/**
	 * Whether to pack all the references
	 *
	 * @return whether to pack all the references
	 */
	public boolean isAll() {
		return all;
	}

	@Override
	public String call() throws GitAPIException {
		checkCallable();
		try {
			repo.getRefDatabase().packRefs(monitor, this);
			return JGitText.get().packRefsSuccessful;
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().packRefsFailed, e);
		}
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 18102
Content-Disposition: inline; filename="PullCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "4b2cee45c26e276340cd9ca8ebb573e91fc6eb6c"

/*
 * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2016, 2021 Laurent Delaigue <laurent.delaigue@obeo.fr> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;

import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.api.MergeCommand.FastForwardMode;
import org.eclipse.jgit.api.MergeCommand.FastForwardMode.Merge;
import org.eclipse.jgit.api.RebaseCommand.Operation;
import org.eclipse.jgit.api.errors.CanceledException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidConfigurationException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.RefNotAdvertisedException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.lib.SubmoduleConfig.FetchRecurseSubmodulesMode;
import org.eclipse.jgit.merge.ContentMergeStrategy;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.FetchResult;
import org.eclipse.jgit.transport.TagOpt;

/**
 * The Pull command
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-pull.html"
 *      >Git documentation about Pull</a>
 */
public class PullCommand extends TransportCommand<PullCommand, PullResult> {

	private static final String DOT = "."; //$NON-NLS-1$

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private BranchRebaseMode pullRebaseMode = null;

	private String remote;

	private String remoteBranchName;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private ContentMergeStrategy contentStrategy;

	private TagOpt tagOption;

	private FastForwardMode fastForwardMode;

	private FetchRecurseSubmodulesMode submoduleRecurseMode = null;

	/**
	 * Constructor for PullCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected PullCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Set progress monitor
	 *
	 * @param monitor
	 *            a progress monitor
	 * @return this instance
	 */
	public PullCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Set if rebase should be used after fetching. If set to true, rebase is
	 * used instead of merge. This is equivalent to --rebase on the command
	 * line.
	 * <p>
	 * If set to false, merge is used after fetching, overriding the
	 * configuration file. This is equivalent to --no-rebase on the command
	 * line.
	 * <p>
	 * This setting overrides the settings in the configuration file. By
	 * default, the setting in the repository configuration file is used.
	 * <p>
	 * A branch can be configured to use rebase by default. See
	 * branch.[name].rebase and branch.autosetuprebase.
	 *
	 * @param useRebase
	 *            whether to use rebase after fetching
	 * @return {@code this}
	 */
	public PullCommand setRebase(boolean useRebase) {
		checkCallable();
		pullRebaseMode = useRebase ? BranchRebaseMode.REBASE
				: BranchRebaseMode.NONE;
		return this;
	}

	/**
	 * Sets the {@link org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode} to
	 * use after fetching.
	 *
	 * <dl>
	 * <dt>BranchRebaseMode.REBASE</dt>
	 * <dd>Equivalent to {@code --rebase} on the command line: use rebase
	 * instead of merge after fetching.</dd>
	 * <dt>BranchRebaseMode.MERGES</dt>
	 * <dd>Equivalent to {@code --rebase-merges} on the command line: rebase
	 * preserving local merge commits.</dd>
	 * <dt>BranchRebaseMode.INTERACTIVE</dt>
	 * <dd>Equivalent to {@code --interactive} on the command line: use
	 * interactive rebase.</dd>
	 * <dt>BranchRebaseMode.NONE</dt>
	 * <dd>Equivalent to {@code --no-rebase}: merge instead of rebasing.
	 * <dt>{@code null}</dt>
	 * <dd>Use the setting defined in the git configuration, either {@code
	 * branch.[name].rebase} or, if not set, {@code pull.rebase}</dd>
	 * </dl>
	 *
	 * This setting overrides the settings in the configuration file. By
	 * default, the setting in the repository configuration file is used.
	 * <p>
	 * A branch can be configured to use rebase by default. See
	 * {@code branch.[name].rebase}, {@code branch.autosetuprebase}, and
	 * {@code pull.rebase}.
	 *
	 * @param rebaseMode
	 *            the {@link org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode}
	 *            to use
	 * @return {@code this}
	 * @since 4.5
	 */
	public PullCommand setRebase(BranchRebaseMode rebaseMode) {
		checkCallable();
		pullRebaseMode = rebaseMode;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the {@code Pull} command with all the options and parameters
	 * collected by the setter methods (e.g.
	 * {@link #setProgressMonitor(ProgressMonitor)}) of this class. Each
	 * instance of this class should only be used for one invocation of the
	 * command. Don't call this method twice on an instance.
	 */
	@Override
	public PullResult call() throws GitAPIException,
			WrongRepositoryStateException, InvalidConfigurationException,
			InvalidRemoteException, CanceledException,
			RefNotFoundException, RefNotAdvertisedException, NoHeadException,
			org.eclipse.jgit.api.errors.TransportException {
		checkCallable();

		monitor.beginTask(JGitText.get().pullTaskName, 2);
		Config repoConfig = repo.getConfig();

		String branchName = null;
		try {
			String fullBranch = repo.getFullBranch();
			if (fullBranch != null
					&& fullBranch.startsWith(Constants.R_HEADS)) {
				branchName = fullBranch.substring(Constants.R_HEADS.length());
			}
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfPullCommand,
					e);
		}
		if (remoteBranchName == null && branchName != null) {
			// get the name of the branch in the remote repository
			// stored in configuration key branch.<branch name>.merge
			remoteBranchName = repoConfig.getString(
					ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
					ConfigConstants.CONFIG_KEY_MERGE);
		}
		if (remoteBranchName == null) {
			remoteBranchName = branchName;
		}
		if (remoteBranchName == null) {
			throw new NoHeadException(
					JGitText.get().cannotCheckoutFromUnbornBranch);
		}

		if (!repo.getRepositoryState().equals(RepositoryState.SAFE))
			throw new WrongRepositoryStateException(MessageFormat.format(
					JGitText.get().cannotPullOnARepoWithState, repo
							.getRepositoryState().name()));

		if (remote == null && branchName != null) {
			// get the configured remote for the currently checked out branch
			// stored in configuration key branch.<branch name>.remote
			remote = repoConfig.getString(
					ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
					ConfigConstants.CONFIG_KEY_REMOTE);
		}
		if (remote == null) {
			// fall back to default remote
			remote = Constants.DEFAULT_REMOTE_NAME;
		}

		// determines whether rebase should be used after fetching
		if (pullRebaseMode == null && branchName != null) {
			pullRebaseMode = getRebaseMode(branchName, repoConfig);
		}


		final boolean isRemote = !remote.equals("."); //$NON-NLS-1$
		String remoteUri;
		FetchResult fetchRes;
		if (isRemote) {
			remoteUri = repoConfig.getString(
					ConfigConstants.CONFIG_REMOTE_SECTION, remote,
					ConfigConstants.CONFIG_KEY_URL);
			if (remoteUri == null) {
				String missingKey = ConfigConstants.CONFIG_REMOTE_SECTION + DOT
						+ remote + DOT + ConfigConstants.CONFIG_KEY_URL;
				throw new InvalidConfigurationException(MessageFormat.format(
						JGitText.get().missingConfigurationForKey, missingKey));
			}

			if (monitor.isCancelled())
				throw new CanceledException(MessageFormat.format(
						JGitText.get().operationCanceled,
						JGitText.get().pullTaskName));

			FetchCommand fetch = new FetchCommand(repo).setRemote(remote)
					.setProgressMonitor(monitor).setTagOpt(tagOption)
					.setRecurseSubmodules(submoduleRecurseMode);
			configure(fetch);

			fetchRes = fetch.call();
		} else {
			// we can skip the fetch altogether
			remoteUri = JGitText.get().localRepository;
			fetchRes = null;
		}

		monitor.update(1);

		if (monitor.isCancelled())
			throw new CanceledException(MessageFormat.format(
					JGitText.get().operationCanceled,
					JGitText.get().pullTaskName));

		// we check the updates to see which of the updated branches
		// corresponds to the remote branch name
		AnyObjectId commitToMerge;
		if (isRemote) {
			Ref r = null;
			if (fetchRes != null) {
				r = fetchRes.getAdvertisedRef(remoteBranchName);
				if (r == null) {
					r = fetchRes.getAdvertisedRef(Constants.R_HEADS
							+ remoteBranchName);
				}
			}
			if (r == null) {
				throw new RefNotAdvertisedException(MessageFormat.format(
						JGitText.get().couldNotGetAdvertisedRef, remote,
						remoteBranchName));
			}
			commitToMerge = r.getObjectId();
		} else {
			try {
				commitToMerge = repo.resolve(remoteBranchName);
				if (commitToMerge == null) {
					throw new RefNotFoundException(MessageFormat.format(
							JGitText.get().refNotResolved, remoteBranchName));
				}
			} catch (IOException e) {
				throw new JGitInternalException(
						JGitText.get().exceptionCaughtDuringExecutionOfPullCommand,
						e);
			}
		}

		String upstreamName = MessageFormat.format(
				JGitText.get().upstreamBranchName,
				Repository.shortenRefName(remoteBranchName), remoteUri);

		PullResult result;
		if (pullRebaseMode != BranchRebaseMode.NONE) {
			try {
				Ref head = repo.exactRef(Constants.HEAD);
				if (head == null) {
					throw new NoHeadException(JGitText
							.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
				}
				ObjectId headId = head.getObjectId();
				if (headId == null) {
					// Pull on an unborn branch: checkout
					try (RevWalk revWalk = new RevWalk(repo)) {
						RevCommit srcCommit = revWalk
								.parseCommit(commitToMerge);
						DirCacheCheckout dco = new DirCacheCheckout(repo,
								repo.lockDirCache(), srcCommit.getTree());
						dco.setFailOnConflict(true);
						dco.setProgressMonitor(monitor);
						dco.checkout();
						RefUpdate refUpdate = repo
								.updateRef(head.getTarget().getName());
						refUpdate.setNewObjectId(commitToMerge);
						refUpdate.setExpectedOldObjectId(null);
						refUpdate.setRefLogMessage("initial pull", false); //$NON-NLS-1$
						if (refUpdate.update() != Result.NEW) {
							throw new NoHeadException(JGitText
									.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
						}
						monitor.endTask();
						return new PullResult(fetchRes, remote,
								RebaseResult.result(
										RebaseResult.Status.FAST_FORWARD,
										srcCommit));
					}
				}
			} catch (NoHeadException e) {
				throw e;
			} catch (IOException e) {
				throw new JGitInternalException(JGitText
						.get().exceptionCaughtDuringExecutionOfPullCommand, e);
			}
			RebaseCommand rebase = new RebaseCommand(repo);
			RebaseResult rebaseRes = rebase.setUpstream(commitToMerge)
					.setProgressMonitor(monitor)
					.setUpstreamName(upstreamName)
					.setOperation(Operation.BEGIN)
					.setStrategy(strategy)
					.setContentMergeStrategy(contentStrategy)
					.setPreserveMerges(
							pullRebaseMode == BranchRebaseMode.MERGES)
					.call();
			result = new PullResult(fetchRes, remote, rebaseRes);
		} else {
			MergeCommand merge = new MergeCommand(repo);
			MergeResult mergeRes = merge.include(upstreamName, commitToMerge)
					.setProgressMonitor(monitor)
					.setStrategy(strategy)
					.setContentMergeStrategy(contentStrategy)
					.setFastForward(getFastForwardMode()).call();
			monitor.update(1);
			result = new PullResult(fetchRes, remote, mergeRes);
		}
		monitor.endTask();
		return result;
	}

	/**
	 * The remote (uri or name) to be used for the pull operation. If no remote
	 * is set, the branch's configuration will be used. If the branch
	 * configuration is missing the default value of
	 * <code>Constants.DEFAULT_REMOTE_NAME</code> will be used.
	 *
	 * @see Constants#DEFAULT_REMOTE_NAME
	 * @param remote
	 *            name of the remote to pull from
	 * @return {@code this}
	 * @since 3.3
	 */
	public PullCommand setRemote(String remote) {
		checkCallable();
		this.remote = remote;
		return this;
	}

	/**
	 * The remote branch name to be used for the pull operation. If no
	 * remoteBranchName is set, the branch's configuration will be used. If the
	 * branch configuration is missing the remote branch with the same name as
	 * the current branch is used.
	 *
	 * @param remoteBranchName
	 *            remote branch name to be used for pull operation
	 * @return {@code this}
	 * @since 3.3
	 */
	public PullCommand setRemoteBranchName(String remoteBranchName) {
		checkCallable();
		this.remoteBranchName = remoteBranchName;
		return this;
	}

	/**
	 * Get the remote name used for pull operation
	 *
	 * @return the remote used for the pull operation if it was set explicitly
	 * @since 3.3
	 */
	public String getRemote() {
		return remote;
	}

	/**
	 * Get the remote branch name for the pull operation
	 *
	 * @return the remote branch name used for the pull operation if it was set
	 *         explicitly
	 * @since 3.3
	 */
	public String getRemoteBranchName() {
		return remoteBranchName;
	}

	/**
	 * Set the @{code MergeStrategy}
	 *
	 * @param strategy
	 *            The merge strategy to use during this pull operation.
	 * @return {@code this}
	 * @since 3.4
	 */
	public PullCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * Sets the content merge strategy to use if the
	 * {@link #setStrategy(MergeStrategy) merge strategy} is "resolve" or
	 * "recursive".
	 *
	 * @param strategy
	 *            the {@link ContentMergeStrategy} to be used
	 * @return {@code this}
	 * @since 5.12
	 */
	public PullCommand setContentMergeStrategy(ContentMergeStrategy strategy) {
		this.contentStrategy = strategy;
		return this;
	}

	/**
	 * Set the specification of annotated tag behavior during fetch
	 *
	 * @param tagOpt
	 *            the {@link org.eclipse.jgit.transport.TagOpt}
	 * @return {@code this}
	 * @since 4.7
	 */
	public PullCommand setTagOpt(TagOpt tagOpt) {
		checkCallable();
		this.tagOption = tagOpt;
		return this;
	}

	/**
	 * Set the fast forward mode. It is used if pull is configured to do a merge
	 * as opposed to rebase. If non-{@code null} takes precedence over the
	 * fast-forward mode configured in git config.
	 *
	 * @param fastForwardMode
	 *            corresponds to the --ff/--no-ff/--ff-only options. If
	 *            {@code null} use the value of {@code pull.ff} configured in
	 *            git config. If {@code pull.ff} is not configured fall back to
	 *            the value of {@code merge.ff}. If {@code merge.ff} is not
	 *            configured --ff is the built-in default.
	 * @return {@code this}
	 * @since 4.9
	 */
	public PullCommand setFastForward(
			@Nullable FastForwardMode fastForwardMode) {
		checkCallable();
		this.fastForwardMode = fastForwardMode;
		return this;
	}

	/**
	 * Set the mode to be used for recursing into submodules.
	 *
	 * @param recurse
	 *            the
	 *            {@link org.eclipse.jgit.lib.SubmoduleConfig.FetchRecurseSubmodulesMode}
	 *            to be used for recursing into submodules
	 * @return {@code this}
	 * @since 4.7
	 * @see FetchCommand#setRecurseSubmodules(FetchRecurseSubmodulesMode)
	 */
	public PullCommand setRecurseSubmodules(
			@Nullable FetchRecurseSubmodulesMode recurse) {
		this.submoduleRecurseMode = recurse;
		return this;
	}

	/**
	 * Reads the rebase mode to use for a pull command from the repository
	 * configuration. This is the value defined for the configurations
	 * {@code branch.[branchName].rebase}, or,if not set, {@code pull.rebase}.
	 * If neither is set, yields
	 * {@link org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode#NONE}.
	 *
	 * @param branchName
	 *            name of the local branch
	 * @param config
	 *            the {@link org.eclipse.jgit.lib.Config} to read the value from
	 * @return the {@link org.eclipse.jgit.lib.BranchConfig.BranchRebaseMode}
	 * @since 4.5
	 */
	public static BranchRebaseMode getRebaseMode(String branchName,
			Config config) {
		BranchRebaseMode mode = config.getEnum(BranchRebaseMode.values(),
				ConfigConstants.CONFIG_BRANCH_SECTION,
				branchName, ConfigConstants.CONFIG_KEY_REBASE);
		if (mode == null) {
			mode = config.getEnum(
					ConfigConstants.CONFIG_PULL_SECTION, null,
					ConfigConstants.CONFIG_KEY_REBASE, BranchRebaseMode.NONE);
		}
		return mode;
	}

	private FastForwardMode getFastForwardMode() {
		if (fastForwardMode != null) {
			return fastForwardMode;
		}
		Config config = repo.getConfig();
		Merge ffMode = config.getEnum(Merge.values(),
				ConfigConstants.CONFIG_PULL_SECTION, null,
				ConfigConstants.CONFIG_KEY_FF);
		return ffMode != null ? FastForwardMode.valueOf(ffMode) : null;
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 2606
Content-Disposition: inline; filename="PullResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "fdc7f3f333dc2fa84a3d8b2b9f092295cb55141c"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import org.eclipse.jgit.transport.FetchResult;

/**
 * Encapsulates the result of a {@link org.eclipse.jgit.api.PullCommand}
 */
public class PullResult {
	private final FetchResult fetchResult;

	private final MergeResult mergeResult;

	private final RebaseResult rebaseResult;

	private final String fetchedFrom;

	PullResult(FetchResult fetchResult, String fetchedFrom,
			MergeResult mergeResult) {
		this.fetchResult = fetchResult;
		this.fetchedFrom = fetchedFrom;
		this.mergeResult = mergeResult;
		this.rebaseResult = null;
	}

	PullResult(FetchResult fetchResult, String fetchedFrom,
			RebaseResult rebaseResult) {
		this.fetchResult = fetchResult;
		this.fetchedFrom = fetchedFrom;
		this.mergeResult = null;
		this.rebaseResult = rebaseResult;
	}

	/**
	 * Get fetch result
	 *
	 * @return the fetch result, or <code>null</code>
	 */
	public FetchResult getFetchResult() {
		return this.fetchResult;
	}

	/**
	 * Get merge result
	 *
	 * @return the merge result, or <code>null</code>
	 */
	public MergeResult getMergeResult() {
		return this.mergeResult;
	}

	/**
	 * Get rebase result
	 *
	 * @return the rebase result, or <code>null</code>
	 */
	public RebaseResult getRebaseResult() {
		return this.rebaseResult;
	}

	/**
	 * Get name of the remote configuration from which fetch was tried
	 *
	 * @return the name of the remote configuration from which fetch was tried,
	 *         or <code>null</code>
	 */
	public String getFetchedFrom() {
		return this.fetchedFrom;
	}

	/**
	 * Whether the pull was successful
	 *
	 * @return whether the pull was successful
	 */
	public boolean isSuccessful() {
		if (mergeResult != null)
			return mergeResult.getMergeStatus().isSuccessful();
		else if (rebaseResult != null)
			return rebaseResult.getStatus().isSuccessful();
		return true;
	}

	@SuppressWarnings("nls")
	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		if (fetchResult != null)
			sb.append(fetchResult.toString());
		else
			sb.append("No fetch result");
		sb.append("\n");
		if (mergeResult != null)
			sb.append(mergeResult.toString());
		else if (rebaseResult != null)
			sb.append(rebaseResult.toString());
		else
			sb.append("No update result");
		return sb.toString();
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 19527
Content-Disposition: inline; filename="PushCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "e9d1a3213b05094bf09a3dd56a2e02a3373b977a"

/*
 * Copyright (C) 2010, 2022 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.URISyntaxException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.jgit.api.errors.DetachedHeadException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.InvalidRemoteException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TooLargeObjectInPackException;
import org.eclipse.jgit.errors.TooLargePackException;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.BranchConfig;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.PushConfig;
import org.eclipse.jgit.transport.PushConfig.PushDefault;
import org.eclipse.jgit.transport.PushResult;
import org.eclipse.jgit.transport.RefLeaseSpec;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.RemoteRefUpdate;
import org.eclipse.jgit.transport.Transport;

/**
 * A class used to execute a {@code Push} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-push.html"
 *      >Git documentation about Push</a>
 */
public class PushCommand extends
		TransportCommand<PushCommand, Iterable<PushResult>> {

	private String remote;

	private final List<RefSpec> refSpecs;

	private final Map<String, RefLeaseSpec> refLeaseSpecs;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private String receivePack = RemoteConfig.DEFAULT_RECEIVE_PACK;

	private boolean dryRun;
	private boolean atomic;
	private boolean force;
	private boolean thin = Transport.DEFAULT_PUSH_THIN;
	private boolean useBitmaps = Transport.DEFAULT_PUSH_USE_BITMAPS;

	private PrintStream hookOutRedirect;

	private PrintStream hookErrRedirect;

	private OutputStream out;

	private List<String> pushOptions;

	// Legacy behavior as default. Use setPushDefault(null) to determine the
	// value from the git config.
	private PushDefault pushDefault = PushDefault.CURRENT;

	/**
	 * <p>
	 * Constructor for PushCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected PushCommand(Repository repo) {
		super(repo);
		refSpecs = new ArrayList<>(3);
		refLeaseSpecs = new HashMap<>();
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Execute the {@code push} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command (means: one
	 * call to {@link #call()})
	 */
	@Override
	public Iterable<PushResult> call() throws GitAPIException,
			InvalidRemoteException,
			org.eclipse.jgit.api.errors.TransportException {
		checkCallable();
		setCallable(false);

		ArrayList<PushResult> pushResults = new ArrayList<>(3);

		try {
			Config config = repo.getConfig();
			remote = determineRemote(config, remote);
			if (refSpecs.isEmpty()) {
				RemoteConfig rc = new RemoteConfig(config,
						getRemote());
				refSpecs.addAll(rc.getPushRefSpecs());
				if (refSpecs.isEmpty()) {
					determineDefaultRefSpecs(config);
				}
			}

			if (force) {
				for (int i = 0; i < refSpecs.size(); i++)
					refSpecs.set(i, refSpecs.get(i).setForceUpdate(true));
			}

			List<Transport> transports = Transport.openAll(repo, remote,
					Transport.Operation.PUSH);
			for (@SuppressWarnings("resource") // Explicitly closed in finally
					final Transport transport : transports) {
				transport.setPushThin(thin);
				transport.setPushAtomic(atomic);
				if (receivePack != null)
					transport.setOptionReceivePack(receivePack);
				transport.setDryRun(dryRun);
				transport.setPushOptions(pushOptions);
				transport.setPushUseBitmaps(useBitmaps);
				transport.setHookOutputStream(hookOutRedirect);
				transport.setHookErrorStream(hookErrRedirect);
				configure(transport);

				final Collection<RemoteRefUpdate> toPush = transport
						.findRemoteRefUpdatesFor(refSpecs, refLeaseSpecs);

				try {
					PushResult result = transport.push(monitor, toPush, out);
					pushResults.add(result);

				} catch (TooLargePackException e) {
					throw new org.eclipse.jgit.api.errors.TooLargePackException(
							e.getMessage(), e);
				} catch (TooLargeObjectInPackException e) {
					throw new org.eclipse.jgit.api.errors.TooLargeObjectInPackException(
							e.getMessage(), e);
				} catch (TransportException e) {
					throw new org.eclipse.jgit.api.errors.TransportException(
							e.getMessage(), e);
				} finally {
					transport.close();
				}
			}

		} catch (URISyntaxException e) {
			throw new InvalidRemoteException(
					MessageFormat.format(JGitText.get().invalidRemote, remote),
					e);
		} catch (TransportException e) {
			throw new org.eclipse.jgit.api.errors.TransportException(
					e.getMessage(), e);
		} catch (NotSupportedException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfPushCommand,
					e);
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfPushCommand,
					e);
		}

		return pushResults;
	}

	private String determineRemote(Config config, String remoteName)
			throws IOException {
		if (remoteName != null) {
			return remoteName;
		}
		Ref head = repo.exactRef(Constants.HEAD);
		String effectiveRemote = null;
		BranchConfig branchCfg = null;
		if (head != null && head.isSymbolic()) {
			String currentBranch = head.getLeaf().getName();
			branchCfg = new BranchConfig(config,
					Repository.shortenRefName(currentBranch));
			effectiveRemote = branchCfg.getPushRemote();
		}
		if (effectiveRemote == null) {
			effectiveRemote = config.getString(
					ConfigConstants.CONFIG_REMOTE_SECTION, null,
					ConfigConstants.CONFIG_KEY_PUSH_DEFAULT);
			if (effectiveRemote == null && branchCfg != null) {
				effectiveRemote = branchCfg.getRemote();
			}
		}
		if (effectiveRemote == null) {
			effectiveRemote = Constants.DEFAULT_REMOTE_NAME;
		}
		return effectiveRemote;
	}

	private String getCurrentBranch()
			throws IOException, DetachedHeadException {
		Ref head = repo.exactRef(Constants.HEAD);
		if (head != null && head.isSymbolic()) {
			return head.getLeaf().getName();
		}
		throw new DetachedHeadException();
	}

	private void determineDefaultRefSpecs(Config config)
			throws IOException, GitAPIException {
		if (pushDefault == null) {
			pushDefault = config.get(PushConfig::new).getPushDefault();
		}
		switch (pushDefault) {
		case CURRENT:
			refSpecs.add(new RefSpec(getCurrentBranch()));
			break;
		case MATCHING:
			refSpecs.add(new RefSpec(":")); //$NON-NLS-1$
			break;
		case NOTHING:
			throw new InvalidRefNameException(
					JGitText.get().pushDefaultNothing);
		case SIMPLE:
		case UPSTREAM:
			String currentBranch = getCurrentBranch();
			BranchConfig branchCfg = new BranchConfig(config,
					Repository.shortenRefName(currentBranch));
			String fetchRemote = branchCfg.getRemote();
			if (fetchRemote == null) {
				fetchRemote = Constants.DEFAULT_REMOTE_NAME;
			}
			boolean isTriangular = !fetchRemote.equals(remote);
			if (isTriangular) {
				if (PushDefault.UPSTREAM.equals(pushDefault)) {
					throw new InvalidRefNameException(MessageFormat.format(
							JGitText.get().pushDefaultTriangularUpstream,
							remote, fetchRemote));
				}
				// Strange, but consistent with C git: "simple" doesn't even
				// check whether there is a configured upstream, and if so, that
				// it is equal to the local branch name. It just becomes
				// "current".
				refSpecs.add(new RefSpec(currentBranch));
			} else {
				String trackedBranch = branchCfg.getMerge();
				if (branchCfg.isRemoteLocal() || trackedBranch == null
						|| !trackedBranch.startsWith(Constants.R_HEADS)) {
					throw new InvalidRefNameException(MessageFormat.format(
							JGitText.get().pushDefaultNoUpstream,
							currentBranch));
				}
				if (PushDefault.SIMPLE.equals(pushDefault)
						&& !trackedBranch.equals(currentBranch)) {
					throw new InvalidRefNameException(MessageFormat.format(
							JGitText.get().pushDefaultSimple, currentBranch,
							trackedBranch));
				}
				refSpecs.add(new RefSpec(currentBranch + ':' + trackedBranch));
			}
			break;
		default:
			throw new InvalidRefNameException(MessageFormat
					.format(JGitText.get().pushDefaultUnknown, pushDefault));
		}
	}

	/**
	 * The remote (uri or name) used for the push operation. If no remote is
	 * set, the default value of <code>Constants.DEFAULT_REMOTE_NAME</code> will
	 * be used.
	 *
	 * @see Constants#DEFAULT_REMOTE_NAME
	 * @param remote
	 *            the remote name
	 * @return {@code this}
	 */
	public PushCommand setRemote(String remote) {
		checkCallable();
		this.remote = remote;
		return this;
	}

	/**
	 * Get remote name
	 *
	 * @return the remote used for the remote operation
	 */
	public String getRemote() {
		return remote;
	}

	/**
	 * Sets a {@link PrintStream} a "pre-push" hook may write its stdout to. If
	 * not set, {@link System#out} will be used.
	 * <p>
	 * When pushing to several remote repositories the stream is shared for all
	 * pushes.
	 * </p>
	 *
	 * @param redirect
	 *            {@link PrintStream} to use; if {@code null},
	 *            {@link System#out} will be used
	 * @return {@code this}
	 * @since 6.4
	 */
	public PushCommand setHookOutputStream(PrintStream redirect) {
		checkCallable();
		hookOutRedirect = redirect;
		return this;
	}

	/**
	 * Sets a {@link PrintStream} a "pre-push" hook may write its stderr to. If
	 * not set, {@link System#err} will be used.
	 * <p>
	 * When pushing to several remote repositories the stream is shared for all
	 * pushes.
	 * </p>
	 *
	 * @param redirect
	 *            {@link PrintStream} to use; if {@code null},
	 *            {@link System#err} will be used
	 * @return {@code this}
	 * @since 6.4
	 */
	public PushCommand setHookErrorStream(PrintStream redirect) {
		checkCallable();
		hookErrRedirect = redirect;
		return this;
	}

	/**
	 * The remote executable providing receive-pack service for pack transports.
	 * If no receive-pack is set, the default value of
	 * <code>RemoteConfig.DEFAULT_RECEIVE_PACK</code> will be used.
	 *
	 * @see RemoteConfig#DEFAULT_RECEIVE_PACK
	 * @param receivePack
	 *            name of the remote executable providing the receive-pack
	 *            service
	 * @return {@code this}
	 */
	public PushCommand setReceivePack(String receivePack) {
		checkCallable();
		this.receivePack = receivePack;
		return this;
	}

	/**
	 * Get the name of the remote executable providing the receive-pack service
	 *
	 * @return the receive-pack used for the remote operation
	 */
	public String getReceivePack() {
		return receivePack;
	}

	/**
	 * Get timeout used for push operation
	 *
	 * @return the timeout used for the push operation
	 */
	public int getTimeout() {
		return timeout;
	}

	/**
	 * Get the progress monitor
	 *
	 * @return the progress monitor for the push operation
	 */
	public ProgressMonitor getProgressMonitor() {
		return monitor;
	}

	/**
	 * The progress monitor associated with the push operation. By default, this
	 * is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 */
	public PushCommand setProgressMonitor(ProgressMonitor monitor) {
		checkCallable();
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Get the <code>RefLeaseSpec</code>s.
	 *
	 * @return the <code>RefLeaseSpec</code>s
	 * @since 4.7
	 */
	public List<RefLeaseSpec> getRefLeaseSpecs() {
		return new ArrayList<>(refLeaseSpecs.values());
	}

	/**
	 * The ref lease specs to be used in the push operation, for a
	 * force-with-lease push operation.
	 *
	 * @param specs
	 *            a {@link org.eclipse.jgit.transport.RefLeaseSpec} object.
	 * @return {@code this}
	 * @since 4.7
	 */
	public PushCommand setRefLeaseSpecs(RefLeaseSpec... specs) {
		return setRefLeaseSpecs(Arrays.asList(specs));
	}

	/**
	 * The ref lease specs to be used in the push operation, for a
	 * force-with-lease push operation.
	 *
	 * @param specs
	 *            list of {@code RefLeaseSpec}s
	 * @return {@code this}
	 * @since 4.7
	 */
	public PushCommand setRefLeaseSpecs(List<RefLeaseSpec> specs) {
		checkCallable();
		this.refLeaseSpecs.clear();
		for (RefLeaseSpec spec : specs) {
			refLeaseSpecs.put(spec.getRef(), spec);
		}
		return this;
	}

	/**
	 * Get {@code RefSpec}s.
	 *
	 * @return the ref specs
	 */
	public List<RefSpec> getRefSpecs() {
		return refSpecs;
	}

	/**
	 * The ref specs to be used in the push operation
	 *
	 * @param specs a {@link org.eclipse.jgit.transport.RefSpec} object.
	 * @return {@code this}
	 */
	public PushCommand setRefSpecs(RefSpec... specs) {
		checkCallable();
		this.refSpecs.clear();
		Collections.addAll(refSpecs, specs);
		return this;
	}

	/**
	 * The ref specs to be used in the push operation
	 *
	 * @param specs
	 *            list of {@link org.eclipse.jgit.transport.RefSpec}s
	 * @return {@code this}
	 */
	public PushCommand setRefSpecs(List<RefSpec> specs) {
		checkCallable();
		this.refSpecs.clear();
		this.refSpecs.addAll(specs);
		return this;
	}

	/**
	 * Retrieves the {@link PushDefault} currently set.
	 *
	 * @return the {@link PushDefault}, or {@code null} if not set
	 * @since 6.1
	 */
	public PushDefault getPushDefault() {
		return pushDefault;
	}

	/**
	 * Sets an explicit {@link PushDefault}. The default used if this is not
	 * called is {@link PushDefault#CURRENT} for compatibility reasons with
	 * earlier JGit versions.
	 *
	 * @param pushDefault
	 *            {@link PushDefault} to set; if {@code null} the value defined
	 *            in the git config will be used.
	 *
	 * @return {@code this}
	 * @since 6.1
	 */
	public PushCommand setPushDefault(PushDefault pushDefault) {
		checkCallable();
		this.pushDefault = pushDefault;
		return this;
	}

	/**
	 * Push all branches under refs/heads/*.
	 *
	 * @return {@code this}
	 */
	public PushCommand setPushAll() {
		refSpecs.add(Transport.REFSPEC_PUSH_ALL);
		return this;
	}

	/**
	 * Push all tags under refs/tags/*.
	 *
	 * @return {@code this}
	 */
	public PushCommand setPushTags() {
		refSpecs.add(Transport.REFSPEC_TAGS);
		return this;
	}

	/**
	 * Add a reference to push.
	 *
	 * @param ref
	 *            the source reference. The remote name will match.
	 * @return {@code this}.
	 */
	public PushCommand add(Ref ref) {
		refSpecs.add(new RefSpec(ref.getLeaf().getName()));
		return this;
	}

	/**
	 * Add a reference to push.
	 *
	 * @param nameOrSpec
	 *            any reference name, or a reference specification.
	 * @return {@code this}.
	 * @throws JGitInternalException
	 *             the reference name cannot be resolved.
	 */
	public PushCommand add(String nameOrSpec) {
		if (0 <= nameOrSpec.indexOf(':')) {
			refSpecs.add(new RefSpec(nameOrSpec));
		} else {
			Ref src;
			try {
				src = repo.findRef(nameOrSpec);
			} catch (IOException e) {
				throw new JGitInternalException(
						JGitText.get().exceptionCaughtDuringExecutionOfPushCommand,
						e);
			}
			if (src != null)
				add(src);
		}
		return this;
	}

	/**
	 * Whether to run the push operation as a dry run
	 *
	 * @return the dry run preference for the push operation
	 */
	public boolean isDryRun() {
		return dryRun;
	}

	/**
	 * Sets whether the push operation should be a dry run
	 *
	 * @param dryRun a boolean.
	 * @return {@code this}
	 */
	public PushCommand setDryRun(boolean dryRun) {
		checkCallable();
		this.dryRun = dryRun;
		return this;
	}

	/**
	 * Get the thin-pack preference
	 *
	 * @return the thin-pack preference for push operation
	 */
	public boolean isThin() {
		return thin;
	}

	/**
	 * Set the thin-pack preference for push operation.
	 *
	 * Default setting is Transport.DEFAULT_PUSH_THIN
	 *
	 * @param thinPack
	 *            the thin-pack preference value
	 * @return {@code this}
	 */
	public PushCommand setThin(boolean thinPack) {
		checkCallable();
		this.thin = thinPack;
		return this;
	}

	/**
	 * Whether to use bitmaps for push.
	 *
	 * @return true if push use bitmaps.
	 * @since 6.4
	 */
	public boolean isUseBitmaps() {
		return useBitmaps;
	}

	/**
	 * Set whether to use bitmaps for push.
	 *
	 * Default setting is {@value Transport#DEFAULT_PUSH_USE_BITMAPS}
	 *
	 * @param useBitmaps
	 *            false to disable use of bitmaps for push, true otherwise.
	 * @return {@code this}
	 * @since 6.4
	 */
	public PushCommand setUseBitmaps(boolean useBitmaps) {
		checkCallable();
		this.useBitmaps = useBitmaps;
		return this;
	}

	/**
	 * Whether this push should be executed atomically (all references updated,
	 * or none)
	 *
	 * @return true if all-or-nothing behavior is requested.
	 * @since 4.2
	 */
	public boolean isAtomic() {
		return atomic;
	}

	/**
	 * Requests atomic push (all references updated, or no updates).
	 *
	 * Default setting is false.
	 *
	 * @param atomic
	 *            whether to run the push atomically
	 * @return {@code this}
	 * @since 4.2
	 */
	public PushCommand setAtomic(boolean atomic) {
		checkCallable();
		this.atomic = atomic;
		return this;
	}

	/**
	 * Whether to push forcefully
	 *
	 * @return the force preference for push operation
	 */
	public boolean isForce() {
		return force;
	}

	/**
	 * Sets the force preference for push operation.
	 *
	 * @param force
	 *            whether to push forcefully
	 * @return {@code this}
	 */
	public PushCommand setForce(boolean force) {
		checkCallable();
		this.force = force;
		return this;
	}

	/**
	 * Sets the output stream to write sideband messages to
	 *
	 * @param out
	 *            an {@link java.io.OutputStream}
	 * @return {@code this}
	 * @since 3.0
	 */
	public PushCommand setOutputStream(OutputStream out) {
		this.out = out;
		return this;
	}

	/**
	 * Get push options
	 *
	 * @return the option strings associated with the push operation
	 * @since 4.5
	 */
	public List<String> getPushOptions() {
		return pushOptions;
	}

	/**
	 * Set the option strings associated with the push operation.
	 *
	 * @param pushOptions
	 *            a {@link java.util.List} of push option strings
	 * @return {@code this}
	 * @since 4.5
	 */
	public PushCommand setPushOptions(List<String> pushOptions) {
		this.pushOptions = pushOptions;
		return this;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 63095
Content-Disposition: inline; filename="RebaseCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "3ae7a6c81e28ea56b0c3e06e3885da0bf2563f1f"

/*
 * Copyright (C) 2010, 2013 Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2016, 2021 Laurent Delaigue <laurent.delaigue@obeo.fr> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.MessageFormat;
import java.time.Instant;
import java.time.ZoneOffset;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.api.RebaseResult.Status;
import org.eclipse.jgit.api.ResetCommand.ResetType;
import org.eclipse.jgit.api.errors.CheckoutConflictException;
import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRebaseStepException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.RefAlreadyExistsException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.api.errors.StashApplyFailureException;
import org.eclipse.jgit.api.errors.UnmergedPathsException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.diff.DiffFormatter;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.RevisionSyntaxException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AbbreviatedObjectId;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.CommitConfig;
import org.eclipse.jgit.lib.CommitConfig.CleanupMode;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.RebaseTodoLine;
import org.eclipse.jgit.lib.RebaseTodoLine.Action;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.ContentMergeStrategy;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevSort;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.filter.RevFilter;
import org.eclipse.jgit.submodule.SubmoduleWalk.IgnoreSubmoduleMode;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
import org.eclipse.jgit.util.FileUtils;
import org.eclipse.jgit.util.IO;
import org.eclipse.jgit.util.RawParseUtils;

/**
 * A class used to execute a {@code Rebase} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-rebase.html"
 *      >Git documentation about Rebase</a>
 */
public class RebaseCommand extends GitCommand<RebaseResult> {
	/**
	 * The name of the "rebase-merge" folder for interactive rebases.
	 */
	public static final String REBASE_MERGE = "rebase-merge"; //$NON-NLS-1$

	/**
	 * The name of the "rebase-apply" folder for non-interactive rebases.
	 */
	private static final String REBASE_APPLY = "rebase-apply"; //$NON-NLS-1$

	/**
	 * The name of the "stopped-sha" file
	 */
	public static final String STOPPED_SHA = "stopped-sha"; //$NON-NLS-1$

	private static final String AUTHOR_SCRIPT = "author-script"; //$NON-NLS-1$

	private static final String DONE = "done"; //$NON-NLS-1$

	private static final String GIT_AUTHOR_DATE = "GIT_AUTHOR_DATE"; //$NON-NLS-1$

	private static final String GIT_AUTHOR_EMAIL = "GIT_AUTHOR_EMAIL"; //$NON-NLS-1$

	private static final String GIT_AUTHOR_NAME = "GIT_AUTHOR_NAME"; //$NON-NLS-1$

	private static final String GIT_REBASE_TODO = "git-rebase-todo"; //$NON-NLS-1$

	private static final String HEAD_NAME = "head-name"; //$NON-NLS-1$

	private static final String INTERACTIVE = "interactive"; //$NON-NLS-1$

	private static final String QUIET = "quiet"; //$NON-NLS-1$

	private static final String MESSAGE = "message"; //$NON-NLS-1$

	private static final String ONTO = "onto"; //$NON-NLS-1$

	private static final String ONTO_NAME = "onto_name"; //$NON-NLS-1$

	private static final String PATCH = "patch"; //$NON-NLS-1$

	private static final String REBASE_HEAD = "orig-head"; //$NON-NLS-1$

	/** Pre git 1.7.6 file name for {@link #REBASE_HEAD}. */
	private static final String REBASE_HEAD_LEGACY = "head"; //$NON-NLS-1$

	private static final String AMEND = "amend"; //$NON-NLS-1$

	private static final String MESSAGE_FIXUP = "message-fixup"; //$NON-NLS-1$

	private static final String MESSAGE_SQUASH = "message-squash"; //$NON-NLS-1$

	private static final String AUTOSTASH = "autostash"; //$NON-NLS-1$

	private static final String AUTOSTASH_MSG = "On {0}: autostash"; //$NON-NLS-1$

	/**
	 * The folder containing the hashes of (potentially) rewritten commits when
	 * --rebase-merges is used.
	 * <p>
	 * Native git rebase --merge uses a <em>file</em> of that name to record
	 * commits to copy notes at the end of the whole rebase.
	 * </p>
	 */
	private static final String REWRITTEN = "rewritten"; //$NON-NLS-1$

	/**
	 * File containing the current commit(s) to cherry pick when --rebase-merges
	 * is used.
	 */
	private static final String CURRENT_COMMIT = "current-commit"; //$NON-NLS-1$

	private static final String REFLOG_PREFIX = "rebase:"; //$NON-NLS-1$

	/**
	 * The available operations
	 */
	public enum Operation {
		/**
		 * Initiates rebase
		 */
		BEGIN,
		/**
		 * Continues after a conflict resolution
		 */
		CONTINUE,
		/**
		 * Skips the "current" commit
		 */
		SKIP,
		/**
		 * Aborts and resets the current rebase
		 */
		ABORT,
		/**
		 * Starts processing steps
		 * @since 3.2
		 */
		PROCESS_STEPS;
	}

	private Operation operation = Operation.BEGIN;

	private RevCommit upstreamCommit;

	private String upstreamCommitName;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	private final RevWalk walk;

	private final RebaseState rebaseState;

	private InteractiveHandler interactiveHandler;

	private CommitConfig commitConfig;

	private boolean stopAfterInitialization = false;

	private RevCommit newHead;

	private boolean lastStepWasForward;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private ContentMergeStrategy contentStrategy;

	private boolean preserveMerges = false;

	/**
	 * <p>
	 * Constructor for RebaseCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RebaseCommand(Repository repo) {
		super(repo);
		walk = new RevWalk(repo);
		rebaseState = new RebaseState(repo.getDirectory());
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Rebase} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command. Don't call
	 * this method twice on an instance.
	 */
	@Override
	public RebaseResult call() throws GitAPIException, NoHeadException,
			RefNotFoundException, WrongRepositoryStateException {
		newHead = null;
		lastStepWasForward = false;
		checkCallable();
		checkParameters();
		commitConfig = repo.getConfig().get(CommitConfig.KEY);
		try {
			switch (operation) {
			case ABORT:
				try {
					return abort(RebaseResult.ABORTED_RESULT);
				} catch (IOException ioe) {
					throw new JGitInternalException(ioe.getMessage(), ioe);
				}
			case PROCESS_STEPS:
			case SKIP:
			case CONTINUE:
				String upstreamCommitId = rebaseState.readFile(ONTO);
				try {
					upstreamCommitName = rebaseState.readFile(ONTO_NAME);
				} catch (FileNotFoundException e) {
					// Fall back to commit ID if file doesn't exist (e.g. rebase
					// was started by C Git)
					upstreamCommitName = upstreamCommitId;
				}
				this.upstreamCommit = walk.parseCommit(repo
						.resolve(upstreamCommitId));
				preserveMerges = rebaseState.getRewrittenDir().isDirectory();
				break;
			case BEGIN:
				autoStash();
				if (stopAfterInitialization
						|| !walk.isMergedInto(
								walk.parseCommit(repo.resolve(Constants.HEAD)),
								upstreamCommit)) {
					org.eclipse.jgit.api.Status status = Git.wrap(repo)
							.status().setIgnoreSubmodules(IgnoreSubmoduleMode.ALL).call();
					if (status.hasUncommittedChanges()) {
						List<String> list = new ArrayList<>();
						list.addAll(status.getUncommittedChanges());
						return RebaseResult.uncommittedChanges(list);
					}
				}
				RebaseResult res = initFilesAndRewind();
				if (stopAfterInitialization) {
					return RebaseResult.INTERACTIVE_PREPARED_RESULT;
				}
				if (res != null) {
					if (!autoStashApply()) {
						res = RebaseResult.STASH_APPLY_CONFLICTS_RESULT;
					}
					if (rebaseState.getDir().exists()) {
						FileUtils.delete(rebaseState.getDir(),
								FileUtils.RECURSIVE);
					}
					return res;
				}
			}

			if (monitor.isCancelled())
				return abort(RebaseResult.ABORTED_RESULT);

			if (operation == Operation.CONTINUE) {
				newHead = continueRebase();
				List<RebaseTodoLine> doneLines = repo.readRebaseTodo(
						rebaseState.getPath(DONE), true);
				RebaseTodoLine step = doneLines.get(doneLines.size() - 1);
				if (newHead != null
						&& step.getAction() != Action.PICK) {
					RebaseTodoLine newStep = new RebaseTodoLine(
							step.getAction(),
							AbbreviatedObjectId.fromObjectId(newHead),
							step.getShortMessage());
					RebaseResult result = processStep(newStep, false);
					if (result != null)
						return result;
				}
				File amendFile = rebaseState.getFile(AMEND);
				boolean amendExists = amendFile.exists();
				if (amendExists) {
					FileUtils.delete(amendFile);
				}
				if (newHead == null && !amendExists) {
					// continueRebase() returns null only if no commit was
					// neccessary. This means that no changes where left over
					// after resolving all conflicts. In this case, cgit stops
					// and displays a nice message to the user, telling him to
					// either do changes or skip the commit instead of continue.
					return RebaseResult.NOTHING_TO_COMMIT_RESULT;
				}
			}

			if (operation == Operation.SKIP)
				newHead = checkoutCurrentHead();

			List<RebaseTodoLine> steps = repo.readRebaseTodo(
					rebaseState.getPath(GIT_REBASE_TODO), false);
			if (steps.isEmpty()) {
				return finishRebase(walk.parseCommit(repo.resolve(Constants.HEAD)), false);
			}
			if (isInteractive()) {
				interactiveHandler.prepareSteps(steps);
				repo.writeRebaseTodoFile(rebaseState.getPath(GIT_REBASE_TODO),
						steps, false);
			}
			checkSteps(steps);
			for (RebaseTodoLine step : steps) {
				popSteps(1);
				RebaseResult result = processStep(step, true);
				if (result != null) {
					return result;
				}
			}
			return finishRebase(newHead, lastStepWasForward);
		} catch (CheckoutConflictException cce) {
			return RebaseResult.conflicts(cce.getConflictingPaths());
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	private void autoStash() throws GitAPIException, IOException {
		if (repo.getConfig().getBoolean(ConfigConstants.CONFIG_REBASE_SECTION,
				ConfigConstants.CONFIG_KEY_AUTOSTASH, false)) {
			String message = MessageFormat.format(
							AUTOSTASH_MSG,
							Repository
									.shortenRefName(getHeadName(getHead())));
			RevCommit stashCommit = Git.wrap(repo).stashCreate().setRef(null)
					.setWorkingDirectoryMessage(
							message)
					.call();
			if (stashCommit != null) {
				FileUtils.mkdir(rebaseState.getDir());
				rebaseState.createFile(AUTOSTASH, stashCommit.getName());
			}
		}
	}

	private boolean autoStashApply() throws IOException, GitAPIException {
		boolean success = true;
		if (rebaseState.getFile(AUTOSTASH).exists()) {
			String stash = rebaseState.readFile(AUTOSTASH);
			try (Git git = Git.wrap(repo)) {
				git.stashApply().setStashRef(stash)
						.ignoreRepositoryState(true).setStrategy(strategy)
						.call();
			} catch (StashApplyFailureException e) {
				success = false;
				try (RevWalk rw = new RevWalk(repo)) {
					ObjectId stashId = repo.resolve(stash);
					RevCommit commit = rw.parseCommit(stashId);
					updateStashRef(commit, commit.getAuthorIdent(),
							commit.getShortMessage());
				}
			}
		}
		return success;
	}

	private void updateStashRef(ObjectId commitId, PersonIdent refLogIdent,
			String refLogMessage) throws IOException {
		Ref currentRef = repo.exactRef(Constants.R_STASH);
		RefUpdate refUpdate = repo.updateRef(Constants.R_STASH);
		refUpdate.setNewObjectId(commitId);
		refUpdate.setRefLogIdent(refLogIdent);
		refUpdate.setRefLogMessage(refLogMessage, false);
		refUpdate.setForceRefLog(true);
		if (currentRef != null)
			refUpdate.setExpectedOldObjectId(currentRef.getObjectId());
		else
			refUpdate.setExpectedOldObjectId(ObjectId.zeroId());
		refUpdate.forceUpdate();
	}

	private RebaseResult processStep(RebaseTodoLine step, boolean shouldPick)
			throws IOException, GitAPIException {
		if (Action.COMMENT.equals(step.getAction()))
			return null;
		if (preserveMerges
				&& shouldPick
				&& (Action.EDIT.equals(step.getAction()) || Action.PICK
						.equals(step.getAction()))) {
			writeRewrittenHashes();
		}
		ObjectReader or = repo.newObjectReader();

		Collection<ObjectId> ids = or.resolve(step.getCommit());
		if (ids.size() != 1)
			throw new JGitInternalException(
					JGitText.get().cannotResolveUniquelyAbbrevObjectId);
		RevCommit commitToPick = walk.parseCommit(ids.iterator().next());
		if (shouldPick) {
			if (monitor.isCancelled())
				return RebaseResult.result(Status.STOPPED, commitToPick);
			RebaseResult result = cherryPickCommit(commitToPick);
			if (result != null)
				return result;
		}
		boolean isSquash = false;
		switch (step.getAction()) {
		case PICK:
			return null; // continue rebase process on pick command
		case REWORD:
			String oldMessage = commitToPick.getFullMessage();
			CleanupMode mode = commitConfig.resolve(CleanupMode.DEFAULT, true);
			boolean[] doChangeId = { false };
			String newMessage = editCommitMessage(doChangeId, oldMessage, mode,
					commitConfig.getCommentChar(oldMessage));
			try (Git git = new Git(repo)) {
				newHead = git.commit()
						.setMessage(newMessage)
						.setAmend(true)
						.setNoVerify(true)
						.setInsertChangeId(doChangeId[0])
						.call();
			}
			return null;
		case EDIT:
			rebaseState.createFile(AMEND, commitToPick.name());
			return stop(commitToPick, Status.EDIT);
		case COMMENT:
			break;
		case SQUASH:
			isSquash = true;
			//$FALL-THROUGH$
		case FIXUP:
			resetSoftToParent();
			List<RebaseTodoLine> steps = repo.readRebaseTodo(
					rebaseState.getPath(GIT_REBASE_TODO), false);
			boolean isLast = steps.isEmpty();
			if (!isLast) {
				switch (steps.get(0).getAction()) {
				case FIXUP:
				case SQUASH:
					break;
				default:
					isLast = true;
					break;
				}
			}
			File messageFixupFile = rebaseState.getFile(MESSAGE_FIXUP);
			File messageSquashFile = rebaseState.getFile(MESSAGE_SQUASH);
			if (isSquash && messageFixupFile.exists()) {
				messageFixupFile.delete();
			}
			newHead = doSquashFixup(isSquash, commitToPick, isLast,
					messageFixupFile, messageSquashFile);
		}
		return null;
	}

	private String editCommitMessage(boolean[] doChangeId, String message,
			@NonNull CleanupMode mode, char commentChar) {
		String newMessage;
		CommitConfig.CleanupMode cleanup;
		if (interactiveHandler instanceof InteractiveHandler2) {
			InteractiveHandler2.ModifyResult modification = ((InteractiveHandler2) interactiveHandler)
					.editCommitMessage(message, mode, commentChar);
			newMessage = modification.getMessage();
			cleanup = modification.getCleanupMode();
			if (CleanupMode.DEFAULT.equals(cleanup)) {
				cleanup = mode;
			}
			doChangeId[0] = modification.shouldAddChangeId();
		} else {
			newMessage = interactiveHandler.modifyCommitMessage(message);
			cleanup = CommitConfig.CleanupMode.STRIP;
			doChangeId[0] = false;
		}
		return CommitConfig.cleanText(newMessage, cleanup, commentChar);
	}

	private RebaseResult cherryPickCommit(RevCommit commitToPick)
			throws IOException, GitAPIException, NoMessageException,
			UnmergedPathsException, ConcurrentRefUpdateException,
			WrongRepositoryStateException, NoHeadException {
		try {
			monitor.beginTask(MessageFormat.format(
					JGitText.get().applyingCommit,
					commitToPick.getShortMessage()), ProgressMonitor.UNKNOWN);
			if (preserveMerges) {
				return cherryPickCommitPreservingMerges(commitToPick);
			}
			return cherryPickCommitFlattening(commitToPick);
		} finally {
			monitor.endTask();
		}
	}

	private RebaseResult cherryPickCommitFlattening(RevCommit commitToPick)
			throws IOException, GitAPIException, NoMessageException,
			UnmergedPathsException, ConcurrentRefUpdateException,
			WrongRepositoryStateException, NoHeadException {
		// If the first parent of commitToPick is the current HEAD,
		// we do a fast-forward instead of cherry-pick to avoid
		// unnecessary object rewriting
		newHead = tryFastForward(commitToPick);
		lastStepWasForward = newHead != null;
		if (!lastStepWasForward) {
			// TODO if the content of this commit is already merged
			// here we should skip this step in order to avoid
			// confusing pseudo-changed
			String ourCommitName = getOurCommitName();
			try (Git git = new Git(repo)) {
				CherryPickResult cherryPickResult = git.cherryPick()
					.include(commitToPick)
					.setOurCommitName(ourCommitName)
					.setReflogPrefix(REFLOG_PREFIX)
					.setStrategy(strategy)
					.setContentMergeStrategy(contentStrategy)
					.call();
				switch (cherryPickResult.getStatus()) {
				case FAILED:
					if (operation == Operation.BEGIN) {
						return abort(RebaseResult
								.failed(cherryPickResult.getFailingPaths()));
					}
					return stop(commitToPick, Status.STOPPED);
				case CONFLICTING:
					return stop(commitToPick, Status.STOPPED);
				case OK:
					newHead = cherryPickResult.getNewHead();
				}
			}
		}
		return null;
	}

	private RebaseResult cherryPickCommitPreservingMerges(RevCommit commitToPick)
			throws IOException, GitAPIException, NoMessageException,
			UnmergedPathsException, ConcurrentRefUpdateException,
			WrongRepositoryStateException, NoHeadException {

		writeCurrentCommit(commitToPick);

		List<RevCommit> newParents = getNewParents(commitToPick);
		boolean otherParentsUnchanged = true;
		for (int i = 1; i < commitToPick.getParentCount(); i++)
			otherParentsUnchanged &= newParents.get(i).equals(
					commitToPick.getParent(i));
		// If the first parent of commitToPick is the current HEAD,
		// we do a fast-forward instead of cherry-pick to avoid
		// unnecessary object rewriting
		newHead = otherParentsUnchanged ? tryFastForward(commitToPick) : null;
		lastStepWasForward = newHead != null;
		if (!lastStepWasForward) {
			ObjectId headId = getHead().getObjectId();
			// getHead() checks for null
			assert headId != null;
			if (!AnyObjectId.isEqual(headId, newParents.get(0)))
				checkoutCommit(headId.getName(), newParents.get(0));

			// Use the cherry-pick strategy if all non-first parents did not
			// change. This is different from C Git, which always uses the merge
			// strategy (see below).
			try (Git git = new Git(repo)) {
				if (otherParentsUnchanged) {
					boolean isMerge = commitToPick.getParentCount() > 1;
					String ourCommitName = getOurCommitName();
					CherryPickCommand pickCommand = git.cherryPick()
							.include(commitToPick)
							.setOurCommitName(ourCommitName)
							.setReflogPrefix(REFLOG_PREFIX)
							.setStrategy(strategy)
							.setContentMergeStrategy(contentStrategy);
					if (isMerge) {
						pickCommand.setMainlineParentNumber(1);
						// We write a MERGE_HEAD and later commit explicitly
						pickCommand.setNoCommit(true);
						writeMergeInfo(commitToPick, newParents);
					}
					CherryPickResult cherryPickResult = pickCommand.call();
					switch (cherryPickResult.getStatus()) {
					case FAILED:
						if (operation == Operation.BEGIN) {
							return abort(RebaseResult.failed(
									cherryPickResult.getFailingPaths()));
						}
						return stop(commitToPick, Status.STOPPED);
					case CONFLICTING:
						return stop(commitToPick, Status.STOPPED);
					case OK:
						if (isMerge) {
							// Commit the merge (setup above using
							// writeMergeInfo())
							CommitCommand commit = git.commit();
							commit.setAuthor(commitToPick.getAuthorIdent());
							commit.setReflogComment(REFLOG_PREFIX + " " //$NON-NLS-1$
									+ commitToPick.getShortMessage());
							newHead = commit.call();
						} else
							newHead = cherryPickResult.getNewHead();
						break;
					}
				} else {
					// Use the merge strategy to redo merges, which had some of
					// their non-first parents rewritten
					MergeCommand merge = git.merge()
							.setFastForward(MergeCommand.FastForwardMode.NO_FF)
							.setProgressMonitor(monitor)
							.setStrategy(strategy)
							.setContentMergeStrategy(contentStrategy)
							.setCommit(false);
					for (int i = 1; i < commitToPick.getParentCount(); i++)
						merge.include(newParents.get(i));
					MergeResult mergeResult = merge.call();
					if (mergeResult.getMergeStatus().isSuccessful()) {
						CommitCommand commit = git.commit();
						commit.setAuthor(commitToPick.getAuthorIdent());
						commit.setMessage(commitToPick.getFullMessage());
						commit.setReflogComment(REFLOG_PREFIX + " " //$NON-NLS-1$
								+ commitToPick.getShortMessage());
						newHead = commit.call();
					} else {
						if (operation == Operation.BEGIN && mergeResult
								.getMergeStatus() == MergeResult.MergeStatus.FAILED)
							return abort(RebaseResult
									.failed(mergeResult.getFailingPaths()));
						return stop(commitToPick, Status.STOPPED);
					}
				}
			}
		}
		return null;
	}

	// Prepare MERGE_HEAD and message for the next commit
	private void writeMergeInfo(RevCommit commitToPick,
			List<RevCommit> newParents) throws IOException {
		repo.writeMergeHeads(newParents.subList(1, newParents.size()));
		repo.writeMergeCommitMsg(commitToPick.getFullMessage());
	}

	// Get the rewritten equivalents for the parents of the given commit
	private List<RevCommit> getNewParents(RevCommit commitToPick)
			throws IOException {
		List<RevCommit> newParents = new ArrayList<>();
		for (int p = 0; p < commitToPick.getParentCount(); p++) {
			String parentHash = commitToPick.getParent(p).getName();
			if (!new File(rebaseState.getRewrittenDir(), parentHash).exists())
				newParents.add(commitToPick.getParent(p));
			else {
				String newParent = RebaseState.readFile(
						rebaseState.getRewrittenDir(), parentHash);
				if (newParent.length() == 0)
					newParents.add(walk.parseCommit(repo
							.resolve(Constants.HEAD)));
				else
					newParents.add(walk.parseCommit(ObjectId
							.fromString(newParent)));
			}
		}
		return newParents;
	}

	private void writeCurrentCommit(RevCommit commit) throws IOException {
		RebaseState.appendToFile(rebaseState.getFile(CURRENT_COMMIT),
				commit.name());
	}

	private void writeRewrittenHashes() throws RevisionSyntaxException,
			IOException, RefNotFoundException {
		File currentCommitFile = rebaseState.getFile(CURRENT_COMMIT);
		if (!currentCommitFile.exists())
			return;

		ObjectId headId = getHead().getObjectId();
		// getHead() checks for null
		assert headId != null;
		String head = headId.getName();
		String currentCommits = rebaseState.readFile(CURRENT_COMMIT);
		for (String current : currentCommits.split("\n")) //$NON-NLS-1$
			RebaseState
					.createFile(rebaseState.getRewrittenDir(), current, head);
		FileUtils.delete(currentCommitFile);
	}

	private RebaseResult finishRebase(RevCommit finalHead,
			boolean lastStepIsForward) throws IOException, GitAPIException {
		String headName = rebaseState.readFile(HEAD_NAME);
		updateHead(headName, finalHead, upstreamCommit);
		boolean unstashSuccessful = autoStashApply();
		getRepository().autoGC(monitor);
		FileUtils.delete(rebaseState.getDir(), FileUtils.RECURSIVE);
		if (!unstashSuccessful) {
			return RebaseResult.STASH_APPLY_CONFLICTS_RESULT;
		}
		if (lastStepIsForward || finalHead == null) {
			return RebaseResult.FAST_FORWARD_RESULT;
		}
		return RebaseResult.OK_RESULT;
	}

	private void checkSteps(List<RebaseTodoLine> steps)
			throws InvalidRebaseStepException, IOException {
		if (steps.isEmpty())
			return;
		if (RebaseTodoLine.Action.SQUASH.equals(steps.get(0).getAction())
				|| RebaseTodoLine.Action.FIXUP.equals(steps.get(0).getAction())) {
			if (!rebaseState.getFile(DONE).exists()
					|| rebaseState.readFile(DONE).trim().length() == 0) {
				throw new InvalidRebaseStepException(MessageFormat.format(
						JGitText.get().cannotSquashFixupWithoutPreviousCommit,
						steps.get(0).getAction().name()));
			}
		}

	}

	private RevCommit doSquashFixup(boolean isSquash, RevCommit commitToPick,
			boolean isLast, File messageFixup, File messageSquash)
			throws IOException, GitAPIException {

		if (!messageSquash.exists()) {
			// init squash/fixup sequence
			ObjectId headId = repo.resolve(Constants.HEAD);
			RevCommit previousCommit = walk.parseCommit(headId);

			initializeSquashFixupFile(MESSAGE_SQUASH,
					previousCommit.getFullMessage());
			if (!isSquash) {
				rebaseState.createFile(MESSAGE_FIXUP,
						previousCommit.getFullMessage());
			}
		}
		String currSquashMessage = rebaseState.readFile(MESSAGE_SQUASH);

		int count = parseSquashFixupSequenceCount(currSquashMessage) + 1;

		String content = composeSquashMessage(isSquash,
				commitToPick, currSquashMessage, count);
		rebaseState.createFile(MESSAGE_SQUASH, content);

		return squashIntoPrevious(!messageFixup.exists(), isLast);
	}

	private void resetSoftToParent() throws IOException,
			GitAPIException, CheckoutConflictException {
		Ref ref = repo.exactRef(Constants.ORIG_HEAD);
		ObjectId orig_head = ref == null ? null : ref.getObjectId();
		try (Git git = Git.wrap(repo)) {
			// we have already committed the cherry-picked commit.
			// what we need is to have changes introduced by this
			// commit to be on the index
			// resetting is a workaround
			git.reset().setMode(ResetType.SOFT)
					.setRef("HEAD~1").call(); //$NON-NLS-1$
		} finally {
			// set ORIG_HEAD back to where we started because soft
			// reset moved it
			repo.writeOrigHead(orig_head);
		}
	}

	private RevCommit squashIntoPrevious(boolean sequenceContainsSquash,
			boolean isLast)
			throws IOException, GitAPIException {
		RevCommit retNewHead;
		String commitMessage;
		if (!isLast || sequenceContainsSquash) {
			commitMessage = rebaseState.readFile(MESSAGE_SQUASH);
		} else {
			commitMessage = rebaseState.readFile(MESSAGE_FIXUP);
		}
		try (Git git = new Git(repo)) {
			if (isLast) {
				boolean[] doChangeId = { false };
				if (sequenceContainsSquash) {
					char commentChar = commitMessage.charAt(0);
					commitMessage = editCommitMessage(doChangeId, commitMessage,
							CleanupMode.STRIP, commentChar);
				}
				retNewHead = git.commit()
						.setMessage(commitMessage)
						.setAmend(true)
						.setNoVerify(true)
						.setInsertChangeId(doChangeId[0])
						.call();
				rebaseState.getFile(MESSAGE_SQUASH).delete();
				rebaseState.getFile(MESSAGE_FIXUP).delete();
			} else {
				// Next step is either Squash or Fixup
				retNewHead = git.commit().setMessage(commitMessage)
						.setAmend(true).setNoVerify(true).call();
			}
		}
		return retNewHead;
	}

	@SuppressWarnings("nls")
	private String composeSquashMessage(boolean isSquash,
			RevCommit commitToPick, String currSquashMessage, int count) {
		StringBuilder sb = new StringBuilder();
		String ordinal = getOrdinal(count);
		// currSquashMessage is always non-empty here, and the first character
		// is the comment character used so far.
		char commentChar = currSquashMessage.charAt(0);
		String newMessage = commitToPick.getFullMessage();
		if (!isSquash) {
			sb.append(commentChar).append(" This is a combination of ")
					.append(count).append(" commits.\n");
			// Add the previous message without header (i.e first line)
			sb.append(currSquashMessage
					.substring(currSquashMessage.indexOf('\n') + 1));
			sb.append('\n');
			sb.append(commentChar).append(" The ").append(count).append(ordinal)
					.append(" commit message will be skipped:\n")
					.append(commentChar).append(' ');
			sb.append(newMessage.replaceAll("([\n\r])",
					"$1" + commentChar + ' '));
		} else {
			String currentMessage = currSquashMessage;
			if (commitConfig.isAutoCommentChar()) {
				// Figure out a new comment character taking into account the
				// new message
				String cleaned = CommitConfig.cleanText(currentMessage,
						CommitConfig.CleanupMode.STRIP, commentChar) + '\n'
						+ newMessage;
				char newCommentChar = commitConfig.getCommentChar(cleaned);
				if (newCommentChar != commentChar) {
					currentMessage = replaceCommentChar(currentMessage,
							commentChar, newCommentChar);
					commentChar = newCommentChar;
				}
			}
			sb.append(commentChar).append(" This is a combination of ")
					.append(count).append(" commits.\n");
			// Add the previous message without header (i.e first line)
			sb.append(
					currentMessage.substring(currentMessage.indexOf('\n') + 1));
			sb.append('\n');
			sb.append(commentChar).append(" This is the ").append(count)
					.append(ordinal).append(" commit message:\n");
			sb.append(newMessage);
		}
		return sb.toString();
	}

	private String replaceCommentChar(String message, char oldChar,
			char newChar) {
		// (?m) - Switch on multi-line matching; \h - horizontal whitespace
		return message.replaceAll("(?m)^(\\h*)" + oldChar, "$1" + newChar); //$NON-NLS-1$ //$NON-NLS-2$
	}

	private static String getOrdinal(int count) {
		switch (count % 10) {
		case 1:
			return "st"; //$NON-NLS-1$
		case 2:
			return "nd"; //$NON-NLS-1$
		case 3:
			return "rd"; //$NON-NLS-1$
		default:
			return "th"; //$NON-NLS-1$
		}
	}

	/**
	 * Parse the count from squashed commit messages
	 *
	 * @param currSquashMessage
	 *            the squashed commit message to be parsed
	 * @return the count of squashed messages in the given string
	 */
	static int parseSquashFixupSequenceCount(String currSquashMessage) {
		String regex = "This is a combination of (.*) commits"; //$NON-NLS-1$
		String firstLine = currSquashMessage.substring(0,
				currSquashMessage.indexOf('\n'));
		Pattern pattern = Pattern.compile(regex);
		Matcher matcher = pattern.matcher(firstLine);
		if (!matcher.find())
			throw new IllegalArgumentException();
		return Integer.parseInt(matcher.group(1));
	}

	private void initializeSquashFixupFile(String messageFile,
			String fullMessage) throws IOException {
		char commentChar = commitConfig.getCommentChar(fullMessage);
		rebaseState.createFile(messageFile,
				commentChar + " This is a combination of 1 commits.\n" //$NON-NLS-1$
						+ commentChar + " The first commit's message is:\n" //$NON-NLS-1$
						+ fullMessage);
	}

	private String getOurCommitName() {
		// If onto is different from upstream, this should say "onto", but
		// RebaseCommand doesn't support a different "onto" at the moment.
		String ourCommitName = "Upstream, based on " //$NON-NLS-1$
				+ Repository.shortenRefName(upstreamCommitName);
		return ourCommitName;
	}

	private void updateHead(String headName, RevCommit aNewHead, RevCommit onto)
			throws IOException {
		// point the previous head (if any) to the new commit

		if (headName.startsWith(Constants.R_REFS)) {
			RefUpdate rup = repo.updateRef(headName);
			rup.setNewObjectId(aNewHead);
			rup.setRefLogMessage("rebase finished: " + headName + " onto " //$NON-NLS-1$ //$NON-NLS-2$
					+ onto.getName(), false);
			Result res = rup.forceUpdate();
			switch (res) {
			case FAST_FORWARD:
			case FORCED:
			case NO_CHANGE:
				break;
			default:
				throw new JGitInternalException(
						JGitText.get().updatingHeadFailed);
			}
			rup = repo.updateRef(Constants.HEAD);
			rup.setRefLogMessage("rebase finished: returning to " + headName, //$NON-NLS-1$
					false);
			res = rup.link(headName);
			switch (res) {
			case FAST_FORWARD:
			case FORCED:
			case NO_CHANGE:
				break;
			default:
				throw new JGitInternalException(
						JGitText.get().updatingHeadFailed);
			}
		}
	}

	private RevCommit checkoutCurrentHead() throws IOException, NoHeadException {
		ObjectId headTree = repo.resolve(Constants.HEAD + "^{tree}"); //$NON-NLS-1$
		if (headTree == null)
			throw new NoHeadException(
					JGitText.get().cannotRebaseWithoutCurrentHead);
		DirCache dc = repo.lockDirCache();
		try {
			DirCacheCheckout dco = new DirCacheCheckout(repo, dc, headTree);
			dco.setFailOnConflict(false);
			dco.setProgressMonitor(monitor);
			boolean needsDeleteFiles = dco.checkout();
			if (needsDeleteFiles) {
				List<String> fileList = dco.getToBeDeleted();
				for (String filePath : fileList) {
					File fileToDelete = new File(repo.getWorkTree(), filePath);
					if (repo.getFS().exists(fileToDelete))
						FileUtils.delete(fileToDelete, FileUtils.RECURSIVE
								| FileUtils.RETRY);
				}
			}
		} finally {
			dc.unlock();
		}
		try (RevWalk rw = new RevWalk(repo)) {
			RevCommit commit = rw.parseCommit(repo.resolve(Constants.HEAD));
			return commit;
		}
	}

	/**
	 * @return the commit if we had to do a commit, otherwise null
	 * @throws GitAPIException
	 *             if JGit API failed
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private RevCommit continueRebase() throws GitAPIException, IOException {
		// if there are still conflicts, we throw a specific Exception
		DirCache dc = repo.readDirCache();
		boolean hasUnmergedPaths = dc.hasUnmergedPaths();
		if (hasUnmergedPaths)
			throw new UnmergedPathsException();

		// determine whether we need to commit
		boolean needsCommit;
		try (TreeWalk treeWalk = new TreeWalk(repo)) {
			treeWalk.reset();
			treeWalk.setRecursive(true);
			treeWalk.addTree(new DirCacheIterator(dc));
			ObjectId id = repo.resolve(Constants.HEAD + "^{tree}"); //$NON-NLS-1$
			if (id == null)
				throw new NoHeadException(
						JGitText.get().cannotRebaseWithoutCurrentHead);

			treeWalk.addTree(id);

			treeWalk.setFilter(TreeFilter.ANY_DIFF);

			needsCommit = treeWalk.next();
		}
		if (needsCommit) {
			try (Git git = new Git(repo)) {
				CommitCommand commit = git.commit();
				commit.setMessage(rebaseState.readFile(MESSAGE));
				commit.setAuthor(parseAuthor());
				return commit.call();
			}
		}
		return null;
	}

	private PersonIdent parseAuthor() throws IOException {
		File authorScriptFile = rebaseState.getFile(AUTHOR_SCRIPT);
		byte[] raw;
		try {
			raw = IO.readFully(authorScriptFile);
		} catch (FileNotFoundException notFound) {
			if (authorScriptFile.exists()) {
				throw notFound;
			}
			return null;
		}
		return parseAuthor(raw);
	}

	private RebaseResult stop(RevCommit commitToPick, RebaseResult.Status status)
			throws IOException {
		PersonIdent author = commitToPick.getAuthorIdent();
		String authorScript = toAuthorScript(author);
		rebaseState.createFile(AUTHOR_SCRIPT, authorScript);
		rebaseState.createFile(MESSAGE, commitToPick.getFullMessage());
		if (commitToPick.getParentCount() > 0) {
			ByteArrayOutputStream bos = new ByteArrayOutputStream();
			try (DiffFormatter df = new DiffFormatter(bos)) {
				df.setRepository(repo);
				df.format(commitToPick.getParent(0), commitToPick);
			}
			rebaseState.createFile(PATCH, new String(bos.toByteArray(), UTF_8));
		} else {
			rebaseState.createFile(PATCH, ""); //$NON-NLS-1$
		}
		rebaseState.createFile(STOPPED_SHA,
				repo.newObjectReader()
				.abbreviate(
				commitToPick).name());
		// Remove cherry pick state file created by CherryPickCommand, it's not
		// needed for rebase
		repo.writeCherryPickHead(null);
		return RebaseResult.result(status, commitToPick);
	}

	String toAuthorScript(PersonIdent author) {
		StringBuilder sb = new StringBuilder(100);
		sb.append(GIT_AUTHOR_NAME);
		sb.append("='"); //$NON-NLS-1$
		sb.append(author.getName());
		sb.append("'\n"); //$NON-NLS-1$
		sb.append(GIT_AUTHOR_EMAIL);
		sb.append("='"); //$NON-NLS-1$
		sb.append(author.getEmailAddress());
		sb.append("'\n"); //$NON-NLS-1$
		// the command line uses the "external String"
		// representation for date and timezone
		sb.append(GIT_AUTHOR_DATE);
		sb.append("='"); //$NON-NLS-1$
		sb.append("@"); // @ for time in seconds since 1970 //$NON-NLS-1$
		String externalString = author.toExternalString();
		sb
				.append(externalString.substring(externalString
						.lastIndexOf('>') + 2));
		sb.append("'\n"); //$NON-NLS-1$
		return sb.toString();
	}

	/**
	 * Removes the number of lines given in the parameter from the
	 * <code>git-rebase-todo</code> file but preserves comments and other lines
	 * that can not be parsed as steps
	 *
	 * @param numSteps
	 *            number of steps to remove
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private void popSteps(int numSteps) throws IOException {
		if (numSteps == 0)
			return;
		List<RebaseTodoLine> todoLines = new ArrayList<>();
		List<RebaseTodoLine> poppedLines = new ArrayList<>();

		for (RebaseTodoLine line : repo.readRebaseTodo(
				rebaseState.getPath(GIT_REBASE_TODO), true)) {
			if (poppedLines.size() >= numSteps
					|| RebaseTodoLine.Action.COMMENT.equals(line.getAction()))
				todoLines.add(line);
			else
				poppedLines.add(line);
		}

		repo.writeRebaseTodoFile(rebaseState.getPath(GIT_REBASE_TODO),
				todoLines, false);
		if (!poppedLines.isEmpty()) {
			repo.writeRebaseTodoFile(rebaseState.getPath(DONE), poppedLines,
					true);
		}
	}

	private RebaseResult initFilesAndRewind() throws IOException,
			GitAPIException {
		// we need to store everything into files so that we can implement
		// --skip, --continue, and --abort

		Ref head = getHead();

		ObjectId headId = head.getObjectId();
		if (headId == null) {
			throw new RefNotFoundException(MessageFormat.format(
					JGitText.get().refNotResolved, Constants.HEAD));
		}
		String headName = getHeadName(head);
		RevCommit headCommit = walk.lookupCommit(headId);
		RevCommit upstream = walk.lookupCommit(upstreamCommit.getId());

		if (!isInteractive() && walk.isMergedInto(upstream, headCommit))
			return RebaseResult.UP_TO_DATE_RESULT;
		else if (!isInteractive() && walk.isMergedInto(headCommit, upstream)) {
			// head is already merged into upstream, fast-forward
			monitor.beginTask(MessageFormat.format(
					JGitText.get().resettingHead,
					upstreamCommit.getShortMessage()), ProgressMonitor.UNKNOWN);
			checkoutCommit(headName, upstreamCommit);
			monitor.endTask();

			updateHead(headName, upstreamCommit, upstream);
			return RebaseResult.FAST_FORWARD_RESULT;
		}

		monitor.beginTask(JGitText.get().obtainingCommitsForCherryPick,
				ProgressMonitor.UNKNOWN);

		// create the folder for the meta information
		FileUtils.mkdir(rebaseState.getDir(), true);

		repo.writeOrigHead(headId);
		rebaseState.createFile(REBASE_HEAD, headId.name());
		rebaseState.createFile(REBASE_HEAD_LEGACY, headId.name());
		rebaseState.createFile(HEAD_NAME, headName);
		rebaseState.createFile(ONTO, upstreamCommit.name());
		rebaseState.createFile(ONTO_NAME, upstreamCommitName);
		if (isInteractive() || preserveMerges) {
			// --preserve-merges is an interactive mode for native git. Without
			// this, native git rebase --continue after a conflict would fall
			// into merge mode.
			rebaseState.createFile(INTERACTIVE, ""); //$NON-NLS-1$
		}
		rebaseState.createFile(QUIET, ""); //$NON-NLS-1$

		ArrayList<RebaseTodoLine> toDoSteps = new ArrayList<>();
		toDoSteps.add(new RebaseTodoLine("# Created by EGit: rebasing " + headId.name() //$NON-NLS-1$
						+ " onto " + upstreamCommit.name())); //$NON-NLS-1$
		// determine the commits to be applied
		List<RevCommit> cherryPickList = calculatePickList(headCommit);
		ObjectReader reader = walk.getObjectReader();
		for (RevCommit commit : cherryPickList)
			toDoSteps.add(new RebaseTodoLine(Action.PICK, reader
					.abbreviate(commit), commit.getShortMessage()));
		repo.writeRebaseTodoFile(rebaseState.getPath(GIT_REBASE_TODO),
				toDoSteps, false);

		monitor.endTask();

		// we rewind to the upstream commit
		monitor.beginTask(MessageFormat.format(JGitText.get().rewinding,
				upstreamCommit.getShortMessage()), ProgressMonitor.UNKNOWN);
		boolean checkoutOk = false;
		try {
			checkoutOk = checkoutCommit(headName, upstreamCommit);
		} finally {
			if (!checkoutOk)
				FileUtils.delete(rebaseState.getDir(), FileUtils.RECURSIVE);
		}
		monitor.endTask();

		return null;
	}

	private List<RevCommit> calculatePickList(RevCommit headCommit)
			throws IOException {
		List<RevCommit> cherryPickList = new ArrayList<>();
		try (RevWalk r = new RevWalk(repo)) {
			r.sort(RevSort.TOPO_KEEP_BRANCH_TOGETHER, true);
			r.sort(RevSort.COMMIT_TIME_DESC, true);
			r.markUninteresting(r.lookupCommit(upstreamCommit));
			r.markStart(r.lookupCommit(headCommit));
			Iterator<RevCommit> commitsToUse = r.iterator();
			while (commitsToUse.hasNext()) {
				RevCommit commit = commitsToUse.next();
				if (preserveMerges || commit.getParentCount() <= 1) {
					cherryPickList.add(commit);
				}
			}
		}
		Collections.reverse(cherryPickList);

		if (preserveMerges) {
			// When preserving merges we only rewrite commits which have at
			// least one parent that is itself rewritten (or a merge base)
			File rewrittenDir = rebaseState.getRewrittenDir();
			FileUtils.mkdir(rewrittenDir, false);
			walk.reset();
			walk.setRevFilter(RevFilter.MERGE_BASE);
			walk.markStart(upstreamCommit);
			walk.markStart(headCommit);
			RevCommit base;
			while ((base = walk.next()) != null) {
				RebaseState.createFile(rewrittenDir, base.getName(),
						upstreamCommit.getName());
			}
			Iterator<RevCommit> iterator = cherryPickList.iterator();
			pickLoop: while(iterator.hasNext()){
				RevCommit commit = iterator.next();
				int nOfParents = commit.getParentCount();
				if (nOfParents == 0) {
					// Must be the very first commit in the cherryPickList. We
					// have independent branches.
					new File(rewrittenDir, commit.getName()).createNewFile();
				} else {
					for (int i = 0; i < nOfParents; i++) {
						boolean parentRewritten = new File(rewrittenDir,
								commit.getParent(i).getName()).exists();
						if (parentRewritten) {
							new File(rewrittenDir, commit.getName())
									.createNewFile();
							continue pickLoop;
						}
					}
					// commit is only merged in, needs not be rewritten
					iterator.remove();
				}
			}
		}
		return cherryPickList;
	}

	private static String getHeadName(Ref head) {
		String headName;
		if (head.isSymbolic()) {
			headName = head.getTarget().getName();
		} else {
			ObjectId headId = head.getObjectId();
			// the callers are checking this already
			assert headId != null;
			headName = headId.getName();
		}
		return headName;
	}

	private Ref getHead() throws IOException, RefNotFoundException {
		Ref head = repo.exactRef(Constants.HEAD);
		if (head == null || head.getObjectId() == null)
			throw new RefNotFoundException(MessageFormat.format(
					JGitText.get().refNotResolved, Constants.HEAD));
		return head;
	}

	private boolean isInteractive() {
		return interactiveHandler != null;
	}

	/**
	 * Check if we can fast-forward and returns the new head if it is possible
	 *
	 * @param newCommit
	 *            a {@link org.eclipse.jgit.revwalk.RevCommit} object to check
	 *            if we can fast-forward to.
	 * @return the new head, or null
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 * @throws org.eclipse.jgit.api.errors.GitAPIException
	 *             if a JGit API exception occurred
	 */
	public RevCommit tryFastForward(RevCommit newCommit) throws IOException,
			GitAPIException {
		Ref head = getHead();

		ObjectId headId = head.getObjectId();
		if (headId == null)
			throw new RefNotFoundException(MessageFormat.format(
					JGitText.get().refNotResolved, Constants.HEAD));
		RevCommit headCommit = walk.lookupCommit(headId);
		if (walk.isMergedInto(newCommit, headCommit))
			return newCommit;

		String headName = getHeadName(head);
		return tryFastForward(headName, headCommit, newCommit);
	}

	private RevCommit tryFastForward(String headName, RevCommit oldCommit,
			RevCommit newCommit) throws IOException, GitAPIException {
		boolean tryRebase = false;
		for (RevCommit parentCommit : newCommit.getParents())
			if (parentCommit.equals(oldCommit))
				tryRebase = true;
		if (!tryRebase)
			return null;

		CheckoutCommand co = new CheckoutCommand(repo);
		try {
			co.setProgressMonitor(monitor);
			co.setName(newCommit.name()).call();
			if (headName.startsWith(Constants.R_HEADS)) {
				RefUpdate rup = repo.updateRef(headName);
				rup.setExpectedOldObjectId(oldCommit);
				rup.setNewObjectId(newCommit);
				rup.setRefLogMessage("Fast-forward from " + oldCommit.name() //$NON-NLS-1$
						+ " to " + newCommit.name(), false); //$NON-NLS-1$
				Result res = rup.update(walk);
				switch (res) {
				case FAST_FORWARD:
				case NO_CHANGE:
				case FORCED:
					break;
				default:
					throw new IOException("Could not fast-forward"); //$NON-NLS-1$
				}
			}
			return newCommit;
		} catch (RefAlreadyExistsException | RefNotFoundException
				| InvalidRefNameException | CheckoutConflictException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	private void checkParameters() throws WrongRepositoryStateException {
		if (this.operation == Operation.PROCESS_STEPS) {
			if (rebaseState.getFile(DONE).exists())
				throw new WrongRepositoryStateException(MessageFormat.format(
						JGitText.get().wrongRepositoryState, repo
								.getRepositoryState().name()));
		}
		if (this.operation != Operation.BEGIN) {
			// these operations are only possible while in a rebasing state
			switch (repo.getRepositoryState()) {
			case REBASING_INTERACTIVE:
			case REBASING:
			case REBASING_REBASING:
			case REBASING_MERGE:
				break;
			default:
				throw new WrongRepositoryStateException(MessageFormat.format(
						JGitText.get().wrongRepositoryState, repo
								.getRepositoryState().name()));
			}
		} else
			switch (repo.getRepositoryState()) {
			case SAFE:
				if (this.upstreamCommit == null)
					throw new JGitInternalException(MessageFormat
							.format(JGitText.get().missingRequiredParameter,
									"upstream")); //$NON-NLS-1$
				return;
			default:
				throw new WrongRepositoryStateException(MessageFormat.format(
						JGitText.get().wrongRepositoryState, repo
								.getRepositoryState().name()));

			}
	}

	private RebaseResult abort(RebaseResult result) throws IOException,
			GitAPIException {
		ObjectId origHead = getOriginalHead();
		try {
			String commitId = origHead != null ? origHead.name() : null;
			monitor.beginTask(MessageFormat.format(
					JGitText.get().abortingRebase, commitId),
					ProgressMonitor.UNKNOWN);

			DirCacheCheckout dco;
			if (commitId == null)
				throw new JGitInternalException(
						JGitText.get().abortingRebaseFailedNoOrigHead);
			ObjectId id = repo.resolve(commitId);
			RevCommit commit = walk.parseCommit(id);
			if (result.getStatus().equals(Status.FAILED)) {
				RevCommit head = walk.parseCommit(repo.resolve(Constants.HEAD));
				dco = new DirCacheCheckout(repo, head.getTree(),
						repo.lockDirCache(), commit.getTree());
			} else {
				dco = new DirCacheCheckout(repo, repo.lockDirCache(),
						commit.getTree());
			}
			dco.setFailOnConflict(false);
			dco.checkout();
			walk.close();
		} finally {
			monitor.endTask();
		}
		try {
			String headName = rebaseState.readFile(HEAD_NAME);
				monitor.beginTask(MessageFormat.format(
						JGitText.get().resettingHead, headName),
						ProgressMonitor.UNKNOWN);

			Result res = null;
			RefUpdate refUpdate = repo.updateRef(Constants.HEAD, false);
			refUpdate.setRefLogMessage("rebase: aborting", false); //$NON-NLS-1$
			if (headName.startsWith(Constants.R_REFS)) {
				// update the HEAD
				res = refUpdate.link(headName);
			} else {
				refUpdate.setNewObjectId(origHead);
				res = refUpdate.forceUpdate();

			}
			switch (res) {
			case FAST_FORWARD:
			case FORCED:
			case NO_CHANGE:
				break;
			default:
				throw new JGitInternalException(
						JGitText.get().abortingRebaseFailed);
			}
			boolean unstashSuccessful = autoStashApply();
			// cleanup the files
			FileUtils.delete(rebaseState.getDir(), FileUtils.RECURSIVE);
			repo.writeCherryPickHead(null);
			repo.writeMergeHeads(null);
			if (!unstashSuccessful) {
				return RebaseResult.STASH_APPLY_CONFLICTS_RESULT;
			}
			return result;

		} finally {
			monitor.endTask();
		}
	}

	private ObjectId getOriginalHead() throws IOException {
		try {
			return ObjectId.fromString(rebaseState.readFile(REBASE_HEAD));
		} catch (FileNotFoundException e) {
			try {
				return ObjectId
						.fromString(rebaseState.readFile(REBASE_HEAD_LEGACY));
			} catch (FileNotFoundException ex) {
				return repo.readOrigHead();
			}
		}
	}

	private boolean checkoutCommit(String headName, RevCommit commit)
			throws IOException,
			CheckoutConflictException {
		try {
			RevCommit head = walk.parseCommit(repo.resolve(Constants.HEAD));
			DirCacheCheckout dco = new DirCacheCheckout(repo, head.getTree(),
					repo.lockDirCache(), commit.getTree());
			dco.setFailOnConflict(true);
			dco.setProgressMonitor(monitor);
			try {
				dco.checkout();
			} catch (org.eclipse.jgit.errors.CheckoutConflictException cce) {
				throw new CheckoutConflictException(dco.getConflicts(), cce);
			}
			// update the HEAD
			RefUpdate refUpdate = repo.updateRef(Constants.HEAD, true);
			refUpdate.setExpectedOldObjectId(head);
			refUpdate.setNewObjectId(commit);
			refUpdate.setRefLogMessage(
					"checkout: moving from " //$NON-NLS-1$
							+ Repository.shortenRefName(headName)
							+ " to " + commit.getName(), false); //$NON-NLS-1$
			Result res = refUpdate.forceUpdate();
			switch (res) {
			case FAST_FORWARD:
			case NO_CHANGE:
			case FORCED:
				break;
			default:
				throw new IOException(
						JGitText.get().couldNotRewindToUpstreamCommit);
			}
		} finally {
			walk.close();
			monitor.endTask();
		}
		return true;
	}


	/**
	 * Set upstream {@code RevCommit}
	 *
	 * @param upstream
	 *            the upstream commit
	 * @return {@code this}
	 */
	public RebaseCommand setUpstream(RevCommit upstream) {
		this.upstreamCommit = upstream;
		this.upstreamCommitName = upstream.name();
		return this;
	}

	/**
	 * Set the upstream commit
	 *
	 * @param upstream
	 *            id of the upstream commit
	 * @return {@code this}
	 */
	public RebaseCommand setUpstream(AnyObjectId upstream) {
		try {
			this.upstreamCommit = walk.parseCommit(upstream);
			this.upstreamCommitName = upstream.name();
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().couldNotReadObjectWhileParsingCommit,
					upstream.name()), e);
		}
		return this;
	}

	/**
	 * Set the upstream branch
	 *
	 * @param upstream
	 *            the name of the upstream branch
	 * @return {@code this}
	 * @throws org.eclipse.jgit.api.errors.RefNotFoundException
	 *             if {@code upstream} Ref couldn't be resolved
	 */
	public RebaseCommand setUpstream(String upstream)
			throws RefNotFoundException {
		try {
			ObjectId upstreamId = repo.resolve(upstream);
			if (upstreamId == null)
				throw new RefNotFoundException(MessageFormat.format(JGitText
						.get().refNotResolved, upstream));
			upstreamCommit = walk.parseCommit(repo.resolve(upstream));
			upstreamCommitName = upstream;
			return this;
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	/**
	 * Optionally override the name of the upstream. If this is used, it has to
	 * come after any {@link #setUpstream} call.
	 *
	 * @param upstreamName
	 *            the name which will be used to refer to upstream in conflicts
	 * @return {@code this}
	 */
	public RebaseCommand setUpstreamName(String upstreamName) {
		if (upstreamCommit == null) {
			throw new IllegalStateException(
					"setUpstreamName must be called after setUpstream."); //$NON-NLS-1$
		}
		this.upstreamCommitName = upstreamName;
		return this;
	}

	/**
	 * Set the operation to execute during rebase
	 *
	 * @param operation
	 *            the operation to perform
	 * @return {@code this}
	 */
	public RebaseCommand setOperation(Operation operation) {
		this.operation = operation;
		return this;
	}

	/**
	 * Set progress monitor
	 *
	 * @param monitor
	 *            a progress monitor
	 * @return this instance
	 */
	public RebaseCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Enable interactive rebase
	 * <p>
	 * Does not stop after initialization of interactive rebase. This is
	 * equivalent to
	 * {@link org.eclipse.jgit.api.RebaseCommand#runInteractively(InteractiveHandler, boolean)
	 * runInteractively(handler, false)};
	 * </p>
	 *
	 * @param handler
	 *            the
	 *            {@link org.eclipse.jgit.api.RebaseCommand.InteractiveHandler}
	 *            to use
	 * @return this
	 */
	public RebaseCommand runInteractively(InteractiveHandler handler) {
		return runInteractively(handler, false);
	}

	/**
	 * Enable interactive rebase
	 * <p>
	 * If stopAfterRebaseInteractiveInitialization is {@code true} the rebase
	 * stops after initialization of interactive rebase returning
	 * {@link org.eclipse.jgit.api.RebaseResult#INTERACTIVE_PREPARED_RESULT}
	 * </p>
	 *
	 * @param handler
	 *            the
	 *            {@link org.eclipse.jgit.api.RebaseCommand.InteractiveHandler}
	 *            to use
	 * @param stopAfterRebaseInteractiveInitialization
	 *            if {@code true} the rebase stops after initialization
	 * @return this instance
	 * @since 3.2
	 */
	public RebaseCommand runInteractively(InteractiveHandler handler,
			final boolean stopAfterRebaseInteractiveInitialization) {
		this.stopAfterInitialization = stopAfterRebaseInteractiveInitialization;
		this.interactiveHandler = handler;
		return this;
	}

	/**
	 * Set the <code>MergeStrategy</code>.
	 *
	 * @param strategy
	 *            The merge strategy to use during this rebase operation.
	 * @return {@code this}
	 * @since 3.4
	 */
	public RebaseCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * Sets the content merge strategy to use if the
	 * {@link #setStrategy(MergeStrategy) merge strategy} is "resolve" or
	 * "recursive".
	 *
	 * @param strategy
	 *            the {@link ContentMergeStrategy} to be used
	 * @return {@code this}
	 * @since 5.12
	 */
	public RebaseCommand setContentMergeStrategy(ContentMergeStrategy strategy) {
		this.contentStrategy = strategy;
		return this;
	}

	/**
	 * Whether to preserve merges during rebase
	 *
	 * @param preserve
	 *            {@code true} to re-create merges during rebase. Defaults to
	 *            {@code false}, a flattening rebase.
	 * @return {@code this}
	 * @since 3.5
	 */
	public RebaseCommand setPreserveMerges(boolean preserve) {
		this.preserveMerges = preserve;
		return this;
	}

	/**
	 * Allows to configure the interactive rebase process steps and to modify
	 * commit messages.
	 */
	public interface InteractiveHandler {

		/**
		 * Callback API to modify the initial list of interactive rebase steps.
		 *
		 * @param steps
		 *            initial configuration of interactive rebase
		 */
		void prepareSteps(List<RebaseTodoLine> steps);

		/**
		 * Used for editing commit message on REWORD or SQUASH.
		 *
		 * @param message
		 *            existing commit message
		 * @return new commit message
		 */
		String modifyCommitMessage(String message);
	}

	/**
	 * Extends {@link InteractiveHandler} with an enhanced callback for editing
	 * commit messages.
	 *
	 * @since 6.1
	 */
	public interface InteractiveHandler2 extends InteractiveHandler {

		/**
		 * Callback API for editing a commit message on REWORD or SQUASH.
		 * <p>
		 * The callback gets the comment character currently set, and the
		 * clean-up mode. It can use this information when presenting the
		 * message to the user, and it also has the possibility to clean the
		 * message itself (in which case the returned {@link ModifyResult}
		 * should have {@link CleanupMode#VERBATIM} set lest JGit cleans the
		 * message again). It can also override the initial clean-up mode by
		 * returning clean-up mode other than {@link CleanupMode#DEFAULT}. If it
		 * does return {@code DEFAULT}, the passed-in {@code mode} will be
		 * applied.
		 * </p>
		 *
		 * @param message
		 *            existing commit message
		 * @param mode
		 *            {@link CleanupMode} currently set
		 * @param commentChar
		 *            comment character used
		 * @return a {@link ModifyResult}
		 */
		@NonNull
		ModifyResult editCommitMessage(@NonNull String message,
				@NonNull CleanupMode mode, char commentChar);

		@Override
		default String modifyCommitMessage(String message) {
			// Should actually not be called; but do something reasonable anyway
			ModifyResult result = editCommitMessage(
					message == null ? "" : message, CleanupMode.STRIP, //$NON-NLS-1$
					'#');
			return result.getMessage();
		}

		/**
		 * Describes the result of editing a commit message: the new message,
		 * and how it should be cleaned.
		 */
		interface ModifyResult {

			/**
			 * Retrieves the new commit message.
			 *
			 * @return the message
			 */
			@NonNull
			String getMessage();

			/**
			 * Tells how the message returned by {@link #getMessage()} should be
			 * cleaned.
			 *
			 * @return the {@link CleanupMode}
			 */
			@NonNull
			CleanupMode getCleanupMode();

			/**
			 * Tells whether a Gerrit Change-Id should be computed and added to
			 * the commit message, as with
			 * {@link CommitCommand#setInsertChangeId(boolean)}.
			 *
			 * @return {@code true} if a Change-Id should be handled,
			 *         {@code false} otherwise
			 */
			boolean shouldAddChangeId();
		}
	}

	PersonIdent parseAuthor(byte[] raw) {
		if (raw.length == 0)
			return null;

		Map<String, String> keyValueMap = new HashMap<>();
		for (int p = 0; p < raw.length;) {
			int end = RawParseUtils.nextLF(raw, p);
			if (end == p)
				break;
			int equalsIndex = RawParseUtils.next(raw, p, '=');
			if (equalsIndex == end)
				break;
			String key = RawParseUtils.decode(raw, p, equalsIndex - 1);
			String value = RawParseUtils.decode(raw, equalsIndex + 1, end - 2);
			p = end;
			keyValueMap.put(key, value);
		}

		String name = keyValueMap.get(GIT_AUTHOR_NAME);
		String email = keyValueMap.get(GIT_AUTHOR_EMAIL);
		String time = keyValueMap.get(GIT_AUTHOR_DATE);

		// the time is saved as <seconds since 1970> <timezone offset>
		int timeStart = 0;
		if (time.startsWith("@")) { //$NON-NLS-1$
			timeStart = 1;
		} else {
			timeStart = 0;
		}
		Instant when = Instant.ofEpochSecond(
				Long.parseLong(time.substring(timeStart, time.indexOf(' '))));
		String tzOffsetString = time.substring(time.indexOf(' ') + 1);
		int multiplier = -1;
		if (tzOffsetString.charAt(0) == '+') {
			multiplier = 1;
		}
		int hours = Integer.parseInt(tzOffsetString.substring(1, 3));
		int minutes = Integer.parseInt(tzOffsetString.substring(3, 5));
		// this is in format (+/-)HHMM (hours and minutes)
		ZoneOffset tz = ZoneOffset.ofHoursMinutes(hours * multiplier,
				minutes * multiplier);
		if (name != null && email != null) {
			return new PersonIdent(name, email, when, tz);
		}
		return null;
	}

	private static class RebaseState {

		private final File repoDirectory;
		private File dir;

		public RebaseState(File repoDirectory) {
			this.repoDirectory = repoDirectory;
		}

		public File getDir() {
			if (dir == null) {
				File rebaseApply = new File(repoDirectory, REBASE_APPLY);
				if (rebaseApply.exists()) {
					dir = rebaseApply;
				} else {
					File rebaseMerge = new File(repoDirectory, REBASE_MERGE);
					dir = rebaseMerge;
				}
			}
			return dir;
		}

		/**
		 * @return Directory with rewritten commit hashes, usually exists if
		 *         {@link RebaseCommand#preserveMerges} is true
		 **/
		public File getRewrittenDir() {
			return new File(getDir(), REWRITTEN);
		}

		public String readFile(String name) throws IOException {
			try {
				return readFile(getDir(), name);
			} catch (FileNotFoundException e) {
				if (ONTO_NAME.equals(name)) {
					// Older JGit mistakenly wrote a file "onto-name" instead of
					// "onto_name". Try that wrong name just in case somebody
					// upgraded while a rebase started by JGit was in progress.
					File oldFile = getFile(ONTO_NAME.replace('_', '-'));
					if (oldFile.exists()) {
						return readFile(oldFile);
					}
				}
				throw e;
			}
		}

		public void createFile(String name, String content) throws IOException {
			createFile(getDir(), name, content);
		}

		public File getFile(String name) {
			return new File(getDir(), name);
		}

		public String getPath(String name) {
			return (getDir().getName() + "/" + name); //$NON-NLS-1$
		}

		private static String readFile(File file) throws IOException {
			byte[] content = IO.readFully(file);
			// strip off the last LF
			int end = RawParseUtils.prevLF(content, content.length);
			return RawParseUtils.decode(content, 0, end + 1);
		}

		private static String readFile(File directory, String fileName)
				throws IOException {
			return readFile(new File(directory, fileName));
		}

		private static void createFile(File parentDir, String name,
				String content)
				throws IOException {
			File file = new File(parentDir, name);
			try (FileOutputStream fos = new FileOutputStream(file)) {
				fos.write(content.getBytes(UTF_8));
				fos.write('\n');
			}
		}

		private static void appendToFile(File file, String content)
				throws IOException {
			try (FileOutputStream fos = new FileOutputStream(file, true)) {
				fos.write(content.getBytes(UTF_8));
				fos.write('\n');
			}
		}
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 6831
Content-Disposition: inline; filename="RebaseResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "2aa64df46fb6dcef585c7e59d08d1d2280efdaa9"

/*
 * Copyright (C) 2010, 2013, Mathias Kinzler <mathias.kinzler@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.util.List;
import java.util.Map;

import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.revwalk.RevCommit;

/**
 * The result of a {@link org.eclipse.jgit.api.RebaseCommand} execution
 */
public class RebaseResult {
	/**
	 * The overall status
	 */
	public enum Status {
		/**
		 * Rebase was successful, HEAD points to the new commit
		 */
		OK {
			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Aborted; the original HEAD was restored
		 */
		ABORTED {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Stopped due to a conflict; must either abort or resolve or skip
		 */
		STOPPED {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Stopped for editing in the context of an interactive rebase
		 *
		 * @since 3.2
		 */
		EDIT {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Failed; the original HEAD was restored
		 */
		FAILED {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * The repository contains uncommitted changes and the rebase is not a
		 * fast-forward
		 *
		 * @since 3.2
		 */
		UNCOMMITTED_CHANGES {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Conflicts: checkout of target HEAD failed
		 */
		CONFLICTS {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},
		/**
		 * Already up-to-date
		 */
		UP_TO_DATE {
			@Override
			public boolean isSuccessful() {
				return true;
			}
		},
		/**
		 * Fast-forward, HEAD points to the new commit
		 */
		FAST_FORWARD {
			@Override
			public boolean isSuccessful() {
				return true;
			}
		},

		/**
		 * Continue with nothing left to commit (possibly want skip).
		 *
		 * @since 2.0
		 */
		NOTHING_TO_COMMIT {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},

		/**
		 * Interactive rebase has been prepared
		 * @since 3.2
		 */
		INTERACTIVE_PREPARED {
			@Override
			public boolean isSuccessful() {
				return false;
			}
		},

		/**
		 * Applying stash resulted in conflicts
		 *
		 * @since 3.2
		 */
		STASH_APPLY_CONFLICTS {
			@Override
			public boolean isSuccessful() {
				return true;
			}
		};

		/**
		 * Whether the rebase was successful
		 *
		 * @return whether the status indicates a successful result
		 */
		public abstract boolean isSuccessful();
	}

	static final RebaseResult OK_RESULT = new RebaseResult(Status.OK);

	static final RebaseResult ABORTED_RESULT = new RebaseResult(Status.ABORTED);

	static final RebaseResult UP_TO_DATE_RESULT = new RebaseResult(
			Status.UP_TO_DATE);

	static final RebaseResult FAST_FORWARD_RESULT = new RebaseResult(
			Status.FAST_FORWARD);

	static final RebaseResult NOTHING_TO_COMMIT_RESULT = new RebaseResult(
			Status.NOTHING_TO_COMMIT);

	static final RebaseResult INTERACTIVE_PREPARED_RESULT =  new RebaseResult(
			Status.INTERACTIVE_PREPARED);

	static final RebaseResult STASH_APPLY_CONFLICTS_RESULT = new RebaseResult(
			Status.STASH_APPLY_CONFLICTS);

	private final Status status;

	private final RevCommit currentCommit;

	private Map<String, MergeFailureReason> failingPaths;

	private List<String> conflicts;

	private List<String> uncommittedChanges;

	private RebaseResult(Status status) {
		this.status = status;
		currentCommit = null;
	}

	private RebaseResult(Status status, RevCommit commit) {
		this.status = status;
		currentCommit = commit;
	}

	/**
	 * Create <code>RebaseResult</code>
	 *
	 * @param status
	 *            the overall rebase status
	 * @param commit
	 *            current commit
	 * @return the RebaseResult
	 */
	static RebaseResult result(RebaseResult.Status status,
			RevCommit commit) {
		return new RebaseResult(status, commit);
	}

	/**
	 * Create <code>RebaseResult</code> with status {@link Status#FAILED}
	 *
	 * @param failingPaths
	 *            list of paths causing this rebase to fail
	 * @return the RebaseResult
	 */
	static RebaseResult failed(
			Map<String, MergeFailureReason> failingPaths) {
		RebaseResult result = new RebaseResult(Status.FAILED);
		result.failingPaths = failingPaths;
		return result;
	}

	/**
	 * Create <code>RebaseResult</code> with status {@link Status#CONFLICTS}
	 *
	 * @param conflicts
	 *            the list of conflicting paths
	 * @return the RebaseResult
	 */
	static RebaseResult conflicts(List<String> conflicts) {
		RebaseResult result = new RebaseResult(Status.CONFLICTS);
		result.conflicts = conflicts;
		return result;
	}

	/**
	 * Create <code>RebaseResult</code> with status
	 * {@link Status#UNCOMMITTED_CHANGES}
	 *
	 * @param uncommittedChanges
	 *            the list of paths
	 * @return the RebaseResult
	 */
	static RebaseResult uncommittedChanges(List<String> uncommittedChanges) {
		RebaseResult result = new RebaseResult(Status.UNCOMMITTED_CHANGES);
		result.uncommittedChanges = uncommittedChanges;
		return result;
	}

	/**
	 * Get the status
	 *
	 * @return the overall status
	 */
	public Status getStatus() {
		return status;
	}

	/**
	 * Get the current commit if status is
	 * {@link org.eclipse.jgit.api.RebaseResult.Status#STOPPED}, otherwise
	 * <code>null</code>
	 *
	 * @return the current commit if status is
	 *         {@link org.eclipse.jgit.api.RebaseResult.Status#STOPPED},
	 *         otherwise <code>null</code>
	 */
	public RevCommit getCurrentCommit() {
		return currentCommit;
	}

	/**
	 * Get the list of paths causing this rebase to fail
	 *
	 * @return the list of paths causing this rebase to fail (see
	 *         {@link org.eclipse.jgit.merge.ResolveMerger#getFailingPaths()}
	 *         for details) if status is
	 *         {@link org.eclipse.jgit.api.RebaseResult.Status#FAILED},
	 *         otherwise <code>null</code>
	 */
	public Map<String, MergeFailureReason> getFailingPaths() {
		return failingPaths;
	}

	/**
	 * Get the list of conflicts
	 *
	 * @return the list of conflicts if status is
	 *         {@link org.eclipse.jgit.api.RebaseResult.Status#CONFLICTS}
	 */
	public List<String> getConflicts() {
		return conflicts;
	}

	/**
	 * <p>Getter for the field <code>uncommittedChanges</code>.</p>
	 *
	 * @return the list of uncommitted changes if status is
	 *         {@link org.eclipse.jgit.api.RebaseResult.Status#UNCOMMITTED_CHANGES}
	 * @since 3.2
	 */
	public List<String> getUncommittedChanges() {
		return uncommittedChanges;
	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 2163
Content-Disposition: inline; filename="ReflogCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "a1496490044d11eb16642cee5a3aa75871882470"

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.Collection;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.lib.ReflogReader;
import org.eclipse.jgit.lib.Repository;

/**
 * The reflog command
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-reflog.html"
 *      >Git documentation about reflog</a>
 */
public class ReflogCommand extends GitCommand<Collection<ReflogEntry>> {

	private String ref = Constants.HEAD;

	/**
	 * Constructor for ReflogCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public ReflogCommand(Repository repo) {
		super(repo);
	}

	/**
	 * The ref used for the reflog operation. If no ref is set, the default
	 * value of HEAD will be used.
	 *
	 * @param ref
	 *            the name of the {@code Ref} to log
	 * @return {@code this}
	 */
	public ReflogCommand setRef(String ref) {
		checkCallable();
		this.ref = ref;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Run the reflog command
	 */
	@Override
	public Collection<ReflogEntry> call() throws GitAPIException,
			InvalidRefNameException {
		checkCallable();

		try {
			ReflogReader reader = repo.getRefDatabase().getReflogReader(ref);
			if (reader == null)
				throw new RefNotFoundException(MessageFormat.format(
						JGitText.get().refNotResolved, ref));
			return reader.getReverseEntries();
		} catch (IOException e) {
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().cannotRead, ref), e);
		}
	}

}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 2705
Content-Disposition: inline; filename="RemoteAddCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "9268ff1e19243f5d815892672528b991528d2b7a"

/*
 * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.net.URISyntaxException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.transport.RefSpec;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.URIish;

/**
 * Used to add a new remote.
 *
 * This class has setters for all supported options and arguments of this
 * command and a {@link #call()} method to finally execute the command.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-remote.html" > Git
 *      documentation about Remote</a>
 * @since 4.2
 */
public class RemoteAddCommand extends GitCommand<RemoteConfig> {

	private String name;

	private URIish uri;

	/**
	 * Constructor for RemoteAddCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RemoteAddCommand(Repository repo) {
		super(repo);
	}

	/**
	 * The name of the remote to add.
	 *
	 * @param name
	 *            a remote name
	 * @return this instance
	 * @since 5.0
	 */
	public RemoteAddCommand setName(String name) {
		this.name = name;
		return this;
	}

	/**
	 * The URL of the repository for the new remote.
	 *
	 * @param uri
	 *            an URL for the remote
	 * @return this instance
	 * @since 5.0
	 */
	public RemoteAddCommand setUri(URIish uri) {
		this.uri = uri;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code remote add} command with all the options and
	 * parameters collected by the setter methods of this class.
	 */
	@Override
	public RemoteConfig call() throws GitAPIException {
		checkCallable();

		try {
			StoredConfig config = repo.getConfig();
			RemoteConfig remote = new RemoteConfig(config, name);

			RefSpec refSpec = new RefSpec();
			refSpec = refSpec.setForceUpdate(true);
			refSpec = refSpec.setSourceDestination(Constants.R_HEADS + "*", //$NON-NLS-1$
					Constants.R_REMOTES + name + "/*"); //$NON-NLS-1$
			remote.addFetchRefSpec(refSpec);

			remote.addURI(uri);

			remote.update(config);
			config.save();
			return remote;
		} catch (IOException | URISyntaxException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 1673
Content-Disposition: inline; filename="RemoteListCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "d790e50ea1496ae33858ede80942a7ddc8c52572"

/*
 * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.net.URISyntaxException;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.RemoteConfig;

/**
 * Used to obtain the list of remotes.
 *
 * This class has setters for all supported options and arguments of this
 * command and a {@link #call()} method to finally execute the command.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-remote.html" > Git
 *      documentation about Remote</a>
 * @since 4.2
 */
public class RemoteListCommand extends GitCommand<List<RemoteConfig>> {

	/**
	 * <p>
	 * Constructor for RemoteListCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RemoteListCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code remote} command with all the options and parameters
	 * collected by the setter methods of this class.
	 */
	@Override
	public List<RemoteConfig> call() throws GitAPIException {
		checkCallable();

		try {
			return RemoteConfig.getAllRemoteConfigs(repo.getConfig());
		} catch (URISyntaxException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 2210
Content-Disposition: inline; filename="RemoteRemoveCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "ad553f07a9a9ef8c06134c419af72ac07f09c8e2"

/*
 * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.net.URISyntaxException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.transport.RemoteConfig;

/**
 * Used to remove an existing remote.
 *
 * This class has setters for all supported options and arguments of this
 * command and a {@link #call()} method to finally execute the command.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-remote.html" > Git
 *      documentation about Remote</a>
 * @since 4.2
 */
public class RemoteRemoveCommand extends GitCommand<RemoteConfig> {

	private String remoteName;

	/**
	 * <p>
	 * Constructor for RemoteRemoveCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RemoteRemoveCommand(Repository repo) {
		super(repo);
	}

	/**
	 * The name of the remote to remove.
	 *
	 * @param remoteName
	 *            a remote name
	 * @return {@code this}
	 * @since 5.3
	 */
	public RemoteRemoveCommand setRemoteName(String remoteName) {
		this.remoteName = remoteName;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code remote} command with all the options and parameters
	 * collected by the setter methods of this class.
	 */
	@Override
	public RemoteConfig call() throws GitAPIException {
		checkCallable();

		try {
			StoredConfig config = repo.getConfig();
			RemoteConfig remote = new RemoteConfig(config, remoteName);
			config.unsetSection(ConfigConstants.CONFIG_KEY_REMOTE, remoteName);
			config.save();
			return remote;
		} catch (IOException | URISyntaxException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 3624
Content-Disposition: inline; filename="RemoteSetUrlCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "68ddce361f492d234905965e466b7134e5e8b5e8"

/*
 * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.net.URISyntaxException;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.URIish;

/**
 * Used to change the URL of a remote.
 *
 * This class has setters for all supported options and arguments of this
 * command and a {@link #call()} method to finally execute the command.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-remote.html" > Git
 *      documentation about Remote</a>
 * @since 4.2
 */
public class RemoteSetUrlCommand extends GitCommand<RemoteConfig> {

	/**
	 * The available URI types for the remote.
	 *
	 * @since 5.3
	 */
	public enum UriType {
		/**
		 * Fetch URL for the remote.
		 */
		FETCH,
		/**
		 * Push URL for the remote.
		 */
		PUSH
	}


	private String remoteName;

	private URIish remoteUri;

	private UriType type;

	/**
	 * <p>
	 * Constructor for RemoteSetUrlCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RemoteSetUrlCommand(Repository repo) {
		super(repo);
	}

	/**
	 * The name of the remote to change the URL for.
	 *
	 * @param remoteName
	 *            a remote remoteName
	 * @return {@code this}
	 * @since 5.3
	 */
	public RemoteSetUrlCommand setRemoteName(String remoteName) {
		this.remoteName = remoteName;
		return this;
	}

	/**
	 * The new URL for the remote.
	 *
	 * @param remoteUri
	 *            an URL for the remote
	 * @return {@code this}
	 * @since 5.3
	 */
	public RemoteSetUrlCommand setRemoteUri(URIish remoteUri) {
		this.remoteUri = remoteUri;
		return this;
	}

	/**
	 * Whether to change the push URL of the remote instead of the fetch URL.
	 *
	 * @param type
	 *            the <code>UriType</code> value to set
	 * @return {@code this}
	 * @since 5.3
	 */
	public RemoteSetUrlCommand setUriType(UriType type) {
		this.type = type;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code remote} command with all the options and parameters
	 * collected by the setter methods of this class.
	 */
	@Override
	public RemoteConfig call() throws GitAPIException {
		checkCallable();

		try {
			StoredConfig config = repo.getConfig();
			RemoteConfig remote = new RemoteConfig(config, remoteName);
			if (type == UriType.PUSH) {
				List<URIish> uris = remote.getPushURIs();
				if (uris.size() > 1) {
					throw new JGitInternalException(
							"remote.newtest.pushurl has multiple values"); //$NON-NLS-1$
				} else if (uris.size() == 1) {
					remote.removePushURI(uris.get(0));
				}
				remote.addPushURI(remoteUri);
			} else {
				List<URIish> uris = remote.getURIs();
				if (uris.size() > 1) {
					throw new JGitInternalException(
							"remote.newtest.url has multiple values"); //$NON-NLS-1$
				} else if (uris.size() == 1) {
					remote.removeURI(uris.get(0));
				}
				remote.addURI(remoteUri);
			}

			remote.update(config);
			config.save();
			return remote;
		} catch (IOException | URISyntaxException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 2927
Content-Disposition: inline; filename="RemoveNoteCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "c65cbf160f13b75855b93a6739ac908586f00acd"

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.Note;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Remove object notes.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-notes.html"
 *      >Git documentation about Notes</a>
 */
public class RemoveNoteCommand extends GitCommand<Note> {

	private RevObject id;

	private String notesRef = Constants.R_NOTES_COMMITS;

	/**
	 * <p>
	 * Constructor for RemoveNoteCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RemoveNoteCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Note call() throws GitAPIException {
		checkCallable();
		try (RevWalk walk = new RevWalk(repo);
				ObjectInserter inserter = repo.newObjectInserter()) {
			NoteMap map = NoteMap.newEmptyMap();
			RevCommit notesCommit = null;
			Ref ref = repo.exactRef(notesRef);
			// if we have a notes ref, use it
			if (ref != null) {
				notesCommit = walk.parseCommit(ref.getObjectId());
				map = NoteMap.read(walk.getObjectReader(), notesCommit);
			}
			map.set(id, null, inserter);
			AddNoteCommand.commitNoteMap(repo, notesRef, walk, map, notesCommit,
					inserter,
					"Notes removed by 'git notes remove'"); //$NON-NLS-1$
			return map.getNote(id);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * Sets the object id of object you want to remove a note
	 *
	 * @param id
	 *            the {@link org.eclipse.jgit.revwalk.RevObject} to remove a
	 *            note from.
	 * @return {@code this}
	 */
	public RemoveNoteCommand setObjectId(RevObject id) {
		checkCallable();
		this.id = id;
		return this;
	}

	/**
	 * Set the name of the <code>Ref</code> to remove a note from.
	 *
	 * @param notesRef
	 *            the {@code Ref} to read notes from. Note, the default value of
	 *            {@link org.eclipse.jgit.lib.Constants#R_NOTES_COMMITS} will be
	 *            used if nothing is set
	 * @return {@code this}
	 * @see Constants#R_NOTES_COMMITS
	 */
	public RemoveNoteCommand setNotesRef(String notesRef) {
		checkCallable();
		this.notesRef = notesRef;
		return this;
	}

}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 7102
Content-Disposition: inline; filename="RenameBranchCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "029f9d02d633b2420d42ad44306e4767c6054c2e"

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.Arrays;

import org.eclipse.jgit.api.errors.DetachedHeadException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.RefAlreadyExistsException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefRename;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;

/**
 * Used to rename branches.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-branch.html"
 *      >Git documentation about Branch</a>
 */
public class RenameBranchCommand extends GitCommand<Ref> {
	private String oldName;

	private String newName;

	/**
	 * <p>
	 * Constructor for RenameBranchCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RenameBranchCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Ref call() throws GitAPIException, RefNotFoundException, InvalidRefNameException,
			RefAlreadyExistsException, DetachedHeadException {
		checkCallable();

		if (newName == null) {
			throw new InvalidRefNameException(MessageFormat.format(JGitText
					.get().branchNameInvalid, "<null>")); //$NON-NLS-1$
		}
		try {
			String fullOldName;
			String fullNewName;
			if (oldName != null) {
				// Don't just rely on findRef -- if there are local and remote
				// branches with the same name, and oldName is a short name, it
				// does not uniquely identify the ref and we might end up
				// renaming the wrong branch or finding a tag instead even
				// if a unique branch for the name exists!
				//
				// OldName may be a either a short or a full name.
				Ref ref = repo.exactRef(oldName);
				if (ref == null) {
					ref = repo.exactRef(Constants.R_HEADS + oldName);
					Ref ref2 = repo.exactRef(Constants.R_REMOTES + oldName);
					if (ref != null && ref2 != null) {
						throw new RefNotFoundException(MessageFormat.format(
								JGitText.get().renameBranchFailedAmbiguous,
								oldName, ref.getName(), ref2.getName()));
					} else if (ref == null) {
						if (ref2 != null) {
							ref = ref2;
						} else {
							throw new RefNotFoundException(MessageFormat.format(
									JGitText.get().refNotResolved, oldName));
						}
					}
				}
				fullOldName = ref.getName();
			} else {
				fullOldName = repo.getFullBranch();
				if (fullOldName == null) {
					throw new NoHeadException(
							JGitText.get().invalidRepositoryStateNoHead);
				}
				if (ObjectId.isId(fullOldName))
					throw new DetachedHeadException();
			}

			if (fullOldName.startsWith(Constants.R_REMOTES)) {
				fullNewName = Constants.R_REMOTES + newName;
			} else if (fullOldName.startsWith(Constants.R_HEADS)) {
				fullNewName = Constants.R_HEADS + newName;
			} else {
				throw new RefNotFoundException(MessageFormat.format(
						JGitText.get().renameBranchFailedNotABranch,
						fullOldName));
			}

			if (!Repository.isValidRefName(fullNewName)) {
				throw new InvalidRefNameException(MessageFormat.format(JGitText
						.get().branchNameInvalid, fullNewName));
			}
			if (repo.exactRef(fullNewName) != null) {
				throw new RefAlreadyExistsException(MessageFormat
						.format(JGitText.get().refAlreadyExists1, fullNewName));
			}
			RefRename rename = repo.renameRef(fullOldName, fullNewName);
			Result renameResult = rename.rename();

			setCallable(false);

			if (Result.RENAMED != renameResult) {
				throw new JGitInternalException(MessageFormat.format(JGitText
						.get().renameBranchUnexpectedResult, renameResult
						.name()));
			}
			if (fullNewName.startsWith(Constants.R_HEADS)) {
				String shortOldName = fullOldName.substring(Constants.R_HEADS
						.length());
				final StoredConfig repoConfig = repo.getConfig();
				// Copy all configuration values over to the new branch
				for (String name : repoConfig.getNames(
						ConfigConstants.CONFIG_BRANCH_SECTION, shortOldName)) {
					String[] values = repoConfig.getStringList(
							ConfigConstants.CONFIG_BRANCH_SECTION,
							shortOldName, name);
					if (values.length == 0) {
						continue;
					}
					// Keep any existing values already configured for the
					// new branch name
					String[] existing = repoConfig.getStringList(
							ConfigConstants.CONFIG_BRANCH_SECTION, newName,
							name);
					if (existing.length > 0) {
						String[] newValues = new String[values.length
								+ existing.length];
						System.arraycopy(existing, 0, newValues, 0,
								existing.length);
						System.arraycopy(values, 0, newValues, existing.length,
								values.length);
						values = newValues;
					}

					repoConfig.setStringList(
							ConfigConstants.CONFIG_BRANCH_SECTION, newName,
							name, Arrays.asList(values));
				}
				repoConfig.unsetSection(ConfigConstants.CONFIG_BRANCH_SECTION,
						shortOldName);
				repoConfig.save();
			}

			Ref resultRef = repo.exactRef(fullNewName);
			if (resultRef == null) {
				throw new JGitInternalException(
						JGitText.get().renameBranchFailedUnknownReason);
			}
			return resultRef;
		} catch (IOException ioe) {
			throw new JGitInternalException(ioe.getMessage(), ioe);
		}
	}

	/**
	 * Sets the new short name of the branch.
	 * <p>
	 * The full name is constructed using the prefix of the branch to be renamed
	 * defined by either {@link #setOldName(String)} or HEAD. If that old branch
	 * is a local branch, the renamed branch also will be, and if the old branch
	 * is a remote branch, so will be the renamed branch.
	 * </p>
	 *
	 * @param newName
	 *            the new name
	 * @return this instance
	 */
	public RenameBranchCommand setNewName(String newName) {
		checkCallable();
		this.newName = newName;
		return this;
	}

	/**
	 * Sets the old name of the branch.
	 * <p>
	 * {@code oldName} may be a short or a full name. Using a full name is
	 * recommended to unambiguously identify the branch to be renamed.
	 * </p>
	 *
	 * @param oldName
	 *            the name of the branch to rename; if not set, the currently
	 *            checked out branch (if any) will be renamed
	 * @return this instance
	 */
	public RenameBranchCommand setOldName(String oldName) {
		checkCallable();
		this.oldName = oldName;
		return this;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 12587
Content-Disposition: inline; filename="ResetCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "47145a0563de988bb4b808974c6277b6b3dd8251"

/*
 * Copyright (C) 2011-2013, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;

import org.eclipse.jgit.api.errors.CheckoutConflictException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuildIterator;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.AbstractTreeIterator;
import org.eclipse.jgit.treewalk.CanonicalTreeParser;
import org.eclipse.jgit.treewalk.EmptyTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * A class used to execute a {@code Reset} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-reset.html"
 *      >Git documentation about Reset</a>
 */
public class ResetCommand extends GitCommand<Ref> {

	/**
	 * Kind of reset
	 */
	public enum ResetType {
		/**
		 * Just change the ref, the index and workdir are not changed.
		 */
		SOFT,

		/**
		 * Change the ref and the index, the workdir is not changed.
		 */
		MIXED,

		/**
		 * Change the ref, the index and the workdir
		 */
		HARD,

		/**
		 * Resets the index and updates the files in the working tree that are
		 * different between respective commit and HEAD, but keeps those which
		 * are different between the index and working tree
		 */
		MERGE, // TODO not implemented yet

		/**
		 * Change the ref, the index and the workdir that are different between
		 * respective commit and HEAD
		 */
		KEEP // TODO not implemented yet
	}

	// We need to be able to distinguish whether the caller set the ref
	// explicitly or not, so we apply the default (HEAD) only later.
	private String ref = null;

	private ResetType mode;

	private Collection<String> filepaths = new ArrayList<>();

	private boolean isReflogDisabled;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * <p>
	 * Constructor for ResetCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public ResetCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Reset} command. Each instance of this class should
	 * only be used for one invocation of the command. Don't call this method
	 * twice on an instance.
	 */
	@Override
	public Ref call() throws GitAPIException, CheckoutConflictException {
		checkCallable();

		try {
			RepositoryState state = repo.getRepositoryState();
			final boolean merging = state.equals(RepositoryState.MERGING)
					|| state.equals(RepositoryState.MERGING_RESOLVED);
			final boolean cherryPicking = state
					.equals(RepositoryState.CHERRY_PICKING)
					|| state.equals(RepositoryState.CHERRY_PICKING_RESOLVED);
			final boolean reverting = state.equals(RepositoryState.REVERTING)
					|| state.equals(RepositoryState.REVERTING_RESOLVED);

			final ObjectId commitId = resolveRefToCommitId();
			// When ref is explicitly specified, it has to resolve
			if (ref != null && commitId == null) {
				// @TODO throw an InvalidRefNameException. We can't do that
				// now because this would break the API
				throw new JGitInternalException(MessageFormat
						.format(JGitText.get().invalidRefName, ref));
			}

			final ObjectId commitTree;
			if (commitId != null)
				commitTree = parseCommit(commitId).getTree();
			else
				commitTree = null;

			if (!filepaths.isEmpty()) {
				// reset [commit] -- paths
				resetIndexForPaths(commitTree);
				setCallable(false);
				return repo.exactRef(Constants.HEAD);
			}

			final Ref result;
			if (commitId != null) {
				// write the ref
				final RefUpdate ru = repo.updateRef(Constants.HEAD);
				ru.setNewObjectId(commitId);

				String refName = Repository.shortenRefName(getRefOrHEAD());
				if (isReflogDisabled) {
					ru.disableRefLog();
				} else {
					String message = refName + ": updating " + Constants.HEAD; //$NON-NLS-1$
					ru.setRefLogMessage(message, false);
				}
				if (ru.forceUpdate() == RefUpdate.Result.LOCK_FAILURE)
					throw new JGitInternalException(MessageFormat.format(
							JGitText.get().cannotLock, ru.getName()));

				ObjectId origHead = ru.getOldObjectId();
				if (origHead != null)
					repo.writeOrigHead(origHead);
			}
			result = repo.exactRef(Constants.HEAD);

			if (mode == null)
				mode = ResetType.MIXED;

			switch (mode) {
				case HARD:
					checkoutIndex(commitTree);
					break;
				case MIXED:
					resetIndex(commitTree);
					break;
				case SOFT: // do nothing, only the ref was changed
					break;
				case KEEP: // TODO
				case MERGE: // TODO
					throw new UnsupportedOperationException();

			}

			if (mode != ResetType.SOFT) {
				if (merging)
					resetMerge();
				else if (cherryPicking)
					resetCherryPick();
				else if (reverting)
					resetRevert();
				else if (repo.readSquashCommitMsg() != null)
					repo.writeSquashCommitMsg(null /* delete */);
			}

			setCallable(false);
			return result;
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().exceptionCaughtDuringExecutionOfResetCommand,
					e.getMessage()), e);
		}
	}

	private RevCommit parseCommit(ObjectId commitId) {
		try (RevWalk rw = new RevWalk(repo)) {
			return rw.parseCommit(commitId);
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().cannotReadCommit, commitId.toString()), e);
		}
	}

	private ObjectId resolveRefToCommitId() {
		try {
			return repo.resolve(getRefOrHEAD() + "^{commit}"); //$NON-NLS-1$
		} catch (IOException e) {
			throw new JGitInternalException(
					MessageFormat.format(JGitText.get().cannotRead, getRefOrHEAD()),
					e);
		}
	}

	/**
	 * Set the name of the <code>Ref</code> to reset to
	 *
	 * @param ref
	 *            the ref to reset to, defaults to HEAD if not specified
	 * @return this instance
	 */
	public ResetCommand setRef(String ref) {
		this.ref = ref;
		return this;
	}

	/**
	 * Set the reset mode
	 *
	 * @param mode
	 *            the mode of the reset command
	 * @return this instance
	 */
	public ResetCommand setMode(ResetType mode) {
		if (!filepaths.isEmpty())
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().illegalCombinationOfArguments,
					"[--mixed | --soft | --hard]", "<paths>...")); //$NON-NLS-1$ //$NON-NLS-2$
		this.mode = mode;
		return this;
	}

	/**
	 * Repository relative path of file or directory to reset
	 *
	 * @param path
	 *            repository-relative path of file/directory to reset (with
	 *            <code>/</code> as separator)
	 * @return this instance
	 */
	public ResetCommand addPath(String path) {
		if (mode != null)
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().illegalCombinationOfArguments, "<paths>...", //$NON-NLS-1$
					"[--mixed | --soft | --hard]")); //$NON-NLS-1$
		filepaths.add(path);
		return this;
	}

	/**
	 * Whether to disable reflog
	 *
	 * @param disable
	 *            if {@code true} disables writing a reflog entry for this reset
	 *            command
	 * @return this instance
	 * @since 4.5
	 */
	public ResetCommand disableRefLog(boolean disable) {
		this.isReflogDisabled = disable;
		return this;
	}

	/**
	 * Whether reflog is disabled
	 *
	 * @return {@code true} if writing reflog is disabled for this reset command
	 * @since 4.5
	 */
	public boolean isReflogDisabled() {
		return this.isReflogDisabled;
	}

	private String getRefOrHEAD() {
		if (ref != null) {
			return ref;
		}
		return Constants.HEAD;
	}

	/**
	 * The progress monitor associated with the reset operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 * @since 4.11
	 */
	public ResetCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	private void resetIndexForPaths(ObjectId commitTree) {
		DirCache dc = null;
		try (TreeWalk tw = new TreeWalk(repo)) {
			dc = repo.lockDirCache();
			DirCacheBuilder builder = dc.builder();

			tw.addTree(new DirCacheBuildIterator(builder));
			if (commitTree != null)
				tw.addTree(commitTree);
			else
				tw.addTree(new EmptyTreeIterator());
			tw.setFilter(PathFilterGroup.createFromStrings(filepaths));
			tw.setRecursive(true);

			while (tw.next()) {
				final CanonicalTreeParser tree = tw.getTree(1,
						CanonicalTreeParser.class);
				// only keep file in index if it's in the commit
				if (tree != null) {
				    // revert index to commit
					DirCacheEntry entry = new DirCacheEntry(tw.getRawPath());
					entry.setFileMode(tree.getEntryFileMode());
					entry.setObjectId(tree.getEntryObjectId());
					builder.add(entry);
				}
			}

			builder.commit();
		} catch (IOException e) {
			throw new RuntimeException(e);
		} finally {
			if (dc != null)
				dc.unlock();
		}
	}

	private void resetIndex(ObjectId commitTree) throws IOException {
		DirCache dc = repo.lockDirCache();
		try (TreeWalk walk = new TreeWalk(repo)) {
			DirCacheBuilder builder = dc.builder();

			if (commitTree != null)
				walk.addTree(commitTree);
			else
				walk.addTree(new EmptyTreeIterator());
			walk.addTree(new DirCacheIterator(dc));
			walk.setRecursive(true);

			while (walk.next()) {
				AbstractTreeIterator cIter = walk.getTree(0,
						AbstractTreeIterator.class);
				if (cIter == null) {
					// Not in commit, don't add to new index
					continue;
				}

				final DirCacheEntry entry = new DirCacheEntry(walk.getRawPath());
				entry.setFileMode(cIter.getEntryFileMode());
				entry.setObjectIdFromRaw(cIter.idBuffer(), cIter.idOffset());

				DirCacheIterator dcIter = walk.getTree(1,
						DirCacheIterator.class);
				if (dcIter != null && dcIter.idEqual(cIter)) {
					DirCacheEntry indexEntry = dcIter.getDirCacheEntry();
					entry.setLastModified(indexEntry.getLastModifiedInstant());
					entry.setLength(indexEntry.getLength());
				}

				builder.add(entry);
			}

			builder.commit();
		} finally {
			dc.unlock();
		}
	}

	private void checkoutIndex(ObjectId commitTree) throws IOException,
			GitAPIException {
		DirCache dc = repo.lockDirCache();
		try {
			DirCacheCheckout checkout = new DirCacheCheckout(repo, dc,
					commitTree);
			checkout.setFailOnConflict(false);
			checkout.setProgressMonitor(monitor);
			try {
				checkout.checkout();
			} catch (org.eclipse.jgit.errors.CheckoutConflictException cce) {
				throw new CheckoutConflictException(checkout.getConflicts(),
						cce);
			}
		} finally {
			dc.unlock();
		}
	}

	private void resetMerge() throws IOException {
		repo.writeMergeHeads(null);
		repo.writeMergeCommitMsg(null);
	}

	private void resetCherryPick() throws IOException {
		repo.writeCherryPickHead(null);
		repo.writeMergeCommitMsg(null);
	}

	private void resetRevert() throws IOException {
		repo.writeRevertHead(null);
		repo.writeMergeCommitMsg(null);
	}

	@SuppressWarnings("nls")
	@Override
	public String toString() {
		return "ResetCommand [repo=" + repo + ", ref=" + ref + ", mode=" + mode
				+ ", isReflogDisabled=" + isReflogDisabled + ", filepaths="
				+ filepaths + "]";
	}

}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 11055
Content-Disposition: inline; filename="RevertCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "6643c83662757176f129cfa2fe51e9683202cd0b"

/*
 * Copyright (C) 2010, 2024 Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.OBJECT_ID_ABBREV_STRING_LENGTH;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.eclipse.jgit.api.MergeResult.MergeStatus;
import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.MultipleParentsNotAllowedException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.UnmergedPathsException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.CommitConfig;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectIdRef;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Ref.Storage;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.MergeMessageFormatter;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.merge.ResolveMerger;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.FileTreeIterator;

/**
 * A class used to execute a {@code revert} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-revert.html"
 *      >Git documentation about revert</a>
 */
public class RevertCommand extends GitCommand<RevCommit> {
	private List<Ref> commits = new ArrayList<>();

	private String ourCommitName = null;

	private boolean insertChangeId;

	private List<Ref> revertedRefs = new ArrayList<>();

	private MergeResult failingResult;

	private List<String> unmergedPaths;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private ProgressMonitor monitor = NullProgressMonitor.INSTANCE;

	/**
	 * <p>
	 * Constructor for RevertCommand.
	 * </p>
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected RevertCommand(Repository repo) {
		super(repo);
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code revert} command with all the options and parameters
	 * collected by the setter methods (e.g. {@link #include(Ref)} of this
	 * class. Each instance of this class should only be used for one invocation
	 * of the command. Don't call this method twice on an instance.
	 */
	@Override
	public RevCommit call() throws NoMessageException, UnmergedPathsException,
			ConcurrentRefUpdateException, WrongRepositoryStateException,
			GitAPIException {
		RevCommit newHead = null;
		checkCallable();

		try (RevWalk revWalk = new RevWalk(repo)) {

			// get the head commit
			Ref headRef = repo.exactRef(Constants.HEAD);
			if (headRef == null)
				throw new NoHeadException(
						JGitText.get().commitOnRepoWithoutHEADCurrentlyNotSupported);
			RevCommit headCommit = revWalk.parseCommit(headRef.getObjectId());

			newHead = headCommit;

			// loop through all refs to be reverted
			for (Ref src : commits) {
				// get the commit to be reverted
				// handle annotated tags
				ObjectId srcObjectId = src.getPeeledObjectId();
				if (srcObjectId == null)
					srcObjectId = src.getObjectId();
				RevCommit srcCommit = revWalk.parseCommit(srcObjectId);

				// get the parent of the commit to revert
				if (srcCommit.getParentCount() != 1)
					throw new MultipleParentsNotAllowedException(
							MessageFormat.format(
									JGitText.get().canOnlyRevertCommitsWithOneParent,
									srcCommit.name(),
									Integer.valueOf(srcCommit.getParentCount())));

				RevCommit srcParent = srcCommit.getParent(0);
				revWalk.parseHeaders(srcParent);

				String ourName = calculateOurName(headRef);
				String revertName = srcCommit.getId()
						.abbreviate(OBJECT_ID_ABBREV_STRING_LENGTH).name() + ' '
						+ srcCommit.getShortMessage();

				ResolveMerger merger = (ResolveMerger) strategy.newMerger(repo);
				merger.setWorkingTreeIterator(new FileTreeIterator(repo));
				merger.setBase(srcCommit.getTree());
				merger.setCommitNames(new String[] {
						"BASE", ourName, revertName }); //$NON-NLS-1$

				String shortMessage = "Revert \"" //$NON-NLS-1$
						+ srcCommit.getFirstMessageLine() + '"';
				String newMessage = shortMessage + "\n\n" //$NON-NLS-1$
						+ "This reverts commit " + srcCommit.getId().getName() //$NON-NLS-1$
						+ ".\n"; //$NON-NLS-1$
				if (merger.merge(headCommit, srcParent)) {
					if (!merger.getModifiedFiles().isEmpty()) {
						repo.fireEvent(new WorkingTreeModifiedEvent(
								merger.getModifiedFiles(), null));
					}
					if (AnyObjectId.isEqual(headCommit.getTree().getId(),
							merger.getResultTreeId()))
						continue;
					DirCacheCheckout dco = new DirCacheCheckout(repo,
							headCommit.getTree(), repo.lockDirCache(),
							merger.getResultTreeId());
					dco.setFailOnConflict(true);
					dco.setProgressMonitor(monitor);
					dco.checkout();
					try (Git git = new Git(getRepository())) {
						newHead = git.commit().setMessage(newMessage)
								.setInsertChangeId(insertChangeId)
								.setReflogComment("revert: " + shortMessage) //$NON-NLS-1$
								.call();
					}
					revertedRefs.add(src);
					headCommit = newHead;
				} else {
					unmergedPaths = merger.getUnmergedPaths();
					Map<String, MergeFailureReason> failingPaths = merger
							.getFailingPaths();
					if (failingPaths != null)
						failingResult = new MergeResult(null,
								merger.getBaseCommitId(),
								new ObjectId[] { headCommit.getId(),
										srcParent.getId() },
								MergeStatus.FAILED, strategy,
								merger.getMergeResults(), failingPaths, null);
					else
						failingResult = new MergeResult(null,
								merger.getBaseCommitId(),
								new ObjectId[] { headCommit.getId(),
										srcParent.getId() },
								MergeStatus.CONFLICTING, strategy,
								merger.getMergeResults(), failingPaths, null);
					if (!merger.failed() && !unmergedPaths.isEmpty()) {
						CommitConfig config = repo.getConfig()
								.get(CommitConfig.KEY);
						char commentChar = config.getCommentChar(newMessage);
						String message = new MergeMessageFormatter()
								.formatWithConflicts(newMessage,
										merger.getUnmergedPaths(), commentChar);
						repo.writeRevertHead(srcCommit.getId());
						repo.writeMergeCommitMsg(message);
					}
					return null;
				}
			}
		} catch (IOException e) {
			throw new JGitInternalException(
					MessageFormat.format(
									JGitText.get().exceptionCaughtDuringExecutionOfRevertCommand,
							e), e);
		}
		return newHead;
	}

	/**
	 * Include a {@code Ref} to a commit to be reverted
	 *
	 * @param commit
	 *            a reference to a commit to be reverted into the current head
	 * @return {@code this}
	 */
	public RevertCommand include(Ref commit) {
		checkCallable();
		commits.add(commit);
		return this;
	}

	/**
	 * Include a commit to be reverted
	 *
	 * @param commit
	 *            the Id of a commit to be reverted into the current head
	 * @return {@code this}
	 */
	public RevertCommand include(AnyObjectId commit) {
		return include(commit.getName(), commit);
	}

	/**
	 * Include a commit to be reverted
	 *
	 * @param name
	 *            name of a {@code Ref} referring to the commit
	 * @param commit
	 *            the Id of a commit which is reverted into the current head
	 * @return {@code this}
	 */
	public RevertCommand include(String name, AnyObjectId commit) {
		return include(new ObjectIdRef.Unpeeled(Storage.LOOSE, name,
				commit.copy()));
	}

	/**
	 * Set the name to be used in the "OURS" place for conflict markers
	 *
	 * @param ourCommitName
	 *            the name that should be used in the "OURS" place for conflict
	 *            markers
	 * @return {@code this}
	 */
	public RevertCommand setOurCommitName(String ourCommitName) {
		this.ourCommitName = ourCommitName;
		return this;
	}

	private String calculateOurName(Ref headRef) {
		if (ourCommitName != null)
			return ourCommitName;

		String targetRefName = headRef.getTarget().getName();
		String headName = Repository.shortenRefName(targetRefName);
		return headName;
	}

	/**
	 * Get the list of successfully reverted {@link org.eclipse.jgit.lib.Ref}'s.
	 *
	 * @return the list of successfully reverted
	 *         {@link org.eclipse.jgit.lib.Ref}'s. Never <code>null</code> but
	 *         maybe an empty list if no commit was successfully cherry-picked
	 */
	public List<Ref> getRevertedRefs() {
		return revertedRefs;
	}

	/**
	 * Get the result of a merge failure
	 *
	 * @return the result of a merge failure, <code>null</code> if no merge
	 *         failure occurred during the revert
	 */
	public MergeResult getFailingResult() {
		return failingResult;
	}

	/**
	 * Get unmerged paths
	 *
	 * @return the unmerged paths, will be null if no merge conflicts
	 */
	public List<String> getUnmergedPaths() {
		return unmergedPaths;
	}

	/**
	 * Set the merge strategy to use for this revert command
	 *
	 * @param strategy
	 *            The merge strategy to use for this revert command.
	 * @return {@code this}
	 * @since 3.4
	 */
	public RevertCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * The progress monitor associated with the revert operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor}
	 * @return {@code this}
	 * @since 4.11
	 */
	public RevertCommand setProgressMonitor(ProgressMonitor monitor) {
		if (monitor == null) {
			monitor = NullProgressMonitor.INSTANCE;
		}
		this.monitor = monitor;
		return this;
	}

	/**
	 * Defines whether to add a Gerrit change ID to each revert commit message.
	 *
	 * @param insertChangeId
	 *            whether to insert a change ID
	 * @return {@code this}
	 * @since 6.8
	 */
	public RevertCommand setInsertChangeId(boolean insertChangeId) {
		this.insertChangeId = insertChangeId;
		return this;
	}

}
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Content-Length: 5140
Content-Disposition: inline; filename="RmCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "7459e7298f1a957a524baa70b6a5622d249f2322"

/*
 * Copyright (C) 2010, 2012 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuildIterator;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * Remove files from the index and working directory (or optionally only from
 * the index).
 * <p>
 * It has setters for all supported options and arguments of this command and a
 * {@link #call()} method to finally execute the command. Each instance of this
 * class should only be used for one invocation of the command (means: one call
 * to {@link #call()}).
 * <p>
 * Examples (<code>git</code> is a {@link org.eclipse.jgit.api.Git} instance):
 * <p>
 * Remove file "test.txt" from both index and working directory:
 *
 * <pre>
 * git.rm().addFilepattern(&quot;test.txt&quot;).call();
 * </pre>
 * <p>
 * Remove file "new.txt" from the index (but not from the working directory):
 *
 * <pre>
 * git.rm().setCached(true).addFilepattern(&quot;new.txt&quot;).call();
 * </pre>
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-rm.html"
 *      >Git documentation about Rm</a>
 */
public class RmCommand extends GitCommand<DirCache> {

	private Collection<String> filepatterns;

	/** Only remove files from index, not from working directory */
	private boolean cached = false;

	/**
	 * Constructor for RmCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	public RmCommand(Repository repo) {
		super(repo);
		filepatterns = new ArrayList<>();
	}

	/**
	 * Add file name pattern of files to be removed
	 *
	 * @param filepattern
	 *            repository-relative path of file to remove (with
	 *            <code>/</code> as separator)
	 * @return {@code this}
	 */
	public RmCommand addFilepattern(String filepattern) {
		checkCallable();
		filepatterns.add(filepattern);
		return this;
	}

	/**
	 * Only remove the specified files from the index.
	 *
	 * @param cached
	 *            {@code true} if files should only be removed from index,
	 *            {@code false} if files should also be deleted from the working
	 *            directory
	 * @return {@code this}
	 * @since 2.2
	 */
	public RmCommand setCached(boolean cached) {
		checkCallable();
		this.cached = cached;
		return this;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Rm} command. Each instance of this class should only
	 * be used for one invocation of the command. Don't call this method twice
	 * on an instance.
	 */
	@Override
	public DirCache call() throws GitAPIException,
			NoFilepatternException {

		if (filepatterns.isEmpty())
			throw new NoFilepatternException(JGitText.get().atLeastOnePatternIsRequired);
		checkCallable();
		DirCache dc = null;

		List<String> actuallyDeletedFiles = new ArrayList<>();
		try (TreeWalk tw = new TreeWalk(repo)) {
			dc = repo.lockDirCache();
			DirCacheBuilder builder = dc.builder();
			tw.reset(); // drop the first empty tree, which we do not need here
			tw.setRecursive(true);
			tw.setFilter(PathFilterGroup.createFromStrings(filepatterns));
			tw.addTree(new DirCacheBuildIterator(builder));

			while (tw.next()) {
				if (!cached) {
					final FileMode mode = tw.getFileMode(0);
					if (mode.getObjectType() == Constants.OBJ_BLOB) {
						String relativePath = tw.getPathString();
						final File path = new File(repo.getWorkTree(),
								relativePath);
						// Deleting a blob is simply a matter of removing
						// the file or symlink named by the tree entry.
						if (delete(path)) {
							actuallyDeletedFiles.add(relativePath);
						}
					}
				}
			}
			builder.commit();
			setCallable(false);
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfRmCommand, e);
		} finally {
			try {
				if (dc != null) {
					dc.unlock();
				}
			} finally {
				if (!actuallyDeletedFiles.isEmpty()) {
					repo.fireEvent(new WorkingTreeModifiedEvent(null,
							actuallyDeletedFiles));
				}
			}
		}

		return dc;
	}

	private boolean delete(File p) {
		boolean deleted = false;
		while (p != null && !p.equals(repo.getWorkTree()) && p.delete()) {
			deleted = true;
			p = p.getParentFile();
		}
		return deleted;
	}

}
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Content-Length: 2581
Content-Disposition: inline; filename="ShowNoteCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "7bb9de0ef4867f4146c02713671ae880ef7a22de"

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.notes.Note;
import org.eclipse.jgit.notes.NoteMap;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Show an object note.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-notes.html"
 *      >Git documentation about Notes</a>
 */
public class ShowNoteCommand extends GitCommand<Note> {

	private RevObject id;

	private String notesRef = Constants.R_NOTES_COMMITS;

	/**
	 * Constructor for ShowNoteCommand.
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository}
	 */
	protected ShowNoteCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Note call() throws GitAPIException {
		checkCallable();
		NoteMap map = NoteMap.newEmptyMap();
		RevCommit notesCommit = null;
		try (RevWalk walk = new RevWalk(repo)) {
			Ref ref = repo.exactRef(notesRef);
			// if we have a notes ref, use it
			if (ref != null) {
				notesCommit = walk.parseCommit(ref.getObjectId());
				map = NoteMap.read(walk.getObjectReader(), notesCommit);
			}
			return map.getNote(id);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * Sets the object id of object you want a note on
	 *
	 * @param id
	 *            the {@link org.eclipse.jgit.revwalk.RevObject} to show notes
	 *            for.
	 * @return {@code this}
	 */
	public ShowNoteCommand setObjectId(RevObject id) {
		checkCallable();
		this.id = id;
		return this;
	}

	/**
	 * Set the {@code Ref} to read notes from.
	 *
	 * @param notesRef
	 *            the ref to read notes from. Note, the default value of
	 *            {@link org.eclipse.jgit.lib.Constants#R_NOTES_COMMITS} will be
	 *            used if nothing is set
	 * @return {@code this}
	 * @see Constants#R_NOTES_COMMITS
	 */
	public ShowNoteCommand setNotesRef(String notesRef) {
		checkCallable();
		this.notesRef = notesRef;
		return this;
	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 13644
Content-Disposition: inline; filename="StashApplyCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "b0b715e06b4bc0cece092c7b590fa74cbaa6e97f"

/*
 * Copyright (C) 2012, 2023 GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.treewalk.TreeWalk.OperationType.CHECKOUT_OP;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.StashApplyFailureException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.Checkout;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.dircache.DirCacheCheckout.CheckoutMetadata;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.CheckoutConflictException;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.CoreConfig.EolStreamType;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.merge.ContentMergeStrategy;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.merge.Merger;
import org.eclipse.jgit.merge.ResolveMerger;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.AbstractTreeIterator;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;

/**
 * Command class to apply a stashed commit.
 *
 * This class behaves like <em>git stash apply --index</em>, i.e. it tries to
 * recover the stashed index state in addition to the working tree state.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-stash.html"
 *      >Git documentation about Stash</a>
 * @since 2.0
 */
public class StashApplyCommand extends GitCommand<ObjectId> {

	private static final String DEFAULT_REF = Constants.STASH + "@{0}"; //$NON-NLS-1$

	private String stashRef;

	private boolean restoreIndex = true;

	private boolean restoreUntracked = true;

	private boolean ignoreRepositoryState;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private ContentMergeStrategy contentStrategy;

	/**
	 * Create command to apply the changes of a stashed commit
	 *
	 * @param repo
	 *            the {@link org.eclipse.jgit.lib.Repository} to apply the stash
	 *            to
	 */
	public StashApplyCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Set the stash reference to apply
	 * <p>
	 * This will default to apply the latest stashed commit (stash@{0}) if
	 * unspecified
	 *
	 * @param stashRef
	 *            name of the stash {@code Ref} to apply
	 * @return {@code this}
	 */
	public StashApplyCommand setStashRef(String stashRef) {
		this.stashRef = stashRef;
		return this;
	}

	/**
	 * Whether to ignore the repository state when applying the stash
	 *
	 * @param willIgnoreRepositoryState
	 *            whether to ignore the repository state when applying the stash
	 * @return {@code this}
	 * @since 3.2
	 */
	public StashApplyCommand ignoreRepositoryState(boolean willIgnoreRepositoryState) {
		this.ignoreRepositoryState = willIgnoreRepositoryState;
		return this;
	}

	private ObjectId getStashId() throws GitAPIException {
		final String revision = stashRef != null ? stashRef : DEFAULT_REF;
		final ObjectId stashId;
		try {
			stashId = repo.resolve(revision);
		} catch (IOException e) {
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().stashResolveFailed, revision), e);
		}
		if (stashId == null)
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().stashResolveFailed, revision));
		return stashId;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Apply the changes in a stashed commit to the working directory and index
	 */
	@Override
	public ObjectId call() throws GitAPIException,
			WrongRepositoryStateException, NoHeadException,
			StashApplyFailureException {
		checkCallable();

		if (!ignoreRepositoryState
				&& repo.getRepositoryState() != RepositoryState.SAFE)
			throw new WrongRepositoryStateException(MessageFormat.format(
					JGitText.get().stashApplyOnUnsafeRepository,
					repo.getRepositoryState()));

		try (ObjectReader reader = repo.newObjectReader();
				RevWalk revWalk = new RevWalk(reader)) {

			ObjectId headCommit = repo.resolve(Constants.HEAD);
			if (headCommit == null)
				throw new NoHeadException(JGitText.get().stashApplyWithoutHead);

			final ObjectId stashId = getStashId();
			RevCommit stashCommit = revWalk.parseCommit(stashId);
			if (stashCommit.getParentCount() < 2
					|| stashCommit.getParentCount() > 3)
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().stashCommitIncorrectNumberOfParents,
						stashId.name(),
						Integer.valueOf(stashCommit.getParentCount())));

			ObjectId headTree = repo.resolve(Constants.HEAD + "^{tree}"); //$NON-NLS-1$
			ObjectId stashIndexCommit = revWalk.parseCommit(stashCommit
					.getParent(1));
			ObjectId stashHeadCommit = stashCommit.getParent(0);
			ObjectId untrackedCommit = null;
			if (restoreUntracked && stashCommit.getParentCount() == 3)
				untrackedCommit = revWalk.parseCommit(stashCommit.getParent(2));

			Merger merger = strategy.newMerger(repo);
			boolean mergeSucceeded;
			if (merger instanceof ResolveMerger) {
				ResolveMerger resolveMerger = (ResolveMerger) merger;
				resolveMerger
						.setCommitNames(new String[] { "stashed HEAD", "HEAD", //$NON-NLS-1$ //$NON-NLS-2$
								"stash" }); //$NON-NLS-1$
				resolveMerger.setBase(stashHeadCommit);
				resolveMerger
						.setWorkingTreeIterator(new FileTreeIterator(repo));
				resolveMerger.setContentMergeStrategy(contentStrategy);
				mergeSucceeded = resolveMerger.merge(headCommit, stashCommit);
				List<String> modifiedByMerge = resolveMerger.getModifiedFiles();
				if (!modifiedByMerge.isEmpty()) {
					repo.fireEvent(new WorkingTreeModifiedEvent(modifiedByMerge,
							null));
				}
			} else {
				mergeSucceeded = merger.merge(headCommit, stashCommit);
			}
			if (mergeSucceeded) {
				DirCache dc = repo.lockDirCache();
				DirCacheCheckout dco = new DirCacheCheckout(repo, headTree,
						dc, merger.getResultTreeId());
				dco.setFailOnConflict(true);
				dco.checkout(); // Ignoring failed deletes....
				if (restoreIndex) {
					Merger ixMerger = strategy.newMerger(repo, true);
					if (ixMerger instanceof ResolveMerger) {
						ResolveMerger resolveMerger = (ResolveMerger) ixMerger;
						resolveMerger.setCommitNames(new String[] { "stashed HEAD", //$NON-NLS-1$
								"HEAD", "stashed index" }); //$NON-NLS-1$//$NON-NLS-2$
						resolveMerger.setBase(stashHeadCommit);
						resolveMerger.setContentMergeStrategy(contentStrategy);
					}
					boolean ok = ixMerger.merge(headCommit, stashIndexCommit);
					if (ok) {
						resetIndex(revWalk
								.parseTree(ixMerger.getResultTreeId()));
					} else {
						throw new StashApplyFailureException(
								JGitText.get().stashApplyConflict);
					}
				}

				if (untrackedCommit != null) {
					Merger untrackedMerger = strategy.newMerger(repo, true);
					if (untrackedMerger instanceof ResolveMerger) {
						ResolveMerger resolveMerger = (ResolveMerger) untrackedMerger;
						resolveMerger.setCommitNames(new String[] { "null", "HEAD", //$NON-NLS-1$//$NON-NLS-2$
								"untracked files" }); //$NON-NLS-1$
						// There is no common base for HEAD & untracked files
						// because the commit for untracked files has no parent.
						// If we use stashHeadCommit as common base (as in the
						// other merges) we potentially report conflicts for
						// files which are not even member of untracked files
						// commit.
						resolveMerger.setBase(null);
						resolveMerger.setContentMergeStrategy(contentStrategy);
					}
					boolean ok = untrackedMerger.merge(headCommit,
							untrackedCommit);
					if (ok) {
						try {
							RevTree untrackedTree = revWalk
									.parseTree(untrackedCommit);
							resetUntracked(untrackedTree);
						} catch (CheckoutConflictException e) {
							throw new StashApplyFailureException(
									JGitText.get().stashApplyConflict, e);
						}
					} else {
						throw new StashApplyFailureException(
								JGitText.get().stashApplyConflict);
					}
				}
			} else {
				throw new StashApplyFailureException(
						JGitText.get().stashApplyConflict);
			}
			return stashId;

		} catch (JGitInternalException e) {
			throw e;
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashApplyFailed, e);
		}
	}

	/**
	 * Whether to restore the index state
	 *
	 * @param restoreIndex
	 *            true (default) if the command should restore the index state
	 * @return {@code this}
	 * @since 5.3
	 */
	public StashApplyCommand setRestoreIndex(boolean restoreIndex) {
		this.restoreIndex = restoreIndex;
		return this;
	}

	/**
	 * Set the <code>MergeStrategy</code> to use.
	 *
	 * @param strategy
	 *            The merge strategy to use in order to merge during this
	 *            command execution.
	 * @return {@code this}
	 * @since 3.4
	 */
	public StashApplyCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * Sets the content merge strategy to use if the
	 * {@link #setStrategy(MergeStrategy) merge strategy} is "resolve" or
	 * "recursive".
	 *
	 * @param strategy
	 *            the {@link ContentMergeStrategy} to be used
	 * @return {@code this}
	 * @since 5.12
	 */
	public StashApplyCommand setContentMergeStrategy(
			ContentMergeStrategy strategy) {
		checkCallable();
		this.contentStrategy = strategy;
		return this;
	}

	/**
	 * Whether the command should restore untracked files
	 *
	 * @param restoreUntracked
	 *            true (default) if the command should restore untracked files
	 * @return {@code this}
	 * @since 5.3
	 */
	public StashApplyCommand setRestoreUntracked(boolean restoreUntracked) {
		this.restoreUntracked = restoreUntracked;
		return this;
	}

	private void resetIndex(RevTree tree) throws IOException {
		DirCache dc = repo.lockDirCache();
		try (TreeWalk walk = new TreeWalk(repo)) {
			DirCacheBuilder builder = dc.builder();

			walk.addTree(tree);
			walk.addTree(new DirCacheIterator(dc));
			walk.setRecursive(true);

			while (walk.next()) {
				AbstractTreeIterator cIter = walk.getTree(0,
						AbstractTreeIterator.class);
				if (cIter == null) {
					// Not in commit, don't add to new index
					continue;
				}

				final DirCacheEntry entry = new DirCacheEntry(walk.getRawPath());
				entry.setFileMode(cIter.getEntryFileMode());
				entry.setObjectIdFromRaw(cIter.idBuffer(), cIter.idOffset());

				DirCacheIterator dcIter = walk.getTree(1,
						DirCacheIterator.class);
				if (dcIter != null && dcIter.idEqual(cIter)) {
					DirCacheEntry indexEntry = dcIter.getDirCacheEntry();
					entry.setLastModified(indexEntry.getLastModifiedInstant());
					entry.setLength(indexEntry.getLength());
				}

				builder.add(entry);
			}

			builder.commit();
		} finally {
			dc.unlock();
		}
	}

	private void resetUntracked(RevTree tree) throws CheckoutConflictException,
			IOException {
		Set<String> actuallyModifiedPaths = new HashSet<>();
		Checkout checkout = new Checkout(repo).setRecursiveDeletion(true);
		// TODO maybe NameConflictTreeWalk ?
		try (TreeWalk walk = new TreeWalk(repo)) {
			walk.addTree(tree);
			walk.addTree(new FileTreeIterator(repo));
			walk.setRecursive(true);

			final ObjectReader reader = walk.getObjectReader();

			while (walk.next()) {
				final AbstractTreeIterator cIter = walk.getTree(0,
						AbstractTreeIterator.class);
				if (cIter == null)
					// Not in commit, don't create untracked
					continue;

				final EolStreamType eolStreamType = walk
						.getEolStreamType(CHECKOUT_OP);
				final DirCacheEntry entry = new DirCacheEntry(walk.getRawPath());
				entry.setFileMode(cIter.getEntryFileMode());
				entry.setObjectIdFromRaw(cIter.idBuffer(), cIter.idOffset());

				FileTreeIterator fIter = walk
						.getTree(1, FileTreeIterator.class);
				String gitPath = entry.getPathString();
				if (fIter != null) {
					if (fIter.isModified(entry, true, reader)) {
						// file exists and is dirty
						throw new CheckoutConflictException(gitPath);
					}
				}

				checkoutPath(entry, gitPath, reader, checkout,
						new CheckoutMetadata(eolStreamType, null));
				actuallyModifiedPaths.add(gitPath);
			}
		} finally {
			if (!actuallyModifiedPaths.isEmpty()) {
				repo.fireEvent(new WorkingTreeModifiedEvent(
						actuallyModifiedPaths, null));
			}
		}
	}

	private void checkoutPath(DirCacheEntry entry, String gitPath,
			ObjectReader reader,
			Checkout checkout, CheckoutMetadata checkoutMetadata) {
		try {
			checkout.checkout(entry, checkoutMetadata, reader, gitPath);
		} catch (IOException e) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().checkoutConflictWithFile,
					entry.getPathString()), e);
		}
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 12344
Content-Disposition: inline; filename="StashCreateCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f7a1f4eff82ec7013a23a6a9bca73a51d6135bd2"

/*
 * Copyright (C) 2012, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.OBJECT_ID_ABBREV_STRING_LENGTH;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jgit.api.ResetCommand.ResetType;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.UnmergedPathsException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheEditor;
import org.eclipse.jgit.dircache.DirCacheEditor.DeletePath;
import org.eclipse.jgit.dircache.DirCacheEditor.PathEdit;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.UnmergedPathException;
import org.eclipse.jgit.events.WorkingTreeModifiedEvent;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.MutableObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.AbstractTreeIterator;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.WorkingTreeIterator;
import org.eclipse.jgit.treewalk.filter.AndTreeFilter;
import org.eclipse.jgit.treewalk.filter.IndexDiffFilter;
import org.eclipse.jgit.treewalk.filter.SkipWorkTreeFilter;
import org.eclipse.jgit.util.FileUtils;

/**
 * Command class to stash changes in the working directory and index in a
 * commit.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-stash.html"
 *      >Git documentation about Stash</a>
 * @since 2.0
 */
public class StashCreateCommand extends GitCommand<RevCommit> {

	private static final String MSG_INDEX = "index on {0}: {1} {2}"; //$NON-NLS-1$

	private static final String MSG_UNTRACKED = "untracked files on {0}: {1} {2}"; //$NON-NLS-1$

	private static final String MSG_WORKING_DIR = "WIP on {0}: {1} {2}"; //$NON-NLS-1$

	private String indexMessage = MSG_INDEX;

	private String workingDirectoryMessage = MSG_WORKING_DIR;

	private String ref = Constants.R_STASH;

	private PersonIdent person;

	private boolean includeUntracked;

	/**
	 * Create a command to stash changes in the working directory and index
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public StashCreateCommand(Repository repo) {
		super(repo);
		person = new PersonIdent(repo);
	}

	/**
	 * Set the message used when committing index changes
	 * <p>
	 * The message will be formatted with the current branch, abbreviated commit
	 * id, and short commit message when used.
	 *
	 * @param message
	 *            the stash message
	 * @return {@code this}
	 */
	public StashCreateCommand setIndexMessage(String message) {
		indexMessage = message;
		return this;
	}

	/**
	 * Set the message used when committing working directory changes
	 * <p>
	 * The message will be formatted with the current branch, abbreviated commit
	 * id, and short commit message when used.
	 *
	 * @param message
	 *            the working directory message
	 * @return {@code this}
	 */
	public StashCreateCommand setWorkingDirectoryMessage(String message) {
		workingDirectoryMessage = message;
		return this;
	}

	/**
	 * Set the person to use as the author and committer in the commits made
	 *
	 * @param person
	 *            the {@link org.eclipse.jgit.lib.PersonIdent} of the person who
	 *            creates the stash.
	 * @return {@code this}
	 */
	public StashCreateCommand setPerson(PersonIdent person) {
		this.person = person;
		return this;
	}

	/**
	 * Set the reference to update with the stashed commit id If null, no
	 * reference is updated
	 * <p>
	 * This value defaults to {@link org.eclipse.jgit.lib.Constants#R_STASH}
	 *
	 * @param ref
	 *            the name of the {@code Ref} to update
	 * @return {@code this}
	 */
	public StashCreateCommand setRef(String ref) {
		this.ref = ref;
		return this;
	}

	/**
	 * Whether to include untracked files in the stash.
	 *
	 * @param includeUntracked
	 *            whether to include untracked files in the stash
	 * @return {@code this}
	 * @since 3.4
	 */
	public StashCreateCommand setIncludeUntracked(boolean includeUntracked) {
		this.includeUntracked = includeUntracked;
		return this;
	}

	private RevCommit parseCommit(final ObjectReader reader,
			final ObjectId headId) throws IOException {
		try (RevWalk walk = new RevWalk(reader)) {
			return walk.parseCommit(headId);
		}
	}

	private CommitBuilder createBuilder() {
		CommitBuilder builder = new CommitBuilder();
		PersonIdent author = person;
		if (author == null)
			author = new PersonIdent(repo);
		builder.setAuthor(author);
		builder.setCommitter(author);
		return builder;
	}

	private void updateStashRef(ObjectId commitId, PersonIdent refLogIdent,
			String refLogMessage) throws IOException {
		if (ref == null)
			return;
		Ref currentRef = repo.findRef(ref);
		RefUpdate refUpdate = repo.updateRef(ref);
		refUpdate.setNewObjectId(commitId);
		refUpdate.setRefLogIdent(refLogIdent);
		refUpdate.setRefLogMessage(refLogMessage, false);
		refUpdate.setForceRefLog(true);
		if (currentRef != null)
			refUpdate.setExpectedOldObjectId(currentRef.getObjectId());
		else
			refUpdate.setExpectedOldObjectId(ObjectId.zeroId());
		refUpdate.forceUpdate();
	}

	private Ref getHead() throws GitAPIException {
		try {
			Ref head = repo.exactRef(Constants.HEAD);
			if (head == null || head.getObjectId() == null)
				throw new NoHeadException(JGitText.get().headRequiredToStash);
			return head;
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashFailed, e);
		}
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Stash the contents on the working directory and index in separate commits
	 * and reset to the current HEAD commit.
	 */
	@Override
	public RevCommit call() throws GitAPIException {
		checkCallable();

		List<String> deletedFiles = new ArrayList<>();
		Ref head = getHead();
		try (ObjectReader reader = repo.newObjectReader()) {
			RevCommit headCommit = parseCommit(reader, head.getObjectId());
			DirCache cache = repo.lockDirCache();
			ObjectId commitId;
			try (ObjectInserter inserter = repo.newObjectInserter();
					TreeWalk treeWalk = new TreeWalk(repo, reader)) {

				treeWalk.setRecursive(true);
				treeWalk.addTree(headCommit.getTree());
				treeWalk.addTree(new DirCacheIterator(cache));
				treeWalk.addTree(new FileTreeIterator(repo));
				treeWalk.getTree(2, FileTreeIterator.class)
						.setDirCacheIterator(treeWalk, 1);
				treeWalk.setFilter(AndTreeFilter.create(new SkipWorkTreeFilter(
						1), new IndexDiffFilter(1, 2)));

				// Return null if no local changes to stash
				if (!treeWalk.next())
					return null;

				MutableObjectId id = new MutableObjectId();
				List<PathEdit> wtEdits = new ArrayList<>();
				List<String> wtDeletes = new ArrayList<>();
				List<DirCacheEntry> untracked = new ArrayList<>();
				boolean hasChanges = false;
				do {
					AbstractTreeIterator headIter = treeWalk.getTree(0,
							AbstractTreeIterator.class);
					DirCacheIterator indexIter = treeWalk.getTree(1,
							DirCacheIterator.class);
					WorkingTreeIterator wtIter = treeWalk.getTree(2,
							WorkingTreeIterator.class);
					if (indexIter != null
							&& !indexIter.getDirCacheEntry().isMerged())
						throw new UnmergedPathsException(
								new UnmergedPathException(
										indexIter.getDirCacheEntry()));
					if (wtIter != null) {
						if (indexIter == null && headIter == null
								&& !includeUntracked)
							continue;
						hasChanges = true;
						if (indexIter != null && wtIter.idEqual(indexIter))
							continue;
						if (headIter != null && wtIter.idEqual(headIter))
							continue;
						treeWalk.getObjectId(id, 0);
						final DirCacheEntry entry = new DirCacheEntry(
								treeWalk.getRawPath());
						entry.setLength(wtIter.getEntryLength());
						entry.setLastModified(
								wtIter.getEntryLastModifiedInstant());
						entry.setFileMode(wtIter.getEntryFileMode());
						long contentLength = wtIter.getEntryContentLength();
						try (InputStream in = wtIter.openEntryStream()) {
							entry.setObjectId(inserter.insert(
									Constants.OBJ_BLOB, contentLength, in));
						}

						if (indexIter == null && headIter == null)
							untracked.add(entry);
						else
							wtEdits.add(new PathEdit(entry) {
								@Override
								public void apply(DirCacheEntry ent) {
									ent.copyMetaData(entry);
								}
							});
					}
					hasChanges = true;
					if (wtIter == null && headIter != null)
						wtDeletes.add(treeWalk.getPathString());
				} while (treeWalk.next());

				if (!hasChanges)
					return null;

				String branch = Repository.shortenRefName(head.getTarget()
						.getName());

				// Commit index changes
				CommitBuilder builder = createBuilder();
				builder.setParentId(headCommit);
				builder.setTreeId(cache.writeTree(inserter));
				builder.setMessage(MessageFormat.format(indexMessage, branch,
						headCommit.abbreviate(OBJECT_ID_ABBREV_STRING_LENGTH)
								.name(),
						headCommit.getShortMessage()));
				ObjectId indexCommit = inserter.insert(builder);

				// Commit untracked changes
				ObjectId untrackedCommit = null;
				if (!untracked.isEmpty()) {
					DirCache untrackedDirCache = DirCache.newInCore();
					DirCacheBuilder untrackedBuilder = untrackedDirCache
							.builder();
					for (DirCacheEntry entry : untracked)
						untrackedBuilder.add(entry);
					untrackedBuilder.finish();

					builder.setParentIds(new ObjectId[0]);
					builder.setTreeId(untrackedDirCache.writeTree(inserter));
					builder.setMessage(MessageFormat.format(MSG_UNTRACKED,
							branch,
							headCommit
									.abbreviate(OBJECT_ID_ABBREV_STRING_LENGTH)
									.name(),
							headCommit.getShortMessage()));
					untrackedCommit = inserter.insert(builder);
				}

				// Commit working tree changes
				if (!wtEdits.isEmpty() || !wtDeletes.isEmpty()) {
					DirCacheEditor editor = cache.editor();
					for (PathEdit edit : wtEdits)
						editor.add(edit);
					for (String path : wtDeletes)
						editor.add(new DeletePath(path));
					editor.finish();
				}
				builder.setParentId(headCommit);
				builder.addParentId(indexCommit);
				if (untrackedCommit != null)
					builder.addParentId(untrackedCommit);
				builder.setMessage(MessageFormat.format(
						workingDirectoryMessage, branch,
						headCommit.abbreviate(OBJECT_ID_ABBREV_STRING_LENGTH)
								.name(),
						headCommit.getShortMessage()));
				builder.setTreeId(cache.writeTree(inserter));
				commitId = inserter.insert(builder);
				inserter.flush();

				updateStashRef(commitId, builder.getAuthor(),
						builder.getMessage());

				// Remove untracked files
				if (includeUntracked) {
					for (DirCacheEntry entry : untracked) {
						String repoRelativePath = entry.getPathString();
						File file = new File(repo.getWorkTree(),
								repoRelativePath);
						FileUtils.delete(file);
						deletedFiles.add(repoRelativePath);
					}
				}

			} finally {
				cache.unlock();
			}

			// Hard reset to HEAD
			new ResetCommand(repo).setMode(ResetType.HARD).call();

			// Return stashed commit
			return parseCommit(reader, commitId);
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashFailed, e);
		} finally {
			if (!deletedFiles.isEmpty()) {
				repo.fireEvent(
						new WorkingTreeModifiedEvent(null, deletedFiles));
			}
		}
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 6552
Content-Disposition: inline; filename="StashDropCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "2dba0ef0f2f9e7045b3a3936f7be5a238b9c950c"

/*
 * Copyright (C) 2012, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.lib.Constants.R_STASH;

import java.io.File;
import java.io.IOException;
import java.nio.file.StandardCopyOption;
import java.text.MessageFormat;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.errors.LockFailedException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.internal.storage.file.RefDirectory;
import org.eclipse.jgit.internal.storage.file.ReflogWriter;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.lib.ReflogReader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.util.FileUtils;

/**
 * Command class to delete a stashed commit reference
 * <p>
 * Currently only supported on a traditional file repository using
 * one-file-per-ref reflogs.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-stash.html"
 *      >Git documentation about Stash</a>
 * @since 2.0
 */
public class StashDropCommand extends GitCommand<ObjectId> {

	private int stashRefEntry;

	private boolean all;

	/**
	 * Constructor for StashDropCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public StashDropCommand(Repository repo) {
		super(repo);
		if (!(repo.getRefDatabase() instanceof RefDirectory)) {
			throw new UnsupportedOperationException(
					JGitText.get().stashDropNotSupported);
		}
	}

	/**
	 * Set the stash reference to drop (0-based).
	 * <p>
	 * This will default to drop the latest stashed commit (stash@{0}) if
	 * unspecified
	 *
	 * @param stashRef
	 *            the 0-based index of the stash reference
	 * @return {@code this}
	 */
	public StashDropCommand setStashRef(int stashRef) {
		if (stashRef < 0)
			throw new IllegalArgumentException();

		stashRefEntry = stashRef;
		return this;
	}

	/**
	 * Set whether to drop all stashed commits
	 *
	 * @param all
	 *            {@code true} to drop all stashed commits, {@code false} to
	 *            drop only the stashed commit set via calling
	 *            {@link #setStashRef(int)}
	 * @return {@code this}
	 */
	public StashDropCommand setAll(boolean all) {
		this.all = all;
		return this;
	}

	private Ref getRef() throws GitAPIException {
		try {
			return repo.exactRef(R_STASH);
		} catch (IOException e) {
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().cannotRead, R_STASH), e);
		}
	}

	private RefUpdate createRefUpdate(Ref stashRef) throws IOException {
		RefUpdate update = repo.updateRef(R_STASH);
		update.disableRefLog();
		update.setExpectedOldObjectId(stashRef.getObjectId());
		update.setForceUpdate(true);
		return update;
	}

	private void deleteRef(Ref stashRef) {
		try {
			Result result = createRefUpdate(stashRef).delete();
			if (Result.FORCED != result)
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().stashDropDeleteRefFailed, result));
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashDropFailed, e);
		}
	}

	private void updateRef(Ref stashRef, ObjectId newId) {
		try {
			RefUpdate update = createRefUpdate(stashRef);
			update.setNewObjectId(newId);
			Result result = update.update();
			switch (result) {
			case FORCED:
			case NEW:
			case NO_CHANGE:
				return;
			default:
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().updatingRefFailed, R_STASH, newId,
						result));
			}
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashDropFailed, e);
		}
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Drop the configured entry from the stash reflog and return value of the
	 * stash reference after the drop occurs
	 */
	@Override
	public ObjectId call() throws GitAPIException {
		checkCallable();

		Ref stashRef = getRef();
		if (stashRef == null)
			return null;

		if (all) {
			deleteRef(stashRef);
			return null;
		}

		List<ReflogEntry> entries;
		try {
			ReflogReader reader = repo.getRefDatabase()
					.getReflogReader(R_STASH);
			if (reader == null) {
				throw new RefNotFoundException(MessageFormat
						.format(JGitText.get().refNotResolved, stashRef));
			}
			entries = reader.getReverseEntries();
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashDropFailed, e);
		}

		if (stashRefEntry >= entries.size())
			throw new JGitInternalException(
					JGitText.get().stashDropMissingReflog);

		if (entries.size() == 1) {
			deleteRef(stashRef);
			return null;
		}

		RefDirectory refdb = (RefDirectory) repo.getRefDatabase();
		ReflogWriter writer = new ReflogWriter(refdb, true);
		String stashLockRef = ReflogWriter.refLockFor(R_STASH);
		File stashLockFile = refdb.logFor(stashLockRef);
		File stashFile = refdb.logFor(R_STASH);
		if (stashLockFile.exists())
			throw new JGitInternalException(JGitText.get().stashDropFailed,
					new LockFailedException(stashFile));

		entries.remove(stashRefEntry);
		ObjectId entryId = ObjectId.zeroId();
		try {
			for (int i = entries.size() - 1; i >= 0; i--) {
				ReflogEntry entry = entries.get(i);
				writer.log(stashLockRef, entryId, entry.getNewId(),
						entry.getWho(), entry.getComment());
				entryId = entry.getNewId();
			}
			try {
				FileUtils.rename(stashLockFile, stashFile,
						StandardCopyOption.ATOMIC_MOVE);
			} catch (IOException e) {
					throw new JGitInternalException(MessageFormat.format(
							JGitText.get().renameFileFailed,
								stashLockFile.getPath(), stashFile.getPath()),
						e);
			}
		} catch (IOException e) {
			throw new JGitInternalException(JGitText.get().stashDropFailed, e);
		}
		updateRef(stashRef, entryId);

		try {
			Ref newStashRef = repo.exactRef(R_STASH);
			return newStashRef != null ? newStashRef.getObjectId() : null;
		} catch (IOException e) {
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().cannotRead, R_STASH), e);
		}
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 2397
Content-Disposition: inline; filename="StashListCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "828a3020f81a5e784602ca002e2975fe5a2fcbc6"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidRefNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Command class to list the stashed commits in a repository.
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-stash.html"
 *      >Git documentation about Stash</a>
 */
public class StashListCommand extends GitCommand<Collection<RevCommit>> {

	/**
	 * Create a new stash list command
	 *
	 * @param repo a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public StashListCommand(Repository repo) {
		super(repo);
	}

	@Override
	public Collection<RevCommit> call() throws GitAPIException,
			InvalidRefNameException {
		checkCallable();

		try {
			if (repo.exactRef(Constants.R_STASH) == null)
				return Collections.emptyList();
		} catch (IOException e) {
			throw new InvalidRefNameException(MessageFormat.format(
					JGitText.get().cannotRead, Constants.R_STASH), e);
		}

		final ReflogCommand refLog = new ReflogCommand(repo);
		refLog.setRef(Constants.R_STASH);
		final Collection<ReflogEntry> stashEntries = refLog.call();
		if (stashEntries.isEmpty())
			return Collections.emptyList();

		final List<RevCommit> stashCommits = new ArrayList<>(
				stashEntries.size());
		try (RevWalk walk = new RevWalk(repo)) {
			for (ReflogEntry entry : stashEntries) {
				try {
					stashCommits.add(walk.parseCommit(entry.getNewId()));
				} catch (IOException e) {
					throw new JGitInternalException(MessageFormat.format(
							JGitText.get().cannotReadCommit, entry.getNewId()),
							e);
				}
			}
		}
		return stashCommits;
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 5811
Content-Disposition: inline; filename="Status.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f01158fa79b51d7a7ab0e060c471843f9fe4fc51"

/*
 * Copyright (C) 2011, 2013 Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.eclipse.jgit.lib.IndexDiff;
import org.eclipse.jgit.lib.IndexDiff.StageState;

/**
 * A class telling where the working-tree, the index and the current HEAD differ
 * from each other. Collections are exposed containing the paths of the modified
 * files. E.g. to find out which files are dirty in the working tree (modified
 * but not added) you would inspect the collection returned by
 * {@link #getModified()}.
 * <p>
 * The same path can be returned by multiple getters. E.g. if a modification has
 * been added to the index and afterwards the corresponding working tree file is
 * again modified this path will be returned by {@link #getModified()} and
 * {@link #getChanged()}
 */
public class Status {
	private final IndexDiff diff;

	private final boolean clean;

	private final boolean hasUncommittedChanges;

	/**
	 * Constructor for Status.
	 *
	 * @param diff
	 *            the {@link org.eclipse.jgit.lib.IndexDiff} having the status
	 */
	public Status(IndexDiff diff) {
		super();
		this.diff = diff;
		hasUncommittedChanges = !diff.getAdded().isEmpty() //
				|| !diff.getChanged().isEmpty() //
				|| !diff.getRemoved().isEmpty() //
				|| !diff.getMissing().isEmpty() //
				|| !diff.getModified().isEmpty() //
				|| !diff.getConflicting().isEmpty();
		clean = !hasUncommittedChanges //
				&& diff.getUntracked().isEmpty();
	}

	/**
	 * Whether the status is clean
	 *
	 * @return {@code true} if no differences exist between the working-tree,
	 *         the index, and the current HEAD, {@code false} if differences do
	 *         exist
	 */
	public boolean isClean() {
		return clean;
	}

	/**
	 * Whether there are uncommitted changes
	 *
	 * @return {@code true} if any tracked file is changed
	 * @since 3.2
	 */
	public boolean hasUncommittedChanges() {
		return hasUncommittedChanges;
	}

	/**
	 * Get files added to the index
	 *
	 * @return list of files added to the index, not in HEAD (e.g. what you get
	 *         if you call {@code git add ...} on a newly created file)
	 */
	public Set<String> getAdded() {
		return Collections.unmodifiableSet(diff.getAdded());
	}

	/**
	 * Get changed files from HEAD to index
	 *
	 * @return list of files changed from HEAD to index (e.g. what you get if
	 *         you modify an existing file and call 'git add ...' on it)
	 */
	public Set<String> getChanged() {
		return Collections.unmodifiableSet(diff.getChanged());
	}

	/**
	 * Get removed files
	 *
	 * @return list of files removed from index, but in HEAD (e.g. what you get
	 *         if you call 'git rm ...' on a existing file)
	 */
	public Set<String> getRemoved() {
		return Collections.unmodifiableSet(diff.getRemoved());
	}

	/**
	 * Get missing files
	 *
	 * @return list of files in index, but not filesystem (e.g. what you get if
	 *         you call 'rm ...' on a existing file)
	 */
	public Set<String> getMissing() {
		return Collections.unmodifiableSet(diff.getMissing());
	}

	/**
	 * Get modified files relative to the index
	 *
	 * @return list of files modified on disk relative to the index (e.g. what
	 *         you get if you modify an existing file without adding it to the
	 *         index)
	 */
	public Set<String> getModified() {
		return Collections.unmodifiableSet(diff.getModified());
	}

	/**
	 * Get untracked files
	 *
	 * @return list of files that are not ignored, and not in the index. (e.g.
	 *         what you get if you create a new file without adding it to the
	 *         index)
	 */
	public Set<String> getUntracked() {
		return Collections.unmodifiableSet(diff.getUntracked());
	}

	/**
	 * Get untracked folders
	 *
	 * @return set of directories that are not ignored, and not in the index.
	 */
	public Set<String> getUntrackedFolders() {
		return Collections.unmodifiableSet(diff.getUntrackedFolders());
	}

	/**
	 * Get conflicting files
	 *
	 * @return list of files that are in conflict. (e.g what you get if you
	 *         modify file that was modified by someone else in the meantime)
	 */
	public Set<String> getConflicting() {
		return Collections.unmodifiableSet(diff.getConflicting());
	}

	/**
	 * Get StageState of conflicting files
	 *
	 * @return a map from conflicting path to its
	 *         {@link org.eclipse.jgit.lib.IndexDiff.StageState}.
	 * @since 3.0
	 */
	public Map<String, StageState> getConflictingStageState() {
		return Collections.unmodifiableMap(diff.getConflictingStageStates());
	}

	/**
	 * Get ignored files which are not in the index
	 *
	 * @return set of files and folders that are ignored and not in the index.
	 */
	public Set<String> getIgnoredNotInIndex() {
		return Collections.unmodifiableSet(diff.getIgnoredNotInIndex());
	}

	/**
	 * Get uncommitted changes, i.e. all files changed in the index or working
	 * tree
	 *
	 * @return set of files and folders that are known to the repo and changed
	 *         either in the index or in the working tree.
	 * @since 3.2
	 */
	public Set<String> getUncommittedChanges() {
		Set<String> uncommittedChanges = new HashSet<>();
		uncommittedChanges.addAll(diff.getAdded());
		uncommittedChanges.addAll(diff.getChanged());
		uncommittedChanges.addAll(diff.getRemoved());
		uncommittedChanges.addAll(diff.getMissing());
		uncommittedChanges.addAll(diff.getModified());
		uncommittedChanges.addAll(diff.getConflicting());
		return uncommittedChanges;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 5163
Content-Disposition: inline; filename="StatusCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "cdd078ea250de981b766c163b2235700dc38d053"

/*
 * Copyright (C) 2011, Christian Halstrick <christian.halstrick@sap.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.NoWorkTreeException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.IndexDiff;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.submodule.SubmoduleWalk.IgnoreSubmoduleMode;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.WorkingTreeIterator;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * A class used to execute a {@code Status} command. It has setters for all
 * supported options and arguments of this command and a {@link #call()} method
 * to finally execute the command. Each instance of this class should only be
 * used for one invocation of the command (means: one call to {@link #call()})
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-status.html" >Git
 *      documentation about Status</a>
 */
public class StatusCommand extends GitCommand<Status> {
	private WorkingTreeIterator workingTreeIt;
	private List<String> paths = null;
	private ProgressMonitor progressMonitor = null;

	private IgnoreSubmoduleMode ignoreSubmoduleMode = null;

	/**
	 * Constructor for StatusCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected StatusCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Whether to ignore submodules
	 *
	 * @param mode
	 *            the
	 *            {@link org.eclipse.jgit.submodule.SubmoduleWalk.IgnoreSubmoduleMode}
	 * @return {@code this}
	 * @since 3.6
	 */
	public StatusCommand setIgnoreSubmodules(IgnoreSubmoduleMode mode) {
		ignoreSubmoduleMode = mode;
		return this;
	}

	/**
	 * Show only the status of files which match the given paths. The path must
	 * either name a file or a directory exactly. All paths are always relative
	 * to the repository root. If a directory is specified all files recursively
	 * underneath that directory are matched. If this method is called multiple
	 * times then the status of those files is reported which match at least one
	 * of the given paths. Note that regex expressions or wildcards are not
	 * supported.
	 *
	 * @param path
	 *            repository-relative path of file/directory to show status for
	 *            (with <code>/</code> as separator)
	 * @return {@code this}
	 * @since 3.1
	 */
	public StatusCommand addPath(String path) {
		if (paths == null)
			paths = new ArrayList<>();
		paths.add(path);
		return this;
	}

	/**
	 * Returns the paths filtering this status.
	 *
	 * @return the paths for which the status is shown or <code>null</code> if
	 *         the complete status for the whole repo is shown.
	 * @since 3.1
	 */
	public List<String> getPaths() {
		return paths;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code Status} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command. Don't call
	 * this method twice on an instance.
	 */
	@Override
	public Status call() throws GitAPIException, NoWorkTreeException {
		if (workingTreeIt == null)
			workingTreeIt = new FileTreeIterator(repo);

		try {
			IndexDiff diff = new IndexDiff(repo, Constants.HEAD, workingTreeIt);
			if (ignoreSubmoduleMode != null)
				diff.setIgnoreSubmoduleMode(ignoreSubmoduleMode);
			if (paths != null)
				diff.setFilter(PathFilterGroup.createFromStrings(paths));
			if (progressMonitor == null)
				diff.diff();
			else
				diff.diff(progressMonitor, ProgressMonitor.UNKNOWN,
						ProgressMonitor.UNKNOWN, ""); //$NON-NLS-1$
			return new Status(diff);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * To set the {@link org.eclipse.jgit.treewalk.WorkingTreeIterator} which
	 * should be used. If this method is not called a standard
	 * {@link org.eclipse.jgit.treewalk.FileTreeIterator} is used.
	 *
	 * @param workingTreeIt
	 *            a working tree iterator
	 * @return {@code this}
	 */
	public StatusCommand setWorkingTreeIt(WorkingTreeIterator workingTreeIt) {
		this.workingTreeIt = workingTreeIt;
		return this;
	}

	/**
	 * To set the {@link org.eclipse.jgit.lib.ProgressMonitor} which contains
	 * callback methods to inform you about the progress of this command.
	 *
	 * @param progressMonitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor} object.
	 * @return {@code this}
	 * @since 3.1
	 */
	public StatusCommand setProgressMonitor(ProgressMonitor progressMonitor) {
		this.progressMonitor = progressMonitor;
		return this;
	}
}
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Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 6871
Content-Disposition: inline; filename="SubmoduleAddCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "5105dfc2e5ac287334d7fc978cc549bf0452975c"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoFilepatternException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.internal.submodule.SubmoduleValidator;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilter;
import org.eclipse.jgit.treewalk.filter.TreeFilter;

/**
 * A class used to execute a submodule add command.
 *
 * This will clone the configured submodule, register the submodule in the
 * .gitmodules file and the repository config file, and also add the submodule
 * and .gitmodules file to the index.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleAddCommand extends
		TransportCommand<SubmoduleAddCommand, Repository> {

	private String name;

	private String path;

	private String uri;

	private ProgressMonitor monitor;

	/**
	 * Constructor for SubmoduleAddCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public SubmoduleAddCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Set the submodule name
	 *
	 * @param name
	 *            name of the submodule
	 * @return this command
	 * @since 5.1
	 */
	public SubmoduleAddCommand setName(String name) {
		this.name = name;
		return this;
	}

	/**
	 * Set repository-relative path of submodule
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleAddCommand setPath(String path) {
		this.path = path;
		return this;
	}

	/**
	 * Set URI to clone submodule from
	 *
	 * @param uri
	 *            a {@link java.lang.String} object.
	 * @return this command
	 */
	public SubmoduleAddCommand setURI(String uri) {
		this.uri = uri;
		return this;
	}

	/**
	 * The progress monitor associated with the clone operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor} object.
	 * @return this command
	 */
	public SubmoduleAddCommand setProgressMonitor(ProgressMonitor monitor) {
		this.monitor = monitor;
		return this;
	}

	/**
	 * Is the configured already a submodule in the index?
	 *
	 * @return true if submodule exists in index, false otherwise
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 */
	protected boolean submoduleExists() throws IOException {
		TreeFilter filter = PathFilter.create(path);
		try (SubmoduleWalk w = SubmoduleWalk.forIndex(repo)) {
			return w.setFilter(filter).next();
		}
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code SubmoduleAddCommand}
	 *
	 * The {@code Repository} instance returned by this command needs to be
	 * closed by the caller to free resources held by the {@code Repository}
	 * instance. It is recommended to call this method as soon as you don't need
	 * a reference to this {@code Repository} instance anymore.
	 */
	@Override
	public Repository call() throws GitAPIException {
		checkCallable();
		if (path == null || path.length() == 0)
			throw new IllegalArgumentException(JGitText.get().pathNotConfigured);
		if (uri == null || uri.length() == 0)
			throw new IllegalArgumentException(JGitText.get().uriNotConfigured);
		if (name == null || name.length() == 0) {
			// Use the path as the default.
			name = path;
		}

		try {
			SubmoduleValidator.assertValidSubmoduleName(name);
			SubmoduleValidator.assertValidSubmodulePath(path);
			SubmoduleValidator.assertValidSubmoduleUri(uri);
		} catch (SubmoduleValidator.SubmoduleValidationException e) {
			throw new IllegalArgumentException(e.getMessage());
		}

		try {
			if (submoduleExists())
				throw new JGitInternalException(MessageFormat.format(
						JGitText.get().submoduleExists, path));
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		final String resolvedUri;
		try {
			resolvedUri = SubmoduleWalk.getSubmoduleRemoteUrl(repo, uri);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
		// Clone submodule repository
		File moduleDirectory = SubmoduleWalk.getSubmoduleDirectory(repo, path);
		CloneCommand clone = Git.cloneRepository();
		configure(clone);
		clone.setDirectory(moduleDirectory);
		clone.setGitDir(new File(
				new File(repo.getCommonDirectory(), Constants.MODULES), path));
		clone.setRelativePaths(true);
		clone.setURI(resolvedUri);
		if (monitor != null)
			clone.setProgressMonitor(monitor);
		Repository subRepo = null;
		try (Git git = clone.call()) {
			subRepo = git.getRepository();
			subRepo.incrementOpen();
		}

		// Save submodule URL to parent repository's config
		StoredConfig config = repo.getConfig();
		config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION, name,
				ConfigConstants.CONFIG_KEY_URL, resolvedUri);
		try {
			config.save();
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		// Save path and URL to parent repository's .gitmodules file
		FileBasedConfig modulesConfig = new FileBasedConfig(new File(
				repo.getWorkTree(), Constants.DOT_GIT_MODULES), repo.getFS());
		try {
			modulesConfig.load();
			modulesConfig.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
					name, ConfigConstants.CONFIG_KEY_PATH, path);
			modulesConfig.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
					name, ConfigConstants.CONFIG_KEY_URL, uri);
			modulesConfig.save();
		} catch (IOException | ConfigInvalidException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		AddCommand add = new AddCommand(repo);
		// Add .gitmodules file to parent repository's index
		add.addFilepattern(Constants.DOT_GIT_MODULES);
		// Add submodule directory to parent repository's index
		add.addFilepattern(path);
		try {
			add.call();
		} catch (NoFilepatternException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}

		return subRepo;
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 8662
Content-Disposition: inline; filename="SubmoduleDeinitCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "0aa151533405349b291b1edb9f6b50bfe4a09ea9"

/*
 * Copyright (C) 2017, Two Sigma Open Source and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import static org.eclipse.jgit.util.FileUtils.RECURSIVE;

import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidConfigurationException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilter;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
import org.eclipse.jgit.util.FileUtils;

/**
 * A class used to execute a submodule deinit command.
 * <p>
 * This will remove the module(s) from the working tree, but won't affect
 * .git/modules.
 *
 * @since 4.10
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleDeinitCommand
		extends GitCommand<Collection<SubmoduleDeinitResult>> {

	private final Collection<String> paths;

	private boolean force;

	/**
	 * Constructor of SubmoduleDeinitCommand
	 *
	 * @param repo
	 *            repository this command works on
	 */
	public SubmoduleDeinitCommand(Repository repo) {
		super(repo);
		paths = new ArrayList<>();
	}

	/**
	 * {@inheritDoc}
	 *
	 * @return the set of repositories successfully deinitialized.
	 * @throws NoSuchSubmoduleException
	 *             if any of the submodules which we might want to deinitialize
	 *             don't exist
	 */
	@Override
	public Collection<SubmoduleDeinitResult> call() throws GitAPIException {
		checkCallable();
		try {
			if (paths.isEmpty()) {
				return Collections.emptyList();
			}
			for (String path : paths) {
				if (!submoduleExists(path)) {
					throw new NoSuchSubmoduleException(path);
				}
			}
			List<SubmoduleDeinitResult> results = new ArrayList<>(paths.size());
			try (RevWalk revWalk = new RevWalk(repo);
					SubmoduleWalk generator = SubmoduleWalk.forIndex(repo)) {
				generator.setFilter(PathFilterGroup.createFromStrings(paths));
				StoredConfig config = repo.getConfig();
				while (generator.next()) {
					String path = generator.getPath();
					String name = generator.getModuleName();
					SubmoduleDeinitStatus status = checkDirty(revWalk, path);
					switch (status) {
					case SUCCESS:
						deinit(path);
						break;
					case ALREADY_DEINITIALIZED:
						break;
					case DIRTY:
						if (force) {
							deinit(path);
							status = SubmoduleDeinitStatus.FORCED;
						}
						break;
					default:
						throw new JGitInternalException(MessageFormat.format(
								JGitText.get().unexpectedSubmoduleStatus,
								status));
					}

					config.unsetSection(
							ConfigConstants.CONFIG_SUBMODULE_SECTION, name);
					results.add(new SubmoduleDeinitResult(path, status));
				}
			}
			return results;
		} catch (ConfigInvalidException e) {
			throw new InvalidConfigurationException(e.getMessage(), e);
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	/**
	 * Recursively delete the *contents* of path, but leave path as an empty
	 * directory
	 *
	 * @param path
	 *            the path to clean
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private void deinit(String path) throws IOException {
		File dir = new File(repo.getWorkTree(), path);
		if (!dir.isDirectory()) {
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().expectedDirectoryNotSubmodule, path));
		}
		final File[] ls = dir.listFiles();
		if (ls != null) {
			for (File f : ls) {
				FileUtils.delete(f, RECURSIVE);
			}
		}
	}

	/**
	 * Check if a submodule is dirty. A submodule is dirty if there are local
	 * changes to the submodule relative to its HEAD, including untracked files.
	 * It is also dirty if the HEAD of the submodule does not match the value in
	 * the parent repo's index or HEAD.
	 *
	 * @param revWalk
	 *            used to walk commit graph
	 * @param path
	 *            path of the submodule
	 * @return status of the command
	 * @throws GitAPIException
	 *             if JGit API failed
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private SubmoduleDeinitStatus checkDirty(RevWalk revWalk, String path)
			throws GitAPIException, IOException {
		Ref head = repo.exactRef("HEAD"); //$NON-NLS-1$
		if (head == null) {
			throw new NoHeadException(
					JGitText.get().invalidRepositoryStateNoHead);
		}
		RevCommit headCommit = revWalk.parseCommit(head.getObjectId());
		RevTree tree = headCommit.getTree();

		ObjectId submoduleHead;
		try (SubmoduleWalk w = SubmoduleWalk.forPath(repo, tree, path)) {
			submoduleHead = w.getHead();
			if (submoduleHead == null) {
				// The submodule is not checked out.
				return SubmoduleDeinitStatus.ALREADY_DEINITIALIZED;
			}
			if (!submoduleHead.equals(w.getObjectId())) {
				// The submodule's current HEAD doesn't match the value in the
				// outer repo's HEAD.
				return SubmoduleDeinitStatus.DIRTY;
			}
		}

		try (SubmoduleWalk w = SubmoduleWalk.forIndex(repo)) {
			if (!w.next()) {
				// The submodule does not exist in the index (shouldn't happen
				// since we check this earlier)
				return SubmoduleDeinitStatus.DIRTY;
			}
			if (!submoduleHead.equals(w.getObjectId())) {
				// The submodule's current HEAD doesn't match the value in the
				// outer repo's index.
				return SubmoduleDeinitStatus.DIRTY;
			}

			try (Repository submoduleRepo = w.getRepository()) {
				Status status = Git.wrap(submoduleRepo).status().call();
				return status.isClean() ? SubmoduleDeinitStatus.SUCCESS
						: SubmoduleDeinitStatus.DIRTY;
			}
		}
	}

	/**
	 * Check if this path is a submodule by checking the index, which is what
	 * git submodule deinit checks.
	 *
	 * @param path
	 *            path of the submodule
	 *
	 * @return {@code true} if path exists and is a submodule in index,
	 *         {@code false} otherwise
	 * @throws IOException
	 *             if an IO error occurred
	 */
	private boolean submoduleExists(String path) throws IOException {
		TreeFilter filter = PathFilter.create(path);
		try (SubmoduleWalk w = SubmoduleWalk.forIndex(repo)) {
			return w.setFilter(filter).next();
		}
	}

	/**
	 * Add repository-relative submodule path to deinitialize
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleDeinitCommand addPath(String path) {
		paths.add(path);
		return this;
	}

	/**
	 * If {@code true}, call() will deinitialize modules with local changes;
	 * else it will refuse to do so.
	 *
	 * @param force
	 *            execute the command forcefully if there are local modifications
	 * @return {@code this}
	 */
	public SubmoduleDeinitCommand setForce(boolean force) {
		this.force = force;
		return this;
	}

	/**
	 * The user tried to deinitialize a submodule that doesn't exist in the
	 * index.
	 */
	public static class NoSuchSubmoduleException extends GitAPIException {
		private static final long serialVersionUID = 1L;

		/**
		 * Constructor of NoSuchSubmoduleException
		 *
		 * @param path
		 *            path of non-existing submodule
		 */
		public NoSuchSubmoduleException(String path) {
			super(MessageFormat.format(JGitText.get().noSuchSubmodule, path));
		}
	}

	/**
	 * The effect of a submodule deinit command for a given path
	 */
	public enum SubmoduleDeinitStatus {
		/**
		 * The submodule was not initialized in the first place
		 */
		ALREADY_DEINITIALIZED,
		/**
		 * The submodule was deinitialized
		 */
		SUCCESS,
		/**
		 * The submodule had local changes, but was deinitialized successfully
		 */
		FORCED,
		/**
		 * The submodule had local changes and force was false
		 */
		DIRTY,
	}
}
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Content-Length: 1575
Content-Disposition: inline; filename="SubmoduleDeinitResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "b7d7b66333f9ed8390e9305963b7969c2e7811ac"

/*
 * Copyright (C) 2017, Two Sigma Open Source and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

/**
 * The result of a submodule deinit command for a particular path
 *
 * @since 4.10
 */
public class SubmoduleDeinitResult {
	private String path;

	private SubmoduleDeinitCommand.SubmoduleDeinitStatus status;

	/**
	 * Constructor for SubmoduleDeinitResult
	 *
	 * @param path
	 *            path of the submodule
	 * @param status
	 *            effect of a SubmoduleDeinitCommand's execution
	 */
	public SubmoduleDeinitResult(String path,
			SubmoduleDeinitCommand.SubmoduleDeinitStatus status) {
		this.path = path;
		this.status = status;
	}

	/**
	 * Get the path of the submodule
	 *
	 * @return path of the submodule
	 */
	public String getPath() {
		return path;
	}

	/**
	 * Set the path of the submodule
	 *
	 * @param path
	 *            path of the submodule
	 */
	public void setPath(String path) {
		this.path = path;
	}

	/**
	 * Get the status of the command
	 *
	 * @return the status of the command
	 */
	public SubmoduleDeinitCommand.SubmoduleDeinitStatus getStatus() {
		return status;
	}

	/**
	 * Set the status of the command
	 *
	 * @param status
	 *            the status of the command
	 */
	public void setStatus(SubmoduleDeinitCommand.SubmoduleDeinitStatus status) {
		this.status = status;
	}
}
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Content-Length: 3193
Content-Disposition: inline; filename="SubmoduleInitCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "03b4a000ad404dbea56deedef102234787b5f437"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * A class used to execute a submodule init command.
 *
 * This will copy the 'url' and 'update' fields from the working tree
 * .gitmodules file to a repository's config file for each submodule not
 * currently present in the repository's config file.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleInitCommand extends GitCommand<Collection<String>> {

	private final Collection<String> paths;

	/**
	 * Constructor for SubmoduleInitCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public SubmoduleInitCommand(Repository repo) {
		super(repo);
		paths = new ArrayList<>();
	}

	/**
	 * Add repository-relative submodule path to initialize
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleInitCommand addPath(String path) {
		paths.add(path);
		return this;
	}

	@Override
	public Collection<String> call() throws GitAPIException {
		checkCallable();

		try (SubmoduleWalk generator = SubmoduleWalk.forIndex(repo)) {
			if (!paths.isEmpty())
				generator.setFilter(PathFilterGroup.createFromStrings(paths));
			StoredConfig config = repo.getConfig();
			List<String> initialized = new ArrayList<>();
			while (generator.next()) {
				// Ignore entry if URL is already present in config file
				if (generator.getConfigUrl() != null)
					continue;

				String path = generator.getPath();
				String name = generator.getModuleName();
				// Copy 'url' and 'update' fields from .gitmodules to config
				// file
				String url = generator.getRemoteUrl();
				String update = generator.getModulesUpdate();
				if (url != null)
					config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
							name, ConfigConstants.CONFIG_KEY_URL, url);
				if (update != null)
					config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
							name, ConfigConstants.CONFIG_KEY_UPDATE, update);
				if (url != null || update != null)
					initialized.add(path);
			}
			// Save repository config if any values were updated
			if (!initialized.isEmpty())
				config.save();
			return initialized;
		} catch (IOException | ConfigInvalidException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}
}
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Content-Length: 3747
Content-Disposition: inline; filename="SubmoduleStatusCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "d5bc0dda98a11fc0a0328be715257110397c7a09"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.submodule.SubmoduleStatus;
import org.eclipse.jgit.submodule.SubmoduleStatusType;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * A class used to execute a submodule status command.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleStatusCommand extends
		GitCommand<Map<String, SubmoduleStatus>> {

	private final Collection<String> paths;

	/**
	 * Constructor for SubmoduleStatusCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public SubmoduleStatusCommand(Repository repo) {
		super(repo);
		paths = new ArrayList<>();
	}

	/**
	 * Add repository-relative submodule path to limit status reporting to
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleStatusCommand addPath(String path) {
		paths.add(path);
		return this;
	}

	@Override
	public Map<String, SubmoduleStatus> call() throws GitAPIException {
		checkCallable();

		try (SubmoduleWalk generator = SubmoduleWalk.forIndex(repo)) {
			if (!paths.isEmpty())
				generator.setFilter(PathFilterGroup.createFromStrings(paths));
			Map<String, SubmoduleStatus> statuses = new HashMap<>();
			while (generator.next()) {
				SubmoduleStatus status = getStatus(generator);
				statuses.put(status.getPath(), status);
			}
			return statuses;
		} catch (IOException | ConfigInvalidException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}

	private SubmoduleStatus getStatus(SubmoduleWalk generator)
			throws IOException, ConfigInvalidException {
		ObjectId id = generator.getObjectId();
		String path = generator.getPath();

		// Report missing if no path in .gitmodules file
		if (generator.getModulesPath() == null)
			return new SubmoduleStatus(SubmoduleStatusType.MISSING, path, id);

		// Report uninitialized if no URL in config file
		if (generator.getConfigUrl() == null)
			return new SubmoduleStatus(SubmoduleStatusType.UNINITIALIZED, path,
					id);

		// Report uninitialized if no submodule repository
		ObjectId headId = null;
		try (Repository subRepo = generator.getRepository()) {
			if (subRepo == null) {
				return new SubmoduleStatus(SubmoduleStatusType.UNINITIALIZED,
						path, id);
			}

			headId = subRepo.resolve(Constants.HEAD);
		}

		// Report uninitialized if no HEAD commit in submodule repository
		if (headId == null)
			return new SubmoduleStatus(SubmoduleStatusType.UNINITIALIZED, path,
					id, headId);

		// Report checked out if HEAD commit is different than index commit
		if (!headId.equals(id))
			return new SubmoduleStatus(SubmoduleStatusType.REV_CHECKED_OUT,
					path, id, headId);

		// Report initialized if HEAD commit is the same as the index commit
		return new SubmoduleStatus(SubmoduleStatusType.INITIALIZED, path, id,
				headId);
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 4002
Content-Disposition: inline; filename="SubmoduleSyncCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "4f3e8512c3517153ddb5dbb6db8040b1ecf7202c"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;

/**
 * A class used to execute a submodule sync command.
 *
 * This will set the remote URL in a submodule's repository to the current value
 * in the .gitmodules file.
 *
 * @see <a href=
 *      "http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleSyncCommand extends GitCommand<Map<String, String>> {

	private final Collection<String> paths;

	/**
	 * Constructor for SubmoduleSyncCommand.
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public SubmoduleSyncCommand(Repository repo) {
		super(repo);
		paths = new ArrayList<>();
	}

	/**
	 * Add repository-relative submodule path to synchronize
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleSyncCommand addPath(String path) {
		paths.add(path);
		return this;
	}

	/**
	 * Get branch that HEAD currently points to
	 *
	 * @param subRepo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 * @return shortened branch name, null on failures
	 * @throws java.io.IOException
	 *             if an IO error occurred
	 */
	protected String getHeadBranch(Repository subRepo) throws IOException {
		Ref head = subRepo.exactRef(Constants.HEAD);
		if (head != null && head.isSymbolic()) {
			return Repository.shortenRefName(head.getLeaf().getName());
		}
		return null;
	}

	@Override
	public Map<String, String> call() throws GitAPIException {
		checkCallable();

		try (SubmoduleWalk generator = SubmoduleWalk.forIndex(repo)) {
			if (!paths.isEmpty())
				generator.setFilter(PathFilterGroup.createFromStrings(paths));
			Map<String, String> synced = new HashMap<>();
			StoredConfig config = repo.getConfig();
			while (generator.next()) {
				String remoteUrl = generator.getRemoteUrl();
				if (remoteUrl == null)
					continue;

				String path = generator.getPath();
				config.setString(ConfigConstants.CONFIG_SUBMODULE_SECTION,
						path, ConfigConstants.CONFIG_KEY_URL, remoteUrl);
				synced.put(path, remoteUrl);

				try (Repository subRepo = generator.getRepository()) {
					if (subRepo == null) {
						continue;
					}

					StoredConfig subConfig;
					String branch;

					subConfig = subRepo.getConfig();
					// Get name of remote associated with current branch and
					// fall back to default remote name as last resort
					branch = getHeadBranch(subRepo);
					String remote = null;
					if (branch != null) {
						remote = subConfig.getString(
								ConfigConstants.CONFIG_BRANCH_SECTION, branch,
								ConfigConstants.CONFIG_KEY_REMOTE);
					}
					if (remote == null) {
						remote = Constants.DEFAULT_REMOTE_NAME;
					}

					subConfig.setString(ConfigConstants.CONFIG_REMOTE_SECTION,
							remote, ConfigConstants.CONFIG_KEY_URL, remoteUrl);
					subConfig.save();
				}
			}
			if (!synced.isEmpty())
				config.save();
			return synced;
		} catch (IOException | ConfigInvalidException e) {
			throw new JGitInternalException(e.getMessage(), e);
		}
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 9570
Content-Disposition: inline; filename="SubmoduleUpdateCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "5e4b2ee0b7e269096bc75195f31d777d66875b74"

/*
 * Copyright (C) 2011, GitHub Inc.
 * Copyright (C) 2016, Laurent Delaigue <laurent.delaigue@obeo.fr> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.jgit.api.errors.CheckoutConflictException;
import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidConfigurationException;
import org.eclipse.jgit.api.errors.InvalidMergeHeadsException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.NoMessageException;
import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
import org.eclipse.jgit.dircache.DirCacheCheckout;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.internal.storage.file.LockFile;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.submodule.SubmoduleWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
import org.eclipse.jgit.util.FileUtils;

/**
 * A class used to execute a submodule update command.
 *
 * @see <a
 *      href="http://www.kernel.org/pub/software/scm/git/docs/git-submodule.html"
 *      >Git documentation about submodules</a>
 */
public class SubmoduleUpdateCommand extends
		TransportCommand<SubmoduleUpdateCommand, Collection<String>> {

	private ProgressMonitor monitor;

	private final Collection<String> paths;

	private MergeStrategy strategy = MergeStrategy.RECURSIVE;

	private CloneCommand.Callback callback;

	private FetchCommand.Callback fetchCallback;

	private boolean fetch = false;

	private boolean clonedRestored;

	/**
	 * <p>
	 * Constructor for SubmoduleUpdateCommand.
	 * </p>
	 *
	 * @param repo
	 *            a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	public SubmoduleUpdateCommand(Repository repo) {
		super(repo);
		paths = new ArrayList<>();
	}

	/**
	 * The progress monitor associated with the clone operation. By default,
	 * this is set to <code>NullProgressMonitor</code>
	 *
	 * @see NullProgressMonitor
	 * @param monitor
	 *            a {@link org.eclipse.jgit.lib.ProgressMonitor} object.
	 * @return this command
	 */
	public SubmoduleUpdateCommand setProgressMonitor(
			final ProgressMonitor monitor) {
		this.monitor = monitor;
		return this;
	}

	/**
	 * Whether to fetch the submodules before we update them. By default, this
	 * is set to <code>false</code>
	 *
	 * @param fetch
	 *            whether to fetch the submodules before we update them
	 * @return this command
	 * @since 4.9
	 */
	public SubmoduleUpdateCommand setFetch(boolean fetch) {
		this.fetch = fetch;
		return this;
	}

	/**
	 * Add repository-relative submodule path to initialize
	 *
	 * @param path
	 *            (with <code>/</code> as separator)
	 * @return this command
	 */
	public SubmoduleUpdateCommand addPath(String path) {
		paths.add(path);
		return this;
	}

	private static boolean submoduleExists(File gitDir) {
		if (gitDir != null && gitDir.isDirectory()) {
			File[] files = gitDir.listFiles();
			return files != null && files.length != 0;
		}
		return false;
	}

	private static void restoreSubmodule(File gitDir, File workingTree)
			throws IOException {
		LockFile dotGitLock = new LockFile(
				new File(workingTree, Constants.DOT_GIT));
		if (dotGitLock.lock()) {
			String content = Constants.GITDIR
					+ getRelativePath(gitDir, workingTree);
			dotGitLock.write(Constants.encode(content));
			dotGitLock.commit();
		}
	}

	private static String getRelativePath(File gitDir, File workingTree) {
		File relPath;
		try {
			relPath = workingTree.toPath().relativize(gitDir.toPath())
					.toFile();
		} catch (IllegalArgumentException e) {
			relPath = gitDir;
		}
		return FileUtils.pathToString(relPath);
	}

	private String determineUpdateMode(String mode) {
		if (clonedRestored) {
			return ConfigConstants.CONFIG_KEY_CHECKOUT;
		}
		return mode;
	}

	private Repository getOrCloneSubmodule(SubmoduleWalk generator, String url)
			throws IOException, GitAPIException {
		Repository repository = generator.getRepository();
		boolean restored = false;
		boolean cloned = false;
		if (repository == null) {
			File gitDir = new File(
					new File(repo.getCommonDirectory(), Constants.MODULES),
					generator.getPath());
			if (submoduleExists(gitDir)) {
				restoreSubmodule(gitDir, generator.getDirectory());
				restored = true;
				clonedRestored = true;
				repository = generator.getRepository();
			} else {
				if (callback != null) {
					callback.cloningSubmodule(generator.getPath());
				}
				CloneCommand clone = Git.cloneRepository();
				configure(clone);
				clone.setURI(url);
				clone.setDirectory(generator.getDirectory());
				clone.setGitDir(gitDir);
				clone.setRelativePaths(true);
				if (monitor != null) {
					clone.setProgressMonitor(monitor);
				}
				repository = clone.call().getRepository();
				cloned = true;
				clonedRestored = true;
			}
		}
		if ((this.fetch || restored) && !cloned) {
			if (fetchCallback != null) {
				fetchCallback.fetchingSubmodule(generator.getPath());
			}
			FetchCommand fetchCommand = Git.wrap(repository).fetch();
			if (monitor != null) {
				fetchCommand.setProgressMonitor(monitor);
			}
			configure(fetchCommand);
			fetchCommand.call();
		}
		return repository;
	}

	/**
	 * {@inheritDoc}
	 *
	 * Execute the SubmoduleUpdateCommand command.
	 */
	@Override
	public Collection<String> call() throws InvalidConfigurationException,
			NoHeadException, ConcurrentRefUpdateException,
			CheckoutConflictException, InvalidMergeHeadsException,
			WrongRepositoryStateException, NoMessageException, NoHeadException,
			RefNotFoundException, GitAPIException {
		checkCallable();

		try (SubmoduleWalk generator = SubmoduleWalk.forIndex(repo)) {
			if (!paths.isEmpty())
				generator.setFilter(PathFilterGroup.createFromStrings(paths));
			List<String> updated = new ArrayList<>();
			while (generator.next()) {
				// Skip submodules not registered in .gitmodules file
				if (generator.getModulesPath() == null)
					continue;
				// Skip submodules not registered in parent repository's config
				String url = generator.getConfigUrl();
				if (url == null) {
					continue;
				}
				clonedRestored = false;
				try (Repository submoduleRepo = getOrCloneSubmodule(generator,
						url); RevWalk walk = new RevWalk(submoduleRepo)) {
					RevCommit commit = walk
							.parseCommit(generator.getObjectId());

					String update = determineUpdateMode(
							generator.getConfigUpdate());
					if (ConfigConstants.CONFIG_KEY_MERGE.equals(update)) {
						MergeCommand merge = new MergeCommand(submoduleRepo);
						merge.include(commit);
						merge.setProgressMonitor(monitor);
						merge.setStrategy(strategy);
						merge.call();
					} else if (ConfigConstants.CONFIG_KEY_REBASE.equals(update)) {
						RebaseCommand rebase = new RebaseCommand(submoduleRepo);
						rebase.setUpstream(commit);
						rebase.setProgressMonitor(monitor);
						rebase.setStrategy(strategy);
						rebase.call();
					} else {
						// Checkout commit referenced in parent repository's
						// index as a detached HEAD
						DirCacheCheckout co = new DirCacheCheckout(
								submoduleRepo, submoduleRepo.lockDirCache(),
								commit.getTree());
						co.setFailOnConflict(true);
						co.setProgressMonitor(monitor);
						co.checkout();
						RefUpdate refUpdate = submoduleRepo.updateRef(
								Constants.HEAD, true);
						refUpdate.setNewObjectId(commit);
						refUpdate.forceUpdate();
						if (callback != null) {
							callback.checkingOut(commit,
									generator.getPath());
						}
					}
				}
				updated.add(generator.getPath());
			}
			return updated;
		} catch (IOException e) {
			throw new JGitInternalException(e.getMessage(), e);
		} catch (ConfigInvalidException e) {
			throw new InvalidConfigurationException(e.getMessage(), e);
		}
	}

	/**
	 * Setter for the field <code>strategy</code>.
	 *
	 * @param strategy
	 *            The merge strategy to use during this update operation.
	 * @return {@code this}
	 * @since 3.4
	 */
	public SubmoduleUpdateCommand setStrategy(MergeStrategy strategy) {
		this.strategy = strategy;
		return this;
	}

	/**
	 * Set status callback for submodule clone operation.
	 *
	 * @param callback
	 *            the callback
	 * @return {@code this}
	 * @since 4.8
	 */
	public SubmoduleUpdateCommand setCallback(CloneCommand.Callback callback) {
		this.callback = callback;
		return this;
	}

	/**
	 * Set status callback for submodule fetch operation.
	 *
	 * @param callback
	 *            the callback
	 * @return {@code this}
	 * @since 4.9
	 */
	public SubmoduleUpdateCommand setFetchCallback(
			FetchCommand.Callback callback) {
		this.fetchCallback = callback;
		return this;
	}
}
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 13506
Content-Disposition: inline; filename="TagCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "cc8589fa1c5acf68ab12239a6419e199ad16c799"

/*
 * Copyright (C) 2010, 2020 Chris Aniszczyk <caniszczyk@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.text.MessageFormat;

import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.InvalidTagNameException;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.NoHeadException;
import org.eclipse.jgit.api.errors.RefAlreadyExistsException;
import org.eclipse.jgit.api.errors.UnsupportedSigningFormatException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.GpgConfig;
import org.eclipse.jgit.lib.GpgConfig.GpgFormat;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectInserter;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.Signer;
import org.eclipse.jgit.lib.Signers;
import org.eclipse.jgit.lib.TagBuilder;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.CredentialsProvider;

/**
 * Create/update an annotated tag object or a simple unannotated tag
 * <p>
 * Examples (<code>git</code> is a {@link org.eclipse.jgit.api.Git} instance):
 * <p>
 * Create a new tag for the current commit:
 *
 * <pre>
 * git.tag().setName(&quot;v1.0&quot;).setMessage(&quot;First stable release&quot;).call();
 * </pre>
 * <p>
 *
 * Create a new unannotated tag for the current commit:
 *
 * <pre>
 * git.tag().setName(&quot;v1.0&quot;).setAnnotated(false).call();
 * </pre>
 *
 * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-tag.html"
 *      >Git documentation about Tag</a>
 */
public class TagCommand extends GitCommand<Ref> {

	private RevObject id;

	private String name;

	private String message;

	private PersonIdent tagger;

	private Boolean signed;

	private boolean forceUpdate;

	private Boolean annotated;

	private String signingKey;

	private GpgConfig gpgConfig;

	private Signer signer;

	private CredentialsProvider credentialsProvider;

	/**
	 * <p>Constructor for TagCommand.</p>
	 *
	 * @param repo a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected TagCommand(Repository repo) {
		super(repo);
		this.credentialsProvider = CredentialsProvider.getDefault();
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * Executes the {@code tag} command with all the options and parameters
	 * collected by the setter methods of this class. Each instance of this
	 * class should only be used for one invocation of the command (means: one
	 * call to {@link #call()})
	 *
	 * @since 2.0
	 */
	@Override
	public Ref call() throws GitAPIException, ConcurrentRefUpdateException,
			InvalidTagNameException, NoHeadException {
		checkCallable();
		processOptions();

		try (RevWalk revWalk = new RevWalk(repo)) {
			// if no id is set, we should attempt to use HEAD
			if (id == null) {
				ObjectId objectId = repo.resolve(Constants.HEAD + "^{commit}"); //$NON-NLS-1$
				if (objectId == null)
					throw new NoHeadException(
							JGitText.get().tagOnRepoWithoutHEADCurrentlyNotSupported);

				id = revWalk.parseCommit(objectId);
			}

			if (!isAnnotated()) {
				return updateTagRef(id, revWalk, name,
						"SimpleTag[" + name + " : " + id //$NON-NLS-1$ //$NON-NLS-2$
								+ "]"); //$NON-NLS-1$
			}

			// create the tag object
			TagBuilder newTag = new TagBuilder();
			newTag.setTag(name);
			newTag.setMessage(message);
			newTag.setTagger(tagger);
			newTag.setObjectId(id);

			if (signer != null) {
				signer.signObject(repo, gpgConfig, newTag, tagger, signingKey,
						credentialsProvider);
			}

			// write the tag object
			try (ObjectInserter inserter = repo.newObjectInserter()) {
				ObjectId tagId = inserter.insert(newTag);
				inserter.flush();

				String tag = newTag.getTag();
				return updateTagRef(tagId, revWalk, tag, newTag.toString());

			}

		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().exceptionCaughtDuringExecutionOfTagCommand,
					e);
		}
	}

	private Ref updateTagRef(ObjectId tagId, RevWalk revWalk,
			String tagName, String newTagToString) throws IOException,
			ConcurrentRefUpdateException, RefAlreadyExistsException {
		String refName = Constants.R_TAGS + tagName;
		RefUpdate tagRef = repo.updateRef(refName);
		tagRef.setNewObjectId(tagId);
		tagRef.setForceUpdate(forceUpdate);
		tagRef.setRefLogMessage("tagged " + name, false); //$NON-NLS-1$
		Result updateResult = tagRef.update(revWalk);
		switch (updateResult) {
		case NEW:
		case FORCED:
			return repo.exactRef(refName);
		case LOCK_FAILURE:
			throw new ConcurrentRefUpdateException(
					JGitText.get().couldNotLockHEAD, tagRef.getRef(),
					updateResult);
		case NO_CHANGE:
			if (forceUpdate) {
				return repo.exactRef(refName);
			}
			throw new RefAlreadyExistsException(MessageFormat
					.format(JGitText.get().tagAlreadyExists, newTagToString),
					updateResult);
		case REJECTED:
			throw new RefAlreadyExistsException(MessageFormat.format(
					JGitText.get().tagAlreadyExists, newTagToString),
					updateResult);
		default:
			throw new JGitInternalException(MessageFormat.format(
					JGitText.get().updatingRefFailed, refName, newTagToString,
					updateResult));
		}
	}

	/**
	 * Sets default values for not explicitly specified options. Then validates
	 * that all required data has been provided.
	 *
	 * @throws InvalidTagNameException
	 *             if the tag name is null or invalid
	 * @throws UnsupportedSigningFormatException
	 *             if the tag should be signed but {@code gpg.format} is not
	 *             {@link GpgFormat#OPENPGP}
	 */
	private void processOptions()
			throws InvalidTagNameException, UnsupportedSigningFormatException {
		if (name == null
				|| !Repository.isValidRefName(Constants.R_TAGS + name)) {
			throw new InvalidTagNameException(
					MessageFormat.format(JGitText.get().tagNameInvalid,
							name == null ? "<null>" : name)); //$NON-NLS-1$
		}
		if (!isAnnotated()) {
			if ((message != null && !message.isEmpty()) || tagger != null) {
				throw new JGitInternalException(JGitText
						.get().messageAndTaggerNotAllowedInUnannotatedTags);
			}
		} else {
			if (tagger == null) {
				tagger = new PersonIdent(repo);
			}
			// Figure out whether to sign.
			if (!(Boolean.FALSE.equals(signed) && signingKey == null)) {
				if (gpgConfig == null) {
					gpgConfig = new GpgConfig(repo.getConfig());
				}
				boolean doSign = isSigned() || gpgConfig.isSignAllTags();
				if (!Boolean.TRUE.equals(annotated) && !doSign) {
					doSign = gpgConfig.isSignAnnotated();
				}
				if (doSign) {
					if (signer == null) {
						signer = Signers.get(gpgConfig.getKeyFormat());
						if (signer == null) {
							throw new UnsupportedSigningFormatException(
									MessageFormat.format(
											JGitText.get().signatureTypeUnknown,
											gpgConfig.getKeyFormat()
													.toConfigValue()));
						}
					}
					// The message of a signed tag must end in a newline because
					// the signature will be appended.
					if (message != null && !message.isEmpty()
							&& !message.endsWith("\n")) { //$NON-NLS-1$
						message += '\n';
					}
				}
			}
		}
	}

	/**
	 * Set the tag <code>name</code>.
	 *
	 * @param name
	 *            the tag name used for the {@code tag}
	 * @return {@code this}
	 */
	public TagCommand setName(String name) {
		checkCallable();
		this.name = name;
		return this;
	}

	/**
	 * Get the tag <code>name</code>.
	 *
	 * @return the tag name used for the <code>tag</code>
	 */
	public String getName() {
		return name;
	}

	/**
	 * Get the tag <code>message</code>.
	 *
	 * @return the tag message used for the <code>tag</code>
	 */
	public String getMessage() {
		return message;
	}

	/**
	 * Set the tag <code>message</code>.
	 *
	 * @param message
	 *            the tag message used for the {@code tag}
	 * @return {@code this}
	 */
	public TagCommand setMessage(String message) {
		checkCallable();
		this.message = message;
		return this;
	}

	/**
	 * Whether {@link #setSigned(boolean) setSigned(true)} has been called or
	 * whether a {@link #setSigningKey(String) signing key ID} has been set;
	 * i.e., whether -s or -u was specified explicitly.
	 *
	 * @return whether the tag is signed
	 */
	public boolean isSigned() {
		return Boolean.TRUE.equals(signed) || signingKey != null;
	}

	/**
	 * If set to true the Tag command creates a signed tag object. This
	 * corresponds to the parameter -s (--sign or --no-sign) on the command
	 * line.
	 * <p>
	 * If {@code true}, the tag will be a signed annotated tag.
	 * </p>
	 *
	 * @param signed
	 *            whether to sign
	 * @return {@code this}
	 */
	public TagCommand setSigned(boolean signed) {
		checkCallable();
		this.signed = Boolean.valueOf(signed);
		return this;
	}

	/**
	 * Sets the {@link Signer} to use if the commit is to be signed.
	 *
	 * @param signer
	 *            to use; if {@code null}, the default signer will be used
	 * @return {@code this}
	 * @since 7.0
	 */
	public TagCommand setSigner(Signer signer) {
		checkCallable();
		this.signer = signer;
		return this;
	}

	/**
	 * Sets an external {@link GpgConfig} to use. Whether it will be used is at
	 * the discretion of the {@link #setSigner(Signer)}.
	 *
	 * @param config
	 *            to set; if {@code null}, the config will be loaded from the
	 *            git config of the repository
	 * @return {@code this}
	 * @since 5.11
	 */
	public TagCommand setGpgConfig(GpgConfig config) {
		checkCallable();
		this.gpgConfig = config;
		return this;
	}

	/**
	 * Sets the tagger of the tag. If the tagger is null, a PersonIdent will be
	 * created from the info in the repository.
	 *
	 * @param tagger
	 *            a {@link org.eclipse.jgit.lib.PersonIdent} object.
	 * @return {@code this}
	 */
	public TagCommand setTagger(PersonIdent tagger) {
		checkCallable();
		this.tagger = tagger;
		return this;
	}

	/**
	 * Get the <code>tagger</code> who created the tag.
	 *
	 * @return the tagger of the tag
	 */
	public PersonIdent getTagger() {
		return tagger;
	}

	/**
	 * Get the tag's object id
	 *
	 * @return the object id of the tag
	 */
	public RevObject getObjectId() {
		return id;
	}

	/**
	 * Sets the object id of the tag. If the object id is {@code null}, the
	 * commit pointed to from HEAD will be used.
	 *
	 * @param id
	 *            a {@link org.eclipse.jgit.revwalk.RevObject} object.
	 * @return {@code this}
	 */
	public TagCommand setObjectId(RevObject id) {
		checkCallable();
		this.id = id;
		return this;
	}

	/**
	 * Whether this is a forced update
	 *
	 * @return is this a force update
	 */
	public boolean isForceUpdate() {
		return forceUpdate;
	}

	/**
	 * If set to true the Tag command may replace an existing tag object. This
	 * corresponds to the parameter -f on the command line.
	 *
	 * @param forceUpdate
	 *            whether this is a forced update
	 * @return {@code this}
	 */
	public TagCommand setForceUpdate(boolean forceUpdate) {
		checkCallable();
		this.forceUpdate = forceUpdate;
		return this;
	}

	/**
	 * Configure this tag to be created as an annotated tag
	 *
	 * @param annotated
	 *            whether this shall be an annotated tag
	 * @return {@code this}
	 * @since 3.0
	 */
	public TagCommand setAnnotated(boolean annotated) {
		checkCallable();
		this.annotated = Boolean.valueOf(annotated);
		return this;
	}

	/**
	 * Whether this will create an annotated tag.
	 *
	 * @return true if this command will create an annotated tag (default is
	 *         true)
	 * @since 3.0
	 */
	public boolean isAnnotated() {
		boolean setExplicitly = Boolean.TRUE.equals(annotated) || isSigned();
		if (setExplicitly) {
			return true;
		}
		// Annotated at default (not set explicitly)
		return annotated == null;
	}

	/**
	 * Sets the signing key.
	 * <p>
	 * Per spec of {@code user.signingKey}: this will be sent to the GPG program
	 * as is, i.e. can be anything supported by the GPG program.
	 * </p>
	 * <p>
	 * Note, if none was set or {@code null} is specified a default will be
	 * obtained from the configuration.
	 * </p>
	 * <p>
	 * If set to a non-{@code null} value, the tag will be a signed annotated
	 * tag.
	 * </p>
	 *
	 * @param signingKey
	 *            signing key; {@code null} allowed
	 * @return {@code this}
	 * @since 5.11
	 */
	public TagCommand setSigningKey(String signingKey) {
		checkCallable();
		this.signingKey = signingKey;
		return this;
	}

	/**
	 * Retrieves the signing key ID.
	 *
	 * @return the key ID set, or {@code null} if none is set
	 * @since 5.11
	 */
	public String getSigningKey() {
		return signingKey;
	}

	/**
	 * Sets a {@link CredentialsProvider}
	 *
	 * @param credentialsProvider
	 *            the provider to use when querying for credentials (eg., during
	 *            signing)
	 * @return {@code this}
	 * @since 5.11
	 */
	public TagCommand setCredentialsProvider(
			CredentialsProvider credentialsProvider) {
		checkCallable();
		this.credentialsProvider = credentialsProvider;
		return this;
	}

}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 4074
Content-Disposition: inline; filename="TransportCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "30f1bc9cc6915d8d3374d77493dddc6fd7a00f33"

/*
 * Copyright (C) 2011, GitHub Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.CredentialsProvider;
import org.eclipse.jgit.transport.Transport;

/**
 * Base class for commands that use a
 * {@link org.eclipse.jgit.transport.Transport} during execution.
 * <p>
 * This class provides standard configuration of a transport for options such as
 * a {@link org.eclipse.jgit.transport.CredentialsProvider}, a timeout, and a
 * {@link org.eclipse.jgit.api.TransportConfigCallback}.
 *
 * @param <C>
 *            concrete type of this {@code GitCommand}
 * @param <T>
 *            the return type of the {@code GitCommand}'s {@code call()} method
 */
public abstract class TransportCommand<C extends GitCommand, T> extends
		GitCommand<T> {

	/**
	 * Configured credentials provider
	 */
	protected CredentialsProvider credentialsProvider;

	/**
	 * Configured transport timeout
	 */
	protected int timeout;

	/**
	 * Configured callback for transport configuration
	 */
	protected TransportConfigCallback transportConfigCallback;

	/**
	 * <p>Constructor for TransportCommand.</p>
	 *
	 * @param repo a {@link org.eclipse.jgit.lib.Repository} object.
	 */
	protected TransportCommand(Repository repo) {
		super(repo);
		setCredentialsProvider(CredentialsProvider.getDefault());
	}

	/**
	 * Set the <code>credentialsProvider</code>.
	 *
	 * @param credentialsProvider
	 *            the {@link org.eclipse.jgit.transport.CredentialsProvider} to
	 *            use
	 * @return {@code this}
	 */
	public C setCredentialsProvider(
			final CredentialsProvider credentialsProvider) {
		this.credentialsProvider = credentialsProvider;
		return self();
	}

	/**
	 * Set <code>timeout</code>.
	 *
	 * @param timeout
	 *            the timeout (in seconds) used for the transport step
	 * @return {@code this}
	 */
	public C setTimeout(int timeout) {
		this.timeout = timeout;
		return self();
	}

	/**
	 * Set the <code>TransportConfigCallback</code>.
	 *
	 * @param transportConfigCallback
	 *            if set, the callback will be invoked after the
	 *            {@link org.eclipse.jgit.transport.Transport} has created, but
	 *            before the {@link org.eclipse.jgit.transport.Transport} is
	 *            used. The callback can use this opportunity to set additional
	 *            type-specific configuration on the
	 *            {@link org.eclipse.jgit.transport.Transport} instance.
	 * @return {@code this}
	 */
	public C setTransportConfigCallback(
			final TransportConfigCallback transportConfigCallback) {
		this.transportConfigCallback = transportConfigCallback;
		return self();
	}

	/**
	 * Return this command cast to {@code C}
	 *
	 * @return {@code this} cast to {@code C}
	 */
	@SuppressWarnings("unchecked")
	protected final C self() {
		return (C) this;
	}

	/**
	 * Configure transport with credentials provider, timeout, and config
	 * callback
	 *
	 * @param transport
	 *            a {@link org.eclipse.jgit.transport.Transport} object.
	 * @return {@code this}
	 */
	protected C configure(Transport transport) {
		if (credentialsProvider != null)
			transport.setCredentialsProvider(credentialsProvider);
		transport.setTimeout(timeout);
		if (transportConfigCallback != null)
			transportConfigCallback.configure(transport);
		return self();
	}

	/**
	 * Configure a child command with the current configuration set in
	 * {@code this} command
	 *
	 * @param childCommand
	 *            a {@link org.eclipse.jgit.api.TransportCommand} object.
	 * @return {@code this}
	 */
	protected C configure(TransportCommand childCommand) {
		childCommand.setCredentialsProvider(credentialsProvider);
		childCommand.setTimeout(timeout);
		childCommand.setTransportConfigCallback(transportConfigCallback);
		return self();
	}
}
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Content-Type: text/plain; charset=UTF-8
Content-Length: 1369
Content-Disposition: inline; filename="TransportConfigCallback.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "889dc2f426a77d9a610e52ced1f60943b362ddbe"

/*
 * Copyright (C) 2011, Roberto Tyley <roberto.tyley@gmail.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.api;

import org.eclipse.jgit.transport.Transport;

/**
 * Receives a callback allowing type-specific configuration to be set
 * on the Transport instance after it's been created.
 * <p>
 * This allows consumers of the JGit command API to perform custom
 * configuration that would be difficult anticipate and expose on the
 * API command builders.
 * <p>
 * For instance, if a client needs to replace the SshSessionFactorys
 * on any SSHTransport used (eg to control available SSH identities),
 * they can set the TransportConfigCallback on the JGit API command -
 * once the transport has been created by the command, the callback
 * will be invoked and passed the transport instance, which the
 * client can then inspect and configure as necessary.
 */
public interface TransportConfigCallback {

	/**
	 * Add any additional transport-specific configuration required.
	 *
	 * @param transport
	 *            a {@link org.eclipse.jgit.transport.Transport} object.
	 */
	void configure(Transport transport);
}
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Content-Length: 1162
Content-Disposition: inline; filename="VerificationResult.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f5f4b06e4598ee9c17f1e90810ea6d0c9670a15f"

/*
 * Copyright (C) 2021, Thomas Wolf <thomas.wolf@paranor.ch> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import org.eclipse.jgit.lib.SignatureVerifier;
import org.eclipse.jgit.revwalk.RevObject;

/**
 * A {@code VerificationResult} describes the outcome of a signature
 * verification.
 *
 * @see VerifySignatureCommand
 *
 * @since 5.11
 */
public interface VerificationResult {

	/**
	 * If an error occurred during signature verification, this retrieves the
	 * exception.
	 *
	 * @return the exception, or {@code null} if none occurred
	 */
	Throwable getException();

	/**
	 * Retrieves the signature verification result.
	 *
	 * @return the result, or {@code null} if none was computed
	 * @since 7.0
	 */
	SignatureVerifier.SignatureVerification getVerification();

	/**
	 * Retrieves the git object of which the signature was verified.
	 *
	 * @return the git object
	 */
	RevObject getObject();
}
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Content-Length: 7074
Content-Disposition: inline; filename="VerifySignatureCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "487ff043237ebadbfb54bf8232534970a6f509d0"

/*
 * Copyright (C) 2021, Thomas Wolf <thomas.wolf@paranor.ch> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package org.eclipse.jgit.api;

import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.api.errors.JGitInternalException;
import org.eclipse.jgit.api.errors.ServiceUnavailableException;
import org.eclipse.jgit.api.errors.WrongObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.GpgConfig;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.SignatureVerifier.SignatureVerification;
import org.eclipse.jgit.lib.SignatureVerifiers;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * A command to verify GPG signatures on tags or commits.
 *
 * @since 5.11
 */
public class VerifySignatureCommand extends GitCommand<Map<String, VerificationResult>> {

	/**
	 * Describes what kind of objects shall be handled by a
	 * {@link VerifySignatureCommand}.
	 */
	public enum VerifyMode {
		/**
		 * Handle any object type, ignore anything that is not a commit or tag.
		 */
		ANY,
		/**
		 * Handle only commits; throw a {@link WrongObjectTypeException} for
		 * anything else.
		 */
		COMMITS,
		/**
		 * Handle only tags; throw a {@link WrongObjectTypeException} for
		 * anything else.
		 */
		TAGS
	}

	private final Set<String> namesToCheck = new HashSet<>();

	private VerifyMode mode = VerifyMode.ANY;

	private GpgConfig config;

	/**
	 * Creates a new {@link VerifySignatureCommand} for the given {@link Repository}.
	 *
	 * @param repo
	 *            to operate on
	 */
	public VerifySignatureCommand(Repository repo) {
		super(repo);
	}

	/**
	 * Add a name of an object (SHA-1, ref name; anything that can be
	 * {@link Repository#resolve(String) resolved}) to the command to have its
	 * signature verified.
	 *
	 * @param name
	 *            to add
	 * @return {@code this}
	 */
	public VerifySignatureCommand addName(String name) {
		checkCallable();
		namesToCheck.add(name);
		return this;
	}

	/**
	 * Add names of objects (SHA-1, ref name; anything that can be
	 * {@link Repository#resolve(String) resolved}) to the command to have their
	 * signatures verified.
	 *
	 * @param names
	 *            to add; duplicates will be ignored
	 * @return {@code this}
	 */
	public VerifySignatureCommand addNames(String... names) {
		checkCallable();
		namesToCheck.addAll(Arrays.asList(names));
		return this;
	}

	/**
	 * Add names of objects (SHA-1, ref name; anything that can be
	 * {@link Repository#resolve(String) resolved}) to the command to have their
	 * signatures verified.
	 *
	 * @param names
	 *            to add; duplicates will be ignored
	 * @return {@code this}
	 */
	public VerifySignatureCommand addNames(Collection<String> names) {
		checkCallable();
		namesToCheck.addAll(names);
		return this;
	}

	/**
	 * Sets the mode of operation for this command.
	 *
	 * @param mode
	 *            the {@link VerifyMode} to set
	 * @return {@code this}
	 */
	public VerifySignatureCommand setMode(@NonNull VerifyMode mode) {
		checkCallable();
		this.mode = mode;
		return this;
	}

	/**
	 * Sets an external {@link GpgConfig} to use.
	 *
	 * @param config
	 *            to set; if {@code null}, the config will be loaded from the
	 *            git config of the repository
	 * @return {@code this}
	 * @since 5.11
	 */
	public VerifySignatureCommand setGpgConfig(GpgConfig config) {
		checkCallable();
		this.config = config;
		return this;
	}

	/**
	 * {@link Repository#resolve(String) Resolves} all names added to the
	 * command to git objects and verifies their signature. Non-existing objects
	 * are ignored.
	 * <p>
	 * Depending on the {@link #setMode(VerifyMode)}, only tags or commits or
	 * any kind of objects are allowed.
	 * </p>
	 * <p>
	 * Unsigned objects are silently skipped.
	 * </p>
	 *
	 * @return a map of the given names to the corresponding
	 *         {@link VerificationResult}, excluding ignored or skipped objects.
	 * @throws WrongObjectTypeException
	 *             if a name resolves to an object of a type not allowed by the
	 *             {@link #setMode(VerifyMode)} mode
	 */
	@Override
	@NonNull
	public Map<String, VerificationResult> call()
			throws ServiceUnavailableException, WrongObjectTypeException {
		checkCallable();
		setCallable(false);
		Map<String, VerificationResult> result = new HashMap<>();
		if (config == null) {
			config = new GpgConfig(repo.getConfig());
		}
		try (RevWalk walk = new RevWalk(repo)) {
			for (String toCheck : namesToCheck) {
				ObjectId id = repo.resolve(toCheck);
				if (id != null && !ObjectId.zeroId().equals(id)) {
					RevObject object;
					try {
						object = walk.parseAny(id);
					} catch (MissingObjectException e) {
						continue;
					}
					VerificationResult verification = verifyOne(object);
					if (verification != null) {
						result.put(toCheck, verification);
					}
				}
			}
		} catch (IOException e) {
			throw new JGitInternalException(
					JGitText.get().signatureVerificationError, e);
		}
		return result;
	}

	private VerificationResult verifyOne(RevObject object)
			throws WrongObjectTypeException, IOException {
		int type = object.getType();
		if (VerifyMode.TAGS.equals(mode) && type != Constants.OBJ_TAG) {
			throw new WrongObjectTypeException(object, Constants.OBJ_TAG);
		} else if (VerifyMode.COMMITS.equals(mode)
				&& type != Constants.OBJ_COMMIT) {
			throw new WrongObjectTypeException(object, Constants.OBJ_COMMIT);
		}
		if (type == Constants.OBJ_COMMIT || type == Constants.OBJ_TAG) {
			try {
				SignatureVerification verification = SignatureVerifiers
						.verify(repo, config, object);
				if (verification == null) {
					// Not signed
					return null;
				}
				// Create new result
				return new Result(object, verification, null);
			} catch (JGitInternalException e) {
				return new Result(object, null, e);
			}
		}
		return null;
	}

	private static class Result implements VerificationResult {

		private final Throwable throwable;

		private final SignatureVerification verification;

		private final RevObject object;

		public Result(RevObject object, SignatureVerification verification,
				Throwable throwable) {
			this.object = object;
			this.verification = verification;
			this.throwable = throwable;
		}

		@Override
		public Throwable getException() {
			return throwable;
		}

		@Override
		public SignatureVerification getVerification() {
			return verification;
		}

		@Override
		public RevObject getObject() {
			return object;
		}

	}
}
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Content-Length: 7074
Content-Disposition: inline; filename="VerifySignatureCommand.java"
Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "6661f1cc1b0be7d5baf2f4251e504621e1d36aec"

<html><head><title>/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/</title></head>
<body>
<h2>/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/</h2>
<ul>
<li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/'>../</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/AbortedByHookException.java'>AbortedByHookException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/CanceledException.java'>CanceledException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/CannotDeleteCurrentBranchException.java'>CannotDeleteCurrentBranchException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/CheckoutConflictException.java'>CheckoutConflictException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/ConcurrentRefUpdateException.java'>ConcurrentRefUpdateException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/DetachedHeadException.java'>DetachedHeadException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/EmptyCommitException.java'>EmptyCommitException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/FilterFailedException.java'>FilterFailedException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/GitAPIException.java'>GitAPIException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidConfigurationException.java'>InvalidConfigurationException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidMergeHeadsException.java'>InvalidMergeHeadsException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidRebaseStepException.java'>InvalidRebaseStepException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidRefNameException.java'>InvalidRefNameException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidRemoteException.java'>InvalidRemoteException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/InvalidTagNameException.java'>InvalidTagNameException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/JGitInternalException.java'>JGitInternalException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/MultipleParentsNotAllowedException.java'>MultipleParentsNotAllowedException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/NoFilepatternException.java'>NoFilepatternException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/NoHeadException.java'>NoHeadException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/NoMessageException.java'>NoMessageException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/NotMergedException.java'>NotMergedException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/PatchApplyException.java'>PatchApplyException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/PatchFormatException.java'>PatchFormatException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/RefAlreadyExistsException.java'>RefAlreadyExistsException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/RefNotAdvertisedException.java'>RefNotAdvertisedException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/RefNotFoundException.java'>RefNotFoundException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/ServiceUnavailableException.java'>ServiceUnavailableException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/StashApplyFailureException.java'>StashApplyFailureException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/TooLargeObjectInPackException.java'>TooLargeObjectInPackException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/TooLargePackException.java'>TooLargePackException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/TransportException.java'>TransportException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/UnmergedPathsException.java'>UnmergedPathsException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/UnsupportedSigningFormatException.java'>UnsupportedSigningFormatException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/WrongObjectTypeException.java'>WrongObjectTypeException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/WrongRepositoryStateException.java'>WrongRepositoryStateException.java</a></li>
  <li><a href='/jgit.git/plain/org.eclipse.jgit/src/org/eclipse/jgit/api/errors/package-info.java'>package-info.java</a></li>
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Last-Modified: Sat, 26 Jul 2025 13:55:00 GMT
Expires: Sat, 26 Jul 2025 14:00:00 GMT
ETag: "f1e6571d500d4fc7fe14e834021f3c0e126eb1b0"

/**
 * High-level API commands (the porcelain of JGit).
 */
package org.eclipse.jgit.api;