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/*
* 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.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;
/**
* {@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())
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;
}
}
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