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- /*
- * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
- * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.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.io.IOException;
- import java.text.MessageFormat;
-
- import org.eclipse.jgit.JGitText;
- import org.eclipse.jgit.api.errors.DetachedHeadException;
- 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.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.Repository;
- import org.eclipse.jgit.lib.StoredConfig;
- import org.eclipse.jgit.lib.RefUpdate.Result;
-
- /**
- * 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;
-
- /**
- * @param repo
- */
- protected RenameBranchCommand(Repository repo) {
- super(repo);
- }
-
- /**
- * @throws RefNotFoundException
- * if the old branch can not be found (branch with provided old
- * name does not exist or old name resolves to a tag)
- * @throws InvalidRefNameException
- * if the provided new name is <code>null</code> or otherwise
- * invalid
- * @throws RefAlreadyExistsException
- * if a branch with the new name already exists
- * @throws DetachedHeadException
- * if rename is tried without specifying the old name and HEAD
- * is detached
- */
- public Ref call() throws RefNotFoundException, InvalidRefNameException,
- RefAlreadyExistsException, DetachedHeadException {
- checkCallable();
-
- if (newName == null)
- throw new InvalidRefNameException(MessageFormat.format(JGitText
- .get().branchNameInvalid, "<null>"));
-
- try {
- String fullOldName;
- String fullNewName;
- if (repo.getRef(newName) != null)
- throw new RefAlreadyExistsException(MessageFormat.format(
- JGitText.get().refAlreadExists, newName));
- if (oldName != null) {
- Ref ref = repo.getRef(oldName);
- if (ref == null)
- throw new RefNotFoundException(MessageFormat.format(
- JGitText.get().refNotResolved, oldName));
- if (ref.getName().startsWith(Constants.R_TAGS))
- throw new RefNotFoundException(MessageFormat.format(
- JGitText.get().renameBranchFailedBecauseTag,
- oldName));
- fullOldName = ref.getName();
- } else {
- fullOldName = repo.getFullBranch();
- if (ObjectId.isId(fullOldName))
- throw new DetachedHeadException();
- }
-
- if (fullOldName.startsWith(Constants.R_REMOTES))
- fullNewName = Constants.R_REMOTES + newName;
- else {
- fullNewName = Constants.R_HEADS + newName;
- }
-
- if (!Repository.isValidRefName(fullNewName))
- throw new InvalidRefNameException(MessageFormat.format(JGitText
- .get().branchNameInvalid, fullNewName));
-
- RefRename rename = repo.renameRef(fullOldName, fullNewName);
- Result renameResult = rename.rename();
-
- setCallable(false);
-
- boolean ok = Result.RENAMED == renameResult;
-
- if (ok) {
- if (fullNewName.startsWith(Constants.R_HEADS)) {
- // move the upstream configuration over to the new branch
- String shortOldName = fullOldName
- .substring(Constants.R_HEADS.length());
- final StoredConfig repoConfig = repo.getConfig();
- String oldRemote = repoConfig.getString(
- ConfigConstants.CONFIG_BRANCH_SECTION,
- shortOldName, ConfigConstants.CONFIG_KEY_REMOTE);
- if (oldRemote != null) {
- repoConfig.setString(
- ConfigConstants.CONFIG_BRANCH_SECTION, newName,
- ConfigConstants.CONFIG_KEY_REMOTE, oldRemote);
- }
- String oldMerge = repoConfig.getString(
- ConfigConstants.CONFIG_BRANCH_SECTION,
- shortOldName, ConfigConstants.CONFIG_KEY_MERGE);
- if (oldMerge != null) {
- repoConfig.setString(
- ConfigConstants.CONFIG_BRANCH_SECTION, newName,
- ConfigConstants.CONFIG_KEY_MERGE, oldMerge);
- }
- repoConfig
- .unsetSection(
- ConfigConstants.CONFIG_BRANCH_SECTION,
- shortOldName);
- repoConfig.save();
- }
-
- } else
- throw new JGitInternalException(MessageFormat.format(JGitText
- .get().renameBranchUnexpectedResult, renameResult
- .name()));
-
- Ref resultRef = repo.getRef(newName);
- if (resultRef == null)
- throw new JGitInternalException(
- JGitText.get().renameBranchFailedUnknownReason);
- return resultRef;
- } catch (IOException ioe) {
- throw new JGitInternalException(ioe.getMessage(), ioe);
- }
- }
-
- /**
- * @param newName
- * the new name
- * @return this instance
- */
- public RenameBranchCommand setNewName(String newName) {
- checkCallable();
- this.newName = newName;
- return this;
- }
-
- /**
- * @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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