/*
* Copyright (C) 2007-2008, Charles O'Farrell <charleso@charleso.org>
* 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.pgm;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.ListBranchCommand;
import org.eclipse.jgit.api.ListBranchCommand.ListMode;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefComparator;
import org.eclipse.jgit.lib.RefRename;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.RefUpdate.Result;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.pgm.internal.CLIText;
import org.eclipse.jgit.pgm.opt.CmdLineParser;
import org.eclipse.jgit.revwalk.RevWalk;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.ExampleMode;
import org.kohsuke.args4j.Option;
@Command(common = true, usage = "usage_listCreateOrDeleteBranches")
class Branch extends TextBuiltin {
@Option(name = "--remote", aliases = { "-r" }, usage = "usage_actOnRemoteTrackingBranches")
private boolean remote = false;
@Option(name = "--all", aliases = { "-a" }, usage = "usage_listBothRemoteTrackingAndLocalBranches")
private boolean all = false;
@Option(name = "--contains", metaVar = "metaVar_commitish", usage = "usage_printOnlyBranchesThatContainTheCommit")
private String containsCommitish;
@Option(name = "--delete", aliases = { "-d" }, usage = "usage_deleteFullyMergedBranch")
private boolean delete = false;
@Option(name = "--delete-force", aliases = { "-D" }, usage = "usage_deleteBranchEvenIfNotMerged")
private boolean deleteForce = false;
@Option(name = "--create-force", aliases = { "-f" }, usage = "usage_forceCreateBranchEvenExists")
private boolean createForce = false;
@Option(name = "-m", usage = "usage_moveRenameABranch")
private boolean rename = false;
@Option(name = "--verbose", aliases = { "-v" }, usage = "usage_beVerbose")
private boolean verbose = false;
@Argument
private List<String> branches = new ArrayList<String>();
private final Map<String, Ref> printRefs = new LinkedHashMap<String, Ref>();
/** Only set for verbose branch listing at-the-moment */
private RevWalk rw;
private int maxNameLength;
@Override
protected void run() throws Exception {
if (delete || deleteForce)
delete(deleteForce);
else {
if (branches.size() > 2)
throw die(CLIText.get().tooManyRefsGiven + new CmdLineParser(this).printExample(ExampleMode.ALL));
if (rename) {
String src, dst;
if (branches.size() == 1) {
final Ref head = db.getRef(Constants.HEAD);
if (head != null && head.isSymbolic())
src = head.getLeaf().getName();
else
throw die(CLIText.get().cannotRenameDetachedHEAD);
dst = branches.get(0);
} else {
src = branches.get(0);
final Ref old = db.getRef(src);
if (old == null)
throw die(MessageFormat.format(CLIText.get().doesNotExist, src));
if (!old.getName().startsWith(Constants.R_HEADS))
throw die(MessageFormat.format(CLIText.get().notABranch, src));
src = old.getName();
dst = branches.get(1);
}
if (!dst.startsWith(Constants.R_HEADS))
dst = Constants.R_HEADS + dst;
if (!Repository.isValidRefName(dst))
throw die(MessageFormat.format(CLIText.get().notAValidRefName, dst));
RefRename r = db.renameRef(src, dst);
if (r.rename() != Result.RENAMED)
throw die(MessageFormat.format(CLIText.get().cannotBeRenamed, src));
} else if (branches.size() > 0) {
String newHead = branches.get(0);
String startBranch;
if (branches.size() == 2)
startBranch = branches.get(1);
else
startBranch = Constants.HEAD;
Ref startRef = db.getRef(startBranch);
ObjectId startAt = db.resolve(startBranch + "^0"); //$NON-NLS-1$
if (startRef != null)
startBranch = startRef.getName();
else
startBranch = startAt.name();
startBranch = Repository.shortenRefName(startBranch);
String newRefName = newHead;
if (!newRefName.startsWith(Constants.R_HEADS))
newRefName = Constants.R_HEADS + newRefName;
if (!Repository.isValidRefName(newRefName))
throw die(MessageFormat.format(CLIText.get().notAValidRefName, newRefName));
if (!createForce && db.resolve(newRefName) != null)
throw die(MessageFormat.format(CLIText.get().branchAlreadyExists, newHead));
RefUpdate updateRef = db.updateRef(newRefName);
updateRef.setNewObjectId(startAt);
updateRef.setForceUpdate(createForce);
updateRef.setRefLogMessage(MessageFormat.format(CLIText.get().branchCreatedFrom, startBranch), false);
Result update = updateRef.update();
if (update == Result.REJECTED)
throw die(MessageFormat.format(CLIText.get().couldNotCreateBranch, newHead, update.toString()));
} else {
if (verbose)
rw = new RevWalk(db);
list();
}
}
}
private void list() throws Exception {
Ref head = db.getRef(Constants.HEAD);
// This can happen if HEAD is stillborn
if (head != null) {
String current = head.getLeaf().getName();
ListBranchCommand command = new Git(db).branchList();
if (all)
command.setListMode(ListMode.ALL);
else if (remote)
command.setListMode(ListMode.REMOTE);
if (containsCommitish != null)
command.setContains(containsCommitish);
List<Ref> refs = command.call();
for (Ref ref : refs) {
if (ref.getName().equals(Constants.HEAD))
addRef("(no branch)", head); //$NON-NLS-1$
}
addRefs(refs, Constants.R_HEADS);
addRefs(refs, Constants.R_REMOTES);
ObjectReader reader = db.newObjectReader();
try {
for (final Entry<String, Ref> e : printRefs.entrySet()) {
final Ref ref = e.getValue();
printHead(reader, e.getKey(),
current.equals(ref.getName()), ref);
}
} finally {
reader.release();
}
}
}
private void addRefs(final Collection<Ref> refs, final String prefix) {
for (final Ref ref : RefComparator.sort(refs)) {
final String name = ref.getName();
if (name.startsWith(prefix))
addRef(name.substring(name.indexOf('/', 5) + 1), ref);
}
}
private void addRef(final String name, final Ref ref) {
printRefs.put(name, ref);
maxNameLength = Math.max(maxNameLength, name.length());
}
private void printHead(final ObjectReader reader, final String ref,
final boolean isCurrent, final Ref refObj) throws Exception {
outw.print(isCurrent ? '*' : ' ');
outw.print(' ');
outw.print(ref);
if (verbose) {
final int spaces = maxNameLength - ref.length() + 1;
outw.format("%" + spaces + "s", ""); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
final ObjectId objectId = refObj.getObjectId();
outw.print(reader.abbreviate(objectId).name());
outw.print(' ');
outw.print(rw.parseCommit(objectId).getShortMessage());
}
outw.println();
}
private void delete(boolean force) throws IOException {
String current = db.getBranch();
ObjectId head = db.resolve(Constants.HEAD);
for (String branch : branches) {
if (current.equals(branch)) {
throw die(MessageFormat.format(CLIText.get().cannotDeleteTheBranchWhichYouAreCurrentlyOn, branch));
}
RefUpdate update = db.updateRef((remote ? Constants.R_REMOTES
: Constants.R_HEADS)
+ branch);
update.setNewObjectId(head);
update.setForceUpdate(force || remote);
Result result = update.delete();
if (result == Result.REJECTED) {
throw die(MessageFormat.format(CLIText.get().branchIsNotAnAncestorOfYourCurrentHEAD, branch));
} else if (result == Result.NEW)
throw die(MessageFormat.format(CLIText.get().branchNotFound, branch));
if (remote)
outw.println(MessageFormat.format(CLIText.get().deletedRemoteBranch, branch));
else if (verbose)
outw.println(MessageFormat.format(CLIText.get().deletedBranch, branch));
}
}
}