| /* |
| * Copyright (C) 2008-2010, Google 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 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.File; |
| import java.io.IOException; |
| import java.net.URISyntaxException; |
| import java.text.MessageFormat; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.jgit.errors.IncorrectObjectTypeException; |
| import org.eclipse.jgit.errors.MissingObjectException; |
| import org.eclipse.jgit.errors.NotSupportedException; |
| import org.eclipse.jgit.errors.TransportException; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.GitIndex; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.lib.RefComparator; |
| import org.eclipse.jgit.lib.RefUpdate; |
| import org.eclipse.jgit.lib.TextProgressMonitor; |
| import org.eclipse.jgit.lib.Tree; |
| import org.eclipse.jgit.lib.WorkDirCheckout; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.eclipse.jgit.revwalk.RevWalk; |
| import org.eclipse.jgit.storage.file.FileRepository; |
| import org.eclipse.jgit.transport.FetchResult; |
| import org.eclipse.jgit.transport.RefSpec; |
| import org.eclipse.jgit.transport.RemoteConfig; |
| import org.eclipse.jgit.transport.Transport; |
| import org.eclipse.jgit.transport.URIish; |
| import org.kohsuke.args4j.Argument; |
| import org.kohsuke.args4j.Option; |
| |
| @Command(common = true, usage = "usage_cloneRepositoryIntoNewDir") |
| class Clone extends AbstractFetchCommand { |
| @Option(name = "--origin", aliases = { "-o" }, metaVar = "metaVar_remoteName", usage = "usage_useNameInsteadOfOriginToTrackUpstream") |
| private String remoteName = Constants.DEFAULT_REMOTE_NAME; |
| |
| @Argument(index = 0, required = true, metaVar = "metaVar_uriish") |
| private String sourceUri; |
| |
| @Argument(index = 1, metaVar = "metaVar_directory") |
| private String localName; |
| |
| private FileRepository dst; |
| |
| @Override |
| protected final boolean requiresRepository() { |
| return false; |
| } |
| |
| @Override |
| protected void run() throws Exception { |
| if (localName != null && gitdir != null) |
| throw die(CLIText.get().conflictingUsageOf_git_dir_andArguments); |
| |
| final URIish uri = new URIish(sourceUri); |
| if (localName == null) { |
| try { |
| localName = uri.getHumanishName(); |
| } catch (IllegalArgumentException e) { |
| throw die(MessageFormat.format(CLIText.get().cannotGuessLocalNameFrom, sourceUri)); |
| } |
| } |
| if (gitdir == null) |
| gitdir = new File(localName, Constants.DOT_GIT); |
| |
| dst = new FileRepository(gitdir); |
| dst.create(); |
| dst.getConfig().setBoolean("core", null, "bare", false); |
| dst.getConfig().save(); |
| db = dst; |
| |
| out.print(MessageFormat.format( |
| CLIText.get().initializedEmptyGitRepositoryIn, gitdir |
| .getAbsolutePath())); |
| out.println(); |
| out.flush(); |
| |
| saveRemote(uri); |
| final FetchResult r = runFetch(); |
| final Ref branch = guessHEAD(r); |
| doCheckout(branch); |
| } |
| |
| private void saveRemote(final URIish uri) throws URISyntaxException, |
| IOException { |
| final RemoteConfig rc = new RemoteConfig(dst.getConfig(), remoteName); |
| rc.addURI(uri); |
| rc.addFetchRefSpec(new RefSpec().setForceUpdate(true) |
| .setSourceDestination(Constants.R_HEADS + "*", |
| Constants.R_REMOTES + remoteName + "/*")); |
| rc.update(dst.getConfig()); |
| dst.getConfig().save(); |
| } |
| |
| private FetchResult runFetch() throws NotSupportedException, |
| URISyntaxException, TransportException { |
| final Transport tn = Transport.open(db, remoteName); |
| final FetchResult r; |
| try { |
| r = tn.fetch(new TextProgressMonitor(), null); |
| } finally { |
| tn.close(); |
| } |
| showFetchResult(tn, r); |
| return r; |
| } |
| |
| private Ref guessHEAD(final FetchResult result) { |
| final Ref idHEAD = result.getAdvertisedRef(Constants.HEAD); |
| final List<Ref> availableRefs = new ArrayList<Ref>(); |
| Ref head = null; |
| for (final Ref r : result.getAdvertisedRefs()) { |
| final String n = r.getName(); |
| if (!n.startsWith(Constants.R_HEADS)) |
| continue; |
| availableRefs.add(r); |
| if (idHEAD == null || head != null) |
| continue; |
| if (r.getObjectId().equals(idHEAD.getObjectId())) |
| head = r; |
| } |
| Collections.sort(availableRefs, RefComparator.INSTANCE); |
| if (idHEAD != null && head == null) |
| head = idHEAD; |
| return head; |
| } |
| |
| private void doCheckout(final Ref branch) throws IOException { |
| if (branch == null) |
| throw die(CLIText.get().cannotChekoutNoHeadsAdvertisedByRemote); |
| if (!Constants.HEAD.equals(branch.getName())) { |
| RefUpdate u = db.updateRef(Constants.HEAD); |
| u.disableRefLog(); |
| u.link(branch.getName()); |
| } |
| |
| final RevCommit commit = parseCommit(branch); |
| final RefUpdate u = db.updateRef(Constants.HEAD); |
| u.setNewObjectId(commit); |
| u.forceUpdate(); |
| |
| final GitIndex index = new GitIndex(db); |
| final Tree tree = db.mapTree(commit.getTree()); |
| final WorkDirCheckout co; |
| |
| co = new WorkDirCheckout(db, db.getWorkTree(), index, tree); |
| co.checkout(); |
| index.write(); |
| } |
| |
| private RevCommit parseCommit(final Ref branch) |
| throws MissingObjectException, IncorrectObjectTypeException, |
| IOException { |
| final RevWalk rw = new RevWalk(db); |
| final RevCommit commit; |
| try { |
| commit = rw.parseCommit(branch.getObjectId()); |
| } finally { |
| rw.release(); |
| } |
| return commit; |
| } |
| } |