123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209 |
- /*
- * 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 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.lib.Constants;
- import org.eclipse.jgit.lib.Ref;
- import org.eclipse.jgit.lib.RefUpdate;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.lib.StoredConfig;
- import org.eclipse.jgit.lib.TextProgressMonitor;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.eclipse.jgit.revwalk.RevWalk;
- import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
- 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.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;
-
- @Option(name = "--branch", aliases = { "-b" }, metaVar = "metaVar_branchName", usage = "usage_checkoutBranchAfterClone")
- private String branch;
-
- @Argument(index = 0, required = true, metaVar = "metaVar_uriish")
- private String sourceUri;
-
- @Argument(index = 1, metaVar = "metaVar_directory")
- private String localName;
-
- private Repository 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).getAbsolutePath();
-
- dst = new FileRepositoryBuilder().setGitDir(new File(gitdir)).build();
- dst.create();
- final StoredConfig dstcfg = dst.getConfig();
- dstcfg.setBoolean("core", null, "bare", false); //$NON-NLS-1$ //$NON-NLS-2$
- dstcfg.save();
- db = dst;
-
- outw.print(MessageFormat.format(
- CLIText.get().initializedEmptyGitRepositoryIn, gitdir));
- outw.println();
- outw.flush();
-
- saveRemote(uri);
- final FetchResult r = runFetch();
- final Ref checkoutRef;
- if (branch == null)
- checkoutRef = guessHEAD(r);
- else {
- checkoutRef = r.getAdvertisedRef(Constants.R_HEADS + branch);
- if (checkoutRef == null)
- throw die(MessageFormat.format(CLIText.get().noSuchRemoteRef,
- branch));
- }
- doCheckout(checkoutRef);
- }
-
- private void saveRemote(final URIish uri) throws URISyntaxException,
- IOException {
- final StoredConfig dstcfg = dst.getConfig();
- final RemoteConfig rc = new RemoteConfig(dstcfg, remoteName);
- rc.addURI(uri);
- rc.addFetchRefSpec(new RefSpec().setForceUpdate(true)
- .setSourceDestination(Constants.R_HEADS + "*", //$NON-NLS-1$
- Constants.R_REMOTES + remoteName + "/*")); //$NON-NLS-1$
- rc.update(dstcfg);
- dstcfg.save();
- }
-
- private FetchResult runFetch() throws URISyntaxException, IOException {
- final Transport tn = Transport.open(db, remoteName);
- final FetchResult r;
- try {
- tn.setTagOpt(TagOpt.FETCH_TAGS);
- r = tn.fetch(new TextProgressMonitor(), null);
- } finally {
- tn.close();
- }
- showFetchResult(r);
- return r;
- }
-
- private static Ref guessHEAD(final FetchResult result) {
- final Ref idHEAD = result.getAdvertisedRef(Constants.HEAD);
- Ref head = null;
- for (final Ref r : result.getAdvertisedRefs()) {
- final String n = r.getName();
- if (!n.startsWith(Constants.R_HEADS))
- continue;
- if (idHEAD == null || head != null)
- continue;
- if (r.getObjectId().equals(idHEAD.getObjectId()))
- head = r;
- }
- 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();
-
- DirCache dc = db.lockDirCache();
- DirCacheCheckout co = new DirCacheCheckout(db, dc, commit.getTree());
- co.checkout();
- }
-
- 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;
- }
- }
|