[pgm] Implement clone using CloneCommand
Change-Id: I56699b7bf9a71f673cb308d3015f51de5b06c1d9 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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/*
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* Copyright (C) 2014 Matthias Sohn <matthias.sohn@sap.com>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.pgm;
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import static org.junit.Assert.assertArrayEquals;
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import static org.junit.Assert.assertEquals;
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import java.io.File;
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import java.util.List;
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import org.eclipse.jgit.api.Git;
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import org.eclipse.jgit.junit.JGitTestUtil;
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import org.eclipse.jgit.junit.MockSystemReader;
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import org.eclipse.jgit.lib.CLIRepositoryTestCase;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.Ref;
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import org.eclipse.jgit.transport.URIish;
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import org.eclipse.jgit.util.SystemReader;
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import org.junit.Before;
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import org.junit.Test;
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public class CloneTest extends CLIRepositoryTestCase {
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private Git git;
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@Override
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@Before
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public void setUp() throws Exception {
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super.setUp();
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git = new Git(db);
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}
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@Test
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public void testClone() throws Exception {
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createInitialCommit();
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File gitDir = db.getDirectory();
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String sourceURI = gitDir.toURI().toString();
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File target = createTempDirectory("target");
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StringBuilder cmd = new StringBuilder("git clone ").append(sourceURI
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+ " " + target.getPath());
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String[] result = execute(cmd.toString());
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assertArrayEquals(new String[] {
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"Cloning into '" + target.getPath() + "'...",
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"", "" }, result);
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Git git2 = Git.open(target);
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List<Ref> branches = git2.branchList().call();
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assertEquals("expected 1 branch", 1, branches.size());
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}
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private void createInitialCommit() throws Exception {
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JGitTestUtil.writeTrashFile(db, "hello.txt", "world");
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git.add().addFilepattern("hello.txt").call();
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git.commit().setMessage("Initial commit").call();
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}
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@Test
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public void testCloneEmpty() throws Exception {
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File gitDir = db.getDirectory();
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String sourceURI = gitDir.toURI().toString();
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File target = createTempDirectory("target");
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StringBuilder cmd = new StringBuilder("git clone ").append(sourceURI
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+ " " + target.getPath());
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String[] result = execute(cmd.toString());
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assertArrayEquals(new String[] {
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"Cloning into '" + target.getPath() + "'...",
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"warning: You appear to have cloned an empty repository.", "",
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"" }, result);
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Git git2 = Git.open(target);
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List<Ref> branches = git2.branchList().call();
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assertEquals("expected 0 branch", 0, branches.size());
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}
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@Test
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public void testCloneIntoCurrentDir() throws Exception {
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createInitialCommit();
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File target = createTempDirectory("target");
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MockSystemReader sr = (MockSystemReader) SystemReader.getInstance();
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sr.setProperty(Constants.OS_USER_DIR, target.getAbsolutePath());
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File gitDir = db.getDirectory();
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String sourceURI = gitDir.toURI().toString();
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String name = new URIish(sourceURI).getHumanishName();
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StringBuilder cmd = new StringBuilder("git clone ").append(sourceURI);
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String[] result = execute(cmd.toString());
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assertArrayEquals(new String[] {
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"Cloning into '" + new File(target, name).getName() + "'...",
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"", "" }, result);
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Git git2 = Git.open(new File(target, name));
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List<Ref> branches = git2.branchList().call();
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assertEquals("expected 1 branch", 1, branches.size());
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}
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}
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@ -43,6 +43,8 @@ changesNotStagedForCommit=Changes not staged for commit:
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changesToBeCommitted=Changes to be committed:
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checkoutConflict=error: Your local changes to the following files would be overwritten by checkout:
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checkoutConflictPathLine=\t{0}
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clonedEmptyRepository=warning: You appear to have cloned an empty repository.
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cloningInto=Cloning into ''{0}''...
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commitLabel=commit
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configFileNotFound=configuration file {0} not found
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conflictingUsageOf_git_dir_andArguments=conflicting usage of --git-dir and arguments
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@ -44,30 +44,15 @@
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package org.eclipse.jgit.pgm;
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import java.io.File;
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import java.io.IOException;
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import java.net.URISyntaxException;
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import java.text.MessageFormat;
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import org.eclipse.jgit.dircache.DirCache;
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import org.eclipse.jgit.dircache.DirCacheCheckout;
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import org.eclipse.jgit.errors.IncorrectObjectTypeException;
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import org.eclipse.jgit.errors.MissingObjectException;
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import org.eclipse.jgit.api.CloneCommand;
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import org.eclipse.jgit.api.Git;
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import org.eclipse.jgit.api.errors.InvalidRemoteException;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.Ref;
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import org.eclipse.jgit.lib.RefUpdate;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.lib.StoredConfig;
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import org.eclipse.jgit.lib.TextProgressMonitor;
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import org.eclipse.jgit.pgm.internal.CLIText;
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import org.eclipse.jgit.revwalk.RevCommit;
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import org.eclipse.jgit.revwalk.RevWalk;
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import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
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import org.eclipse.jgit.transport.FetchResult;
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import org.eclipse.jgit.transport.RefSpec;
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import org.eclipse.jgit.transport.RemoteConfig;
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import org.eclipse.jgit.transport.TagOpt;
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import org.eclipse.jgit.transport.Transport;
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import org.eclipse.jgit.transport.URIish;
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import org.eclipse.jgit.util.SystemReader;
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import org.kohsuke.args4j.Argument;
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import org.kohsuke.args4j.Option;
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@ -88,8 +73,6 @@ class Clone extends AbstractFetchCommand {
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@Argument(index = 1, metaVar = "metaVar_directory")
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private String localName;
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private Repository dst;
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@Override
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protected final boolean requiresRepository() {
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return false;
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@ -101,116 +84,42 @@ protected void run() throws Exception {
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throw die(CLIText.get().conflictingUsageOf_git_dir_andArguments);
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final URIish uri = new URIish(sourceUri);
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File localNameF;
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if (localName == null) {
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try {
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localName = uri.getHumanishName();
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localNameF = new File(SystemReader.getInstance().getProperty(
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Constants.OS_USER_DIR), localName);
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} catch (IllegalArgumentException e) {
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throw die(MessageFormat.format(CLIText.get().cannotGuessLocalNameFrom, sourceUri));
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throw die(MessageFormat.format(
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CLIText.get().cannotGuessLocalNameFrom, sourceUri));
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}
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} else
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localNameF = new File(localName);
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if (branch == null)
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branch = Constants.HEAD;
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CloneCommand command = Git.cloneRepository();
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command.setURI(sourceUri).setRemote(remoteName)
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.setNoCheckout(noCheckout).setBranch(branch);
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command.setGitDir(gitdir == null ? null : new File(gitdir));
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command.setDirectory(localNameF);
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outw.println(MessageFormat.format(CLIText.get().cloningInto, localName));
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try {
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db = command.call().getRepository();
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if (db.resolve(Constants.HEAD) == null)
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outw.println(CLIText.get().clonedEmptyRepository);
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} catch (InvalidRemoteException e) {
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throw die(MessageFormat.format(CLIText.get().doesNotExist,
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sourceUri));
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} finally {
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if (db != null)
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db.close();
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}
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if (gitdir == null)
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gitdir = new File(localName, Constants.DOT_GIT).getAbsolutePath();
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dst = new FileRepositoryBuilder().setGitDir(new File(gitdir)).build();
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dst.create();
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final StoredConfig dstcfg = dst.getConfig();
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dstcfg.setBoolean("core", null, "bare", false); //$NON-NLS-1$ //$NON-NLS-2$
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dstcfg.save();
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db = dst;
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outw.print(MessageFormat.format(
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CLIText.get().initializedEmptyGitRepositoryIn, gitdir));
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outw.println();
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outw.flush();
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saveRemote(uri);
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final FetchResult r = runFetch();
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if (!noCheckout) {
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final Ref checkoutRef;
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if (branch == null)
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checkoutRef = guessHEAD(r);
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else {
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checkoutRef = r.getAdvertisedRef(Constants.R_HEADS + branch);
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if (checkoutRef == null)
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throw die(MessageFormat.format(
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CLIText.get().noSuchRemoteRef, branch));
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}
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doCheckout(checkoutRef);
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}
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}
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private void saveRemote(final URIish uri) throws URISyntaxException,
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IOException {
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final StoredConfig dstcfg = dst.getConfig();
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final RemoteConfig rc = new RemoteConfig(dstcfg, remoteName);
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rc.addURI(uri);
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rc.addFetchRefSpec(new RefSpec().setForceUpdate(true)
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.setSourceDestination(Constants.R_HEADS + "*", //$NON-NLS-1$
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Constants.R_REMOTES + remoteName + "/*")); //$NON-NLS-1$
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rc.update(dstcfg);
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dstcfg.save();
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}
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private FetchResult runFetch() throws URISyntaxException, IOException {
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final Transport tn = Transport.open(db, remoteName);
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final FetchResult r;
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try {
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tn.setTagOpt(TagOpt.FETCH_TAGS);
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r = tn.fetch(new TextProgressMonitor(), null);
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} finally {
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tn.close();
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}
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showFetchResult(r);
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return r;
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}
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private static Ref guessHEAD(final FetchResult result) {
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final Ref idHEAD = result.getAdvertisedRef(Constants.HEAD);
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Ref head = null;
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for (final Ref r : result.getAdvertisedRefs()) {
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final String n = r.getName();
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if (!n.startsWith(Constants.R_HEADS))
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continue;
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if (idHEAD == null || head != null)
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continue;
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if (r.getObjectId().equals(idHEAD.getObjectId()))
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head = r;
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}
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if (idHEAD != null && head == null)
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head = idHEAD;
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return head;
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}
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private void doCheckout(final Ref branch) throws IOException {
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if (branch == null)
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throw die(CLIText.get().cannotChekoutNoHeadsAdvertisedByRemote);
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if (!Constants.HEAD.equals(branch.getName())) {
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RefUpdate u = db.updateRef(Constants.HEAD);
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u.disableRefLog();
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u.link(branch.getName());
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}
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final RevCommit commit = parseCommit(branch);
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final RefUpdate u = db.updateRef(Constants.HEAD);
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u.setNewObjectId(commit);
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u.forceUpdate();
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DirCache dc = db.lockDirCache();
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DirCacheCheckout co = new DirCacheCheckout(db, dc, commit.getTree());
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co.checkout();
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}
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private RevCommit parseCommit(final Ref branch)
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throws MissingObjectException, IncorrectObjectTypeException,
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IOException {
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final RevWalk rw = new RevWalk(db);
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final RevCommit commit;
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try {
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commit = rw.parseCommit(branch.getObjectId());
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} finally {
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rw.release();
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}
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return commit;
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}
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}
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@ -109,6 +109,8 @@ public static String formatLine(String line) {
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/***/ public String changesToBeCommitted;
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/***/ public String checkoutConflict;
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/***/ public String checkoutConflictPathLine;
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/***/ public String clonedEmptyRepository;
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/***/ public String cloningInto;
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/***/ public String commitLabel;
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/***/ public String conflictingUsageOf_git_dir_andArguments;
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/***/ public String couldNotCreateBranch;
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