org.eclipse.jgit.test/tst/org/eclipse/jgit/api/PushCommandTest.java - sop/jgit - Git at Google

 /*
  * Copyright (C) 2010, 2014 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 static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;

 import java.io.File;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.Properties;

 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.api.errors.JGitInternalException;
 import org.eclipse.jgit.api.errors.TransportException;
 import org.eclipse.jgit.errors.MissingObjectException;
 import org.eclipse.jgit.hooks.PrePushHook;
 import org.eclipse.jgit.junit.JGitTestUtil;
 import org.eclipse.jgit.junit.RepositoryTestCase;
 import org.eclipse.jgit.lib.ObjectId;
 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.revwalk.RevCommit;
 import org.eclipse.jgit.transport.PushResult;
 import org.eclipse.jgit.transport.RefLeaseSpec;
 import org.eclipse.jgit.transport.RefSpec;
 import org.eclipse.jgit.transport.RemoteConfig;
 import org.eclipse.jgit.transport.RemoteRefUpdate;
 import org.eclipse.jgit.transport.TrackingRefUpdate;
 import org.eclipse.jgit.transport.URIish;
 import org.eclipse.jgit.util.FS;
 import org.junit.Test;

 public class PushCommandTest extends RepositoryTestCase {

 	@Test
 	public void testPush() throws JGitInternalException, IOException,
 			GitAPIException, URISyntaxException {

 		// create other repository
 		Repository db2 = createWorkRepository();
 		final StoredConfig config2 = db2.getConfig();

 		// this tests that this config can be parsed properly
 		config2.setString("fsck", "", "missingEmail", "ignore");
 		config2.save();

 		// setup the first repository
 		final StoredConfig config = db.getConfig();
 		RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 		URIish uri = new URIish(db2.getDirectory().toURI().toURL());
 		remoteConfig.addURI(uri);
 		remoteConfig.update(config);
 		config.save();

 		try (Git git1 = new Git(db)) {
 			// create some refs via commits and tag
 			RevCommit commit = git1.commit().setMessage("initial commit").call();
 			Ref tagRef = git1.tag().setName("tag").call();

 			try {
 				db2.resolve(commit.getId().getName() + "^{commit}");
 				fail("id shouldn't exist yet");
 			} catch (MissingObjectException e) {
 				// we should get here
 			}

 			RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
 			git1.push().setRemote("test").setRefSpecs(spec)
 					.call();

 			assertEquals(commit.getId(),
 					db2.resolve(commit.getId().getName() + "^{commit}"));
 			assertEquals(tagRef.getObjectId(),
 					db2.resolve(tagRef.getObjectId().getName()));
 		}
 	}

 	@Test
 	public void testPrePushHook() throws JGitInternalException, IOException,
 			GitAPIException, URISyntaxException {

 		// create other repository
 		Repository db2 = createWorkRepository();

 		// setup the first repository
 		final StoredConfig config = db.getConfig();
 		RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 		URIish uri = new URIish(db2.getDirectory().toURI().toURL());
 		remoteConfig.addURI(uri);
 		remoteConfig.update(config);
 		config.save();

 		File hookOutput = new File(getTemporaryDirectory(), "hookOutput");
 		writeHookFile(PrePushHook.NAME, "#!/bin/sh\necho 1:$1, 2:$2, 3:$3 >\""
 				+ hookOutput.toPath() + "\"\ncat - >>\"" + hookOutput.toPath()
 				+ "\"\nexit 0");

 		try (Git git1 = new Git(db)) {
 			// create some refs via commits and tag
 			RevCommit commit = git1.commit().setMessage("initial commit").call();

 			RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
 			git1.push().setRemote("test").setRefSpecs(spec).call();
 			assertEquals("1:test, 2:" + uri + ", 3:\n" + "refs/heads/master "
 					+ commit.getName() + " refs/heads/x "
 					+ ObjectId.zeroId().name(), read(hookOutput));
 		}
 	}

 	private File writeHookFile(final String name, final String data)
 			throws IOException {
 		File path = new File(db.getWorkTree() + "/.git/hooks/", name);
 		JGitTestUtil.write(path, data);
 		FS.DETECTED.setExecute(path, true);
 		return path;
 	}


 	@Test
 	public void testTrackingUpdate() throws Exception {
 		Repository db2 = createBareRepository();

 		String remote = "origin";
 		String branch = "refs/heads/master";
 		String trackingBranch = "refs/remotes/" + remote + "/master";

 		try (Git git = new Git(db)) {
 			RevCommit commit1 = git.commit().setMessage("Initial commit")
 					.call();

 			RefUpdate branchRefUpdate = db.updateRef(branch);
 			branchRefUpdate.setNewObjectId(commit1.getId());
 			branchRefUpdate.update();

 			RefUpdate trackingBranchRefUpdate = db.updateRef(trackingBranch);
 			trackingBranchRefUpdate.setNewObjectId(commit1.getId());
 			trackingBranchRefUpdate.update();

 			final StoredConfig config = db.getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, remote);
 			URIish uri = new URIish(db2.getDirectory().toURI().toURL());
 			remoteConfig.addURI(uri);
 			remoteConfig.addFetchRefSpec(new RefSpec("+refs/heads/*:refs/remotes/"
 					+ remote + "/*"));
 			remoteConfig.update(config);
 			config.save();


 			RevCommit commit2 = git.commit().setMessage("Commit to push").call();

 			RefSpec spec = new RefSpec(branch + ":" + branch);
 			Iterable<PushResult> resultIterable = git.push().setRemote(remote)
 					.setRefSpecs(spec).call();

 			PushResult result = resultIterable.iterator().next();
 			TrackingRefUpdate trackingRefUpdate = result
 					.getTrackingRefUpdate(trackingBranch);

 			assertNotNull(trackingRefUpdate);
 			assertEquals(trackingBranch, trackingRefUpdate.getLocalName());
 			assertEquals(branch, trackingRefUpdate.getRemoteName());
 			assertEquals(commit2.getId(), trackingRefUpdate.getNewObjectId());
 			assertEquals(commit2.getId(), db.resolve(trackingBranch));
 			assertEquals(commit2.getId(), db2.resolve(branch));
 		}
 	}

 	/**
 	 * Check that pushes over file protocol lead to appropriate ref-updates.
 	 *
 	 * @throws Exception
 	 */
 	@Test
 	public void testPushRefUpdate() throws Exception {
 		try (Git git = new Git(db);
 				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
 					.toURL());
 			remoteConfig.addURI(uri);
 			remoteConfig.addPushRefSpec(new RefSpec("+refs/heads/*:refs/heads/*"));
 			remoteConfig.update(config);
 			config.save();

 			writeTrashFile("f", "content of f");
 			git.add().addFilepattern("f").call();
 			RevCommit commit = git.commit().setMessage("adding f").call();

 			assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
 			git.push().setRemote("test").call();
 			assertEquals(commit.getId(),
 					git2.getRepository().resolve("refs/heads/master"));

 			git.branchCreate().setName("refs/heads/test").call();
 			git.checkout().setName("refs/heads/test").call();

 			for (int i = 0; i < 6; i++) {
 				writeTrashFile("f" + i, "content of f" + i);
 				git.add().addFilepattern("f" + i).call();
 				commit = git.commit().setMessage("adding f" + i).call();
 				git.push().setRemote("test").call();
 				git2.getRepository().getAllRefs();
 				assertEquals("failed to update on attempt " + i, commit.getId(),
 						git2.getRepository().resolve("refs/heads/test"));
 			}
 		}
 	}

 	/**
 	 * Check that the push refspec is read from config.
 	 *
 	 * @throws Exception
 	 */
 	@Test
 	public void testPushWithRefSpecFromConfig() throws Exception {
 		try (Git git = new Git(db);
 				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
 					.toURL());
 			remoteConfig.addURI(uri);
 			remoteConfig.addPushRefSpec(new RefSpec("HEAD:refs/heads/newbranch"));
 			remoteConfig.update(config);
 			config.save();

 			writeTrashFile("f", "content of f");
 			git.add().addFilepattern("f").call();
 			RevCommit commit = git.commit().setMessage("adding f").call();

 			assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
 			git.push().setRemote("test").call();
 			assertEquals(commit.getId(),
 					git2.getRepository().resolve("refs/heads/newbranch"));
 		}
 	}

 	/**
 	 * Check that only HEAD is pushed if no refspec is given.
 	 *
 	 * @throws Exception
 	 */
 	@Test
 	public void testPushWithoutPushRefSpec() throws Exception {
 		try (Git git = new Git(db);
 				Git git2 = new Git(createBareRepository())) {
 			final StoredConfig config = git.getRepository().getConfig();
 			RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 			URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
 					.toURL());
 			remoteConfig.addURI(uri);
 			remoteConfig.addFetchRefSpec(new RefSpec(
 					"+refs/heads/*:refs/remotes/origin/*"));
 			remoteConfig.update(config);
 			config.save();

 			writeTrashFile("f", "content of f");
 			git.add().addFilepattern("f").call();
 			RevCommit commit = git.commit().setMessage("adding f").call();

 			git.checkout().setName("not-pushed").setCreateBranch(true).call();
 			git.checkout().setName("branchtopush").setCreateBranch(true).call();

 			assertEquals(null,
 					git2.getRepository().resolve("refs/heads/branchtopush"));
 			assertEquals(null, git2.getRepository()
 					.resolve("refs/heads/not-pushed"));
 			assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
 			git.push().setRemote("test").call();
 			assertEquals(commit.getId(),
 					git2.getRepository().resolve("refs/heads/branchtopush"));
 			assertEquals(null, git2.getRepository()
 					.resolve("refs/heads/not-pushed"));
 			assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
 		}
 	}

 	/**
 	 * Check that missing refs don't cause errors during push
 	 *
 	 * @throws Exception
 	 */
 	@Test
 	public void testPushAfterGC() throws Exception {
 		// create other repository
 		Repository db2 = createWorkRepository();

 		// setup the first repository
 		final StoredConfig config = db.getConfig();
 		RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 		URIish uri = new URIish(db2.getDirectory().toURI().toURL());
 		remoteConfig.addURI(uri);
 		remoteConfig.update(config);
 		config.save();

 		try (Git git1 = new Git(db);
 				Git git2 = new Git(db2)) {
 			// push master (with a new commit) to the remote
 			git1.commit().setMessage("initial commit").call();

 			RefSpec spec = new RefSpec("refs/heads/*:refs/heads/*");
 			git1.push().setRemote("test").setRefSpecs(spec).call();

 			// create an unrelated ref and a commit on our remote
 			git2.branchCreate().setName("refs/heads/other").call();
 			git2.checkout().setName("refs/heads/other").call();

 			writeTrashFile("a", "content of a");
 			git2.add().addFilepattern("a").call();
 			RevCommit commit2 = git2.commit().setMessage("adding a").call();

 			// run a gc to ensure we have a bitmap index
 			Properties res = git1.gc().setExpire(null).call();
 			assertEquals(7, res.size());

 			// create another commit so we have something else to push
 			writeTrashFile("b", "content of b");
 			git1.add().addFilepattern("b").call();
 			RevCommit commit3 = git1.commit().setMessage("adding b").call();

 			try {
 				// Re-run the push.  Failure may happen here.
 				git1.push().setRemote("test").setRefSpecs(spec).call();
 			} catch (TransportException e) {
 				assertTrue("should be caused by a MissingObjectException", e
 						.getCause().getCause() instanceof MissingObjectException);
 				fail("caught MissingObjectException for a change we don't have");
 			}

 			// Remote will have both a and b.  Master will have only b
 			try {
 				db.resolve(commit2.getId().getName() + "^{commit}");
 				fail("id shouldn't exist locally");
 			} catch (MissingObjectException e) {
 				// we should get here
 			}
 			assertEquals(commit2.getId(),
 					db2.resolve(commit2.getId().getName() + "^{commit}"));
 			assertEquals(commit3.getId(),
 					db2.resolve(commit3.getId().getName() + "^{commit}"));
 		}
 	}

 	@Test
 	public void testPushWithLease() throws JGitInternalException, IOException,
 			GitAPIException, URISyntaxException {

 		// create other repository
 		Repository db2 = createWorkRepository();

 		// setup the first repository
 		final StoredConfig config = db.getConfig();
 		RemoteConfig remoteConfig = new RemoteConfig(config, "test");
 		URIish uri = new URIish(db2.getDirectory().toURI().toURL());
 		remoteConfig.addURI(uri);
 		remoteConfig.update(config);
 		config.save();

 		try (Git git1 = new Git(db)) {
 			// create one commit and push it
 			RevCommit commit = git1.commit().setMessage("initial commit").call();
 			git1.branchCreate().setName("initial").call();

 			RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
 			git1.push().setRemote("test").setRefSpecs(spec)
 					.call();

 			assertEquals(commit.getId(),
 					db2.resolve(commit.getId().getName() + "^{commit}"));
 			//now try to force-push a new commit, with a good lease

 			git1.commit().setMessage("second commit").call();
 			Iterable<PushResult> results =
 					git1.push().setRemote("test").setRefSpecs(spec)
 							.setRefLeaseSpecs(new RefLeaseSpec("refs/heads/x", "initial"))
 							.call();
 			for (PushResult result : results) {
 				RemoteRefUpdate update = result.getRemoteUpdate("refs/heads/x");
 				assertEquals(update.getStatus(), RemoteRefUpdate.Status.OK);
 			}

 			git1.commit().setMessage("third commit").call();
 			//now try to force-push a new commit, with a bad lease

 			results =
 					git1.push().setRemote("test").setRefSpecs(spec)
 							.setRefLeaseSpecs(new RefLeaseSpec("refs/heads/x", "initial"))
 							.call();
 			for (PushResult result : results) {
 				RemoteRefUpdate update = result.getRemoteUpdate("refs/heads/x");
 				assertEquals(update.getStatus(), RemoteRefUpdate.Status.REJECTED_REMOTE_CHANGED);
 			}
 		}
 	}
 }
	/*
	* Copyright (C) 2010, 2014 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 static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertNotNull;
	import static org.junit.Assert.assertTrue;
	import static org.junit.Assert.fail;

	import java.io.File;
	import java.io.IOException;
	import java.net.URISyntaxException;
	import java.util.Properties;

	import org.eclipse.jgit.api.errors.GitAPIException;
	import org.eclipse.jgit.api.errors.JGitInternalException;
	import org.eclipse.jgit.api.errors.TransportException;
	import org.eclipse.jgit.errors.MissingObjectException;
	import org.eclipse.jgit.hooks.PrePushHook;
	import org.eclipse.jgit.junit.JGitTestUtil;
	import org.eclipse.jgit.junit.RepositoryTestCase;
	import org.eclipse.jgit.lib.ObjectId;
	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.revwalk.RevCommit;
	import org.eclipse.jgit.transport.PushResult;
	import org.eclipse.jgit.transport.RefLeaseSpec;
	import org.eclipse.jgit.transport.RefSpec;
	import org.eclipse.jgit.transport.RemoteConfig;
	import org.eclipse.jgit.transport.RemoteRefUpdate;
	import org.eclipse.jgit.transport.TrackingRefUpdate;
	import org.eclipse.jgit.transport.URIish;
	import org.eclipse.jgit.util.FS;
	import org.junit.Test;

	public class PushCommandTest extends RepositoryTestCase {

	@Test
	public void testPush() throws JGitInternalException, IOException,
	GitAPIException, URISyntaxException {

	// create other repository
	Repository db2 = createWorkRepository();
	final StoredConfig config2 = db2.getConfig();

	// this tests that this config can be parsed properly
	config2.setString("fsck", "", "missingEmail", "ignore");
	config2.save();

	// setup the first repository
	final StoredConfig config = db.getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(db2.getDirectory().toURI().toURL());
	remoteConfig.addURI(uri);
	remoteConfig.update(config);
	config.save();

	try (Git git1 = new Git(db)) {
	// create some refs via commits and tag
	RevCommit commit = git1.commit().setMessage("initial commit").call();
	Ref tagRef = git1.tag().setName("tag").call();

	try {
	db2.resolve(commit.getId().getName() + "^{commit}");
	fail("id shouldn't exist yet");
	} catch (MissingObjectException e) {
	// we should get here
	}

	RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
	git1.push().setRemote("test").setRefSpecs(spec)
	.call();

	assertEquals(commit.getId(),
	db2.resolve(commit.getId().getName() + "^{commit}"));
	assertEquals(tagRef.getObjectId(),
	db2.resolve(tagRef.getObjectId().getName()));
	}
	}

	@Test
	public void testPrePushHook() throws JGitInternalException, IOException,
	GitAPIException, URISyntaxException {

	// create other repository
	Repository db2 = createWorkRepository();

	// setup the first repository
	final StoredConfig config = db.getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(db2.getDirectory().toURI().toURL());
	remoteConfig.addURI(uri);
	remoteConfig.update(config);
	config.save();

	File hookOutput = new File(getTemporaryDirectory(), "hookOutput");
	writeHookFile(PrePushHook.NAME, "#!/bin/sh\necho 1:$1, 2:$2, 3:$3 >\""
	+ hookOutput.toPath() + "\"\ncat - >>\"" + hookOutput.toPath()
	+ "\"\nexit 0");

	try (Git git1 = new Git(db)) {
	// create some refs via commits and tag
	RevCommit commit = git1.commit().setMessage("initial commit").call();

	RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
	git1.push().setRemote("test").setRefSpecs(spec).call();
	assertEquals("1:test, 2:" + uri + ", 3:\n" + "refs/heads/master "
	+ commit.getName() + " refs/heads/x "
	+ ObjectId.zeroId().name(), read(hookOutput));
	}
	}

	private File writeHookFile(final String name, final String data)
	throws IOException {
	File path = new File(db.getWorkTree() + "/.git/hooks/", name);
	JGitTestUtil.write(path, data);
	FS.DETECTED.setExecute(path, true);
	return path;
	}


	@Test
	public void testTrackingUpdate() throws Exception {
	Repository db2 = createBareRepository();

	String remote = "origin";
	String branch = "refs/heads/master";
	String trackingBranch = "refs/remotes/" + remote + "/master";

	try (Git git = new Git(db)) {
	RevCommit commit1 = git.commit().setMessage("Initial commit")
	.call();

	RefUpdate branchRefUpdate = db.updateRef(branch);
	branchRefUpdate.setNewObjectId(commit1.getId());
	branchRefUpdate.update();

	RefUpdate trackingBranchRefUpdate = db.updateRef(trackingBranch);
	trackingBranchRefUpdate.setNewObjectId(commit1.getId());
	trackingBranchRefUpdate.update();

	final StoredConfig config = db.getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, remote);
	URIish uri = new URIish(db2.getDirectory().toURI().toURL());
	remoteConfig.addURI(uri);
	remoteConfig.addFetchRefSpec(new RefSpec("+refs/heads/*:refs/remotes/"
	+ remote + "/*"));
	remoteConfig.update(config);
	config.save();


	RevCommit commit2 = git.commit().setMessage("Commit to push").call();

	RefSpec spec = new RefSpec(branch + ":" + branch);
	Iterable<PushResult> resultIterable = git.push().setRemote(remote)
	.setRefSpecs(spec).call();

	PushResult result = resultIterable.iterator().next();
	TrackingRefUpdate trackingRefUpdate = result
	.getTrackingRefUpdate(trackingBranch);

	assertNotNull(trackingRefUpdate);
	assertEquals(trackingBranch, trackingRefUpdate.getLocalName());
	assertEquals(branch, trackingRefUpdate.getRemoteName());
	assertEquals(commit2.getId(), trackingRefUpdate.getNewObjectId());
	assertEquals(commit2.getId(), db.resolve(trackingBranch));
	assertEquals(commit2.getId(), db2.resolve(branch));
	}
	}

	/**
	* Check that pushes over file protocol lead to appropriate ref-updates.
	*
	* @throws Exception
	*/
	@Test
	public void testPushRefUpdate() throws Exception {
	try (Git git = new Git(db);
	Git git2 = new Git(createBareRepository())) {
	final StoredConfig config = git.getRepository().getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
	.toURL());
	remoteConfig.addURI(uri);
	remoteConfig.addPushRefSpec(new RefSpec("+refs/heads/:refs/heads/"));
	remoteConfig.update(config);
	config.save();

	writeTrashFile("f", "content of f");
	git.add().addFilepattern("f").call();
	RevCommit commit = git.commit().setMessage("adding f").call();

	assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
	git.push().setRemote("test").call();
	assertEquals(commit.getId(),
	git2.getRepository().resolve("refs/heads/master"));

	git.branchCreate().setName("refs/heads/test").call();
	git.checkout().setName("refs/heads/test").call();

	for (int i = 0; i < 6; i++) {
	writeTrashFile("f" + i, "content of f" + i);
	git.add().addFilepattern("f" + i).call();
	commit = git.commit().setMessage("adding f" + i).call();
	git.push().setRemote("test").call();
	git2.getRepository().getAllRefs();
	assertEquals("failed to update on attempt " + i, commit.getId(),
	git2.getRepository().resolve("refs/heads/test"));
	}
	}
	}

	/**
	* Check that the push refspec is read from config.
	*
	* @throws Exception
	*/
	@Test
	public void testPushWithRefSpecFromConfig() throws Exception {
	try (Git git = new Git(db);
	Git git2 = new Git(createBareRepository())) {
	final StoredConfig config = git.getRepository().getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
	.toURL());
	remoteConfig.addURI(uri);
	remoteConfig.addPushRefSpec(new RefSpec("HEAD:refs/heads/newbranch"));
	remoteConfig.update(config);
	config.save();

	writeTrashFile("f", "content of f");
	git.add().addFilepattern("f").call();
	RevCommit commit = git.commit().setMessage("adding f").call();

	assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
	git.push().setRemote("test").call();
	assertEquals(commit.getId(),
	git2.getRepository().resolve("refs/heads/newbranch"));
	}
	}

	/**
	* Check that only HEAD is pushed if no refspec is given.
	*
	* @throws Exception
	*/
	@Test
	public void testPushWithoutPushRefSpec() throws Exception {
	try (Git git = new Git(db);
	Git git2 = new Git(createBareRepository())) {
	final StoredConfig config = git.getRepository().getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(git2.getRepository().getDirectory().toURI()
	.toURL());
	remoteConfig.addURI(uri);
	remoteConfig.addFetchRefSpec(new RefSpec(
	"+refs/heads/:refs/remotes/origin/"));
	remoteConfig.update(config);
	config.save();

	writeTrashFile("f", "content of f");
	git.add().addFilepattern("f").call();
	RevCommit commit = git.commit().setMessage("adding f").call();

	git.checkout().setName("not-pushed").setCreateBranch(true).call();
	git.checkout().setName("branchtopush").setCreateBranch(true).call();

	assertEquals(null,
	git2.getRepository().resolve("refs/heads/branchtopush"));
	assertEquals(null, git2.getRepository()
	.resolve("refs/heads/not-pushed"));
	assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
	git.push().setRemote("test").call();
	assertEquals(commit.getId(),
	git2.getRepository().resolve("refs/heads/branchtopush"));
	assertEquals(null, git2.getRepository()
	.resolve("refs/heads/not-pushed"));
	assertEquals(null, git2.getRepository().resolve("refs/heads/master"));
	}
	}

	/**
	* Check that missing refs don't cause errors during push
	*
	* @throws Exception
	*/
	@Test
	public void testPushAfterGC() throws Exception {
	// create other repository
	Repository db2 = createWorkRepository();

	// setup the first repository
	final StoredConfig config = db.getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(db2.getDirectory().toURI().toURL());
	remoteConfig.addURI(uri);
	remoteConfig.update(config);
	config.save();

	try (Git git1 = new Git(db);
	Git git2 = new Git(db2)) {
	// push master (with a new commit) to the remote
	git1.commit().setMessage("initial commit").call();

	RefSpec spec = new RefSpec("refs/heads/:refs/heads/");
	git1.push().setRemote("test").setRefSpecs(spec).call();

	// create an unrelated ref and a commit on our remote
	git2.branchCreate().setName("refs/heads/other").call();
	git2.checkout().setName("refs/heads/other").call();

	writeTrashFile("a", "content of a");
	git2.add().addFilepattern("a").call();
	RevCommit commit2 = git2.commit().setMessage("adding a").call();

	// run a gc to ensure we have a bitmap index
	Properties res = git1.gc().setExpire(null).call();
	assertEquals(7, res.size());

	// create another commit so we have something else to push
	writeTrashFile("b", "content of b");
	git1.add().addFilepattern("b").call();
	RevCommit commit3 = git1.commit().setMessage("adding b").call();

	try {
	// Re-run the push. Failure may happen here.
	git1.push().setRemote("test").setRefSpecs(spec).call();
	} catch (TransportException e) {
	assertTrue("should be caused by a MissingObjectException", e
	.getCause().getCause() instanceof MissingObjectException);
	fail("caught MissingObjectException for a change we don't have");
	}

	// Remote will have both a and b. Master will have only b
	try {
	db.resolve(commit2.getId().getName() + "^{commit}");
	fail("id shouldn't exist locally");
	} catch (MissingObjectException e) {
	// we should get here
	}
	assertEquals(commit2.getId(),
	db2.resolve(commit2.getId().getName() + "^{commit}"));
	assertEquals(commit3.getId(),
	db2.resolve(commit3.getId().getName() + "^{commit}"));
	}
	}

	@Test
	public void testPushWithLease() throws JGitInternalException, IOException,
	GitAPIException, URISyntaxException {

	// create other repository
	Repository db2 = createWorkRepository();

	// setup the first repository
	final StoredConfig config = db.getConfig();
	RemoteConfig remoteConfig = new RemoteConfig(config, "test");
	URIish uri = new URIish(db2.getDirectory().toURI().toURL());
	remoteConfig.addURI(uri);
	remoteConfig.update(config);
	config.save();

	try (Git git1 = new Git(db)) {
	// create one commit and push it
	RevCommit commit = git1.commit().setMessage("initial commit").call();
	git1.branchCreate().setName("initial").call();

	RefSpec spec = new RefSpec("refs/heads/master:refs/heads/x");
	git1.push().setRemote("test").setRefSpecs(spec)
	.call();

	assertEquals(commit.getId(),
	db2.resolve(commit.getId().getName() + "^{commit}"));
	//now try to force-push a new commit, with a good lease

	git1.commit().setMessage("second commit").call();
	Iterable<PushResult> results =
	git1.push().setRemote("test").setRefSpecs(spec)
	.setRefLeaseSpecs(new RefLeaseSpec("refs/heads/x", "initial"))
	.call();
	for (PushResult result : results) {
	RemoteRefUpdate update = result.getRemoteUpdate("refs/heads/x");
	assertEquals(update.getStatus(), RemoteRefUpdate.Status.OK);
	}

	git1.commit().setMessage("third commit").call();
	//now try to force-push a new commit, with a bad lease

	results =
	git1.push().setRemote("test").setRefSpecs(spec)
	.setRefLeaseSpecs(new RefLeaseSpec("refs/heads/x", "initial"))
	.call();
	for (PushResult result : results) {
	RemoteRefUpdate update = result.getRemoteUpdate("refs/heads/x");
	assertEquals(update.getStatus(), RemoteRefUpdate.Status.REJECTED_REMOTE_CHANGED);
	}
	}
	}
	}