/*
    * 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.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.junit.RepositoryTestCase;
  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.RefSpec;
  import org.eclipse.jgit.transport.RemoteConfig;
  import org.eclipse.jgit.transport.TrackingRefUpdate;
  import org.eclipse.jgit.transport.URIish;
  import org.junit.Test;
  
  public class PushCommandTest extends RepositoryTestCase {
  
  	@Test
  	public void testPush() 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();
  
  		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 testTrackingUpdate() throws Exception {
 		Repository db2 = createBareRepository();
 
 		String remote = "origin";
 		String branch = "refs/heads/master";
 		String trackingBranch = "refs/remotes/" + remote + "/master";
 
 		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 {
 		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 {
 		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 {
 		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();
 
 		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}"));
 	}
 }