/*
    * 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
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   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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  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(String name, 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().getRefDatabase().getRefs();
 				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);
 			}
 		}
 	}
 }