org.eclipse.jgit.api.errors.NoHeadException Java Examples

private Git refreshRepository(GitSyncDetails syncDetails, File syncDir)
		throws GitAPIException, InvalidRemoteException, TransportException, IOException,
		WrongRepositoryStateException, InvalidConfigurationException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException {
	Git repo;
	if (!syncDir.exists()) {
		syncDir.mkdirs();
		repo = initWith(Git.cloneRepository(), syncDetails)
			.setURI(syncDetails.getGitUrl())
			.setDirectory(syncDir)
			.setCloneAllBranches(true)
			.setBranch("master")
			.call();
		
		
	} else {
		repo = Git.open(syncDir);
		initWith(repo.pull(), syncDetails)
			.call();
	}
	return repo;
}
 

public static void main(final String[] args) throws NoWorkTreeException,
		NoHeadException, IOException, GitAPIException {
	if (args.length != 4) {
		System.err
				.println("Usage <datafile> <prefix> <repositoryDir> <outputFilePrefix>");
		System.exit(-1);
	}
	final SvnToGitMapper mapper = new SvnToGitMapper(args[2]);
	final RepentDataParser rdp = new RepentDataParser(new File(args[0]),
			mapper.mapSvnToGit(), args[1], new Predicate<Integer>() {

				@Override
				public boolean test(final Integer t) {
					return t > 250;
				}
			});
	final List<Renaming> renamings = rdp.parse();
	final Multimap<String, Renaming> renamingsPerSha = mapRenamingsToTargetSha(renamings);
	final BindingExtractor be = new BindingExtractor(args[2],
			renamingsPerSha);
	be.doWalk();

	writeJson(args[3], "_variables.json", be.renamedVariablesDatapoints);
	writeJson(args[3], "_methoddeclarations.json",
			be.renamedMethodDeclarationsDatapoints);
}
 

/**
 * @param args
 * @throws IOException
 * @throws GitAPIException
 * @throws NoHeadException
 * @throws NoWorkTreeException
 */
public static void main(final String[] args) throws IOException,
		NoWorkTreeException, NoHeadException, GitAPIException {
	if (args.length != 3) {
		System.err.println("Usage <datafile> <prefix> <repositoryDir>");
		System.exit(-1);
	}
	final SvnToGitMapper mapper = new SvnToGitMapper(args[2]);
	final RepentDataParser rdp = new RepentDataParser(new File(args[0]),
			mapper.mapSvnToGit(), args[1], new Predicate<Integer>() {

				@Override
				public boolean test(final Integer t) {
					return t < 250;
				}
			});
	final List<Renaming> renamings = rdp.parse();
	for (final Renaming renaming : renamings) {
		System.out.println(renaming);
	}
	System.out.println("Num Renamings: " + renamings.size());
}
 

public static void pullRepository() {
	try {
 	logger.info("Scanning devices folder for changes.");
 	git.add().addFilepattern(".").call();
 	Status status = git.status().call();
 	if (status.getChanged().size()>0 || status.getAdded().size()>0 || status.getModified().size()>0) {
 		logger.info("Changes have been found. Doing a hard reset (removing user modifications).");
 		ResetCommand reset = git.reset();
 		reset.setMode(ResetType.HARD);
 		reset.setRef(Constants.HEAD);
 		reset.call();
 	}
 	logger.info("Pulling changes from github.");
 	git.pull().call();
	} catch (NoHeadException e) {
		logger.info("Pull failed. Trying to clone repository instead");
		closeRepository();
		cloneRepository();
	}
	catch (Exception e1) {
		closeRepository();
	}
}
 

public BiMap<Integer, String> mapSvnToGit() throws IOException,
		NoWorkTreeException, NoHeadException, GitAPIException {
	final BiMap<Integer, String> mappings = HashBiMap.create();
	final Git repository = GitCommitUtils
			.getGitRepository(repositoryDirectory);

	for (final RevCommit commit : GitCommitUtils
			.getAllCommitsTopological(repository)) {
		final String message = commit.getFullMessage();
		if (!message.contains("git-svn-id")) {
			continue;
		}
		final Matcher matcher = svnIdMatcher.matcher(message);
		matcher.find();
		mappings.put(Integer.parseInt(matcher.group(1)), commit.name());
	}

	return mappings;
}
 

public static boolean pull(String projectPath, String branch, String user, String pwd) throws IOException, WrongRepositoryStateException, InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException, RefNotAdvertisedException, NoHeadException, TransportException, GitAPIException {

		try (Git git = Git.open(new File(projectPath)) ) {
			UsernamePasswordCredentialsProvider provider = new UsernamePasswordCredentialsProvider(user, pwd);
			git.pull().setRemoteBranchName(branch)
					.setCredentialsProvider(provider)
					.setProgressMonitor(new PullProgressMonitor())
					.call();
		}
		
		return true;
	}
 

@Test
public void testOrdering() throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException,
        NoWorkTreeException, MissingObjectException,
        IncorrectObjectTypeException, IOException {
    tag("3.0.0");
    makeCommit();
    RevCommit head = makeCommit();
    tag("1.0.0");
    validateUnstable("3.0.0", 2, head, Dirty.NO, DASH);
}
 

@Test
public void testUnstableIsDirty() throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException,
        NoWorkTreeException, MissingObjectException,
        IncorrectObjectTypeException, IOException {
    RevCommit commit = makeCommit();
    tag("0.1.0-dev");
    dirtyRepo();
    validateUnstable("0.1.0-dev", 0, commit, Dirty.YES, DOT);
}
 

@Test
public void testVUnnecessary() throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException,
        NoWorkTreeException, IOException {
    makeCommit();
    tag("0.1.0");
    validateStableTag("0.1.0");
}
 

@Test
public void testCommitCount() throws NoHeadException, NoMessageException,
        UnmergedPathsException, ConcurrentRefUpdateException,
        WrongRepositoryStateException, GitAPIException,
        NoWorkTreeException, IOException {
    tag("v0.1.1-rc");
    makeCommit();
    makeCommit();
    RevCommit head = makeCommit();
    validateUnstable("0.1.1-rc", 3, head, Dirty.NO, DOT);
}
 

@Test
public void testHeadPointsOneAboveStable()
        throws ConcurrentRefUpdateException, InvalidTagNameException,
        NoHeadException, GitAPIException, NoWorkTreeException,
        MissingObjectException, IncorrectObjectTypeException, IOException {
    tag("v1.0.0");
    RevCommit head = makeCommit();
    validateUnstable("1.0.0", 1, head, Dirty.NO, DOT);
}
 

@Test
public void testHeadPointsAtStableWhenUsingPrefix() throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException,
        NoWorkTreeException, MissingObjectException,
        IncorrectObjectTypeException, IOException {
    versionFactory = new TagBasedVersionFactory("myPrefix");
    tag("myPrefix-v1.0.0");
    validateStableTag("1.0.0");
}
 

@Test
public void testHeadPointsAtStable() throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException,
        NoWorkTreeException, MissingObjectException,
        IncorrectObjectTypeException, IOException {
    tag("v1.0.0");
    validateStableTag("1.0.0");
}
 

@Before
public void createVersionFactory() throws IOException, NoHeadException,
        NoMessageException, UnmergedPathsException,
        ConcurrentRefUpdateException, WrongRepositoryStateException,
        GitAPIException {
    repo = createRepository();
    git = initializeGitFlow(repo);
    versionFactory = new TagBasedVersionFactory();
}
 

/**
 * @param args
 * @throws GitAPIException
 * @throws IOException
 * @throws NoHeadException
 * @throws NoWorkTreeException
 */
public static void main(final String[] args) throws NoWorkTreeException,
		NoHeadException, IOException, GitAPIException {
	if (args.length != 1) {
		System.err.println("Usage <repository>");
		System.exit(-1);
	}
	final SvnToGitMapper mapper = new SvnToGitMapper(args[0]);
	System.out.println(mapper.mapSvnToGit());
}
 

public void setRemoreCommits() throws IOException, RevisionSyntaxException, NoHeadException, GitAPIException {
	System.out.println(localPath + "/.git");

	/////////////////////// this should be move to an instance variable

	// stores into appropriate instance variables (HashMap localCommits) the commits
	// of each branch
	for (int i = 0; i < remoteBranches.size(); i++) {

		// for each branch create a list of lists with the total commits
		// the next for loop stores the list of all commits of each branch
		// to allCommitsSpecificBranchRemote list and then add that list to allCommits
		// list
		List<String> allCommitsSpecificBranchRemote = new ArrayList<>();

		// loop for each commit of all the commits of each branch
		for (RevCommit commit : repo.log().add(myrepo.resolve(remoteBranches.get(i))).call()) {

			allCommitsSpecificBranchRemote.add(commit.getName());

		}

		// after each loop it adds allCommitsSpecificBranchRemote List to allCommits
		// list of lists
		// allCommits.add(allCommitsSpecificBranchRemote);

		// stores all commits lists with key value of a specific branch to hashmap
		// remoteCommits
		remoteCommits.put(remoteBranches.get(i), allCommitsSpecificBranchRemote);
		// remoteCommits.put(remoteBranches.get(i), allCommits.get(i));

	}

	this.getCommits(remoteCommits);

	// myrepo.close();

}
 

private static void pull(final Git git, ProgressMonitor monitor)
		throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	git.pull().setTransportConfigCallback(TRANSPORT_CALLBACK).setProgressMonitor(monitor).call();
}
 

private static void pull(final Git git, IProgressMonitor monitor)
		throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	@SuppressWarnings("restriction")
	ProgressMonitor gitMonitor = (null == monitor) ? createMonitor()
			: new org.eclipse.egit.core.EclipseGitProgressTransformer(monitor);
	pull(git, gitMonitor);
}
 

public void pullFromRepo()
		throws IOException, WrongRepositoryStateException, InvalidConfigurationException, DetachedHeadException,
		InvalidRemoteException, CanceledException, RefNotFoundException, NoHeadException, GitAPIException {
	git.pull().call();
}
 

public void commitToRepo(String message) throws IOException, NoHeadException, NoMessageException,
		ConcurrentRefUpdateException, JGitInternalException, WrongRepositoryStateException, GitAPIException {
	git.commit().setMessage(message).call();
}
 

@SuppressWarnings("unchecked")
public void loadGitRepository(File gitProjectRootDir) throws IOException, GitAPIException {
    gitRepo = openRepository(gitProjectRootDir);

    try (final Git git = new Git(gitRepo)) {

        // Check if remote exists.
        if (!isEmpty(remoteToPush)) {
            final List<RemoteConfig> remotes = git.remoteList().call();
            final boolean isRemoteExist = remotes.stream().anyMatch(remote -> remote.getName().equals(remoteToPush));
            if (!isRemoteExist) {
                final List<String> remoteNames = remotes.stream().map(RemoteConfig::getName).collect(Collectors.toList());
                throw new IllegalArgumentException(
                        format("The configured remote '%s' to push does not exist. Available remotes are %s", remoteToPush, remoteNames));
            }
        }

        boolean isLatestCommit = true;
        try {
            for (RevCommit commit : git.log().call()) {
                final String shortCommitId = commit.getId().abbreviate(7).name();
                logger.debug("Processing a commit: {}", shortCommitId);
                final RevTree tree = commit.getTree();

                try (final TreeWalk treeWalk = new TreeWalk(gitRepo)) {
                    treeWalk.addTree(tree);

                    // Path -> ObjectId
                    final Map<String, ObjectId> bucketObjectIds = new HashMap<>();
                    final Map<String, ObjectId> flowSnapshotObjectIds = new HashMap<>();
                    while (treeWalk.next()) {
                        if (treeWalk.isSubtree()) {
                            treeWalk.enterSubtree();
                        } else {
                            final String pathString = treeWalk.getPathString();
                            // TODO: what is this nth?? When does it get grater than 0? Tree count seems to be always 1..
                            if (pathString.endsWith("/" + BUCKET_FILENAME)) {
                                bucketObjectIds.put(pathString, treeWalk.getObjectId(0));
                            } else if (pathString.endsWith(GitFlowPersistenceProvider.SNAPSHOT_EXTENSION)) {
                                flowSnapshotObjectIds.put(pathString, treeWalk.getObjectId(0));
                            }
                        }
                    }

                    if (bucketObjectIds.isEmpty()) {
                        // No bucket.yml means at this point, all flows are deleted. No need to scan older commits because those are already deleted.
                        logger.debug("Tree at commit {} does not contain any " + BUCKET_FILENAME + ". Stop loading commits here.", shortCommitId);
                        return;
                    }

                    loadBuckets(gitRepo, commit, isLatestCommit, bucketObjectIds, flowSnapshotObjectIds);
                    isLatestCommit = false;
                }
            }
        } catch (NoHeadException e) {
            logger.debug("'{}' does not have any commit yet. Starting with empty buckets.", gitProjectRootDir);
        }

    }
}
 

/**
 * Executes the {@code Log} command with all the options and parameters collected by the setter methods (e.g. {@link #add(AnyObjectId)},
 * {@link #not(AnyObjectId)}, ..) of this class. Each instance of this class should only be used for one invocation of the command. Don't call this method
 * twice on an instance.
 *
 * @return an iteration over RevCommits
 * @throws NoHeadException
 *             of the references ref cannot be resolved
 */
@Override
public Iterable<RevCommit> call() throws GitAPIException, NoHeadException {
	checkCallable();
	ArrayList<RevFilter> filters = new ArrayList<RevFilter>();

	if (pathFilters.size() > 0)
		walk.setTreeFilter(AndTreeFilter.create(PathFilterGroup.create(pathFilters), TreeFilter.ANY_DIFF));

	if (msgFilter != null)
		filters.add(msgFilter);
	if (authorFilter != null)
		filters.add(authorFilter);
	if (committerFilter != null)
		filters.add(committerFilter);
	if (sha1Filter != null)
		filters.add(sha1Filter);
	if (dateFilter != null)
		filters.add(dateFilter);
	if (skip > -1)
		filters.add(SkipRevFilter.create(skip));
	if (maxCount > -1)
		filters.add(MaxCountRevFilter.create(maxCount));
	RevFilter filter = null;
	if (filters.size() > 1) {
		filter = AndRevFilter.create(filters);
	} else if (filters.size() == 1) {
		filter = filters.get(0);
	}

	if (filter != null)
		walk.setRevFilter(filter);

	if (!startSpecified) {
		try {
			ObjectId headId = repo.resolve(Constants.HEAD);
			if (headId == null)
				throw new NoHeadException(JGitText.get().noHEADExistsAndNoExplicitStartingRevisionWasSpecified);
			add(headId);
		} catch (IOException e) {
			// all exceptions thrown by add() shouldn't occur and represent
			// severe low-level exception which are therefore wrapped
			throw new JGitInternalException(JGitText.get().anExceptionOccurredWhileTryingToAddTheIdOfHEAD, e);
		}
	}
	setCallable(false);
	return walk;
}
 

private static void pull(final Git git) throws GitAPIException, WrongRepositoryStateException,
		InvalidConfigurationException, InvalidRemoteException, CanceledException, RefNotFoundException,
		RefNotAdvertisedException, NoHeadException, TransportException {

	pull(git, (ProgressMonitor) null);
}
 

private Ref tag(String tagName) throws ConcurrentRefUpdateException,
        InvalidTagNameException, NoHeadException, GitAPIException {
    return git.tag().setMessage("blah").setName(tagName).call();
}
 

private RevCommit makeCommit() throws NoHeadException, NoMessageException,
        UnmergedPathsException, ConcurrentRefUpdateException,
        WrongRepositoryStateException, GitAPIException {
    return git.commit().setCommitter(COMMITTER).setMessage("some commit").call();
}