Examples of org.eclipse.jgit.revwalk.RevWalk.markStart()

org.eclipse.jgit.revwalk.RevWalk.markStart()
Mark a commit to start graph traversal from.
Callers are encouraged to use {@link #parseCommit(AnyObjectId)} to obtainthe commit reference, rather than {@link #lookupCommit(AnyObjectId)}, as this method requires the commit to be parsed before it can be added as a root for the traversal.
The method will automatically parse an unparsed commit, but error handling may be more difficult for the application to explain why a RevCommit is not actually a commit. The object pool of this walker would also be 'poisoned' by the non-commit RevCommit. @param c the commit to start traversing from. The commit passed must be from this same revision walker. @throws MissingObjectException the commit supplied is not available from the object database. This usually indicates the supplied commit is invalid, but the reference was constructed during an earlier invocation to {@link #lookupCommit(AnyObjectId)}. @throws IncorrectObjectTypeException the object was not parsed yet and it was discovered during parsing that it is not actually a commit. This usually indicates the caller supplied a non-commit SHA-1 to {@link #lookupCommit(AnyObjectId)}. @throws IOException a pack file or loose object could not be read.

        if ( toRevId != null )
        {
            RevCommit c = walk.parseCommit( toRevId );
            c.remove( RevFlag.UNINTERESTING );
            RevCommit real = walk.parseCommit( c );
            walk.markStart( real );
        }
        else
        {
            final ObjectId head = repo.resolve( Constants.HEAD );
            if ( head == null )

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            if ( head == null )
            {
                throw new RuntimeException( "Cannot resolve " + Constants.HEAD );
            }
            RevCommit real = walk.parseCommit( head );
            walk.markStart( real );
        }


        int n = 0;
        for ( final RevCommit c : walk )
        {

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    public void walkCommits(CommitWalkAction action)
            throws GitRepositoryException {
        try {
            RevWalk revWalk = this.getRevWalk();
            revWalk.markStart(this.getCommit(this.getHeadObject()));


            RevCommit commit;
            while((commit = revWalk.next()) != null) {
                action.execute(new JGitCommit(commit));
            }

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    @Override
    public Context apply(final Context context) {
        try {
            final RevWalk walk = new RevWalk(context.getRepository());


            walk.markStart(
                FluentIterable
                    .from(context.getRefs())
                    .transform(new RefToRevCommit(walk))
                    .toList()
            );

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    @Override
    public Context apply(final Context context) {
        try {
            final RevWalk walk = new RevWalk(context.getRepository());


            walk.markStart(
                FluentIterable
                    .from(context.getRefs())
                    .transform(new RefToRevCommit(walk))
                    .toList()
            );

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            if (!localCommit.equals(remoteCommit))
            {
                reporter.debugText(getCommandName(),localCommit.getName() + " !equals " + remoteCommit.getName());
                behind = true;
                walk.setRevFilter(RevFilter.MERGE_BASE);
                walk.markStart(localCommit);
                walk.markStart(remoteCommit);


                RevCommit base = walk.next();
                reporter.debugText(getCommandName(),"checking if remote is at our merge base");
                if (null != base)

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            {
                reporter.debugText(getCommandName(),localCommit.getName() + " !equals " + remoteCommit.getName());
                behind = true;
                walk.setRevFilter(RevFilter.MERGE_BASE);
                walk.markStart(localCommit);
                walk.markStart(remoteCommit);


                RevCommit base = walk.next();
                reporter.debugText(getCommandName(),"checking if remote is at our merge base");
                if (null != base)
                {

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        try {
            walk = new RevWalk(repository);
            ObjectId from = repository.resolve(fromBranch);
            ObjectId to = repository.resolve(toBranch);


            walk.markStart(walk.parseCommit(from));
            walk.markUninteresting(walk.parseCommit(to));


            return IteratorUtils.toList(walk.iterator());
        } finally {
            if (walk != null) {

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    private static User getAuthorFromFirstCommit(Repository repository, String path, RevCommit start)
            throws IOException {
        RevWalk revWalk = null;
        try {
            revWalk = new RevWalk(repository);
            revWalk.markStart(start);
            revWalk.setTreeFilter(PathFilter.create(path));
            revWalk.sort(RevSort.REVERSE);
            RevCommit commit = revWalk.next();
            if (commit == null) {
                return User.anonymous;

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        try {
            ObjectId endRange = command.getNewId();
            ObjectId startRange = command.getOldId();


            RevWalk rw = new RevWalk(repository);
            rw.markStart(rw.parseCommit(endRange));
            if (startRange.equals(ObjectId.zeroId())) {
                // maybe this is a tag or an orphan branch
                list.add(rw.parseCommit(endRange));
                rw.dispose();
                return list;

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