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 (!localCommit.equals(remoteCommit))
            {
                behind = true;
                walk.setRevFilter(RevFilter.MERGE_BASE);
                walk.markStart(localCommit);
                walk.markStart(remoteCommit);


                RevCommit base = walk.next();
                if (null != base)
                {

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            if (!localCommit.equals(remoteCommit))
            {
                behind = true;
                walk.setRevFilter(RevFilter.MERGE_BASE);
                walk.markStart(localCommit);
                walk.markStart(remoteCommit);


                RevCommit base = walk.next();
                if (null != base)
                {
                    walk.parseBody(base);

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          // The branch rewound. Walk the list of commits removed from
          // the reference. If any matches to a tag, this has to be removed.
          boolean err = false;
          rw.reset();
          rw.markStart(savedCommit);
          rw.markUninteresting(currentCommit);
          rw.sort(RevSort.TOPO, true);
          RevCommit c;
          while ((c = rw.next()) != null) {
            Tag tag = tags.get(c);

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    // Scan history until the advertisement is full.
    Set<ObjectId> alreadySending = rp.getAdvertisedObjects();
    RevWalk rw = rp.getRevWalk();
    for (ObjectId haveId : alreadySending) {
      try {
        rw.markStart(rw.parseCommit(haveId));
      } catch (IOException badCommit) {
        continue;
      }
    }

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      final RevFilter oldRevFilter = walk.getRevFilter();
      try {
        walk.reset();
        walk.setRevFilter(RevFilter.MERGE_BASE);
        walk.markStart(tip);
        walk.markStart(h);
        if (walk.next() == null) {
          reject(newChange, "no common ancestry");
          return;
        }

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      final RevFilter oldRevFilter = walk.getRevFilter();
      try {
        walk.reset();
        walk.setRevFilter(RevFilter.MERGE_BASE);
        walk.markStart(tip);
        walk.markStart(h);
        if (walk.next() == null) {
          reject(newChange, "no common ancestry");
          return;
        }
      } finally {

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    final RevWalk walk = rp.getRevWalk();
    walk.reset();
    walk.sort(RevSort.TOPO);
    walk.sort(RevSort.REVERSE, true);
    try {
      walk.markStart(walk.parseCommit(newChange.getNewId()));
      for (ObjectId id : existingObjects()) {
        try {
          walk.markUninteresting(walk.parseCommit(id));
        } catch (IOException e) {
          continue;

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  private void validateNewCommits(RefControl ctl, ReceiveCommand cmd) {
    final RevWalk walk = rp.getRevWalk();
    walk.reset();
    walk.sort(RevSort.NONE);
    try {
      walk.markStart(walk.parseCommit(cmd.getNewId()));
      for (ObjectId id : existingObjects()) {
        try {
          walk.markUninteresting(walk.parseCommit(id));
        } catch (IOException e) {
          continue;

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  private void autoCloseChanges(final ReceiveCommand cmd) {
    final RevWalk rw = rp.getRevWalk();
    try {
      rw.reset();
      rw.markStart(rw.parseCommit(cmd.getNewId()));
      if (!ObjectId.zeroId().equals(cmd.getOldId())) {
        rw.markUninteresting(rw.parseCommit(cmd.getOldId()));
      }


      final Map<ObjectId, Ref> byCommit = changeRefsById();

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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 Function<Ref, RevCommit>() {
                        @Override
                        public RevCommit apply(Ref ref) {

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