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.

        throw new MissingBundlePrerequisiteException(transport.uri,
            missing);


      for (final Ref r : transport.local.getAllRefs().values()) {
        try {
          rw.markStart(rw.parseCommit(r.getObjectId()));
        } catch (IOException readError) {
          // If we cannot read the value of the ref skip it.
        }
      }

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    RevCommit localCommit = walk.parseCommit(local.getObjectId());
    RevCommit trackingCommit = walk.parseCommit(tracking.getObjectId());


    walk.setRevFilter(RevFilter.MERGE_BASE);
    walk.markStart(localCommit);
    walk.markStart(trackingCommit);
    RevCommit mergeBase = walk.next();


    walk.reset();
    walk.setRevFilter(RevFilter.ALL);

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    RevCommit localCommit = walk.parseCommit(local.getObjectId());
    RevCommit trackingCommit = walk.parseCommit(tracking.getObjectId());


    walk.setRevFilter(RevFilter.MERGE_BASE);
    walk.markStart(localCommit);
    walk.markStart(trackingCommit);
    RevCommit mergeBase = walk.next();


    walk.reset();
    walk.setRevFilter(RevFilter.ALL);
    int aheadCount = RevWalkUtils.count(walk, localCommit, mergeBase);

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        rw.setTreeFilter(filter);
      }


      RevCommit headCommit = rw.parseCommit(repository.getRef(
          Constants.HEAD).getObjectId());
      rw.markStart(headCommit);
      headCommit = rw.next();


      if (headCommit == null)
        return result;
      List<RevCommit> directParents = Arrays.asList(headCommit

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      rw.setRevFilter(RevFilter.MERGE_BASE);
      startPoints.add(rightCommit);
      startPoints.add(headCommit);
      RevCommit ancestorCommit;
      try {
        rw.markStart(startPoints);
        ancestorCommit = rw.next();
      } catch (Exception e) {
        ancestorCommit = null;
      }

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        //$FALL-THROUGH$
      case FAST_FORWARD:
        RevWalk walk = new RevWalk(reader);
        try {
          walk.setRetainBody(true);
          walk.markStart(walk.parseCommit(update.getNewObjectId()));
          walk.markUninteresting(walk.parseCommit(update
              .getOldObjectId()));
          List<RepositoryCommit> commits = new ArrayList<RepositoryCommit>();
          for (RevCommit commit : walk)
            commits.add(new RepositoryCommit(repo, commit));

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        if (headCommit != null)
          commits.add(walk.parseCommit(headCommit));
      }


      if (!commits.isEmpty()) {
        walk.markStart(commits);
        for (RevCommit commit : walk) {
          if (monitor.isCanceled())
            throw new OperationCanceledException();
          for (SearchMatcher matcher : this.matchers)
            if (matcher.matches(pattern, commit)) {

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      RevCommit latestFileCommit;
      RevWalk rw = new RevWalk(repository);
      try {
        RevCommit headCommit = rw.parseCommit(head.getObjectId());
        rw.markStart(headCommit);
        rw.setTreeFilter(AndTreeFilter.create(
            PathFilter.create(repoRelativePath),
            TreeFilter.ANY_DIFF));
        latestFileCommit = rw.next();
        // Fall back to HEAD

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  private RepositoryCommit[] getCommits(Ref end) {
    final RevWalk walk = new RevWalk(reader);
    try {
      walk.setRetainBody(true);
      walk.markStart(walk.parseCommit(update.getNewObjectId()));
      walk.markUninteresting(walk.parseCommit(end.getObjectId()));
      List<RepositoryCommit> commits = new ArrayList<RepositoryCommit>();
      for (RevCommit commit : walk)
        commits.add(new RepositoryCommit(repo, commit));
      return commits.toArray(new RepositoryCommit[commits.size()]);

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    try {
      revWalk.sort(RevSort.COMMIT_TIME_DESC, true);
      revWalk.sort(RevSort.BOUNDARY, true);
      AnyObjectId headId = repo.resolve(Constants.HEAD);
      if (headId != null)
        revWalk.markStart(revWalk.parseCommit(headId));
      // do the walk to get the commits
      long count = 0;
      RevCommit commit;
      while ((commit = revWalk.next()) != null
          && count < MAX_COMMIT_COUNT) {

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