Examples with TreeWalk org.eclipse.jgit.treewalk.TreeWalk used on opensource projects

Example 16 with TreeWalk

use of org.eclipse.jgit.treewalk.TreeWalk in project che by eclipse.

the class JGitConnection method getCommitDiffFiles.

private List<DiffCommitFile> getCommitDiffFiles(RevCommit revCommit, String pattern) throws IOException {
    List<DiffEntry> diffs;
    TreeFilter filter = null;
    if (!isNullOrEmpty(pattern)) {
        filter = AndTreeFilter.create(PathFilterGroup.createFromStrings(Collections.singleton(pattern)), TreeFilter.ANY_DIFF);
    }
    List<DiffCommitFile> commitFilesList = new ArrayList<>();
    try (TreeWalk tw = new TreeWalk(repository)) {
        tw.setRecursive(true);
        // and to get the list of DiffEntry.
        if (revCommit.getParentCount() > 0) {
            RevCommit parent = parseCommit(revCommit.getParent(0));
            tw.reset(parent.getTree(), revCommit.getTree());
            if (filter != null) {
                tw.setFilter(filter);
            } else {
                tw.setFilter(TreeFilter.ANY_DIFF);
            }
            diffs = DiffEntry.scan(tw);
        } else {
            // list of DiffEntry.
            try (RevWalk rw = new RevWalk(repository);
                DiffFormatter diffFormat = new DiffFormatter(NullOutputStream.INSTANCE)) {
                diffFormat.setRepository(repository);
                if (filter != null) {
                    diffFormat.setPathFilter(filter);
                }
                diffs = diffFormat.scan(new EmptyTreeIterator(), new CanonicalTreeParser(null, rw.getObjectReader(), revCommit.getTree()));
            }
        }
    }
    if (diffs != null) {
        commitFilesList.addAll(diffs.stream().map(diff -> newDto(DiffCommitFile.class).withOldPath(diff.getOldPath()).withNewPath(diff.getNewPath()).withChangeType(diff.getChangeType().name())).collect(Collectors.toList()));
    }
    return commitFilesList;
}

Example 17 with TreeWalk

use of org.eclipse.jgit.treewalk.TreeWalk in project che by eclipse.

the class JGitConnection method showFileContent.

@Override
public ShowFileContentResponse showFileContent(String file, String version) throws GitException {
    String content;
    ObjectId revision;
    try {
        revision = getRepository().resolve(version);
        try (RevWalk revWalk = new RevWalk(getRepository())) {
            RevCommit revCommit = revWalk.parseCommit(revision);
            RevTree tree = revCommit.getTree();
            try (TreeWalk treeWalk = new TreeWalk(getRepository())) {
                treeWalk.addTree(tree);
                treeWalk.setRecursive(true);
                treeWalk.setFilter(PathFilter.create(file));
                if (!treeWalk.next()) {
                    throw new GitException("fatal: Path '" + file + "' does not exist in '" + version + "'" + lineSeparator());
                }
                ObjectId objectId = treeWalk.getObjectId(0);
                ObjectLoader loader = repository.open(objectId);
                content = new String(loader.getBytes());
            }
        }
    } catch (IOException exception) {
        throw new GitException(exception.getMessage());
    }
    return newDto(ShowFileContentResponse.class).withContent(content);
}

Example 18 with TreeWalk

use of org.eclipse.jgit.treewalk.TreeWalk in project gitblit by gitblit.

the class JGitUtils method getByteContent.

/**
	 * Retrieves the raw byte content of a file in the specified tree.
	 *
	 * @param repository
	 * @param tree
	 *            if null, the RevTree from HEAD is assumed.
	 * @param path
	 * @return content as a byte []
	 */
public static byte[] getByteContent(Repository repository, RevTree tree, final String path, boolean throwError) {
    RevWalk rw = new RevWalk(repository);
    TreeWalk tw = new TreeWalk(repository);
    tw.setFilter(PathFilterGroup.createFromStrings(Collections.singleton(path)));
    byte[] content = null;
    try {
        if (tree == null) {
            ObjectId object = getDefaultBranch(repository);
            if (object == null)
                return null;
            RevCommit commit = rw.parseCommit(object);
            tree = commit.getTree();
        }
        tw.reset(tree);
        while (tw.next()) {
            if (tw.isSubtree() && !path.equals(tw.getPathString())) {
                tw.enterSubtree();
                continue;
            }
            ObjectId entid = tw.getObjectId(0);
            FileMode entmode = tw.getFileMode(0);
            if (entmode != FileMode.GITLINK) {
                ObjectLoader ldr = repository.open(entid, Constants.OBJ_BLOB);
                content = ldr.getCachedBytes();
            }
        }
    } catch (Throwable t) {
        if (throwError) {
            error(t, repository, "{0} can't find {1} in tree {2}", path, tree.name());
        }
    } finally {
        rw.dispose();
        tw.close();
    }
    return content;
}

Example 19 with TreeWalk

use of org.eclipse.jgit.treewalk.TreeWalk in project gitblit by gitblit.

the class JGitUtils method getFilesInCommit.

/**
	 * Returns the list of files changed in a specified commit. If the
	 * repository does not exist or is empty, an empty list is returned.
	 *
	 * @param repository
	 * @param commit
	 *            if null, HEAD is assumed.
	 * @param calculateDiffStat
	 *            if true, each PathChangeModel will have insertions/deletions
	 * @return list of files changed in a commit
	 */
public static List<PathChangeModel> getFilesInCommit(Repository repository, RevCommit commit, boolean calculateDiffStat) {
    List<PathChangeModel> list = new ArrayList<PathChangeModel>();
    if (!hasCommits(repository)) {
        return list;
    }
    RevWalk rw = new RevWalk(repository);
    try {
        if (commit == null) {
            ObjectId object = getDefaultBranch(repository);
            commit = rw.parseCommit(object);
        }
        if (commit.getParentCount() == 0) {
            TreeWalk tw = new TreeWalk(repository);
            tw.reset();
            tw.setRecursive(true);
            tw.addTree(commit.getTree());
            while (tw.next()) {
                long size = 0;
                FilestoreModel filestoreItem = null;
                ObjectId objectId = tw.getObjectId(0);
                try {
                    if (!tw.isSubtree() && (tw.getFileMode(0) != FileMode.GITLINK)) {
                        size = tw.getObjectReader().getObjectSize(objectId, Constants.OBJ_BLOB);
                        if (isPossibleFilestoreItem(size)) {
                            filestoreItem = getFilestoreItem(tw.getObjectReader().open(objectId));
                        }
                    }
                } catch (Throwable t) {
                    error(t, null, "failed to retrieve blob size for " + tw.getPathString());
                }
                list.add(new PathChangeModel(tw.getPathString(), tw.getPathString(), filestoreItem, size, tw.getRawMode(0), objectId.getName(), commit.getId().getName(), ChangeType.ADD));
            }
            tw.close();
        } else {
            RevCommit parent = rw.parseCommit(commit.getParent(0).getId());
            DiffStatFormatter df = new DiffStatFormatter(commit.getName(), repository);
            df.setRepository(repository);
            df.setDiffComparator(RawTextComparator.DEFAULT);
            df.setDetectRenames(true);
            List<DiffEntry> diffs = df.scan(parent.getTree(), commit.getTree());
            for (DiffEntry diff : diffs) {
                // create the path change model
                PathChangeModel pcm = PathChangeModel.from(diff, commit.getName(), repository);
                if (calculateDiffStat) {
                    // update file diffstats
                    df.format(diff);
                    PathChangeModel pathStat = df.getDiffStat().getPath(pcm.path);
                    if (pathStat != null) {
                        pcm.insertions = pathStat.insertions;
                        pcm.deletions = pathStat.deletions;
                    }
                }
                list.add(pcm);
            }
        }
    } catch (Throwable t) {
        error(t, repository, "{0} failed to determine files in commit!");
    } finally {
        rw.dispose();
    }
    return list;
}

Example 20 with TreeWalk

use of org.eclipse.jgit.treewalk.TreeWalk in project gitblit by gitblit.

the class JGitUtils method getSubmoduleCommitId.

public static String getSubmoduleCommitId(Repository repository, String path, RevCommit commit) {
    String commitId = null;
    RevWalk rw = new RevWalk(repository);
    TreeWalk tw = new TreeWalk(repository);
    tw.setFilter(PathFilterGroup.createFromStrings(Collections.singleton(path)));
    try {
        tw.reset(commit.getTree());
        while (tw.next()) {
            if (tw.isSubtree() && !path.equals(tw.getPathString())) {
                tw.enterSubtree();
                continue;
            }
            if (FileMode.GITLINK == tw.getFileMode(0)) {
                commitId = tw.getObjectId(0).getName();
                break;
            }
        }
    } catch (Throwable t) {
        error(t, repository, "{0} can't find {1} in commit {2}", path, commit.name());
    } finally {
        rw.dispose();
        tw.close();
    }
    return commitId;
}