Examples with RevTree org.eclipse.jgit.revwalk.RevTree used on opensource projects

Example 26 with RevTree

use of org.eclipse.jgit.revwalk.RevTree in project gitiles by GerritCodeReview.

the class TimeCacheTest method treeAndBlobTime.

@Test
public void treeAndBlobTime() throws Exception {
    RevBlob blob = repo.blob("contents");
    RevTree tree = repo.tree(repo.file("foo", blob));
    assertThat(getTime(blob)).isEqualTo(Long.MIN_VALUE);
    assertThat(getTime(tree)).isEqualTo(Long.MIN_VALUE);
}

Example 27 with RevTree

use of org.eclipse.jgit.revwalk.RevTree in project gerrit by GerritCodeReview.

the class VersionedMetaData method openUpdate.

/**
   * Open a batch of updates to the same metadata ref.
   *
   * <p>This allows making multiple commits to a single metadata ref, at the end of which is a
   * single ref update. For batching together updates to multiple refs (each consisting of one or
   * more commits against their respective refs), create the {@link MetaDataUpdate} with a {@link
   * BatchRefUpdate}.
   *
   * <p>A ref update produced by this {@link BatchMetaDataUpdate} is only committed if there is no
   * associated {@link BatchRefUpdate}. As a result, the configured ref updated event is not fired
   * if there is an associated batch.
   *
   * @param update helper info about the update.
   * @throws IOException if the update failed.
   */
public BatchMetaDataUpdate openUpdate(final MetaDataUpdate update) throws IOException {
    final Repository db = update.getRepository();
    reader = db.newObjectReader();
    inserter = db.newObjectInserter();
    final RevWalk rw = new RevWalk(reader);
    final RevTree tree = revision != null ? rw.parseTree(revision) : null;
    newTree = readTree(tree);
    return new BatchMetaDataUpdate() {

        AnyObjectId src = revision;

        AnyObjectId srcTree = tree;

        @Override
        public void write(CommitBuilder commit) throws IOException {
            write(VersionedMetaData.this, commit);
        }

        private boolean doSave(VersionedMetaData config, CommitBuilder commit) throws IOException {
            DirCache nt = config.newTree;
            ObjectReader r = config.reader;
            ObjectInserter i = config.inserter;
            try {
                config.newTree = newTree;
                config.reader = reader;
                config.inserter = inserter;
                return config.onSave(commit);
            } catch (ConfigInvalidException e) {
                throw new IOException("Cannot update " + getRefName() + " in " + db.getDirectory() + ": " + e.getMessage(), e);
            } finally {
                config.newTree = nt;
                config.reader = r;
                config.inserter = i;
            }
        }

        @Override
        public void write(VersionedMetaData config, CommitBuilder commit) throws IOException {
            if (!doSave(config, commit)) {
                return;
            }
            ObjectId res = newTree.writeTree(inserter);
            if (res.equals(srcTree) && !update.allowEmpty() && (commit.getTreeId() == null)) {
                // If there are no changes to the content, don't create the commit.
                return;
            }
            // the tree for the updated DirCache.
            if (commit.getTreeId() == null) {
                commit.setTreeId(res);
            } else {
                // In this case, the caller populated the tree without using DirCache.
                res = commit.getTreeId();
            }
            if (src != null) {
                commit.addParentId(src);
            }
            if (update.insertChangeId()) {
                ObjectId id = ChangeIdUtil.computeChangeId(res, getRevision(), commit.getAuthor(), commit.getCommitter(), commit.getMessage());
                commit.setMessage(ChangeIdUtil.insertId(commit.getMessage(), id));
            }
            src = inserter.insert(commit);
            srcTree = res;
        }

        @Override
        public RevCommit createRef(String refName) throws IOException {
            if (Objects.equals(src, revision)) {
                return revision;
            }
            return updateRef(ObjectId.zeroId(), src, refName);
        }

        @Override
        public void removeRef(String refName) throws IOException {
            RefUpdate ru = db.updateRef(refName);
            ru.setForceUpdate(true);
            if (revision != null) {
                ru.setExpectedOldObjectId(revision);
            }
            RefUpdate.Result result = ru.delete();
            switch(result) {
                case FORCED:
                    update.fireGitRefUpdatedEvent(ru);
                    return;
                case LOCK_FAILURE:
                    throw new LockFailureException("Cannot delete " + ru.getName() + " in " + db.getDirectory() + ": " + ru.getResult());
                case FAST_FORWARD:
                case IO_FAILURE:
                case NEW:
                case NOT_ATTEMPTED:
                case NO_CHANGE:
                case REJECTED:
                case REJECTED_CURRENT_BRANCH:
                case RENAMED:
                default:
                    throw new IOException("Cannot delete " + ru.getName() + " in " + db.getDirectory() + ": " + ru.getResult());
            }
        }

        @Override
        public RevCommit commit() throws IOException {
            return commitAt(revision);
        }

        @Override
        public RevCommit commitAt(ObjectId expected) throws IOException {
            if (Objects.equals(src, expected)) {
                return revision;
            }
            return updateRef(MoreObjects.firstNonNull(expected, ObjectId.zeroId()), src, getRefName());
        }

        @Override
        public void close() {
            newTree = null;
            rw.close();
            if (inserter != null) {
                inserter.close();
                inserter = null;
            }
            if (reader != null) {
                reader.close();
                reader = null;
            }
        }

        private RevCommit updateRef(AnyObjectId oldId, AnyObjectId newId, String refName) throws IOException {
            BatchRefUpdate bru = update.getBatch();
            if (bru != null) {
                bru.addCommand(new ReceiveCommand(oldId.toObjectId(), newId.toObjectId(), refName));
                inserter.flush();
                revision = rw.parseCommit(newId);
                return revision;
            }
            RefUpdate ru = db.updateRef(refName);
            ru.setExpectedOldObjectId(oldId);
            ru.setNewObjectId(src);
            ru.setRefLogIdent(update.getCommitBuilder().getAuthor());
            String message = update.getCommitBuilder().getMessage();
            if (message == null) {
                message = "meta data update";
            }
            try (BufferedReader reader = new BufferedReader(new StringReader(message))) {
                // read the subject line and use it as reflog message
                ru.setRefLogMessage("commit: " + reader.readLine(), true);
            }
            inserter.flush();
            RefUpdate.Result result = ru.update();
            switch(result) {
                case NEW:
                case FAST_FORWARD:
                    revision = rw.parseCommit(ru.getNewObjectId());
                    update.fireGitRefUpdatedEvent(ru);
                    return revision;
                case LOCK_FAILURE:
                    throw new LockFailureException("Cannot update " + ru.getName() + " in " + db.getDirectory() + ": " + ru.getResult());
                case FORCED:
                case IO_FAILURE:
                case NOT_ATTEMPTED:
                case NO_CHANGE:
                case REJECTED:
                case REJECTED_CURRENT_BRANCH:
                case RENAMED:
                default:
                    throw new IOException("Cannot update " + ru.getName() + " in " + db.getDirectory() + ": " + ru.getResult());
            }
        }
    };
}

Example 28 with RevTree

use of org.eclipse.jgit.revwalk.RevTree in project gerrit by GerritCodeReview.

the class PatchListLoader method readPatchList.

public PatchList readPatchList(Repository repo, RevWalk rw, ObjectInserter ins) throws IOException, PatchListNotAvailableException {
    ObjectReader reader = rw.getObjectReader();
    checkArgument(reader.getCreatedFromInserter() == ins);
    RawTextComparator cmp = comparatorFor(key.getWhitespace());
    try (DiffFormatter df = new DiffFormatter(DisabledOutputStream.INSTANCE)) {
        RevCommit b = rw.parseCommit(key.getNewId());
        RevObject a = aFor(key, repo, rw, ins, b);
        if (a == null) {
            // TODO(sop) Remove this case.
            // This is an octopus merge commit which should be compared against the
            // auto-merge. However since we don't support computing the auto-merge
            // for octopus merge commits, we fall back to diffing against the first
            // parent, even though this wasn't what was requested.
            //
            ComparisonType comparisonType = ComparisonType.againstParent(1);
            PatchListEntry[] entries = new PatchListEntry[2];
            entries[0] = newCommitMessage(cmp, reader, null, b);
            entries[1] = newMergeList(cmp, reader, null, b, comparisonType);
            return new PatchList(a, b, true, comparisonType, entries);
        }
        ComparisonType comparisonType = getComparisonType(a, b);
        RevCommit aCommit = a instanceof RevCommit ? (RevCommit) a : null;
        RevTree aTree = rw.parseTree(a);
        RevTree bTree = b.getTree();
        df.setReader(reader, repo.getConfig());
        df.setDiffComparator(cmp);
        df.setDetectRenames(true);
        List<DiffEntry> diffEntries = df.scan(aTree, bTree);
        Set<String> paths = null;
        if (key.getOldId() != null && b.getParentCount() == 1) {
            PatchListKey newKey = PatchListKey.againstDefaultBase(key.getNewId(), key.getWhitespace());
            PatchListKey oldKey = PatchListKey.againstDefaultBase(key.getOldId(), key.getWhitespace());
            paths = Stream.concat(patchListCache.get(newKey, project).getPatches().stream(), patchListCache.get(oldKey, project).getPatches().stream()).map(PatchListEntry::getNewName).collect(toSet());
        }
        int cnt = diffEntries.size();
        List<PatchListEntry> entries = new ArrayList<>();
        entries.add(newCommitMessage(cmp, reader, comparisonType.isAgainstParentOrAutoMerge() ? null : aCommit, b));
        boolean isMerge = b.getParentCount() > 1;
        if (isMerge) {
            entries.add(newMergeList(cmp, reader, comparisonType.isAgainstParentOrAutoMerge() ? null : aCommit, b, comparisonType));
        }
        for (int i = 0; i < cnt; i++) {
            DiffEntry e = diffEntries.get(i);
            if (paths == null || paths.contains(e.getNewPath()) || paths.contains(e.getOldPath())) {
                FileHeader fh = toFileHeader(key, df, e);
                long oldSize = getFileSize(reader, e.getOldMode(), e.getOldPath(), aTree);
                long newSize = getFileSize(reader, e.getNewMode(), e.getNewPath(), bTree);
                entries.add(newEntry(aTree, fh, newSize, newSize - oldSize));
            }
        }
        return new PatchList(a, b, isMerge, comparisonType, entries.toArray(new PatchListEntry[entries.size()]));
    }
}

Example 29 with RevTree

use of org.eclipse.jgit.revwalk.RevTree in project gitiles by GerritCodeReview.

the class RepositoryIndexServlet method renderReadme.

private static Map<String, Object> renderReadme(HttpServletRequest req, RevWalk walk, GitilesView view, Config cfg, RevObject head) throws IOException {
    RevTree rootTree;
    try {
        rootTree = walk.parseTree(head);
    } catch (IncorrectObjectTypeException notTreeish) {
        return null;
    }
    ReadmeHelper readme = new ReadmeHelper(walk.getObjectReader(), GitilesView.path().copyFrom(view).setRevision(Revision.HEAD).setPathPart("/").build(), MarkdownConfig.get(cfg), rootTree, req.getRequestURI());
    readme.scanTree(rootTree);
    if (readme.isPresent()) {
        SanitizedContent html = readme.render();
        if (html != null) {
            return ImmutableMap.<String, Object>of("readmeHtml", html);
        }
    }
    return null;
}

Example 30 with RevTree

use of org.eclipse.jgit.revwalk.RevTree in project indy by Commonjava.

the class GitManager method verifyChangesExist.

private boolean verifyChangesExist(final Collection<String> paths) throws GitSubsystemException {
    return lockAnd(me -> {
        try {
            final DiffFormatter formatter = new DiffFormatter(System.out);
            formatter.setRepository(repo);
            final ObjectId oid = repo.resolve(Constants.HEAD);
            if (oid == null) {
                return true;
            }
            final RevWalk walk = new RevWalk(repo);
            final RevCommit commit = walk.parseCommit(oid);
            final RevTree treeWalk = walk.parseTree(commit);
            final List<TreeFilter> filters = new ArrayList<>();
            for (final String path : paths) {
                filters.add(PathFilter.create(path));
            }
            filters.add(TreeFilter.ANY_DIFF);
            walk.setTreeFilter(AndTreeFilter.create(filters));
            final CanonicalTreeParser tree = new CanonicalTreeParser();
            final ObjectReader oldReader = repo.newObjectReader();
            try {
                tree.reset(oldReader, treeWalk.getId());
            } finally {
                oldReader.release();
            }
            walk.dispose();
            final FileTreeIterator files = new FileTreeIterator(repo);
            final List<DiffEntry> entries = formatter.scan(tree, files);
            return entries != null && !entries.isEmpty();
        } catch (final IOException e) {
            throw new GitSubsystemException("Failed to scan for actual changes among: %s. Reason: %s", e, paths, e.getMessage());
        }
    });
}