Examples with ObjectReader org.eclipse.jgit.lib.ObjectReader used on opensource projects

Example 1 with ObjectReader

use of org.eclipse.jgit.lib.ObjectReader in project che by eclipse.

the class JGitDiffPage method commitToWorkingTree.

/**
     * Show changes between specified revision and working tree.
     *
     * @param commitId
     *            id of commit
     * @param formatter
     *            diff formatter
     * @return list of diff entries
     * @throws IOException
     *             if any i/o errors occurs
     */
private List<DiffEntry> commitToWorkingTree(String commitId, DiffFormatter formatter) throws IOException {
    ObjectId commitA = repository.resolve(commitId);
    if (commitA == null) {
        File heads = new File(repository.getWorkTree().getPath() + "/.git/refs/heads");
        if (heads.exists() && heads.list().length == 0) {
            return Collections.emptyList();
        }
        throw new IllegalArgumentException("Invalid commit id " + commitId);
    }
    RevTree treeA;
    try (RevWalk revWalkA = new RevWalk(repository)) {
        treeA = revWalkA.parseTree(commitA);
    }
    List<DiffEntry> diff;
    try (ObjectReader reader = repository.newObjectReader()) {
        CanonicalTreeParser iterA = new CanonicalTreeParser();
        iterA.reset(reader, treeA);
        FileTreeIterator iterB = new FileTreeIterator(repository);
        // Seems bug in DiffFormatter when work with working. Disable detect
        // renames by formatter and do it later.
        formatter.setDetectRenames(false);
        diff = formatter.scan(iterA, iterB);
        if (!params.isNoRenames()) {
            // Detect renames.
            RenameDetector renameDetector = createRenameDetector();
            ContentSource.Pair sourcePairReader = new ContentSource.Pair(ContentSource.create(reader), ContentSource.create(iterB));
            renameDetector.addAll(diff);
            diff = renameDetector.compute(sourcePairReader, NullProgressMonitor.INSTANCE);
        }
    }
    return diff;
}

Example 2 with ObjectReader

use of org.eclipse.jgit.lib.ObjectReader in project che by eclipse.

the class JGitDiffPage method emptyToCommit.

/**
     * Show changes between specified revision and empty tree.
     *
     * @param commitId
     *            id of commit
     * @param formatter
     *            diff formatter
     * @return list of diff entries
     * @throws IOException
     *             if any i/o errors occurs
     */
private List<DiffEntry> emptyToCommit(String commitId, DiffFormatter formatter) throws IOException {
    ObjectId commit = repository.resolve(commitId);
    checkArgument(commit != null, "Invalid commit id " + commitId);
    RevTree tree;
    try (RevWalk revWalkA = new RevWalk(repository)) {
        tree = revWalkA.parseTree(commit);
    }
    List<DiffEntry> diff;
    try (ObjectReader reader = repository.newObjectReader()) {
        CanonicalTreeParser iterator = new CanonicalTreeParser();
        iterator.reset(reader, tree);
        diff = formatter.scan(new EmptyTreeIterator(), iterator);
    }
    return diff;
}

Example 3 with ObjectReader

use of org.eclipse.jgit.lib.ObjectReader in project gerrit by GerritCodeReview.

the class Revert method revert.

private Change.Id revert(BatchUpdate.Factory updateFactory, ChangeControl ctl, String message) throws OrmException, IOException, RestApiException, UpdateException {
    Change.Id changeIdToRevert = ctl.getChange().getId();
    PatchSet.Id patchSetId = ctl.getChange().currentPatchSetId();
    PatchSet patch = psUtil.get(db.get(), ctl.getNotes(), patchSetId);
    if (patch == null) {
        throw new ResourceNotFoundException(changeIdToRevert.toString());
    }
    Project.NameKey project = ctl.getProject().getNameKey();
    CurrentUser user = ctl.getUser();
    try (Repository git = repoManager.openRepository(project);
        ObjectInserter oi = git.newObjectInserter();
        ObjectReader reader = oi.newReader();
        RevWalk revWalk = new RevWalk(reader)) {
        RevCommit commitToRevert = revWalk.parseCommit(ObjectId.fromString(patch.getRevision().get()));
        if (commitToRevert.getParentCount() == 0) {
            throw new ResourceConflictException("Cannot revert initial commit");
        }
        Timestamp now = TimeUtil.nowTs();
        PersonIdent committerIdent = new PersonIdent(serverIdent, now);
        PersonIdent authorIdent = user.asIdentifiedUser().newCommitterIdent(now, committerIdent.getTimeZone());
        RevCommit parentToCommitToRevert = commitToRevert.getParent(0);
        revWalk.parseHeaders(parentToCommitToRevert);
        CommitBuilder revertCommitBuilder = new CommitBuilder();
        revertCommitBuilder.addParentId(commitToRevert);
        revertCommitBuilder.setTreeId(parentToCommitToRevert.getTree());
        revertCommitBuilder.setAuthor(authorIdent);
        revertCommitBuilder.setCommitter(authorIdent);
        Change changeToRevert = ctl.getChange();
        if (message == null) {
            message = MessageFormat.format(ChangeMessages.get().revertChangeDefaultMessage, changeToRevert.getSubject(), patch.getRevision().get());
        }
        ObjectId computedChangeId = ChangeIdUtil.computeChangeId(parentToCommitToRevert.getTree(), commitToRevert, authorIdent, committerIdent, message);
        revertCommitBuilder.setMessage(ChangeIdUtil.insertId(message, computedChangeId, true));
        Change.Id changeId = new Change.Id(seq.nextChangeId());
        ObjectId id = oi.insert(revertCommitBuilder);
        RevCommit revertCommit = revWalk.parseCommit(id);
        ChangeInserter ins = changeInserterFactory.create(changeId, revertCommit, ctl.getChange().getDest().get()).setTopic(changeToRevert.getTopic());
        ins.setMessage("Uploaded patch set 1.");
        Set<Account.Id> reviewers = new HashSet<>();
        reviewers.add(changeToRevert.getOwner());
        reviewers.addAll(approvalsUtil.getReviewers(db.get(), ctl.getNotes()).all());
        reviewers.remove(user.getAccountId());
        ins.setReviewers(reviewers);
        try (BatchUpdate bu = updateFactory.create(db.get(), project, user, now)) {
            bu.setRepository(git, revWalk, oi);
            bu.insertChange(ins);
            bu.addOp(changeId, new NotifyOp(ctl.getChange(), ins));
            bu.addOp(changeToRevert.getId(), new PostRevertedMessageOp(computedChangeId));
            bu.execute();
        }
        return changeId;
    } catch (RepositoryNotFoundException e) {
        throw new ResourceNotFoundException(changeIdToRevert.toString(), e);
    }
}

Example 4 with ObjectReader

use of org.eclipse.jgit.lib.ObjectReader in project gerrit by GerritCodeReview.

the class UnfusedNoteDbBatchUpdate method executeChangeOps.

private Map<Change.Id, ChangeResult> executeChangeOps(boolean dryrun) throws Exception {
    logDebug("Executing change ops");
    Map<Change.Id, ChangeResult> result = Maps.newLinkedHashMapWithExpectedSize(ops.keySet().size());
    initRepository();
    Repository repo = repoView.getRepository();
    // update as in executeUpdateRepo.
    try (ObjectInserter ins = repo.newObjectInserter();
        ObjectReader reader = ins.newReader();
        RevWalk rw = new RevWalk(reader);
        NoteDbUpdateManager updateManager = updateManagerFactory.create(project).setChangeRepo(repo, rw, ins, new ChainedReceiveCommands(repo))) {
        if (user.isIdentifiedUser()) {
            updateManager.setRefLogIdent(user.asIdentifiedUser().newRefLogIdent(when, tz));
        }
        for (Map.Entry<Change.Id, Collection<BatchUpdateOp>> e : ops.asMap().entrySet()) {
            Change.Id id = e.getKey();
            ChangeContextImpl ctx = newChangeContext(id);
            boolean dirty = false;
            logDebug("Applying {} ops for change {}", e.getValue().size(), id);
            for (BatchUpdateOp op : e.getValue()) {
                dirty |= op.updateChange(ctx);
            }
            if (!dirty) {
                logDebug("No ops reported dirty, short-circuiting");
                result.put(id, ChangeResult.SKIPPED);
                continue;
            }
            for (ChangeUpdate u : ctx.updates.values()) {
                updateManager.add(u);
            }
            if (ctx.deleted) {
                logDebug("Change {} was deleted", id);
                updateManager.deleteChange(id);
                result.put(id, ChangeResult.DELETED);
            } else {
                result.put(id, ChangeResult.UPSERTED);
            }
        }
        if (!dryrun) {
            logDebug("Executing NoteDb updates");
            updateManager.execute();
        }
    }
    return result;
}

Example 5 with ObjectReader

use of org.eclipse.jgit.lib.ObjectReader in project gerrit by GerritCodeReview.

the class AutoMerger method commit.

private RevCommit commit(Repository repo, RevWalk rw, @Nullable InMemoryInserter tmpIns, ObjectInserter ins, String refName, ObjectId tree, RevCommit merge) throws IOException {
    rw.parseHeaders(merge);
    // For maximum stability, choose a single ident using the committer time of
    // the input commit, using the server name and timezone.
    PersonIdent ident = new PersonIdent(gerritIdent, merge.getCommitterIdent().getWhen(), gerritIdent.getTimeZone());
    CommitBuilder cb = new CommitBuilder();
    cb.setAuthor(ident);
    cb.setCommitter(ident);
    cb.setTreeId(tree);
    cb.setMessage("Auto-merge of " + merge.name() + '\n');
    for (RevCommit p : merge.getParents()) {
        cb.addParentId(p);
    }
    if (!save) {
        checkArgument(tmpIns != null);
        try (ObjectReader tmpReader = tmpIns.newReader();
            RevWalk tmpRw = new RevWalk(tmpReader)) {
            return tmpRw.parseCommit(tmpIns.insert(cb));
        }
    }
    checkArgument(tmpIns == null);
    checkArgument(!(ins instanceof InMemoryInserter));
    ObjectId commitId = ins.insert(cb);
    ins.flush();
    RefUpdate ru = repo.updateRef(refName);
    ru.setNewObjectId(commitId);
    ru.disableRefLog();
    ru.forceUpdate();
    return rw.parseCommit(commitId);
}