Example usage for org.eclipse.jgit.lib Constants OBJ

Introduction

In this page you can find the example usage for org.eclipse.jgit.lib Constants OBJ_BLOB.

Prototype

int OBJ_BLOB

To view the source code for org.eclipse.jgit.lib Constants OBJ_BLOB.

Click Source Link

Document

In-pack object type: blob.

Usage

From source file:com.google.gerrit.server.patch.AutoMerger.java

License:Apache License

/**
 * Perform an auto-merge of the parents of the given merge commit.
 *
 * @return auto-merge commit or {@code null} if an auto-merge commit
 *     couldn't be created. Headers of the returned RevCommit are parsed.
 *///  w  ww .  ja v  a 2 s.c  o m
public RevCommit merge(Repository repo, RevWalk rw, final ObjectInserter ins, RevCommit merge,
        ThreeWayMergeStrategy mergeStrategy) throws IOException {
    rw.parseHeaders(merge);
    String hash = merge.name();
    String refName = RefNames.REFS_CACHE_AUTOMERGE + hash.substring(0, 2) + "/" + hash.substring(2);
    Ref ref = repo.getRefDatabase().exactRef(refName);
    if (ref != null && ref.getObjectId() != null) {
        RevObject obj = rw.parseAny(ref.getObjectId());
        if (obj instanceof RevCommit) {
            return (RevCommit) obj;
        }
        return commit(repo, rw, ins, refName, obj, merge);
    }

    ResolveMerger m = (ResolveMerger) mergeStrategy.newMerger(repo, true);
    DirCache dc = DirCache.newInCore();
    m.setDirCache(dc);
    m.setObjectInserter(new ObjectInserter.Filter() {
        @Override
        protected ObjectInserter delegate() {
            return ins;
        }

        @Override
        public void flush() {
        }

        @Override
        public void close() {
        }
    });

    boolean couldMerge;
    try {
        couldMerge = m.merge(merge.getParents());
    } catch (IOException e) {
        // It is not safe to continue further down in this method as throwing
        // an exception most likely means that the merge tree was not created
        // and m.getMergeResults() is empty. This would mean that all paths are
        // unmerged and Gerrit UI would show all paths in the patch list.
        log.warn("Error attempting automerge " + refName, e);
        return null;
    }

    ObjectId treeId;
    if (couldMerge) {
        treeId = m.getResultTreeId();

    } else {
        RevCommit ours = merge.getParent(0);
        RevCommit theirs = merge.getParent(1);
        rw.parseBody(ours);
        rw.parseBody(theirs);
        String oursMsg = ours.getShortMessage();
        String theirsMsg = theirs.getShortMessage();

        String oursName = String.format("HEAD   (%s %s)", ours.abbreviate(6).name(),
                oursMsg.substring(0, Math.min(oursMsg.length(), 60)));
        String theirsName = String.format("BRANCH (%s %s)", theirs.abbreviate(6).name(),
                theirsMsg.substring(0, Math.min(theirsMsg.length(), 60)));

        MergeFormatter fmt = new MergeFormatter();
        Map<String, MergeResult<? extends Sequence>> r = m.getMergeResults();
        Map<String, ObjectId> resolved = new HashMap<>();
        for (Map.Entry<String, MergeResult<? extends Sequence>> entry : r.entrySet()) {
            MergeResult<? extends Sequence> p = entry.getValue();
            try (TemporaryBuffer buf = new TemporaryBuffer.LocalFile(null, 10 * 1024 * 1024)) {
                fmt.formatMerge(buf, p, "BASE", oursName, theirsName, UTF_8.name());
                buf.close();

                try (InputStream in = buf.openInputStream()) {
                    resolved.put(entry.getKey(), ins.insert(Constants.OBJ_BLOB, buf.length(), in));
                }
            }
        }

        DirCacheBuilder builder = dc.builder();
        int cnt = dc.getEntryCount();
        for (int i = 0; i < cnt;) {
            DirCacheEntry entry = dc.getEntry(i);
            if (entry.getStage() == 0) {
                builder.add(entry);
                i++;
                continue;
            }

            int next = dc.nextEntry(i);
            String path = entry.getPathString();
            DirCacheEntry res = new DirCacheEntry(path);
            if (resolved.containsKey(path)) {
                // For a file with content merge conflict that we produced a result
                // above on, collapse the file down to a single stage 0 with just
                // the blob content, and a randomly selected mode (the lowest stage,
                // which should be the merge base, or ours).
                res.setFileMode(entry.getFileMode());
                res.setObjectId(resolved.get(path));

            } else if (next == i + 1) {
                // If there is exactly one stage present, shouldn't be a conflict...
                res.setFileMode(entry.getFileMode());
                res.setObjectId(entry.getObjectId());

            } else if (next == i + 2) {
                // Two stages suggests a delete/modify conflict. Pick the higher
                // stage as the automatic result.
                entry = dc.getEntry(i + 1);
                res.setFileMode(entry.getFileMode());
                res.setObjectId(entry.getObjectId());

            } else {
                // 3 stage conflict, no resolve above
                // Punt on the 3-stage conflict and show the base, for now.
                res.setFileMode(entry.getFileMode());
                res.setObjectId(entry.getObjectId());
            }
            builder.add(res);
            i = next;
        }
        builder.finish();
        treeId = dc.writeTree(ins);
    }
    ins.flush();

    return commit(repo, rw, ins, refName, treeId, merge);
}

From source file:com.google.gerrit.server.patch.PatchFile.java

License:Apache License

private Text load(final ObjectId tree, final String path)
        throws MissingObjectException, IncorrectObjectTypeException, CorruptObjectException, IOException {
    if (path == null) {
        return Text.EMPTY;
    }/*ww  w . j  a v  a 2  s  .c  o m*/
    final TreeWalk tw = TreeWalk.forPath(repo, path, tree);
    if (tw == null) {
        return Text.EMPTY;
    }
    if (tw.getFileMode(0).getObjectType() != Constants.OBJ_BLOB) {
        return Text.EMPTY;
    }
    return new Text(repo.open(tw.getObjectId(0), Constants.OBJ_BLOB));
}

From source file:com.google.gerrit.server.patch.PatchListLoader.java

License:Apache License

public static RevTree automerge(Repository repo, RevWalk rw, RevCommit b, ThreeWayMergeStrategy mergeStrategy,
        boolean save) throws IOException {
    String hash = b.name();/*from w ww . j a  va 2  s .  c  om*/
    String refName = RefNames.REFS_CACHE_AUTOMERGE + hash.substring(0, 2) + "/" + hash.substring(2);
    Ref ref = repo.getRefDatabase().exactRef(refName);
    if (ref != null && ref.getObjectId() != null) {
        return rw.parseTree(ref.getObjectId());
    }

    ResolveMerger m = (ResolveMerger) mergeStrategy.newMerger(repo, true);
    try (ObjectInserter ins = repo.newObjectInserter()) {
        DirCache dc = DirCache.newInCore();
        m.setDirCache(dc);
        m.setObjectInserter(new ObjectInserter.Filter() {
            @Override
            protected ObjectInserter delegate() {
                return ins;
            }

            @Override
            public void flush() {
            }

            @Override
            public void close() {
            }
        });

        boolean couldMerge;
        try {
            couldMerge = m.merge(b.getParents());
        } catch (IOException e) {
            // It is not safe to continue further down in this method as throwing
            // an exception most likely means that the merge tree was not created
            // and m.getMergeResults() is empty. This would mean that all paths are
            // unmerged and Gerrit UI would show all paths in the patch list.
            log.warn("Error attempting automerge " + refName, e);
            return null;
        }

        ObjectId treeId;
        if (couldMerge) {
            treeId = m.getResultTreeId();

        } else {
            RevCommit ours = b.getParent(0);
            RevCommit theirs = b.getParent(1);
            rw.parseBody(ours);
            rw.parseBody(theirs);
            String oursMsg = ours.getShortMessage();
            String theirsMsg = theirs.getShortMessage();

            String oursName = String.format("HEAD   (%s %s)", ours.abbreviate(6).name(),
                    oursMsg.substring(0, Math.min(oursMsg.length(), 60)));
            String theirsName = String.format("BRANCH (%s %s)", theirs.abbreviate(6).name(),
                    theirsMsg.substring(0, Math.min(theirsMsg.length(), 60)));

            MergeFormatter fmt = new MergeFormatter();
            Map<String, MergeResult<? extends Sequence>> r = m.getMergeResults();
            Map<String, ObjectId> resolved = new HashMap<>();
            for (Map.Entry<String, MergeResult<? extends Sequence>> entry : r.entrySet()) {
                MergeResult<? extends Sequence> p = entry.getValue();
                try (TemporaryBuffer buf = new TemporaryBuffer.LocalFile(null, 10 * 1024 * 1024)) {
                    fmt.formatMerge(buf, p, "BASE", oursName, theirsName, "UTF-8");
                    buf.close();

                    try (InputStream in = buf.openInputStream()) {
                        resolved.put(entry.getKey(), ins.insert(Constants.OBJ_BLOB, buf.length(), in));
                    }
                }
            }

            DirCacheBuilder builder = dc.builder();
            int cnt = dc.getEntryCount();
            for (int i = 0; i < cnt;) {
                DirCacheEntry entry = dc.getEntry(i);
                if (entry.getStage() == 0) {
                    builder.add(entry);
                    i++;
                    continue;
                }

                int next = dc.nextEntry(i);
                String path = entry.getPathString();
                DirCacheEntry res = new DirCacheEntry(path);
                if (resolved.containsKey(path)) {
                    // For a file with content merge conflict that we produced a result
                    // above on, collapse the file down to a single stage 0 with just
                    // the blob content, and a randomly selected mode (the lowest stage,
                    // which should be the merge base, or ours).
                    res.setFileMode(entry.getFileMode());
                    res.setObjectId(resolved.get(path));

                } else if (next == i + 1) {
                    // If there is exactly one stage present, shouldn't be a conflict...
                    res.setFileMode(entry.getFileMode());
                    res.setObjectId(entry.getObjectId());

                } else if (next == i + 2) {
                    // Two stages suggests a delete/modify conflict. Pick the higher
                    // stage as the automatic result.
                    entry = dc.getEntry(i + 1);
                    res.setFileMode(entry.getFileMode());
                    res.setObjectId(entry.getObjectId());

                } else { // 3 stage conflict, no resolve above
                    // Punt on the 3-stage conflict and show the base, for now.
                    res.setFileMode(entry.getFileMode());
                    res.setObjectId(entry.getObjectId());
                }
                builder.add(res);
                i = next;
            }
            builder.finish();
            treeId = dc.writeTree(ins);
        }
        ins.flush();

        if (save) {
            RefUpdate update = repo.updateRef(refName);
            update.setNewObjectId(treeId);
            update.disableRefLog();
            update.forceUpdate();
        }

        return rw.lookupTree(treeId);
    }
}

From source file:com.google.gerrit.server.StarredChangesUtil.java

License:Apache License

private static TreeSet<String> readLabels(Repository repo, ObjectId id) throws IOException {
    if (ObjectId.zeroId().equals(id)) {
        return new TreeSet<>();
    }//from   w w w . ja v  a  2 s . c o m

    try (ObjectReader reader = repo.newObjectReader()) {
        ObjectLoader obj = reader.open(id, Constants.OBJ_BLOB);
        TreeSet<String> labels = new TreeSet<>();
        Iterables.addAll(labels, Splitter.on(CharMatcher.whitespace()).omitEmptyStrings()
                .split(new String(obj.getCachedBytes(Integer.MAX_VALUE), UTF_8)));
        return labels;
    }
}

From source file:com.google.gerrit.server.StarredChangesUtil.java

License:Apache License

public static ObjectId writeLabels(Repository repo, SortedSet<String> labels) throws IOException {
    SortedSet<String> invalidLabels = validateLabels(labels);
    if (!invalidLabels.isEmpty()) {
        throw new IllegalArgumentException(
                String.format("Invalid star labels: %s", Joiner.on(", ").join(labels)));
    }//www  .  java  2 s. c  o  m

    try (ObjectInserter oi = repo.newObjectInserter()) {
        ObjectId id = oi.insert(Constants.OBJ_BLOB, Joiner.on("\n").join(labels).getBytes(UTF_8));
        oi.flush();
        return id;
    }
}

From source file:com.google.gerrit.server.tools.hooks.CommitMsgHookTest.java

License:Apache License

private DirCacheEntry file(final String name) throws IOException {
    try (ObjectInserter oi = repository.newObjectInserter()) {
        final DirCacheEntry e = new DirCacheEntry(name);
        e.setFileMode(FileMode.REGULAR_FILE);
        e.setObjectId(oi.insert(Constants.OBJ_BLOB, Constants.encode(name)));
        oi.flush();/*from   w w  w  .j av  a2  s  . c o m*/
        return e;
    }
}

From source file:com.google.gitiles.BlobSoyData.java

License:Open Source License

public Map<String, Object> toSoyData(String path, ObjectId blobId) throws MissingObjectException, IOException {
    Map<String, Object> data = Maps.newHashMapWithExpectedSize(4);
    data.put("sha", ObjectId.toString(blobId));

    ObjectLoader loader = walk.getObjectReader().open(blobId, Constants.OBJ_BLOB);
    String content;/*  w  w  w. j a v  a 2  s .  com*/
    try {
        byte[] raw = loader.getCachedBytes(MAX_FILE_SIZE);
        content = !RawText.isBinary(raw) ? RawParseUtils.decode(raw) : null;
    } catch (LargeObjectException.OutOfMemory e) {
        throw e;
    } catch (LargeObjectException e) {
        content = null;
    }

    data.put("data", content);
    if (content != null) {
        data.put("lang", guessPrettifyLang(path, content));
    } else if (content == null) {
        data.put("size", Long.toString(loader.getSize()));
    }
    if (path != null && view.getRevision().getPeeledType() == OBJ_COMMIT) {
        data.put("logUrl", GitilesView.log().copyFrom(view).toUrl());
    }
    return data;
}

From source file:com.google.gitiles.doc.ImageLoader.java

License:Open Source License

private String readAndBase64Encode(String path) {
    String type = getMimeType(path);
    if (type == null) {
        return FilterImageDataUri.INSTANCE.getInnocuousOutput();
    }/*ww  w. ja v  a2 s  . co m*/

    try {
        TreeWalk tw = TreeWalk.forPath(reader, path, root);
        if (tw == null || tw.getFileMode(0) != FileMode.REGULAR_FILE) {
            return FilterImageDataUri.INSTANCE.getInnocuousOutput();
        }

        ObjectId id = tw.getObjectId(0);
        byte[] raw = reader.open(id, Constants.OBJ_BLOB).getCachedBytes(imageLimit);
        if (raw.length > imageLimit) {
            return FilterImageDataUri.INSTANCE.getInnocuousOutput();
        }

        return "data:" + type + ";base64," + BaseEncoding.base64().encode(raw);
    } catch (LargeObjectException.ExceedsLimit e) {
        return FilterImageDataUri.INSTANCE.getInnocuousOutput();
    } catch (IOException e) {
        log.error(String.format("cannot read repo %s image %s from %s", view.getRepositoryName(), path,
                root.name()), e);
        return FilterImageDataUri.INSTANCE.getInnocuousOutput();
    }
}

From source file:com.google.gitiles.ReadmeHelper.java

License:Open Source License

SanitizedContent render() {
    try {/*from  w  w  w . j a  va2 s  .  c om*/
        int inputLimit = cfg.getInt("markdown", "inputLimit", 5 << 20);
        byte[] raw = reader.open(readmeId, Constants.OBJ_BLOB).getCachedBytes(inputLimit);
        String md = RawParseUtils.decode(raw);
        RootNode root = GitilesMarkdown.parseFile(view, readmePath, md);
        if (root == null) {
            return null;
        }

        int imageLimit = cfg.getInt("markdown", "imageLimit", 256 << 10);
        ImageLoader img = null;
        if (imageLimit > 0) {
            img = new ImageLoader(reader, view, rootTree, readmePath, imageLimit);
        }

        return new MarkdownToHtml(view, cfg).setImageLoader(img).setReadme(true).toSoyHtml(root);
    } catch (LargeObjectException | IOException e) {
        log.error(String.format("error rendering %s/%s", view.getRepositoryName(), readmePath), e);
        return null;
    }
}

From source file:com.madgag.agit.BlobViewFragment.java

License:Open Source License

@Override
public Loader<BlobView> onCreateLoader(int id, Bundle b) {
    return new AsyncLoader<BlobView>(getActivity()) {
        public BlobView loadInBackground() {
            Bundle args = getArguments();
            try {
                Repository repo = new FileRepository(args.getString(GITDIR));
                ObjectId revision = repo.resolve(args.getString(UNTIL_REVS));
                RevWalk revWalk = new RevWalk(repo);
                RevCommit commit = revWalk.parseCommit(revision);
                TreeWalk treeWalk = TreeWalk.forPath(repo, args.getString(PATH), commit.getTree());
                ObjectId blobId = treeWalk.getObjectId(0);

                ObjectLoader objectLoader = revWalk.getObjectReader().open(blobId, Constants.OBJ_BLOB);
                ObjectStream binaryTestStream = objectLoader.openStream();
                boolean blobIsBinary = RawText.isBinary(binaryTestStream);
                binaryTestStream.close();
                Log.d(TAG, "blobIsBinary=" + blobIsBinary);
                return blobIsBinary ? new BinaryBlobView(objectLoader, treeWalk.getNameString())
                        : new TextBlobView(objectLoader);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }/*from  ww  w.  j  a  v  a 2s . co m*/
        }

    };
}

Example usage for org.eclipse.jgit.lib Constants OBJ_BLOB

Introduction

Prototype

Document

Usage