Example usage for org.eclipse.jgit.internal.storage.pack PackWriter writePack

Introduction

In this page you can find the example usage for org.eclipse.jgit.internal.storage.pack PackWriter writePack.

Prototype

public void writePack(ProgressMonitor compressMonitor, ProgressMonitor writeMonitor, OutputStream packStream)
        throws IOException 

Source Link

Document

Write the prepared pack to the supplied stream.

Usage

From source file:com.surevine.gateway.scm.git.jgit.BundleWriter.java

License:Eclipse Distribution License

/**
 * Generate and write the bundle to the output stream.
 * <p>/*from   w w  w  . j  a  v a 2 s . c  om*/
 * This method can only be called once per BundleWriter instance.
 *
 * @param monitor
 *            progress monitor to report bundle writing status to.
 * @param os
 *            the stream the bundle is written to. The stream should be
 *            buffered by the caller. The caller is responsible for closing
 *            the stream.
 * @throws IOException
 *             an error occurred reading a local object's data to include in
 *             the bundle, or writing compressed object data to the output
 *             stream.
 */
public void writeBundle(ProgressMonitor monitor, OutputStream os) throws IOException {
    PackConfig pc = packConfig;
    if (pc == null)
        pc = new PackConfig(db);
    PackWriter packWriter = new PackWriter(pc, db.newObjectReader());
    try {
        final HashSet<ObjectId> inc = new HashSet<ObjectId>();
        final HashSet<ObjectId> exc = new HashSet<ObjectId>();
        inc.addAll(include.values());
        for (final RevCommit r : assume)
            exc.add(r.getId());
        packWriter.setIndexDisabled(true);
        packWriter.setDeltaBaseAsOffset(true);
        packWriter.setThin(exc.size() > 0);
        packWriter.setReuseValidatingObjects(false);
        if (exc.size() == 0)
            packWriter.setTagTargets(tagTargets);
        packWriter.preparePack(monitor, inc, exc);

        final Writer w = new OutputStreamWriter(os, Constants.CHARSET);
        w.write(TransportBundle.V2_BUNDLE_SIGNATURE);
        w.write('\n');

        final char[] tmp = new char[Constants.OBJECT_ID_STRING_LENGTH];
        for (final RevCommit a : assume) {
            w.write('-');
            a.copyTo(tmp, w);
            if (a.getRawBuffer() != null) {
                w.write(' ');
                w.write(a.getShortMessage());
            }
            w.write('\n');
        }
        for (final Map.Entry<String, ObjectId> e : include.entrySet()) {
            e.getValue().copyTo(tmp, w);
            w.write(' ');
            w.write(e.getKey());
            w.write('\n');
        }

        w.write('\n');
        w.flush();
        packWriter.writePack(monitor, monitor, os);
    } finally {
        packWriter.release();
    }
}

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