Add tbz2 archive format

Change-Id: Idb7ff75877a0cfe23f47e10e3f6f93386f5bb145

org.eclipse.jgit.archive/META-INF/MANIFEST.MF

@@ -9,6 +9,7 @@ Bundle-RequiredExecutionEnvironment: J2SE-1.5
 Import-Package: org.apache.commons.compress.archivers;version="[1.3,2.0)",
  org.apache.commons.compress.archivers.tar;version="[1.3,2.0)",
  org.apache.commons.compress.archivers.zip;version="[1.3,2.0)",
+ org.apache.commons.compress.compressors.bzip2;version="[1.3,2.0)",
  org.apache.commons.compress.compressors.gzip;version="[1.3,2.0)",
  org.apache.commons.compress.compressors.xz;version="[1.3,2.0)",
  org.eclipse.jgit.api;version="[3.0.0,3.1.0)",

org.eclipse.jgit.archive/src/org/eclipse/jgit/archive/ArchiveFormats.java

@@ -72,6 +72,7 @@ public class ArchiveFormats {
 	public static void registerAll() {
 		register("tar", new TarFormat());
 		register("tgz", new TgzFormat());
+		register("tbz2", new Tbz2Format());
 		register("txz", new TxzFormat());
 		register("zip", new ZipFormat());
 	}

org.eclipse.jgit.archive/src/org/eclipse/jgit/archive/Tbz2Format.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2013 Google Inc.
+ * and other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Distribution License v1.0 which
+ * accompanies this distribution, is reproduced below, and is
+ * available at http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials provided
+ *   with the distribution.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. nor the
+ *   names of its contributors may be used to endorse or promote
+ *   products derived from this software without specific prior
+ *   written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.eclipse.jgit.archive;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.apache.commons.compress.archivers.ArchiveOutputStream;
+import org.apache.commons.compress.compressors.bzip2.BZip2CompressorOutputStream;
+import org.eclipse.jgit.api.ArchiveCommand;
+import org.eclipse.jgit.lib.FileMode;
+import org.eclipse.jgit.lib.ObjectLoader;
+
+/**
+ * bzip2-compressed tarball (tar.bz2) format.
+ */
+public class Tbz2Format implements ArchiveCommand.Format<ArchiveOutputStream> {
+	private final ArchiveCommand.Format<ArchiveOutputStream> tarFormat = new TarFormat();
+
+	public ArchiveOutputStream createArchiveOutputStream(OutputStream s)
+			throws IOException {
+		BZip2CompressorOutputStream out = new BZip2CompressorOutputStream(s);
+		return tarFormat.createArchiveOutputStream(out);
+	}
+
+	public void putEntry(ArchiveOutputStream out,
+			String path, FileMode mode, ObjectLoader loader)
+			throws IOException {
+		tarFormat.putEntry(out, path, mode, loader);
+	}
+}