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Command line client tools built on top of JGit.
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/*
 * Copyright (C) 2012 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.pgm;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.eclipse.jgit.api.ArchiveCommand;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.archive.ArchiveFormats;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.pgm.TextBuiltin;
import org.eclipse.jgit.pgm.internal.CLIText;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.Option;

@Command(common = true, usage = "usage_archive")
class Archive extends TextBuiltin {
	static {
		ArchiveFormats.registerAll();
	}

	@Argument(index = 0, metaVar = "metaVar_treeish")
	private ObjectId tree;

	@Option(name = "--format", metaVar = "metaVar_archiveFormat", usage = "usage_archiveFormat")
	private String format;

	@Option(name = "--output", aliases = { "-o" }, metaVar = "metaVar_file", usage = "usage_archiveOutput")
	private String output;

	@Override
	protected void run() throws Exception {
		if (tree == null)
			throw die(CLIText.get().treeIsRequired);

		OutputStream stream = null;
		try {
			if (output != null)
				stream = new FileOutputStream(output);
			else
				stream = outs;

			try {
				ArchiveCommand cmd = new Git(db).archive()
					.setTree(tree)
					.setFormat(format)
					.setOutputStream(stream);
				if (output != null)
					cmd.setFilename(output);
				cmd.call();
		} catch (GitAPIException e) {
			throw die(e.getMessage());
		}
		} catch (FileNotFoundException e) {
			throw die(e.getMessage());
		} finally {
			if (output != null && stream != null)
				stream.close();
		}
	}
}