/*
    * 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,
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   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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   */
  
  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 = "--prefix", metaVar = "metaVar_archivePrefix", usage = "usage_archivePrefix")
  	private String prefix;
  
  	@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 (Git git = new Git(db)) {
  				ArchiveCommand cmd = git.archive()
  					.setTree(tree)
  					.setFormat(format)
  					.setPrefix(prefix)
  					.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();
 		}
 	}
 }