/*
    * Copyright (C) 2012 Google Inc. and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  
  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.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;
  
  	/** {@inheritDoc} */
  	@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(), e);
  			}
  		} catch (FileNotFoundException e) {
  			throw die(e.getMessage(), e);
  		} finally {
  			if (output != null && stream != null)
  				stream.close();
  		}
  	}
  }