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1   /*
2    * Copyright (C) 2009, Daniel Cheng (aka SDiZ) <git@sdiz.net>
3    * Copyright (C) 2009, Daniel Cheng (aka SDiZ) <j16sdiz+freenet@gmail.com>
4    * Copyright (C) 2015 Thomas Meyer <thomas@m3y3r.de>
5    * and other copyright owners as documented in the project's IP log.
6    *
7    * This program and the accompanying materials are made available
8    * under the terms of the Eclipse Distribution License v1.0 which
9    * accompanies this distribution, is reproduced below, and is
10   * available at http://www.eclipse.org/org/documents/edl-v10.php
11   *
12   * All rights reserved.
13   *
14   * Redistribution and use in source and binary forms, with or
15   * without modification, are permitted provided that the following
16   * conditions are met:
17   *
18   * - Redistributions of source code must retain the above copyright
19   *   notice, this list of conditions and the following disclaimer.
20   *
21   * - Redistributions in binary form must reproduce the above
22   *   copyright notice, this list of conditions and the following
23   *   disclaimer in the documentation and/or other materials provided
24   *   with the distribution.
25   *
26   * - Neither the name of the Eclipse Foundation, Inc. nor the
27   *   names of its contributors may be used to endorse or promote
28   *   products derived from this software without specific prior
29   *   written permission.
30   *
31   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
32   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
33   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
36   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
37   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
38   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
39   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
40   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
41   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
42   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
43   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44   */
45  
46  package org.eclipse.jgit.pgm;
47  
48  import java.io.IOException;
49  import java.util.ArrayList;
50  import java.util.List;
51  
52  import org.eclipse.jgit.lib.ObjectId;
53  import org.eclipse.jgit.lib.Ref;
54  import org.eclipse.jgit.pgm.internal.CLIText;
55  import org.eclipse.jgit.pgm.opt.CmdLineParser;
56  import org.kohsuke.args4j.Argument;
57  import org.kohsuke.args4j.CmdLineException;
58  import org.kohsuke.args4j.Option;
59  
60  @Command(usage = "usage_RevParse")
61  class RevParse extends TextBuiltin {
62  	@Option(name = "--all", usage = "usage_RevParseAll")
63  	boolean all;
64  
65  	@Option(name = "--verify", usage = "usage_RevParseVerify")
66  	boolean verify;
67  
68  	@Argument(index = 0, metaVar = "metaVar_commitish")
69  	private List<ObjectId> commits = new ArrayList<>();
70  
71  	/** {@inheritDoc} */
72  	@Override
73  	protected void run() {
74  		try {
75  			if (all) {
76  				for (Ref r : db.getRefDatabase().getRefs()) {
77  					ObjectId objectId = r.getObjectId();
78  					// getRefs skips dangling symrefs, so objectId should never
79  					// be null.
80  					if (objectId == null) {
81  						throw new NullPointerException();
82  					}
83  					outw.println(objectId.name());
84  				}
85  			} else {
86  				if (verify && commits.size() > 1) {
87  					final CmdLineParserParser.html#CmdLineParser">CmdLineParser clp = new CmdLineParser(this);
88  					throw new CmdLineException(clp,
89  							CLIText.format(CLIText.get().needSingleRevision));
90  				}
91  
92  				for (ObjectId o : commits) {
93  					outw.println(o.name());
94  				}
95  			}
96  		} catch (IOException | CmdLineException e) {
97  			throw die(e.getMessage(), e);
98  		}
99  	}
100 }