2 * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
3 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
19 * - Neither the name of the Git Development Community nor the
20 * names of its contributors may be used to endorse or promote
21 * products derived from this software without specific prior
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
25 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
26 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
29 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
34 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
36 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 package org
.spearce
.jgit
.pgm
;
41 import java
.io
.BufferedWriter
;
42 import java
.io
.IOException
;
43 import java
.io
.OutputStreamWriter
;
44 import java
.io
.PrintWriter
;
46 import org
.spearce
.jgit
.lib
.Constants
;
47 import org
.spearce
.jgit
.lib
.ObjectId
;
48 import org
.spearce
.jgit
.lib
.Repository
;
50 abstract class TextBuiltin
{
51 protected static final String REFS_HEADS
= Constants
.HEADS_PREFIX
+ "/";
53 protected static final String REFS_REMOTES
= Constants
.REMOTES_PREFIX
+ "/";
55 protected static final String REFS_TAGS
= Constants
.TAGS_PREFIX
+ "/";
57 protected PrintWriter out
;
59 protected Repository db
;
63 out
= new PrintWriter(new BufferedWriter(new OutputStreamWriter(
64 System
.out
, "UTF-8")));
65 } catch (IOException e
) {
66 throw die("cannot create output stream");
70 abstract void execute(String
[] args
) throws Exception
;
72 protected ObjectId
resolve(final String s
) throws IOException
{
73 final ObjectId r
= db
.resolve(s
);
75 throw die("Not a revision: " + s
);
79 protected static Die
die(final String why
) {
83 protected static String
abbreviateObject(final ObjectId id
) {
84 return id
.toString().substring(0, 7);
87 protected String
abbreviateRef(String dst
, boolean abbreviateRemote
) {
88 if (dst
.startsWith(REFS_HEADS
))
89 dst
= dst
.substring(REFS_HEADS
.length());
90 else if (dst
.startsWith(REFS_TAGS
))
91 dst
= dst
.substring(REFS_TAGS
.length());
92 else if (abbreviateRemote
&& dst
.startsWith(REFS_REMOTES
))
93 dst
= dst
.substring(REFS_REMOTES
.length());