Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/GeneratePatchInspector.java @ 710:cf200271439a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
KeywordFilter: 'IllegalStateException: need buffer of at least...' during status op for a small file
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 07 Oct 2013 01:56:05 +0200
parents 7839ff0bfd78
children
rev   line source
544
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2013 TMate Software Ltd
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
703
7839ff0bfd78 Refactor: move diff/blame related code to a separate package
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 551
diff changeset
19 import org.tmatesoft.hg.internal.diff.DiffHelper;
7839ff0bfd78 Refactor: move diff/blame related code to a separate package
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 551
diff changeset
20 import org.tmatesoft.hg.internal.diff.DiffHelper.DeltaInspector;
7839ff0bfd78 Refactor: move diff/blame related code to a separate package
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 551
diff changeset
21 import org.tmatesoft.hg.internal.diff.DiffHelper.LineSequence;
544
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 class GeneratePatchInspector extends DeltaInspector<LineSequence> {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 private final Patch deltaCollector;
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 GeneratePatchInspector(Patch p) {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 assert p != null;
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 deltaCollector = p;
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 }
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 public static Patch delta(byte[] prev, byte[] content) {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 Patch rv = new Patch();
551
4ea0351ca878 Better (precise) name for diff facility, tests
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 544
diff changeset
33 DiffHelper<LineSequence> pg = new DiffHelper<LineSequence>();
544
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 pg.init(new LineSequence(prev).splitByNewlines(), new LineSequence(content).splitByNewlines());
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 pg.findMatchingBlocks(new GeneratePatchInspector(rv));
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 return rv;
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 }
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 @Override
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 protected void changed(int s1From, int s1To, int s2From, int s2To) {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 int from = seq1.chunk(s1From).getOffset();
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 int to = seq1.chunk(s1To).getOffset();
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 byte[] data = seq2.data(s2From, s2To);
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 deltaCollector.add(from, to, data);
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 }
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 @Override
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 protected void deleted(int s2DeletionPoint, int s1From, int s1To) {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 int from = seq1.chunk(s1From).getOffset();
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 int to = seq1.chunk(s1To).getOffset();
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 deltaCollector.add(from, to, new byte[0]);
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 }
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 @Override
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 protected void added(int s1InsertPoint, int s2From, int s2To) {
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 int insPoint = seq1.chunk(s1InsertPoint).getOffset();
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 byte[] data = seq2.data(s2From, s2To);
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 deltaCollector.add(insPoint, insPoint, data);
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 }
7f5998a9619d Refactor PatchGenerator to be generic and welcome sequence of any nature
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 }