Mercurial > hg4j

annotate src/org/tmatesoft/hg/internal/DirstateBuilder.java @ 617:65c01508f002

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 15 May 2013 20:10:09 +0200
parents bd5926e24aa3
children 6526d8adbc0f
rev   line source
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2012-2013 TMate Software Ltd
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
617
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
19 import static org.tmatesoft.hg.repo.HgRepositoryFiles.Dirstate;
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
20 import static org.tmatesoft.hg.repo.HgRepositoryFiles.UndoDirstate;
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
21
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
22 import java.io.File;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
23 import java.io.FileOutputStream;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 import java.io.IOException;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 import java.nio.ByteBuffer;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
26 import java.nio.channels.FileChannel;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 import java.nio.channels.WritableByteChannel;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
28 import java.util.Map;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
29 import java.util.TreeMap;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
31 import org.tmatesoft.hg.core.HgIOException;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 import org.tmatesoft.hg.core.Nodeid;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 import org.tmatesoft.hg.repo.HgDirstate;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
34 import org.tmatesoft.hg.repo.HgDirstate.EntryKind;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
35 import org.tmatesoft.hg.repo.HgDirstate.Record;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
36 import org.tmatesoft.hg.repo.HgInvalidStateException;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 import org.tmatesoft.hg.repo.HgManifest.Flags;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 import org.tmatesoft.hg.util.Path;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 /**
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 * Facility to build a dirstate file as described in {@linkplain http://mercurial.selenic.com/wiki/DirState}
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 *
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 * @see http://mercurial.selenic.com/wiki/DirState
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 * @see HgDirstate
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 * @author Artem Tikhomirov
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 * @author TMate Software Ltd.
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 */
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 public class DirstateBuilder {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
49 private Map<Path, HgDirstate.Record> normal = new TreeMap<Path, HgDirstate.Record>();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
50 private Map<Path, HgDirstate.Record> added = new TreeMap<Path, HgDirstate.Record>();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
51 private Map<Path, HgDirstate.Record> removed = new TreeMap<Path, HgDirstate.Record>();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
52 private Map<Path, HgDirstate.Record> merged = new TreeMap<Path, HgDirstate.Record>();
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 private Nodeid parent1, parent2;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
54 private final Internals hgRepo;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 private final EncodingHelper encodingHelper;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
57 public DirstateBuilder(Internals internalRepo) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
58 hgRepo = internalRepo;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
59 encodingHelper = internalRepo.buildFileNameEncodingHelper();
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62 public void parents(Nodeid p1, Nodeid p2) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 parent1 = p1 == null ? Nodeid.NULL : p1;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 parent2 = p2 == null ? Nodeid.NULL : p2;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66
580
bd5926e24aa3 Respect unix flags for checkout/revert
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 529
diff changeset
67 public void recordNormal(Path fname, int fmode, int mtime, int bytesWritten) {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
68 forget(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
69 normal.put(fname, new HgDirstate.Record(fmode, bytesWritten, mtime, fname, null));
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
70 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
71
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
72 public void recordUncertain(Path fname) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
73 // `hg revert` puts "n 0 -1 unset" for the reverted file, so shall we
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
74 forget(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
75 normal.put(fname, new HgDirstate.Record(0, -1, -1, fname, null));
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
76 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
77
529
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
78 public void recordAdded(Path fname, Flags flags, int size) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
79 forget(fname);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
80 added.put(fname, new HgDirstate.Record(0, -1, -1, fname, null));
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
81 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
82
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
83 public void recordRemoved(Path fname) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
84 HgDirstate.Record r = forget(fname);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
85 HgDirstate.Record n;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
86 if (r == null) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
87 n = new HgDirstate.Record(0, -1, -1, fname, null);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
88 } else {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
89 n = new HgDirstate.Record(r.mode(), r.size(), r.modificationTime(), fname, r.copySource());
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
90 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
91 removed.put(fname, n);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
92 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
93
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
94 private HgDirstate.Record forget(Path fname) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
95 HgDirstate.Record r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
96 if ((r = normal.remove(fname)) != null) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
97 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
98 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
99 if ((r = added.remove(fname)) != null) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
100 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
101 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
102 if ((r = removed.remove(fname)) != null) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
103 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
104 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
105 return merged.remove(fname);
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
106 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
107
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
108 public void serialize(WritableByteChannel dest) throws IOException {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
109 assert parent1 != null : "Parent(s) of the working directory shall be set first";
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
110 ByteBuffer bb = ByteBuffer.allocate(256);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
111 bb.put(parent1.toByteArray());
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
112 bb.put(parent2.toByteArray());
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
113 bb.flip();
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
114 // header
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
115 int written = dest.write(bb);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
116 if (written != bb.limit()) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
117 throw new IOException("Incomplete write");
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
118 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
119 bb.clear();
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
120 // entries
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
121 @SuppressWarnings("unchecked")
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
122 Map<Path, HgDirstate.Record>[] all = new Map[] {normal, added, removed, merged};
529
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
123 ByteBuffer recordTypes = ByteBuffer.allocate(4);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
124 recordTypes.put((byte) 'n').put((byte) 'a').put((byte) 'r').put((byte) 'm').flip();
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
125 for (Map<Path, HgDirstate.Record> m : all) {
529
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
126 final byte recordType = recordTypes.get();
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
127 for (HgDirstate.Record r : m.values()) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
128 // regular entry is 1+4+4+4+4+fname.length bytes
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
129 // it might get extended with copy origin, prepended with 0 byte
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
130 byte[] fname = encodingHelper.toDirstate(r.name());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
131 byte[] copyOrigin = r.copySource() == null ? null : encodingHelper.toDirstate(r.copySource());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
132 int length = fname.length + (copyOrigin == null ? 0 : (1 + copyOrigin.length));
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
133 bb = ensureCapacity(bb, 17 + length);
529
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
134 bb.put(recordType);
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
135 bb.putInt(r.mode());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
136 bb.putInt(r.size());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
137 bb.putInt(r.modificationTime());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
138 bb.putInt(length);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
139 bb.put(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
140 if (copyOrigin != null) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
141 bb.put((byte) 0);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
142 bb.put(copyOrigin);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
143 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
144 bb.flip();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
145 written = dest.write(bb);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
146 if (written != bb.limit()) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
147 throw new IOException("Incomplete write");
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
148 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
149 bb.clear();
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
150 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
151 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
152 }
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
153
617
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
154 public void serialize(Transaction tr) throws HgIOException {
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
155 File dirstateFile = tr.prepare(hgRepo.getRepositoryFile(Dirstate), hgRepo.getRepositoryFile(UndoDirstate));
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
156 try {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
157 FileChannel dirstate = new FileOutputStream(dirstateFile).getChannel();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
158 serialize(dirstate);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
159 dirstate.close();
617
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
160 tr.done(dirstateFile);
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
161 } catch (IOException ex) {
617
65c01508f002 Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 580
diff changeset
162 tr.failure(dirstateFile, ex);
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
163 throw new HgIOException("Can't write down new directory state", ex, dirstateFile);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
164 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
165 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
166
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
167 public void fillFrom(DirstateReader dirstate) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
168 // TODO preserve order, if reasonable and possible
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
169 dirstate.readInto(new HgDirstate.Inspector() {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
170
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
171 public boolean next(EntryKind kind, Record entry) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
172 switch (kind) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
173 case Normal: normal.put(entry.name(), entry); break;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
174 case Added : added.put(entry.name(), entry); break;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
175 case Removed : removed.put(entry.name(), entry); break;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
176 case Merged : merged.put(entry.name(), entry); break;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
177 default: throw new HgInvalidStateException(String.format("Unexpected entry in the dirstate: %s", kind));
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
178 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
179 return true;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
180 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
181 });
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
182 parents(dirstate.parents().first(), dirstate.parents().second());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
183 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
184
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
185
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
186 private static ByteBuffer ensureCapacity(ByteBuffer buf, int cap) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
187 if (buf.capacity() >= cap) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
188 return buf;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
189 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
190 return ByteBuffer.allocate(cap);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
191 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
192 }