Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/DirstateBuilder.java @ 631:8a5cdcb27b8f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
AIOOBE in HgManifest.RevisionMapper. Provide more details about exception context. Create lock file atomically. Test concurrent pull-rebase and read
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 30 May 2013 15:24:17 +0200
parents 6526d8adbc0f
children b4242b7e7dfe
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;
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 617
diff changeset
36 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
37 import org.tmatesoft.hg.repo.HgInvalidStateException;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 import org.tmatesoft.hg.repo.HgManifest.Flags;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 import org.tmatesoft.hg.util.Path;
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 /**
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 * 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
43 *
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 * @see http://mercurial.selenic.com/wiki/DirState
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 * @see HgDirstate
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 * @author Artem Tikhomirov
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 * @author TMate Software Ltd.
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 */
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 public class DirstateBuilder {
526
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> 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
51 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
52 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
53 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
54 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
55 private final Internals hgRepo;
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 private final EncodingHelper encodingHelper;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
58 public DirstateBuilder(Internals internalRepo) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
59 hgRepo = internalRepo;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
60 encodingHelper = internalRepo.buildFileNameEncodingHelper();
525
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
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 public void parents(Nodeid p1, Nodeid p2) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 parent1 = p1 == null ? Nodeid.NULL : p1;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 parent2 = p2 == null ? Nodeid.NULL : p2;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67
580
bd5926e24aa3 Respect unix flags for checkout/revert
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 529
diff changeset
68 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
69 forget(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
70 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
71 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
72
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
73 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
74 // `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
75 forget(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
76 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
77 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
78
529
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
79 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
80 forget(fname);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
81 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
82 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
83
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
84 public void recordRemoved(Path fname) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
85 HgDirstate.Record r = forget(fname);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
86 HgDirstate.Record n;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
87 if (r == null) {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
88 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
89 } else {
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
90 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
91 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
92 removed.put(fname, n);
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
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
95 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
96 HgDirstate.Record r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
97 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
98 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
99 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
100 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
101 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
102 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
103 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
104 return r;
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
105 }
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
106 return merged.remove(fname);
525
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
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
109 public void serialize(WritableByteChannel dest) throws IOException {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
110 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
111 ByteBuffer bb = ByteBuffer.allocate(256);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
112 bb.put(parent1.toByteArray());
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
113 bb.put(parent2.toByteArray());
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
114 bb.flip();
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
115 // header
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
116 int written = dest.write(bb);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
117 if (written != bb.limit()) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
118 throw new IOException("Incomplete write");
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
119 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
120 bb.clear();
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
121 // entries
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
122 @SuppressWarnings("unchecked")
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
123 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
124 ByteBuffer recordTypes = ByteBuffer.allocate(4);
95bdcf75e71e Command to schedule addition/removal of repository files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
125 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
126 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
127 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
128 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
129 // 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
130 // 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
131 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
132 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
133 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
134 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
135 bb.put(recordType);
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
136 bb.putInt(r.mode());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
137 bb.putInt(r.size());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
138 bb.putInt(r.modificationTime());
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
139 bb.putInt(length);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
140 bb.put(fname);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
141 if (copyOrigin != null) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
142 bb.put((byte) 0);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
143 bb.put(copyOrigin);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
144 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
145 bb.flip();
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
146 written = dest.write(bb);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
147 if (written != bb.limit()) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
148 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
149 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
150 bb.clear();
525
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 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
153 }
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
154
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
155 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
156 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
157 try {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
158 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
159 serialize(dirstate);
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
160 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
161 tr.done(dirstateFile);
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
162 } 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
163 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
164 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
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
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 617
diff changeset
168 public void fillFrom(DirstateReader dirstate) throws HgInvalidControlFileException {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
169 // 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
170 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
171
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
172 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
173 switch (kind) {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
174 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
175 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
176 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
177 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
178 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
179 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
180 return true;
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 });
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
183 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
184 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
185
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
186
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
187 private static ByteBuffer ensureCapacity(ByteBuffer buf, int cap) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
188 if (buf.capacity() >= cap) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
189 return buf;
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
190 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
191 return ByteBuffer.allocate(cap);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
192 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
193 }