Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgFileRevision.java @ 338:3cfa4d908fc9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add options to control DataAccessProvider, allow to turn off use of file memory mapping in particular to solve potential sharing violation (os file handle gets released on MappedByteByffer being GC'd, not on FileChannel.close())
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Nov 2011 04:47:03 +0100
parents ee6b467c1a5f
children 58725dd511b3
rev   line source
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2011 TMate Software Ltd
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.core;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import org.tmatesoft.hg.repo.HgDataFile;
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
20 import org.tmatesoft.hg.repo.HgInternals;
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import org.tmatesoft.hg.repo.HgRepository;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22 import org.tmatesoft.hg.util.ByteChannel;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 import org.tmatesoft.hg.util.CancelledException;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 import org.tmatesoft.hg.util.Path;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 /**
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 * Keeps together information about specific file revision
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 *
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 * @author Artem Tikhomirov
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 * @author TMate Software Ltd.
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 */
249
4c3b9f679412 Deprecated HgLogCommand.FileRevision gone, top-level HgFileRevision is bright and shiny replacement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
32 public final class HgFileRevision {
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 private final HgRepository repo;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 private final Nodeid revision;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 private final Path path;
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
36 private Path origin;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
37 private Boolean isCopy = null; // null means not yet known
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
38
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 public HgFileRevision(HgRepository hgRepo, Nodeid rev, Path p) {
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 if (hgRepo == null || rev == null || p == null) {
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 // since it's package local, it is our code to blame for non validated arguments
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
42 throw new IllegalArgumentException();
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 }
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 repo = hgRepo;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 revision = rev;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 path = p;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 }
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
48
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
49 // this cons shall be used when we know whether p was a copy. Perhaps, shall pass Map<Path,Path> instead to stress orig argument is not optional
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
50 HgFileRevision(HgRepository hgRepo, Nodeid rev, Path p, Path orig) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
51 this(hgRepo, rev, p);
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
52 isCopy = Boolean.valueOf(orig == null);
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
53 origin = orig;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
54 }
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 public Path getPath() {
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 return path;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 }
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 public Nodeid getRevision() {
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 return revision;
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 }
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
62 public boolean wasCopied() {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
63 if (isCopy == null) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
64 checkCopy();
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
65 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
66 return isCopy.booleanValue();
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
67 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
68 /**
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
69 * @return <code>null</code> if {@link #wasCopied()} is <code>false</code>, name of the copy source otherwise.
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
70 */
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
71 public Path getOriginIfCopy() {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
72 if (wasCopied()) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
73 return origin;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
74 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
75 return null;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
76 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
77
237
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
78 public void putContentTo(ByteChannel sink) throws HgDataStreamException, CancelledException {
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 HgDataFile fn = repo.getFileNode(path);
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 int localRevision = fn.getLocalRevision(revision);
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 fn.contentWithFilters(localRevision, sink);
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 }
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83
316
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
84 private void checkCopy() {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
85 HgDataFile fn = repo.getFileNode(path);
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
86 try {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
87 if (fn.isCopy()) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
88 if (fn.getRevision(0).equals(revision)) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
89 // this HgFileRevision represents first revision of the copy
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
90 isCopy = Boolean.TRUE;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
91 origin = fn.getCopySourceName();
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
92 return;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
93 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
94 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
95 } catch (HgDataStreamException ex) {
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
96 HgInternals.getContext(repo).getLog().error(getClass(), ex, null);
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
97 }
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
98 isCopy = Boolean.FALSE;
ee6b467c1a5f Supply HGFileRevision with copy information when possible, calculate it otherwise
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 249
diff changeset
99 }
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
100 }