Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/FNCacheFile.java @ 600:46f29b73e51e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Utilize RevisionLookup to speed-up getRevisionIndex of both manifest and changelog
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 03 May 2013 17:03:31 +0200
parents 6ca3d0c5b4bc
children 5e0313485eef
rev   line source
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2013 TMate Software Ltd
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import java.io.File;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import java.io.FileOutputStream;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import java.io.IOException;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22 import java.nio.charset.Charset;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 import java.util.ArrayList;
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
24 import java.util.List;
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 import org.tmatesoft.hg.util.Path;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 /**
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
29 * Append-only fncache support
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
30 *
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 * <blockquote>
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 * The fncache file contains the paths of all filelog files in the store as encoded by mercurial.filelog.encodedir. The paths are separated by '\n' (LF).
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 * </blockquote>
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 * @see http://mercurial.selenic.com/wiki/fncacheRepoFormat
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
35 *
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
36 *
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 * @author Artem Tikhomirov
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 * @author TMate Software Ltd.
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 */
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 public class FNCacheFile {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 private final Internals repo;
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
43 // private final List<Path> files;
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
44 private List<Path> added;
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 public FNCacheFile(Internals internalRepo) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 repo = internalRepo;
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
48 // files = new ArrayList<Path>();
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
51 /*
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
52 * For append-only option, we don't care reading the original content
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 public void read(Path.Source pathFactory) throws IOException {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 File f = fncacheFile();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 files.clear();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 if (!f.exists()) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 return;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 ArrayList<String> entries = new ArrayList<String>();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 // names in fncache are in local encoding, shall translate to unicode
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 new LineReader(f, repo.getSessionContext().getLog(), repo.getFilenameEncoding()).read(new LineReader.SimpleLineCollector(), entries);
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62 for (String e : entries) {
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
63 // FIXME plain wrong, need either to decode paths and strip off .i/.d or (if keep names as is) change write()
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 files.add(pathFactory.path(e));
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
67 */
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
69 public void write() throws IOException {
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
70 if (added == null || added.isEmpty()) {
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
71 return;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
72 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
73 File f = fncacheFile();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
74 f.getParentFile().mkdirs();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75 final Charset filenameEncoding = repo.getFilenameEncoding();
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
76 FileOutputStream fncacheFile = new FileOutputStream(f, true);
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
77 for (Path p : added) {
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
78 String s = "data/" + p.toString() + ".i"; // TODO post-1.0 this is plain wrong. (a) need .d files, too; (b) what about dh/ location?
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 fncacheFile.write(s.getBytes(filenameEncoding));
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 fncacheFile.write(0x0A); // http://mercurial.selenic.com/wiki/fncacheRepoFormat
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 fncacheFile.close();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 public void add(Path p) {
559
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
86 if (added == null) {
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
87 added = new ArrayList<Path>();
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
88 }
6ca3d0c5b4bc Commit: tests and fixes for defects discovered
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 539
diff changeset
89 added.add(p);
539
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
90 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
91
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
92 private File fncacheFile() {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
93 return repo.getFileFromStoreDir("fncache");
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
94 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
95 }