Mercurial > hg4j

annotate src/org/tmatesoft/hg/internal/FNCacheFile.java @ 546:cd78e8b9d7bc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
File annotate test. Refactored FileAnnotation as standalone class, introduced LineInspector to make line offset calc code shared
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 18 Feb 2013 19:19:48 +0100
parents 9edfd5a223b8
children 6ca3d0c5b4bc
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;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 import org.tmatesoft.hg.util.Path;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26
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 * <blockquote>
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
29 * 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
30 * </blockquote>
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 * @see http://mercurial.selenic.com/wiki/fncacheRepoFormat
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32 * @author Artem Tikhomirov
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 * @author TMate Software Ltd.
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 */
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 public class FNCacheFile {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 private final Internals repo;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 private final ArrayList<Path> files;
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 FNCacheFile(Internals internalRepo) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 repo = internalRepo;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 files = new ArrayList<Path>();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 public void read(Path.Source pathFactory) throws IOException {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 File f = fncacheFile();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 files.clear();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 if (!f.exists()) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 return;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
51 ArrayList<String> entries = new ArrayList<String>();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 // 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
53 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
54 for (String e : entries) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 files.add(pathFactory.path(e));
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57 }
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 public void write() throws IOException {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 if (files.isEmpty()) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 return;
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 File f = fncacheFile();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 f.getParentFile().mkdirs();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 final Charset filenameEncoding = repo.getFilenameEncoding();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 FileOutputStream fncacheFile = new FileOutputStream(f);
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 for (Path p : files) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68 String s = "data/" + p.toString() + ".i"; // TODO post-1.0 this is plain wrong. (a) likely need .d files, too; (b) what about dh/ location?
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
69 fncacheFile.write(s.getBytes(filenameEncoding));
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
70 fncacheFile.write(0x0A); // http://mercurial.selenic.com/wiki/fncacheRepoFormat
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
71 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
72 fncacheFile.close();
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
73 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
74
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75 public void add(Path p) {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76 files.add(p);
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 }
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 private File fncacheFile() {
9edfd5a223b8 Commit: handle empty repository case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 return repo.getFileFromStoreDir("fncache");
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 }