Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/HgRepository.java @ 114:46291ec605a0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Filters to read and initialize according to configuration files
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 03 Feb 2011 22:13:55 +0100
parents 54562de502f7
children c0cc2535462c
rev   line source
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1 /*
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2 * Copyright (c) 2010-2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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a3a2e5deb320 Updated contact address to support@hg4j.com
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import java.io.File;
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20 import java.io.IOException;
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21 import java.lang.ref.SoftReference;
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22 import java.util.ArrayList;
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23 import java.util.Collections;
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24 import java.util.HashMap;
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25 import java.util.List;
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27 import org.tmatesoft.hg.core.Path;
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28 import org.tmatesoft.hg.internal.ConfigFile;
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29 import org.tmatesoft.hg.internal.DataAccessProvider;
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30 import org.tmatesoft.hg.internal.Filter;
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31 import org.tmatesoft.hg.internal.RequiresFile;
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32 import org.tmatesoft.hg.internal.RevlogStream;
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33 import org.tmatesoft.hg.util.FileWalker;
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34 import org.tmatesoft.hg.util.PathRewrite;
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38 /**
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39 * Shall be as state-less as possible, all the caching happens outside the repo, in commands/walkers
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40 *
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41 * @author Artem Tikhomirov
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42 * @author TMate Software Ltd.
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43 */
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44 public final class HgRepository {
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46 public static final int TIP = -1;
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47 public static final int BAD_REVISION = Integer.MIN_VALUE;
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48 public static final int WORKING_COPY = -2;
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49
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50 // temp aux marker method
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51 public static IllegalStateException notImplemented() {
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52 return new IllegalStateException("Not implemented");
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53 }
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55 private final File repoDir; // .hg folder
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56 private final String repoLocation;
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57 private final DataAccessProvider dataAccess;
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58 private final PathRewrite normalizePath = new PathRewrite() {
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59
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60 public String rewrite(String path) {
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61 // TODO handle . and .. (although unlikely to face them from GUI client)
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62 path = path.replace('\\', '/').replace("//", "/");
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63 if (path.startsWith("/")) {
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64 path = path.substring(1);
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65 }
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66 return path;
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67 }
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68 };
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69 private final PathRewrite dataPathHelper;
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70 private final PathRewrite repoPathHelper;
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71
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72 private HgChangelog changelog;
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73 private HgManifest manifest;
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74 private HgTags tags;
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75 // XXX perhaps, shall enable caching explicitly
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76 private final HashMap<Path, SoftReference<RevlogStream>> streamsCache = new HashMap<Path, SoftReference<RevlogStream>>();
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78 private final org.tmatesoft.hg.internal.Internals impl = new org.tmatesoft.hg.internal.Internals();
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79 private HgIgnore ignore;
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80 private ConfigFile configFile;
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82 HgRepository(String repositoryPath) {
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83 repoDir = null;
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84 repoLocation = repositoryPath;
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85 dataAccess = null;
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86 dataPathHelper = repoPathHelper = null;
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87 }
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89 HgRepository(File repositoryRoot) throws IOException {
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90 assert ".hg".equals(repositoryRoot.getName()) && repositoryRoot.isDirectory();
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91 repoDir = repositoryRoot;
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92 repoLocation = repositoryRoot.getParentFile().getCanonicalPath();
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93 dataAccess = new DataAccessProvider();
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94 parseRequires();
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95 dataPathHelper = impl.buildDataFilesHelper();
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96 repoPathHelper = impl.buildRepositoryFilesHelper();
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97 }
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100 public String getLocation() {
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101 return repoLocation;
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102 }
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103
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104 public boolean isInvalid() {
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105 return repoDir == null || !repoDir.exists() || !repoDir.isDirectory();
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106 }
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107
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108 public HgChangelog getChangelog() {
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109 if (this.changelog == null) {
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110 String storagePath = repoPathHelper.rewrite("00changelog.i");
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111 RevlogStream content = resolve(Path.create(storagePath));
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112 this.changelog = new HgChangelog(this, content);
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113 }
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114 return this.changelog;
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115 }
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116
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117 public HgManifest getManifest() {
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118 if (this.manifest == null) {
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119 RevlogStream content = resolve(Path.create(repoPathHelper.rewrite("00manifest.i")));
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120 this.manifest = new HgManifest(this, content);
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121 }
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122 return this.manifest;
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123 }
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125 public final HgTags getTags() {
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126 if (tags == null) {
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127 tags = new HgTags();
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diff changeset
128 try {
54562de502f7 Preliminary tags implementation
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diff changeset
129 tags.readGlobal(new File(repoDir.getParentFile(), ".hgtags"));
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130 tags.readLocal(new File(repoDir, "localtags"));
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diff changeset
131 } catch (IOException ex) {
54562de502f7 Preliminary tags implementation
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diff changeset
132 ex.printStackTrace(); // FIXME log or othewise report
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diff changeset
133 }
50
f1db8610da62 Log to consult (placeholder, for now) class to find out associated tags
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134 }
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diff changeset
135 return tags;
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diff changeset
136 }
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diff changeset
137
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diff changeset
138 public HgDataFile getFileNode(String path) {
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139 String nPath = normalizePath.rewrite(path);
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diff changeset
140 String storagePath = dataPathHelper.rewrite(nPath);
77
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diff changeset
141 RevlogStream content = resolve(Path.create(storagePath));
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142 return new HgDataFile(this, Path.create(nPath), content);
74
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diff changeset
143 }
1
a3576694a4d1 Repository detection from local/specified directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 0
diff changeset
144
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6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
145 public HgDataFile getFileNode(Path path) {
77
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diff changeset
146 String storagePath = dataPathHelper.rewrite(path.toString());
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diff changeset
147 RevlogStream content = resolve(Path.create(storagePath));
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diff changeset
148 // XXX no content when no file? or HgDataFile.exists() to detect that? How about files that were removed in previous releases?
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149 return new HgDataFile(this, path, content);
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diff changeset
150 }
2
08db726a0fb7 Shaping out low-level Hg structures
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diff changeset
151
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diff changeset
152 public PathRewrite getPathHelper() { // Really need to be public?
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153 return normalizePath;
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154 }
2
08db726a0fb7 Shaping out low-level Hg structures
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parents: 1
diff changeset
155
114
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
156 // local to hide use of io.File.
74
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diff changeset
157 /*package-local*/ File getRepositoryRoot() {
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diff changeset
158 return repoDir;
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159 }
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diff changeset
160
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161 // XXX package-local, unless there are cases when required from outside (guess, working dir/revision walkers may hide dirstate access and no public visibility needed)
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diff changeset
162 /*package-local*/ final HgDirstate loadDirstate() {
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163 return new HgDirstate(getDataAccess(), new File(repoDir, "dirstate"));
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164 }
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165
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166 // package-local, see comment for loadDirstate
91
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
167 /*package-local*/ final HgIgnore getIgnore() {
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168 // TODO read config for additional locations
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diff changeset
169 if (ignore == null) {
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diff changeset
170 ignore = new HgIgnore();
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diff changeset
171 try {
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
172 File ignoreFile = new File(repoDir.getParentFile(), ".hgignore");
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
173 ignore.read(ignoreFile);
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diff changeset
174 } catch (IOException ex) {
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diff changeset
175 ex.printStackTrace(); // log warn
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diff changeset
176 }
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diff changeset
177 }
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diff changeset
178 return ignore;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
179 }
6f1b88693d48 Complete refactoring to org.tmatesoft
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180
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
181 /*package-local*/ DataAccessProvider getDataAccess() {
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
182 return dataAccess;
6f1b88693d48 Complete refactoring to org.tmatesoft
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183 }
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184
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diff changeset
185 // FIXME not sure repository shall create walkers
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diff changeset
186 /*package-local*/ FileWalker createWorkingDirWalker() {
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
187 return new FileWalker(repoDir.getParentFile());
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diff changeset
188 }
9
d6d2a630f4a6 Access to underlaying file data wrapped into own Access object, implemented with FileChannel and ByteBuffer
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 5
diff changeset
189
2
08db726a0fb7 Shaping out low-level Hg structures
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diff changeset
190 /**
08db726a0fb7 Shaping out low-level Hg structures
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diff changeset
191 * Perhaps, should be separate interface, like ContentLookup
74
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diff changeset
192 * path - repository storage path (i.e. one usually with .i or .d)
2
08db726a0fb7 Shaping out low-level Hg structures
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diff changeset
193 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
194 /*package-local*/ RevlogStream resolve(Path path) {
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
195 final SoftReference<RevlogStream> ref = streamsCache.get(path);
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diff changeset
196 RevlogStream cached = ref == null ? null : ref.get();
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diff changeset
197 if (cached != null) {
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diff changeset
198 return cached;
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diff changeset
199 }
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diff changeset
200 File f = new File(repoDir, path.toString());
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
201 if (f.exists()) {
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diff changeset
202 RevlogStream s = new RevlogStream(dataAccess, f);
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
203 streamsCache.put(path, new SoftReference<RevlogStream>(s));
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
204 return s;
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diff changeset
205 }
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
206 return null; // XXX empty stream instead?
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diff changeset
207 }
114
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
208
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
209 // can't expose internal class, otherwise seems reasonable to have it in API
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
210 /*package-local*/ ConfigFile getConfigFile() {
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parents: 104
diff changeset
211 if (configFile == null) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
212 configFile = impl.newConfigFile();
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
213 configFile.addLocation(new File(System.getProperty("user.home"), ".hgrc"));
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
214 // last one, overrides anything else
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diff changeset
215 // <repo>/.hg/hgrc
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diff changeset
216 configFile.addLocation(new File(getRepositoryRoot(), "hgrc"));
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
217 }
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
218 return configFile;
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diff changeset
219 }
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
220
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
221 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
222 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo));
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
223 }
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
224
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
225 /*package-local*/ List<Filter> getFiltersFromWorkingDirToRepo(Path p) {
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
226 return instantiateFilters(p, new Filter.Options(Filter.Direction.ToRepo));
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diff changeset
227 }
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diff changeset
228
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
229 private List<Filter> instantiateFilters(Path p, Filter.Options opts) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
230 List<Filter.Factory> factories = impl.getFilters(this, getConfigFile());
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parents: 104
diff changeset
231 if (factories.isEmpty()) {
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
232 return Collections.emptyList();
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
233 }
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
234 ArrayList<Filter> rv = new ArrayList<Filter>(factories.size());
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
235 for (Filter.Factory ff : factories) {
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
236 Filter f = ff.create(p, opts);
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
237 if (f != null) {
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
238 rv.add(f);
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
239 }
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
240 }
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diff changeset
241 return rv;
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
242 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
243
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
244 private void parseRequires() {
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
245 new RequiresFile().parse(impl, new File(repoDir, "requires"));
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
246 }
114
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
247
0
dbd663faec1f Basic changelog parsing
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
248 }