Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/HgRepository.java @ 234:b2cfbe46f9b6

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HgTags got TagInfo to access tags. Tags are read from all branches/revisions now, not only working copy
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 07 Jun 2011 04:28:32 +0200
parents 1792b37650f2
children fd845a53f53d
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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b2cfbe46f9b6 HgTags got TagInfo to access tags. Tags are read from all branches/revisions now, not only working copy
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21 import java.io.StringReader;
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22 import java.lang.ref.SoftReference;
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23 import java.nio.charset.Charset;
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24 import java.util.ArrayList;
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25 import java.util.Collections;
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26 import java.util.HashMap;
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27 import java.util.List;
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29 import org.tmatesoft.hg.core.HgDataStreamException;
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30 import org.tmatesoft.hg.internal.ByteArrayChannel;
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31 import org.tmatesoft.hg.internal.ConfigFile;
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32 import org.tmatesoft.hg.internal.DataAccessProvider;
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33 import org.tmatesoft.hg.internal.Experimental;
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34 import org.tmatesoft.hg.internal.Filter;
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35 import org.tmatesoft.hg.internal.RequiresFile;
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c677e1593919 Moved RevlogStream implementation into .internal
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36 import org.tmatesoft.hg.internal.RevlogStream;
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37 import org.tmatesoft.hg.util.CancelledException;
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38 import org.tmatesoft.hg.util.Path;
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39 import org.tmatesoft.hg.util.PathRewrite;
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40 import org.tmatesoft.hg.util.ProgressSupport;
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44 /**
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45 * Shall be as state-less as possible, all the caching happens outside the repo, in commands/walkers
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46 *
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47 * @author Artem Tikhomirov
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48 * @author TMate Software Ltd.
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49 */
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50 public final class HgRepository {
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52 // if new constants added, consider fixing HgInternals#wrongLocalRevision
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53 public static final int TIP = -3;
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54 public static final int BAD_REVISION = Integer.MIN_VALUE;
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55 public static final int WORKING_COPY = -2;
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56
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57 // temp aux marker method
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58 public static IllegalStateException notImplemented() {
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59 return new IllegalStateException("Not implemented");
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60 }
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62 private final File repoDir; // .hg folder
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63 private final String repoLocation;
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64 private final DataAccessProvider dataAccess;
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65 private final PathRewrite normalizePath;
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66 private final PathRewrite dataPathHelper;
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67 private final PathRewrite repoPathHelper;
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69 private HgChangelog changelog;
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70 private HgManifest manifest;
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71 private HgTags tags;
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72 private HgBranches branches;
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73 private HgMergeState mergeState;
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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 normalizePath = null;
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88 }
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90 HgRepository(String repositoryPath, File repositoryRoot) {
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91 assert ".hg".equals(repositoryRoot.getName()) && repositoryRoot.isDirectory();
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92 assert repositoryPath != null;
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93 assert repositoryRoot != null;
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94 repoDir = repositoryRoot;
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95 repoLocation = repositoryPath;
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96 dataAccess = new DataAccessProvider();
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97 final boolean runningOnWindows = System.getProperty("os.name").indexOf("Windows") != -1;
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98 if (runningOnWindows) {
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99 normalizePath = new PathRewrite() {
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100
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101 public String rewrite(String path) {
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102 // TODO handle . and .. (although unlikely to face them from GUI client)
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103 path = path.replace('\\', '/').replace("//", "/");
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104 if (path.startsWith("/")) {
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105 path = path.substring(1);
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106 }
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107 return path;
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108 }
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109 };
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110 } else {
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111 normalizePath = new PathRewrite.Empty(); // or strip leading slash, perhaps?
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112 }
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113 parseRequires();
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114 dataPathHelper = impl.buildDataFilesHelper();
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115 repoPathHelper = impl.buildRepositoryFilesHelper();
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116 }
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118 @Override
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119 public String toString() {
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120 return getClass().getSimpleName() + "[" + getLocation() + (isInvalid() ? "(BAD)" : "") + "]";
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121 }
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123 public String getLocation() {
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diff changeset
124 return repoLocation;
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125 }
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126
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diff changeset
127 public boolean isInvalid() {
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128 return repoDir == null || !repoDir.exists() || !repoDir.isDirectory();
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129 }
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130
97
ee2c750b036d Changelog to HgChangelog
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diff changeset
131 public HgChangelog getChangelog() {
0
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132 if (this.changelog == null) {
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diff changeset
133 String storagePath = repoPathHelper.rewrite("00changelog.i");
202
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diff changeset
134 RevlogStream content = resolve(Path.create(storagePath), true);
97
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diff changeset
135 this.changelog = new HgChangelog(this, content);
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136 }
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137 return this.changelog;
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138 }
2
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139
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diff changeset
140 public HgManifest getManifest() {
2
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diff changeset
141 if (this.manifest == null) {
202
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diff changeset
142 RevlogStream content = resolve(Path.create(repoPathHelper.rewrite("00manifest.i")), true);
13
df8c67f3006a Basic manifest parsing to analyze what's in there
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diff changeset
143 this.manifest = new HgManifest(this, content);
2
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144 }
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145 return this.manifest;
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146 }
50
f1db8610da62 Log to consult (placeholder, for now) class to find out associated tags
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147
231
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148 public HgTags getTags() {
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149 if (tags == null) {
234
b2cfbe46f9b6 HgTags got TagInfo to access tags. Tags are read from all branches/revisions now, not only working copy
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150 tags = new HgTags(this);
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diff changeset
151 try {
234
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diff changeset
152 HgDataFile hgTags = getFileNode(".hgtags");
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diff changeset
153 if (hgTags.exists()) {
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154 for (int i = 0; i <= hgTags.getLastRevision(); i++) { // FIXME in fact, would be handy to have walk(start,end)
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diff changeset
155 // method for data files as well, though it looks odd.
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diff changeset
156 try {
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diff changeset
157 ByteArrayChannel sink = new ByteArrayChannel();
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diff changeset
158 hgTags.content(i, sink);
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diff changeset
159 final String content = new String(sink.toArray(), "UTF8");
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diff changeset
160 tags.readGlobal(new StringReader(content));
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diff changeset
161 } catch (CancelledException ex) {
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diff changeset
162 ex.printStackTrace(); // IGNORE, can't happen, we did not configure cancellation
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diff changeset
163 } catch (HgDataStreamException ex) {
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diff changeset
164 ex.printStackTrace(); // FIXME need to react
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diff changeset
165 } catch (IOException ex) {
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diff changeset
166 // UnsupportedEncodingException can't happen (UTF8)
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diff changeset
167 // only from readGlobal. Need to reconsider exceptions thrown from there
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diff changeset
168 ex.printStackTrace(); // XXX need to decide what to do this. failure to read single revision shall not break complete cycle
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diff changeset
169 }
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diff changeset
170 }
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diff changeset
171 }
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diff changeset
172 tags.readGlobal(new File(repoDir.getParentFile(), ".hgtags")); // XXX replace with HgDataFile.workingCopy
104
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diff changeset
173 tags.readLocal(new File(repoDir, "localtags"));
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diff changeset
174 } catch (IOException ex) {
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diff changeset
175 ex.printStackTrace(); // FIXME log or othewise report
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diff changeset
176 }
50
f1db8610da62 Log to consult (placeholder, for now) class to find out associated tags
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177 }
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178 return tags;
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179 }
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180
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
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diff changeset
181 public HgBranches getBranches() {
220
8de327242aa0 Basic information about branches
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diff changeset
182 if (branches == null) {
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183 branches = new HgBranches(this);
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184 branches.collect(ProgressSupport.Factory.get(null));
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185 }
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186 return branches;
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diff changeset
187 }
231
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diff changeset
188
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diff changeset
189 @Experimental(reason="Perhaps, shall not cache instance, and provide loadMergeState as it may change often")
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diff changeset
190 public HgMergeState getMergeState() {
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diff changeset
191 if (mergeState == null) {
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diff changeset
192 mergeState = new HgMergeState(this);
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diff changeset
193 }
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diff changeset
194 return mergeState;
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diff changeset
195 }
220
8de327242aa0 Basic information about branches
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diff changeset
196
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6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
197 public HgDataFile getFileNode(String path) {
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diff changeset
198 String nPath = normalizePath.rewrite(path);
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diff changeset
199 String storagePath = dataPathHelper.rewrite(nPath);
202
706bcc7cfee4 Basic test for HgIncomingCommand. Fix RepositoryComparator for cases when whole repository is unknown. Respect freshly initialized (empty) repositories in general.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
200 RevlogStream content = resolve(Path.create(storagePath), false);
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
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diff changeset
201 Path p = Path.create(nPath);
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diff changeset
202 if (content == null) {
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diff changeset
203 return new HgDataFile(this, p);
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diff changeset
204 }
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diff changeset
205 return new HgDataFile(this, p, content);
74
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diff changeset
206 }
1
a3576694a4d1 Repository detection from local/specified directory
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parents: 0
diff changeset
207
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
208 public HgDataFile getFileNode(Path path) {
77
c677e1593919 Moved RevlogStream implementation into .internal
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diff changeset
209 String storagePath = dataPathHelper.rewrite(path.toString());
202
706bcc7cfee4 Basic test for HgIncomingCommand. Fix RepositoryComparator for cases when whole repository is unknown. Respect freshly initialized (empty) repositories in general.
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diff changeset
210 RevlogStream content = resolve(Path.create(storagePath), false);
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
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diff changeset
211 // XXX no content when no file? or HgDataFile.exists() to detect that?
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diff changeset
212 if (content == null) {
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diff changeset
213 return new HgDataFile(this, path);
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diff changeset
214 }
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diff changeset
215 return new HgDataFile(this, path, content);
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diff changeset
216 }
2
08db726a0fb7 Shaping out low-level Hg structures
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parents: 1
diff changeset
217
142
37a34044e6bd More reasonable use of path normalizer and path.source
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
218 /* clients need to rewrite path from their FS to a repository-friendly paths, and, perhaps, vice versa*/
37a34044e6bd More reasonable use of path normalizer and path.source
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parents: 141
diff changeset
219 public PathRewrite getToRepoPathHelper() {
74
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diff changeset
220 return normalizePath;
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diff changeset
221 }
2
08db726a0fb7 Shaping out low-level Hg structures
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diff changeset
222
114
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
223 // local to hide use of io.File.
74
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diff changeset
224 /*package-local*/ File getRepositoryRoot() {
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diff changeset
225 return repoDir;
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diff changeset
226 }
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diff changeset
227
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
228 // 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
229 /*package-local*/ final HgDirstate loadDirstate() {
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diff changeset
230 return new HgDirstate(getDataAccess(), new File(repoDir, "dirstate"));
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diff changeset
231 }
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diff changeset
232
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
233 // package-local, see comment for loadDirstate
91
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
234 /*package-local*/ final HgIgnore getIgnore() {
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diff changeset
235 // TODO read config for additional locations
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diff changeset
236 if (ignore == null) {
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diff changeset
237 ignore = new HgIgnore();
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diff changeset
238 try {
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diff changeset
239 File ignoreFile = new File(repoDir.getParentFile(), ".hgignore");
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diff changeset
240 ignore.read(ignoreFile);
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diff changeset
241 } catch (IOException ex) {
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
242 ex.printStackTrace(); // log warn
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diff changeset
243 }
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
244 }
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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245 return ignore;
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246 }
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247
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248 /*package-local*/ DataAccessProvider getDataAccess() {
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249 return dataAccess;
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250 }
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251
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252 /**
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253 * Perhaps, should be separate interface, like ContentLookup
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254 * path - repository storage path (i.e. one usually with .i or .d)
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255 */
202
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256 /*package-local*/ RevlogStream resolve(Path path, boolean shallFakeNonExistent) {
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257 final SoftReference<RevlogStream> ref = streamsCache.get(path);
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258 RevlogStream cached = ref == null ? null : ref.get();
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259 if (cached != null) {
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260 return cached;
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261 }
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262 File f = new File(repoDir, path.toString());
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263 if (f.exists()) {
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264 RevlogStream s = new RevlogStream(dataAccess, f);
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265 streamsCache.put(path, new SoftReference<RevlogStream>(s));
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266 return s;
202
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267 } else {
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268 if (shallFakeNonExistent) {
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269 try {
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270 File fake = File.createTempFile(f.getName(), null);
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271 fake.deleteOnExit();
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272 return new RevlogStream(dataAccess, fake);
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273 } catch (IOException ex) {
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274 ex.printStackTrace(); // FIXME report in debug
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275 }
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276 }
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277 }
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278 return null; // XXX empty stream instead?
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279 }
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280
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281 // can't expose internal class, otherwise seems reasonable to have it in API
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282 /*package-local*/ ConfigFile getConfigFile() {
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283 if (configFile == null) {
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284 configFile = impl.newConfigFile();
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285 configFile.addLocation(new File(System.getProperty("user.home"), ".hgrc"));
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286 // last one, overrides anything else
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287 // <repo>/.hg/hgrc
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288 configFile.addLocation(new File(getRepositoryRoot(), "hgrc"));
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289 }
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290 return configFile;
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291 }
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292
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293 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) {
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294 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo));
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295 }
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296
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297 /*package-local*/ List<Filter> getFiltersFromWorkingDirToRepo(Path p) {
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298 return instantiateFilters(p, new Filter.Options(Filter.Direction.ToRepo));
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299 }
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300
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301 private List<Filter> instantiateFilters(Path p, Filter.Options opts) {
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302 List<Filter.Factory> factories = impl.getFilters(this, getConfigFile());
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303 if (factories.isEmpty()) {
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304 return Collections.emptyList();
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305 }
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306 ArrayList<Filter> rv = new ArrayList<Filter>(factories.size());
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307 for (Filter.Factory ff : factories) {
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308 Filter f = ff.create(p, opts);
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309 if (f != null) {
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310 rv.add(f);
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311 }
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312 }
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313 return rv;
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314 }
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315
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316 private void parseRequires() {
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317 new RequiresFile().parse(impl, new File(repoDir, "requires"));
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318 }
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319
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320 }