Mercurial > jhg

annotate src/org/tmatesoft/hg/repo/HgRepository.java @ 409:0f5696623512 smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Support glob path pattern rewrite to facilitate use of globs with Windows path separator
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 16 Mar 2012 20:14:47 +0100
parents 30922c728341
children 63c5a9d7ca3f
rev   line source
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1 /*
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2 * Copyright (c) 2010-2012 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.io.StringReader;
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22 import java.lang.ref.SoftReference;
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23 import java.util.ArrayList;
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24 import java.util.Collections;
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25 import java.util.HashMap;
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26 import java.util.List;
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28 import org.tmatesoft.hg.core.HgDataStreamException;
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29 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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30 import org.tmatesoft.hg.core.Nodeid;
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31 import org.tmatesoft.hg.core.SessionContext;
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32 import org.tmatesoft.hg.internal.ByteArrayChannel;
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33 import org.tmatesoft.hg.internal.ConfigFile;
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34 import org.tmatesoft.hg.internal.DataAccessProvider;
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35 import org.tmatesoft.hg.internal.Experimental;
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36 import org.tmatesoft.hg.internal.Filter;
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37 import org.tmatesoft.hg.internal.Internals;
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c677e1593919 Moved RevlogStream implementation into .internal
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38 import org.tmatesoft.hg.internal.RevlogStream;
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39 import org.tmatesoft.hg.internal.SubrepoManager;
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40 import org.tmatesoft.hg.util.CancelledException;
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41 import org.tmatesoft.hg.util.Pair;
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42 import org.tmatesoft.hg.util.Path;
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43 import org.tmatesoft.hg.util.PathPool;
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44 import org.tmatesoft.hg.util.PathRewrite;
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45 import org.tmatesoft.hg.util.ProgressSupport;
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49 /**
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50 * Shall be as state-less as possible, all the caching happens outside the repo, in commands/walkers
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51 *
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52 * @author Artem Tikhomirov
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53 * @author TMate Software Ltd.
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54 */
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55 public final class HgRepository {
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57 // if new constants added, consider fixing HgInternals#wrongRevisionIndex
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58 public static final int TIP = -3;
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59 public static final int BAD_REVISION = Integer.MIN_VALUE;
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60 public static final int WORKING_COPY = -2;
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62 public static final String DEFAULT_BRANCH_NAME = "default";
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64 // temp aux marker method
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65 public static IllegalStateException notImplemented() {
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66 return new IllegalStateException("Not implemented");
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67 }
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69 private final File repoDir; // .hg folder
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70 private final File workingDir; // .hg/../
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71 private final String repoLocation;
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72 private final DataAccessProvider dataAccess;
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73 private final PathRewrite normalizePath;
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74 private final PathRewrite dataPathHelper;
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75 private final PathRewrite repoPathHelper;
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76 private final SessionContext sessionContext;
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78 private HgChangelog changelog;
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79 private HgManifest manifest;
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80 private HgTags tags;
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81 private HgBranches branches;
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82 private HgMergeState mergeState;
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83 private SubrepoManager subRepos;
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85 // XXX perhaps, shall enable caching explicitly
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86 private final HashMap<Path, SoftReference<RevlogStream>> streamsCache = new HashMap<Path, SoftReference<RevlogStream>>();
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88 private final org.tmatesoft.hg.internal.Internals impl;
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89 private HgIgnore ignore;
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90 private HgRepoConfig repoConfig;
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92 HgRepository(String repositoryPath) {
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93 repoDir = null;
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94 workingDir = null;
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95 repoLocation = repositoryPath;
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96 dataAccess = null;
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97 dataPathHelper = repoPathHelper = null;
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98 normalizePath = null;
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99 sessionContext = null;
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100 impl = null;
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101 }
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103 HgRepository(SessionContext ctx, String repositoryPath, File repositoryRoot) {
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104 assert ".hg".equals(repositoryRoot.getName()) && repositoryRoot.isDirectory();
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105 assert repositoryPath != null;
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106 assert repositoryRoot != null;
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107 assert ctx != null;
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108 repoDir = repositoryRoot;
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109 workingDir = repoDir.getParentFile();
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110 if (workingDir == null) {
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111 throw new IllegalArgumentException(repoDir.toString());
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112 }
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113 impl = new org.tmatesoft.hg.internal.Internals(ctx);
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114 repoLocation = repositoryPath;
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115 sessionContext = ctx;
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116 dataAccess = new DataAccessProvider(ctx);
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117 impl.parseRequires(this, new File(repoDir, "requires"));
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118 normalizePath = impl.buildNormalizePathRewrite();
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119 dataPathHelper = impl.buildDataFilesHelper();
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120 repoPathHelper = impl.buildRepositoryFilesHelper();
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121 }
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122
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123 @Override
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124 public String toString() {
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125 return getClass().getSimpleName() + "[" + getLocation() + (isInvalid() ? "(BAD)" : "") + "]";
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126 }
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127
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128 public String getLocation() {
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129 return repoLocation;
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130 }
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131
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132 public boolean isInvalid() {
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133 return repoDir == null || !repoDir.exists() || !repoDir.isDirectory();
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134 }
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135
97
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136 public HgChangelog getChangelog() {
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137 if (changelog == null) {
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138 CharSequence storagePath = repoPathHelper.rewrite("00changelog.i");
202
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139 RevlogStream content = resolve(Path.create(storagePath), true);
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140 changelog = new HgChangelog(this, content);
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141 }
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142 return changelog;
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143 }
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144
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145 public HgManifest getManifest() {
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146 if (manifest == null) {
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147 RevlogStream content = resolve(Path.create(repoPathHelper.rewrite("00manifest.i")), true);
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148 manifest = new HgManifest(this, content);
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149 }
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150 return manifest;
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151 }
50
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152
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153 public HgTags getTags() throws HgInvalidControlFileException {
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154 if (tags == null) {
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155 tags = new HgTags(this);
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156 HgDataFile hgTags = getFileNode(".hgtags");
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157 if (hgTags.exists()) {
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158 for (int i = 0; i <= hgTags.getLastRevision(); i++) { // FIXME in fact, would be handy to have walk(start,end)
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159 // method for data files as well, though it looks odd.
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160 try {
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161 ByteArrayChannel sink = new ByteArrayChannel();
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162 hgTags.content(i, sink);
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163 final String content = new String(sink.toArray(), "UTF8");
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164 tags.readGlobal(new StringReader(content));
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165 } catch (CancelledException ex) {
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166 // IGNORE, can't happen, we did not configure cancellation
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167 getContext().getLog().debug(getClass(), ex, null);
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168 } catch (HgDataStreamException ex) {
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169 getContext().getLog().error(getClass(), ex, null);
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170 // FIXME need to react
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171 } catch (IOException ex) {
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172 // UnsupportedEncodingException can't happen (UTF8)
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173 // only from readGlobal. Need to reconsider exceptions thrown from there:
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174 // BufferedReader wraps String and unlikely to throw IOException, perhaps, log is enough?
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175 getContext().getLog().error(getClass(), ex, null);
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176 // XXX need to decide what to do this. failure to read single revision shall not break complete cycle
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177 }
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178 }
318
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179 }
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180 File file2read = null;
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181 try {
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182 file2read = new File(getWorkingDir(), ".hgtags");
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183 tags.readGlobal(file2read); // XXX replace with HgDataFile.workingCopy
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184 file2read = new File(repoDir, "localtags");
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185 tags.readLocal(file2read);
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186 } catch (IOException ex) {
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187 getContext().getLog().error(getClass(), ex, null);
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188 throw new HgInvalidControlFileException("Failed to read tags", ex, file2read);
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189 }
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190 }
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191 return tags;
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192 }
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193
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194 public HgBranches getBranches() throws HgInvalidControlFileException {
220
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195 if (branches == null) {
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196 branches = new HgBranches(this);
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197 branches.collect(ProgressSupport.Factory.get(null));
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198 }
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199 return branches;
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200 }
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201
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202 @Experimental(reason="Perhaps, shall not cache instance, and provide loadMergeState as it may change often")
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203 public HgMergeState getMergeState() {
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204 if (mergeState == null) {
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205 mergeState = new HgMergeState(this);
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206 }
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207 return mergeState;
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208 }
220
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209
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210 public HgDataFile getFileNode(String path) {
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211 CharSequence nPath = normalizePath.rewrite(path);
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212 CharSequence storagePath = dataPathHelper.rewrite(nPath);
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213 RevlogStream content = resolve(Path.create(storagePath), false);
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214 Path p = Path.create(nPath);
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215 if (content == null) {
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216 return new HgDataFile(this, p);
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217 }
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218 return new HgDataFile(this, p, content);
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219 }
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220
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221 public HgDataFile getFileNode(Path path) {
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222 CharSequence storagePath = dataPathHelper.rewrite(path.toString());
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223 RevlogStream content = resolve(Path.create(storagePath), false);
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224 // XXX no content when no file? or HgDataFile.exists() to detect that?
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225 if (content == null) {
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226 return new HgDataFile(this, path);
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227 }
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228 return new HgDataFile(this, path, content);
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229 }
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230
142
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231 /* clients need to rewrite path from their FS to a repository-friendly paths, and, perhaps, vice versa*/
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232 public PathRewrite getToRepoPathHelper() {
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233 return normalizePath;
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234 }
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235
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236 /**
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237 * @return pair of values, {@link Pair#first()} and {@link Pair#second()} are respective parents, never <code>null</code>.
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238 * @throws HgInvalidControlFileException if attempt to read information about working copy parents from dirstate failed
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239 */
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diff changeset
240 public Pair<Nodeid,Nodeid> getWorkingCopyParents() throws HgInvalidControlFileException {
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241 return HgDirstate.readParents(this, new File(repoDir, "dirstate"));
235
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242 }
252
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243
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244 /**
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245 * @return name of the branch associated with working directory, never <code>null</code>.
348
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246 * @throws HgInvalidControlFileException if attempt to read branch name failed.
252
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247 */
348
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248 public String getWorkingCopyBranchName() throws HgInvalidControlFileException {
284
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249 return HgDirstate.readBranch(this);
252
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250 }
2
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251
237
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252 /**
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253 * @return location where user files (shall) reside
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254 */
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255 public File getWorkingDir() {
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256 return workingDir;
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257 }
239
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258
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259 /**
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260 * Provides access to sub-repositories defined in this repository. Enumerated sub-repositories are those directly
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261 * known, not recursive collection of all nested sub-repositories.
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262 * @return list of all known sub-repositories in this repository, or empty list if none found.
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263 */
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264 public List<HgSubrepoLocation> getSubrepositories() throws HgInvalidControlFileException {
239
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265 if (subRepos == null) {
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266 subRepos = new SubrepoManager(this);
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267 subRepos.read();
239
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268 }
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269 return subRepos.all();
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270 }
237
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271
331
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272
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273 public HgRepoConfig getConfiguration() /* XXX throws HgInvalidControlFileException? Description of the exception suggests it is only for files under ./hg/*/ {
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274 if (repoConfig == null) {
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275 try {
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276 ConfigFile configFile = impl.readConfiguration(this, getRepositoryRoot());
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277 repoConfig = new HgRepoConfig(configFile);
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278 } catch (IOException ex) {
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279 String m = "Errors while reading user configuration file";
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280 getContext().getLog().warn(getClass(), ex, m);
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281 return new HgRepoConfig(new ConfigFile()); // empty config, do not cache, allow to try once again
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282 //throw new HgInvalidControlFileException(m, ex, null);
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283 }
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284 }
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285 return repoConfig;
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286 }
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287
237
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288 // shall be of use only for internal classes
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289 /*package-local*/ File getRepositoryRoot() {
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290 return repoDir;
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291 }
337
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292
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293 // FIXME remove once NPE in HgWorkingCopyStatusCollector.areTheSame is solved
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294 /*package-local, debug*/String getStoragePath(HgDataFile df) {
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295 return dataPathHelper.rewrite(df.getPath().toString()).toString();
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296 }
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297
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298 // 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)
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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299 // XXX consider passing Path pool or factory to produce (shared) Path instead of Strings
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300 /*package-local*/ final HgDirstate loadDirstate(PathPool pathPool) throws HgInvalidControlFileException {
292
a415fe296a50 Refactor PathRewrite to accept any char sequence, not only string
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301 PathRewrite canonicalPath = null;
388
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302 if (!impl.isCaseSensitiveFileSystem()) {
292
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diff changeset
303 canonicalPath = new PathRewrite() {
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304
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305 public CharSequence rewrite(CharSequence path) {
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diff changeset
306 return path.toString().toLowerCase();
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diff changeset
307 }
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diff changeset
308 };
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diff changeset
309 }
348
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diff changeset
310 HgDirstate ds = new HgDirstate(this, new File(repoDir, "dirstate"), pathPool, canonicalPath);
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311 ds.read();
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312 return ds;
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313 }
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314
289
086a326f181f Provide public access to ignored files configuration to use in alternative file walkers
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315 /**
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diff changeset
316 * Access to configured set of ignored files.
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317 * @see HgIgnore#isIgnored(Path)
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diff changeset
318 */
335
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diff changeset
319 public HgIgnore getIgnore() /*throws HgInvalidControlFileException */{
91
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320 // TODO read config for additional locations
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321 if (ignore == null) {
409
0f5696623512 Support glob path pattern rewrite to facilitate use of globs with Windows path separator
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diff changeset
322 ignore = new HgIgnore(getToRepoPathHelper());
335
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323 File ignoreFile = new File(getWorkingDir(), ".hgignore");
91
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diff changeset
324 try {
335
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diff changeset
325 final List<String> errors = ignore.read(ignoreFile);
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diff changeset
326 if (errors != null) {
407
30922c728341 Better multiline log printout; options to tune default log output
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diff changeset
327 getContext().getLog().warn(getClass(), "Syntax errors parsing .hgignore:\n%s", Internals.join(errors, ",\n"));
335
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diff changeset
328 }
91
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329 } catch (IOException ex) {
335
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diff changeset
330 final String m = "Error reading .hgignore file";
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diff changeset
331 getContext().getLog().warn(getClass(), ex, m);
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332 // throw new HgInvalidControlFileException(m, ex, ignoreFile);
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333 }
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334 }
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335 return ignore;
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336 }
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337
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338 /*package-local*/ DataAccessProvider getDataAccess() {
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339 return dataAccess;
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340 }
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diff changeset
341
2
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342 /**
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343 * Perhaps, should be separate interface, like ContentLookup
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344 * path - repository storage path (i.e. one usually with .i or .d)
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diff changeset
345 */
202
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diff changeset
346 /*package-local*/ RevlogStream resolve(Path path, boolean shallFakeNonExistent) {
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diff changeset
347 final SoftReference<RevlogStream> ref = streamsCache.get(path);
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348 RevlogStream cached = ref == null ? null : ref.get();
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diff changeset
349 if (cached != null) {
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350 return cached;
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351 }
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diff changeset
352 File f = new File(repoDir, path.toString());
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diff changeset
353 if (f.exists()) {
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diff changeset
354 RevlogStream s = new RevlogStream(dataAccess, f);
388
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diff changeset
355 if (impl.shallCacheRevlogs()) {
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356 streamsCache.put(path, new SoftReference<RevlogStream>(s));
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diff changeset
357 }
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diff changeset
358 return s;
202
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diff changeset
359 } else {
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diff changeset
360 if (shallFakeNonExistent) {
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diff changeset
361 try {
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diff changeset
362 File fake = File.createTempFile(f.getName(), null);
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diff changeset
363 fake.deleteOnExit();
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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364 return new RevlogStream(dataAccess, fake);
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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365 } catch (IOException ex) {
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981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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366 getContext().getLog().info(getClass(), ex, null);
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>
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367 }
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
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368 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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369 }
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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370 return null; // XXX empty stream instead?
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
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371 }
114
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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372
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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373 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) {
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parents: 104
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374 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo));
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
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375 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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376
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parents: 104
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377 /*package-local*/ List<Filter> getFiltersFromWorkingDirToRepo(Path p) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
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378 return instantiateFilters(p, new Filter.Options(Filter.Direction.ToRepo));
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
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379 }
237
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 235
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380
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 235
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381 /*package-local*/ File getFile(HgDataFile dataFile) {
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 235
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382 return new File(getWorkingDir(), dataFile.getPath().toString());
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 235
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383 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 292
diff changeset
384
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 292
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385 /*package-local*/ SessionContext getContext() {
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386 return sessionContext;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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parents: 292
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387 }
114
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
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388
46291ec605a0 Filters to read and initialize according to configuration files
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389 private List<Filter> instantiateFilters(Path p, Filter.Options opts) {
331
a37ce7145c3f Access to repository configuration
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parents: 318
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390 List<Filter.Factory> factories = impl.getFilters(this);
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parents: 104
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391 if (factories.isEmpty()) {
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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392 return Collections.emptyList();
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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393 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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394 ArrayList<Filter> rv = new ArrayList<Filter>(factories.size());
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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395 for (Filter.Factory ff : factories) {
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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396 Filter f = ff.create(p, opts);
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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397 if (f != null) {
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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398 rv.add(f);
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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399 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
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400 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
401 return rv;
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
402 }
0
dbd663faec1f Basic changelog parsing
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
403 }