Mercurial > jhg

annotate src/org/tmatesoft/hg/repo/HgRepository.java @ 526:2f9ed6bcefa2

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Initial support for Revert command with accompanying minor refactoring
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Jan 2013 17:07:19 +0100
parents bf352ce2b97f
children 9edfd5a223b8
rev   line source
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382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
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1 /*
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2 * Copyright (c) 2010-2013 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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6c67debed07e Distinguish files in wc from files under repo root, use these constants
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19 import static org.tmatesoft.hg.repo.HgRepositoryFiles.*;
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20 import static org.tmatesoft.hg.util.LogFacility.Severity.*;
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22 import java.io.File;
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23 import java.io.FileReader;
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24 import java.io.IOException;
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25 import java.io.StringReader;
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26 import java.lang.ref.SoftReference;
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27 import java.nio.CharBuffer;
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28 import java.util.ArrayList;
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29 import java.util.Collections;
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30 import java.util.HashMap;
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31 import java.util.List;
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33 import org.tmatesoft.hg.core.Nodeid;
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34 import org.tmatesoft.hg.core.SessionContext;
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35 import org.tmatesoft.hg.internal.ByteArrayChannel;
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36 import org.tmatesoft.hg.internal.ConfigFile;
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37 import org.tmatesoft.hg.internal.DirstateReader;
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d740edfff563 Provisional support for Mercurial lock mechanism
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38 import org.tmatesoft.hg.internal.Experimental;
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39 import org.tmatesoft.hg.internal.Filter;
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30922c728341 Better multiline log printout; options to tune default log output
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40 import org.tmatesoft.hg.internal.Internals;
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41 import org.tmatesoft.hg.internal.PropertyMarshal;
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c677e1593919 Moved RevlogStream implementation into .internal
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42 import org.tmatesoft.hg.internal.RevlogStream;
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43 import org.tmatesoft.hg.internal.SubrepoManager;
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44 import org.tmatesoft.hg.repo.ext.HgExtensionsManager;
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45 import org.tmatesoft.hg.util.CancelledException;
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46 import org.tmatesoft.hg.util.Pair;
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47 import org.tmatesoft.hg.util.Path;
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48 import org.tmatesoft.hg.util.PathRewrite;
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49 import org.tmatesoft.hg.util.ProgressSupport;
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a3576694a4d1 Repository detection from local/specified directory
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53 /**
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54 * Shall be as state-less as possible, all the caching happens outside the repo, in commands/walkers
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55 *
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56 * @author Artem Tikhomirov
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57 * @author TMate Software Ltd.
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58 */
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59 public final class HgRepository implements SessionContext.Source {
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61 // IMPORTANT: if new constants added, consider fixing HgInternals#wrongRevisionIndex and HgInvalidRevisionException#getMessage
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63 /**
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64 * Revision index constant to indicate most recent revision
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65 */
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66 public static final int TIP = -3; // XXX TIP_REVISION?
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68 /**
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69 * Revision index constant to indicate invalid revision index value.
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70 * Primary use is default/uninitialized values where user input is expected and as return value where
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71 * an exception (e.g. {@link HgInvalidRevisionException}) is not desired
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72 */
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73 public static final int BAD_REVISION = Integer.MIN_VALUE; // XXX INVALID_REVISION?
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75 /**
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76 * Revision index constant to indicate working copy
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77 */
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78 public static final int WORKING_COPY = -2; // XXX WORKING_COPY_REVISION?
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80 /**
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81 * Constant ({@value #NO_REVISION}) to indicate revision absence or a fictitious revision of an empty repository.
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82 *
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83 * <p>Revision absence is vital e.g. for missing parent from {@link HgChangelog#parents(int, int[], byte[], byte[])} call and
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84 * to report cases when changeset records no corresponding manifest
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85 * revision {@link HgManifest#walk(int, int, org.tmatesoft.hg.repo.HgManifest.Inspector)}.
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86 *
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87 * <p> Use as imaginary revision/empty repository is handy as an argument (contrary to {@link #BAD_REVISION})
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88 * e.g in a status operation to visit changes from the very beginning of a repository.
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89 */
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90 public static final int NO_REVISION = -1;
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92 /**
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93 * Name of the primary branch, "default".
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94 */
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95 public static final String DEFAULT_BRANCH_NAME = "default";
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97 private final File repoDir; // .hg folder
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98 private final File workingDir; // .hg/../
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99 private final String repoLocation;
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100 /*
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101 * normalized slashes but otherwise regular file names
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102 * the only front-end path rewrite, kept here as rest of the library shall
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103 * not bother with names normalization.
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104 */
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105 private final PathRewrite normalizePath;
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106 private final SessionContext sessionContext;
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107
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108 private HgChangelog changelog;
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109 private HgManifest manifest;
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110 private HgTags tags;
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111 private HgBranches branches;
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112 private HgMergeState mergeState;
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113 private SubrepoManager subRepos;
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114 private HgBookmarks bookmarks;
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115 private HgExtensionsManager extManager;
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116
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117 // XXX perhaps, shall enable caching explicitly
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118 private final HashMap<Path, SoftReference<RevlogStream>> streamsCache = new HashMap<Path, SoftReference<RevlogStream>>();
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119
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120 private final org.tmatesoft.hg.internal.Internals impl;
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121 private HgIgnore ignore;
331
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122 private HgRepoConfig repoConfig;
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123
430
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124 /*
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125 * TODO [post-1.0] move to a better place, e.g. WorkingCopy container that tracks both dirstate and branches
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126 * (and, perhaps, undo, lastcommit and other similar information), and is change listener so that we don't need to
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127 * worry about this cached value become stale
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128 */
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129 private String wcBranch;
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130
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131
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132 HgRepository(String repositoryPath) {
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133 repoDir = null;
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134 workingDir = null;
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135 repoLocation = repositoryPath;
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136 normalizePath = null;
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137 sessionContext = null;
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138 impl = null;
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139 }
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140
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141 /**
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142 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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143 */
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144 HgRepository(SessionContext ctx, String repositoryPath, File repositoryRoot) throws HgRuntimeException {
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145 assert ".hg".equals(repositoryRoot.getName()) && repositoryRoot.isDirectory();
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146 assert repositoryPath != null;
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147 assert repositoryRoot != null;
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148 assert ctx != null;
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149 repoDir = repositoryRoot;
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150 workingDir = repoDir.getParentFile();
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151 if (workingDir == null) {
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152 throw new IllegalArgumentException(repoDir.toString());
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153 }
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154 repoLocation = repositoryPath;
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155 sessionContext = ctx;
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156 impl = new org.tmatesoft.hg.internal.Internals(this, repositoryRoot);
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157 normalizePath = impl.buildNormalizePathRewrite();
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158 }
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159
145
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160 @Override
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161 public String toString() {
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162 return getClass().getSimpleName() + "[" + getLocation() + (isInvalid() ? "(BAD)" : "") + "]";
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163 }
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164
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165 /**
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166 * Path to repository which has been used to initialize this instance. The value is always present, even
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167 * if no repository has been found at that location ({@link #isInvalid()} is <code>true</code>) and serves
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168 * as an extra description of the failure.
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169 *
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170 * <p> It's important to understand this is purely descriptive attribute, it's kept as close as possible to
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171 * original value users supply to {@link HgLookup}. To get actual repository location, use methods that
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172 * provide {@link File}, e.g. {@link #getWorkingDir()}
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173 *
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174 * @return repository location information, never <code>null</code>
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175 */
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176 public String getLocation() {
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177 return repoLocation;
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178 }
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179
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180 public boolean isInvalid() {
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181 return impl == null || impl.isInvalid();
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182 }
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183
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184 public HgChangelog getChangelog() {
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185 if (changelog == null) {
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186 File chlogFile = impl.getFileFromStoreDir("00changelog.i");
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187 if (!chlogFile.exists()) {
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188 // fake its existence
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189 chlogFile = fakeNonExistentFile(chlogFile);
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190 }
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191 RevlogStream content = new RevlogStream(impl.getDataAccess(), chlogFile);
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192 changelog = new HgChangelog(this, content);
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193 }
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194 return changelog;
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195 }
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196
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197 public HgManifest getManifest() {
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198 if (manifest == null) {
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199 File manifestFile = impl.getFileFromStoreDir("00manifest.i");
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200 if (!manifestFile.exists()) {
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201 manifestFile = fakeNonExistentFile(manifestFile);
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202 }
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203 RevlogStream content = new RevlogStream(impl.getDataAccess(), manifestFile);
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204 manifest = new HgManifest(this, content, impl.buildFileNameEncodingHelper());
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205 }
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206 return manifest;
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207 }
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208
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209 /**
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210 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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211 */
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212 public HgTags getTags() throws HgInvalidControlFileException {
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213 if (tags == null) {
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214 tags = new HgTags(this);
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215 HgDataFile hgTags = getFileNode(HgTags.getPath());
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216 if (hgTags.exists()) {
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217 for (int i = 0; i <= hgTags.getLastRevision(); i++) { // TODO post-1.0 in fact, would be handy to have walk(start,end)
318
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218 // method for data files as well, though it looks odd.
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219 try {
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220 ByteArrayChannel sink = new ByteArrayChannel();
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221 hgTags.content(i, sink);
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222 final String content = new String(sink.toArray(), "UTF8");
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223 tags.readGlobal(new StringReader(content));
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224 } catch (CancelledException ex) {
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225 // IGNORE, can't happen, we did not configure cancellation
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226 getSessionContext().getLog().dump(getClass(), Debug, ex, null);
318
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227 } catch (IOException ex) {
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228 // UnsupportedEncodingException can't happen (UTF8)
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229 // only from readGlobal. Need to reconsider exceptions thrown from there:
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230 // BufferedReader wraps String and unlikely to throw IOException, perhaps, log is enough?
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231 getSessionContext().getLog().dump(getClass(), Error, ex, null);
318
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232 // XXX need to decide what to do this. failure to read single revision shall not break complete cycle
234
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233 }
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234 }
318
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235 }
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236 File file2read = null;
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237 try {
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238 file2read = new File(getWorkingDir(), HgTags.getPath());
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239 tags.readGlobal(file2read); // XXX replace with HgDataFile.workingCopy
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240 file2read = impl.getFileFromRepoDir(HgLocalTags.getName()); // XXX pass internalrepo to readLocal, keep filename there
318
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241 tags.readLocal(file2read);
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242 } catch (IOException ex) {
490
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243 getSessionContext().getLog().dump(getClass(), Error, ex, null);
318
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244 throw new HgInvalidControlFileException("Failed to read tags", ex, file2read);
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245 }
50
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246 }
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247 return tags;
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248 }
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249
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250 /**
484
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251 * Access branch information
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252 * @return branch manager instance, never <code>null</code>
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253 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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254 */
366
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255 public HgBranches getBranches() throws HgInvalidControlFileException {
220
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256 if (branches == null) {
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257 branches = new HgBranches(impl);
220
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258 branches.collect(ProgressSupport.Factory.get(null));
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259 }
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260 return branches;
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261 }
231
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262
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263 /**
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264 * Access state of the recent merge
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265 * @return merge state facility, never <code>null</code>
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266 */
231
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267 public HgMergeState getMergeState() {
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268 if (mergeState == null) {
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269 mergeState = new HgMergeState(impl);
231
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270 }
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271 return mergeState;
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272 }
220
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273
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274 public HgDataFile getFileNode(String path) {
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275 CharSequence nPath = normalizePath.rewrite(path);
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276 Path p = Path.create(nPath);
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277 return getFileNode(p);
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278 }
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279
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280 public HgDataFile getFileNode(Path path) {
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281 RevlogStream content = resolveStoreFile(path);
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282 if (content == null) {
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283 return new HgDataFile(this, path);
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284 }
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285 return new HgDataFile(this, path, content);
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286 }
2
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287
142
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288 /* clients need to rewrite path from their FS to a repository-friendly paths, and, perhaps, vice versa*/
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289 public PathRewrite getToRepoPathHelper() {
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290 return normalizePath;
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291 }
284
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292
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293 /**
348
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294 * @return pair of values, {@link Pair#first()} and {@link Pair#second()} are respective parents, never <code>null</code>.
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295 * @throws HgInvalidControlFileException if attempt to read information about working copy parents from dirstate failed
284
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296 */
348
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297 public Pair<Nodeid,Nodeid> getWorkingCopyParents() throws HgInvalidControlFileException {
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298 return DirstateReader.readParents(impl);
235
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299 }
252
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300
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301 /**
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302 * @return name of the branch associated with working directory, never <code>null</code>.
348
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303 * @throws HgInvalidControlFileException if attempt to read branch name failed.
252
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304 */
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305 public String getWorkingCopyBranchName() throws HgInvalidControlFileException {
430
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306 if (wcBranch == null) {
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307 wcBranch = DirstateReader.readBranch(impl);
430
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308 }
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309 return wcBranch;
252
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310 }
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311
237
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312 /**
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diff changeset
313 * @return location where user files (shall) reside
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314 */
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diff changeset
315 public File getWorkingDir() {
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316 return workingDir;
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317 }
239
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318
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319 /**
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320 * Provides access to sub-repositories defined in this repository. Enumerated sub-repositories are those directly
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321 * known, not recursive collection of all nested sub-repositories.
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322 * @return list of all known sub-repositories in this repository, or empty list if none found.
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323 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
239
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324 */
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325 public List<HgSubrepoLocation> getSubrepositories() throws HgInvalidControlFileException {
239
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326 if (subRepos == null) {
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327 subRepos = new SubrepoManager(this);
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328 subRepos.read();
239
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329 }
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330 return subRepos.all();
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331 }
237
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diff changeset
332
331
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333
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334 public HgRepoConfig getConfiguration() /* XXX throws HgInvalidControlFileException? Description of the exception suggests it is only for files under ./hg/*/ {
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335 if (repoConfig == null) {
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336 try {
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337 ConfigFile configFile = impl.readConfiguration();
331
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338 repoConfig = new HgRepoConfig(configFile);
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339 } catch (IOException ex) {
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340 String m = "Errors while reading user configuration file";
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341 getSessionContext().getLog().dump(getClass(), Warn, ex, m);
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342 return new HgRepoConfig(new ConfigFile(getSessionContext())); // empty config, do not cache, allow to try once again
331
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343 //throw new HgInvalidControlFileException(m, ex, null);
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344 }
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345 }
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346 return repoConfig;
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347 }
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diff changeset
348
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349 // There seem to be no cases when access to HgDirstate is required from outside
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350 // (guess, working dir/revision walkers may hide dirstate access and no public visibility needed)
431
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diff changeset
351 /*package-local*/ final HgDirstate loadDirstate(Path.Source pathFactory) throws HgInvalidControlFileException {
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diff changeset
352 PathRewrite canonicalPath = null;
388
b015f3918120 Work on FIXME: correct HgDataFile#workingCopy with tests; BasicSessionContext with property override; platform-specific options to internals
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parents: 367
diff changeset
353 if (!impl.isCaseSensitiveFileSystem()) {
292
a415fe296a50 Refactor PathRewrite to accept any char sequence, not only string
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parents: 289
diff changeset
354 canonicalPath = new PathRewrite() {
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parents: 289
diff changeset
355
a415fe296a50 Refactor PathRewrite to accept any char sequence, not only string
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diff changeset
356 public CharSequence rewrite(CharSequence path) {
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diff changeset
357 return path.toString().toLowerCase();
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diff changeset
358 }
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diff changeset
359 };
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diff changeset
360 }
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
361 HgDirstate ds = new HgDirstate(impl, pathFactory, canonicalPath);
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diff changeset
362 ds.read();
348
a0864b2892cd Expose errors reading mercurial control files with exception
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parents: 337
diff changeset
363 return ds;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
diff changeset
364 }
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
diff changeset
365
289
086a326f181f Provide public access to ignored files configuration to use in alternative file walkers
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diff changeset
366 /**
086a326f181f Provide public access to ignored files configuration to use in alternative file walkers
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367 * Access to configured set of ignored files.
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368 * @see HgIgnore#isIgnored(Path)
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
369 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
289
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370 */
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
371 public HgIgnore getIgnore() throws HgInvalidControlFileException {
91
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
372 // TODO read config for additional locations
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diff changeset
373 if (ignore == null) {
409
0f5696623512 Support glob path pattern rewrite to facilitate use of globs with Windows path separator
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parents: 407
diff changeset
374 ignore = new HgIgnore(getToRepoPathHelper());
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
375 File ignoreFile = new File(getWorkingDir(), HgIgnore.getPath());
91
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
376 try {
335
3d41dc148d14 Do not fail with exception on syntax errors in .hgignore
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diff changeset
377 final List<String> errors = ignore.read(ignoreFile);
3d41dc148d14 Do not fail with exception on syntax errors in .hgignore
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parents: 331
diff changeset
378 if (errors != null) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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diff changeset
379 getSessionContext().getLog().dump(getClass(), Warn, "Syntax errors parsing %s:\n%s", ignoreFile.getName(), Internals.join(errors, ",\n"));
335
3d41dc148d14 Do not fail with exception on syntax errors in .hgignore
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diff changeset
380 }
91
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diff changeset
381 } catch (IOException ex) {
482
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diff changeset
382 final String m = String.format("Error reading %s file", ignoreFile);
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
383 throw new HgInvalidControlFileException(m, ex, ignoreFile);
91
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384 }
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parents: 77
diff changeset
385 }
c2ce1cfaeb9e ignore file with regex and 'honest' glob support
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diff changeset
386 return ignore;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
387 }
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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parents: 481
diff changeset
388
481
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
389 /**
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
390 * Mercurial saves message user has supplied for a commit to facilitate message re-use in case commit fails.
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
391 * This method provides this saved message.
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
392 *
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
393 * @return message used for last commit attempt, or <code>null</code> if none
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
394 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
481
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
395 */
482
6c67debed07e Distinguish files in wc from files under repo root, use these constants
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diff changeset
396 public String getCommitLastMessage() throws HgInvalidControlFileException {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
397 File lastMessage = impl.getFileFromRepoDir(LastMessage.getPath());
481
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
398 if (!lastMessage.canRead()) {
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
399 return null;
a458f9fb00ce Access to user-supplied message of last commit
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parents: 471
diff changeset
400 }
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
401 FileReader fr = null;
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
402 try {
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
403 fr = new FileReader(lastMessage);
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
404 CharBuffer cb = CharBuffer.allocate(Internals.ltoi(lastMessage.length()));
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
405 fr.read(cb);
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
406 return cb.flip().toString();
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
407 } catch (IOException ex) {
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
408 throw new HgInvalidControlFileException("Can't retrieve message of last commit attempt", ex, lastMessage);
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
409 } finally {
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
410 if (fr != null) {
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
411 try {
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
412 fr.close();
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
413 } catch (IOException ex) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 488
diff changeset
414 getSessionContext().getLog().dump(getClass(), Warn, "Failed to close %s after read", lastMessage);
481
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
415 }
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
416 }
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
417 }
a458f9fb00ce Access to user-supplied message of last commit
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 471
diff changeset
418 }
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
419
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
420 private HgRepositoryLock wdLock, storeLock;
486
d740edfff563 Provisional support for Mercurial lock mechanism
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parents: 484
diff changeset
421
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
422 /**
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
423 * PROVISIONAL CODE, DO NOT USE
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
424 *
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
425 * Access repository lock that covers non-store parts of the repository (dirstate, branches, etc -
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
426 * everything that has to do with working directory state).
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
427 *
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
428 * Note, the lock object returned merely gives access to lock mechanism. NO ACTUAL LOCKING IS DONE.
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
429 * Use {@link HgRepositoryLock#acquire()} to actually lock the repository.
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
430 *
d740edfff563 Provisional support for Mercurial lock mechanism
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parents: 484
diff changeset
431 * @return lock object, never <code>null</code>
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
432 */
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
433 @Experimental(reason="WORK IN PROGRESS")
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
434 public HgRepositoryLock getWorkingDirLock() {
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
435 if (wdLock == null) {
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
436 int timeout = getLockTimeout();
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 488
diff changeset
437 File lf = impl.getFileFromRepoDir("wlock");
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
438 synchronized (this) {
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
439 if (wdLock == null) {
488
45b3b6ca046f Repository locking mechanism is alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 487
diff changeset
440 wdLock = new HgRepositoryLock(lf, timeout);
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
441 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
442 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
443 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
444 return wdLock;
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
445 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
446
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
447 @Experimental(reason="WORK IN PROGRESS")
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
448 public HgRepositoryLock getStoreLock() {
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
449 if (storeLock == null) {
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
450 int timeout = getLockTimeout();
493
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 491
diff changeset
451 File fl = impl.getFileFromStoreDir("lock");
486
d740edfff563 Provisional support for Mercurial lock mechanism
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parents: 484
diff changeset
452 synchronized (this) {
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
453 if (storeLock == null) {
488
45b3b6ca046f Repository locking mechanism is alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 487
diff changeset
454 storeLock = new HgRepositoryLock(fl, timeout);
486
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
455 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
456 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
457 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
458 return storeLock;
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
459 }
d740edfff563 Provisional support for Mercurial lock mechanism
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 484
diff changeset
460
484
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
461 /**
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
462 * Access bookmarks-related functionality
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
463 * @return facility to manage bookmarks, never <code>null</code>
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
464 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
465 */
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
466 public HgBookmarks getBookmarks() throws HgInvalidControlFileException {
ae4d6604debd Bookmarks support added
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parents: 483
diff changeset
467 if (bookmarks == null) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 488
diff changeset
468 bookmarks = new HgBookmarks(impl);
484
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
469 bookmarks.read();
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
470 }
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
471 return bookmarks;
ae4d6604debd Bookmarks support added
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 483
diff changeset
472 }
501
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
473
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
474 public HgExtensionsManager getExtensions() {
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
475 if (extManager == null) {
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
476 class EM extends HgExtensionsManager {
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
477 EM() {
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 493
diff changeset
478 super(HgRepository.this.getImplHelper());
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parents: 493
diff changeset
479 }
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480 }
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diff changeset
481 extManager = new EM();
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diff changeset
482 }
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diff changeset
483 return extManager;
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diff changeset
484 }
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6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
485
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
486 /**
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
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487 * @return session environment of the repository
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parents: 488
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488 */
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
489 public SessionContext getSessionContext() {
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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490 return sessionContext;
74
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491 }
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492
2
08db726a0fb7 Shaping out low-level Hg structures
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parents: 1
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493 /**
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 1
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494 * Perhaps, should be separate interface, like ContentLookup
493
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 491
diff changeset
495 * @param path - normalized file name
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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parents: 491
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496 * @return <code>null</code> if path doesn't resolve to a existing file
2
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parents: 1
diff changeset
497 */
493
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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parents: 491
diff changeset
498 /*package-local*/ RevlogStream resolveStoreFile(Path path) {
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parents: 68
diff changeset
499 final SoftReference<RevlogStream> ref = streamsCache.get(path);
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diff changeset
500 RevlogStream cached = ref == null ? null : ref.get();
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diff changeset
501 if (cached != null) {
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diff changeset
502 return cached;
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503 }
493
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parents: 491
diff changeset
504 File f = impl.getFileFromDataDir(path);
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diff changeset
505 if (f.exists()) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
506 RevlogStream s = new RevlogStream(impl.getDataAccess(), f);
388
b015f3918120 Work on FIXME: correct HgDataFile#workingCopy with tests; BasicSessionContext with property override; platform-specific options to internals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
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507 if (impl.shallCacheRevlogs()) {
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parents: 367
diff changeset
508 streamsCache.put(path, new SoftReference<RevlogStream>(s));
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509 }
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510 return s;
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511 }
493
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diff changeset
512 return null;
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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513 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 491
diff changeset
514
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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diff changeset
515 private File fakeNonExistentFile(File expected) throws HgInvalidFileException {
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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diff changeset
516 try {
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diff changeset
517 File fake = File.createTempFile(expected.getName(), null);
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diff changeset
518 fake.deleteOnExit();
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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519 return fake;
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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diff changeset
520 } catch (IOException ex) {
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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diff changeset
521 getSessionContext().getLog().dump(getClass(), Info, ex, null);
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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diff changeset
522 throw new HgInvalidFileException(String.format("Failed to fake existence of file %s", expected), ex);
ba36f66c32b4 Refactor to keep knowledge about repository control files and their location in respect to .hg/ in a single place (facilitate future adoption of shared repositories)
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523 }
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524 }
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diff changeset
525
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diff changeset
526 /*package-local*/ List<Filter> getFiltersFromRepoToWorkingDir(Path p) {
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
527 return instantiateFilters(p, new Filter.Options(Filter.Direction.FromRepo));
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528 }
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diff changeset
529
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diff changeset
530 /*package-local*/ List<Filter> getFiltersFromWorkingDirToRepo(Path p) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
531 return instantiateFilters(p, new Filter.Options(Filter.Direction.ToRepo));
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diff changeset
532 }
237
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
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parents: 235
diff changeset
533
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
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parents: 235
diff changeset
534 /*package-local*/ File getFile(HgDataFile dataFile) {
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
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parents: 235
diff changeset
535 return new File(getWorkingDir(), dataFile.getPath().toString());
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
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diff changeset
536 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 292
diff changeset
537
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 409
diff changeset
538 /*package-local*/ Internals getImplHelper() {
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 409
diff changeset
539 return impl;
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
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parents: 409
diff changeset
540 }
114
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diff changeset
541
46291ec605a0 Filters to read and initialize according to configuration files
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diff changeset
542 private List<Filter> instantiateFilters(Path p, Filter.Options opts) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
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parents: 488
diff changeset
543 List<Filter.Factory> factories = impl.getFilters();
114
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diff changeset
544 if (factories.isEmpty()) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
545 return Collections.emptyList();
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
546 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
547 ArrayList<Filter> rv = new ArrayList<Filter>(factories.size());
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
548 for (Filter.Factory ff : factories) {
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
549 Filter f = ff.create(p, opts);
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
550 if (f != null) {
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
551 rv.add(f);
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parents: 104
diff changeset
552 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
553 }
46291ec605a0 Filters to read and initialize according to configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 104
diff changeset
554 return rv;
46291ec605a0 Filters to read and initialize according to configuration files
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parents: 104
diff changeset
555 }
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
556
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
557 private int getLockTimeout() {
504
bf352ce2b97f Allow to override lock timeout from within Hg4J
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
558 int cfgValue = getConfiguration().getIntegerValue("ui", "timeout", 600);
bf352ce2b97f Allow to override lock timeout from within Hg4J
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
559 if (getSessionContext().getConfigurationProperty(Internals.CFG_PROPERTY_FS_LOCK_TIMEOUT, null) != null) {
bf352ce2b97f Allow to override lock timeout from within Hg4J
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
560 return new PropertyMarshal(sessionContext).getInt(Internals.CFG_PROPERTY_FS_LOCK_TIMEOUT, cfgValue);
bf352ce2b97f Allow to override lock timeout from within Hg4J
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
561 }
bf352ce2b97f Allow to override lock timeout from within Hg4J
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
562 return cfgValue;
487
db48a77ec8ff Access to reposiotry lock mechanism via HgRepositoryLock
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 486
diff changeset
563 }
0
dbd663faec1f Basic changelog parsing
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
564 }