Mercurial > hg4j

annotate src/org/tmatesoft/hg/internal/Internals.java @ 617:65c01508f002

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Rollback support for commands that modify repository. Strategy to keep complete copy of a file being changed
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 15 May 2013 20:10:09 +0200
parents 5c68567b3645
children 99ad1e3a4e4d
rev   line source
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1 /*
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2 * Copyright (c) 2011-2013 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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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.internal;
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19 import static org.tmatesoft.hg.util.LogFacility.Severity.Error;
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20
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21 import java.io.File;
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22 import java.io.IOException;
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23 import java.nio.charset.Charset;
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24 import java.util.ArrayList;
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25 import java.util.Arrays;
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26 import java.util.Collections;
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27 import java.util.Iterator;
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28 import java.util.LinkedHashSet;
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29 import java.util.List;
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30 import java.util.StringTokenizer;
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31
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32 import org.tmatesoft.hg.core.SessionContext;
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33 import org.tmatesoft.hg.repo.HgDataFile;
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34 import org.tmatesoft.hg.repo.HgInternals;
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35 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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36 import org.tmatesoft.hg.repo.HgRepoConfig.ExtensionsSection;
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37 import org.tmatesoft.hg.repo.HgRepository;
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38 import org.tmatesoft.hg.repo.HgRepositoryFiles;
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39 import org.tmatesoft.hg.repo.HgRepositoryLock;
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40 import org.tmatesoft.hg.repo.HgRuntimeException;
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41 import org.tmatesoft.hg.util.LogFacility;
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42 import org.tmatesoft.hg.util.Path;
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43 import org.tmatesoft.hg.util.PathRewrite;
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45 /**
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46 * Fields/members that shall not be visible
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47 *
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48 * @author Artem Tikhomirov
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49 * @author TMate Software Ltd.
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50 */
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51 public final class Internals implements SessionContext.Source {
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52
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53 /**
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54 * Allows to specify Mercurial installation directory to detect installation-wide configurations.
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55 * Without this property set, hg4j would attempt to deduce this value locating hg executable.
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56 */
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57 public static final String CFG_PROPERTY_HG_INSTALL_ROOT = "hg4j.hg.install_root";
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59 /**
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60 * Tells repository not to cache files/revlogs
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61 * XXX perhaps, need to respect this property not only for data files, but for manifest and changelog as well?
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62 * (@see HgRepository#getChangelog and #getManifest())
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63 */
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64 public static final String CFG_PROPERTY_REVLOG_STREAM_CACHE = "hg4j.repo.disable_revlog_cache";
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65
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66 /**
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67 * Name of charset to use when translating Unicode filenames to Mercurial storage paths, string,
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68 * to resolve with {@link Charset#forName(String)}.
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69 * E.g. <code>"cp1251"</code> or <code>"Latin-1"</code>.
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70 *
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71 * <p>Mercurial uses system encoding when mangling storage paths. Default value
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72 * based on 'file.encoding' Java system property is usually fine here, however
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73 * in certain scenarios it may be desirable to force a different one, and this
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74 * property is exactly for this purpose.
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75 *
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76 * <p>E.g. Eclipse defaults to project encoding (Launch config, Common page) when launching an application,
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77 * and if your project happen to use anything but filesystem default (say, UTF8 on cp1251 system),
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78 * native storage paths won't match
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79 */
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80 public static final String CFG_PROPERTY_FS_FILENAME_ENCODING = "hg.fs.filename.encoding";
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81
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82 /**
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83 * Timeout, in seconds, to acquire filesystem {@link HgRepositoryLock lock}.
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84 *
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85 * Mercurial provides 'ui.timeout' in hgrc (defaults to 600 seconds) to specify how long
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86 * it shall try to acquire a lock for storage or working directory prior to fail.
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87 *
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88 * This configuration property allows to override timeout value from Mercurial's configuration
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89 * file and use Hg4J-specific value instead.
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90 *
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91 * Integer value, use negative for attempts to acquire lock until success, and zero to try once and fail immediately.
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92 */
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93 public static final String CFG_PROPERTY_FS_LOCK_TIMEOUT = "hg4j.fs.lock.timeout";
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94
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95 /**
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96 * Alternative, more effective approach to build revision text from revlog patches - collect all the
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97 * patches one by one, starting at revision next to base, and apply against each other to get
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98 * one final patch, which in turned is applied to base revision.
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99 * <p>
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100 * Original approach is to apply each patch to a previous revision, so that with base revision
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101 * of 1M and three patches, each altering just a tiny fraction
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102 * of the origin, with latter approach we consume 1M (original) + 1M (first patch applied) + 1M (second
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103 * patch applied) + 1M (third patch applied).
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104 * <p>
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105 * Alternative approach, controlled with this option, first combines these there patches into one,
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106 * and only then applies it to base revision, eliminating 2 intermediate elements.
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107 * <p>
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108 * Present default value for this option is <b>FALSE</b>, and will be changed in future, once
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109 * tests prove support is fully functional (likely in v1.2).
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110 *
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111 * @since 1.1
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112 */
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113 public static final String CFG_PROPERTY_PATCH_MERGE = "hg4j.repo.merge_revlog_patches";
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115 public static final int REVLOGV1_RECORD_SIZE = 64;
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116
114
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117 private List<Filter.Factory> filterFactories;
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118 private final HgRepository repo;
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119 private final File repoDir;
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120 private final boolean isCaseSensitiveFileSystem;
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121 private final DataAccessProvider dataAccess;
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122 private final ImplAccess implAccess;
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123
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124 private final int requiresFlags;
114
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125
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126 private final PathRewrite dataPathHelper; // access to file storage area (usually under .hg/store/data/), with filenames mangled
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127 private final PathRewrite repoPathHelper; // access to system files (under .hg/store if requires has 'store' flag)
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128
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129 private final boolean shallMergePatches;
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130 private final RevlogStreamFactory streamProvider;
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132 public Internals(HgRepository hgRepo, File hgDir, ImplAccess implementationAccess) throws HgRuntimeException {
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133 repo = hgRepo;
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134 repoDir = hgDir;
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135 implAccess = implementationAccess;
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136 isCaseSensitiveFileSystem = !runningOnWindows();
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137 SessionContext ctx = repo.getSessionContext();
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138 dataAccess = new DataAccessProvider(ctx);
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139 RepoInitializer repoInit = new RepoInitializer().initRequiresFromFile(repoDir);
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140 requiresFlags = repoInit.getRequires();
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141 dataPathHelper = repoInit.buildDataFilesHelper(getSessionContext());
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142 repoPathHelper = repoInit.buildStoreFilesHelper();
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143 final PropertyMarshal pm = new PropertyMarshal(ctx);
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144 boolean shallCacheRevlogsInRepo = pm.getBoolean(CFG_PROPERTY_REVLOG_STREAM_CACHE, true);
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145 streamProvider = new RevlogStreamFactory(this, shallCacheRevlogsInRepo);
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146 shallMergePatches = pm.getBoolean(Internals.CFG_PROPERTY_PATCH_MERGE, false);
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147 }
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148
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149 public boolean isInvalid() {
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150 return !repoDir.exists() || !repoDir.isDirectory();
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151 }
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152
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153 public File getRepositoryFile(HgRepositoryFiles f) {
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154 return f.residesUnderRepositoryRoot() ? getFileFromRepoDir(f.getName()) : new File(repo.getWorkingDir(), f.getName());
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155 }
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156
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157 /**
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158 * Access files under ".hg/".
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159 * File not necessarily exists, this method is merely a factory for Files at specific, configuration-dependent location.
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160 *
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161 * @param name shall be normalized path
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162 */
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163 public File getFileFromRepoDir(String name) {
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164 return new File(repoDir, name);
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165 }
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166
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167 /**
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168 * Access files under ".hg/store/" or ".hg/" depending on use of 'store' in requires.
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169 * File not necessarily exists, this method is merely a factory for Files at specific, configuration-dependent location.
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170 *
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171 * @param name shall be normalized path
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172 */
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173 public File getFileFromStoreDir(String name) {
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174 CharSequence location = repoPathHelper.rewrite(name);
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175 return new File(repoDir, location.toString());
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176 }
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177
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178 /**
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179 * Access files under ".hg/store/data", ".hg/store/dh/" or ".hg/data" according to settings in requires file.
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180 * File not necessarily exists, this method is merely a factory for Files at specific, configuration-dependent location.
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181 *
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182 * @param name shall be normalized path, without .i or .d suffixes
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183 */
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184 public File getFileFromDataDir(CharSequence path) {
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185 CharSequence storagePath = dataPathHelper.rewrite(path);
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186 return new File(repoDir, storagePath.toString());
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187 }
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188
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189 public SessionContext getSessionContext() {
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190 return repo.getSessionContext();
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191 }
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192
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193 public LogFacility getLog() {
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194 return getSessionContext().getLog();
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195 }
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196
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197 public HgRepository getRepo() {
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198 return repo;
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199 }
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200
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201 public DataAccessProvider getDataAccess() {
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202 return dataAccess;
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203 }
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204
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205 public PathRewrite buildNormalizePathRewrite() {
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206 if (runningOnWindows()) {
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207 return new WinToNixPathRewrite();
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208 } else {
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209 return new PathRewrite.Empty(); // or strip leading slash, perhaps?
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210 }
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211 }
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212
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213 public List<Filter.Factory> getFilters() {
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214 if (filterFactories == null) {
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215 filterFactories = new ArrayList<Filter.Factory>();
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216 ExtensionsSection cfg = repo.getConfiguration().getExtensions();
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217 if (cfg.isEnabled("eol")) {
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218 NewlineFilter.Factory ff = new NewlineFilter.Factory();
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219 ff.initialize(repo);
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220 filterFactories.add(ff);
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221 }
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222 if (cfg.isEnabled("keyword")) {
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223 KeywordFilter.Factory ff = new KeywordFilter.Factory();
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224 ff.initialize(repo);
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225 filterFactories.add(ff);
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226 }
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227 }
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228 return filterFactories;
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229 }
202
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230
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231 public boolean isCaseSensitiveFileSystem() {
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232 return isCaseSensitiveFileSystem;
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233 }
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234
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235 public EncodingHelper buildFileNameEncodingHelper() {
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236 return new EncodingHelper(getFilenameEncoding(), repo.getSessionContext());
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237 }
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238
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239 public boolean fncacheInUse() {
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240 return (getRequiresFlags() & RequiresFile.FNCACHE) != 0;
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241 }
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242
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243 /*package-local*/ Charset getFilenameEncoding() {
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244 return getFileEncoding(getSessionContext());
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245 }
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246
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247 /*package-local*/ static Charset getFileEncoding(SessionContext ctx) {
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248 Object altEncoding = ctx.getConfigurationProperty(CFG_PROPERTY_FS_FILENAME_ENCODING, null);
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249 Charset cs;
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250 if (altEncoding == null) {
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251 cs = Charset.defaultCharset();
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252 } else {
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253 try {
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254 cs = Charset.forName(altEncoding.toString());
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255 } catch (IllegalArgumentException ex) {
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256 // both IllegalCharsetNameException and UnsupportedCharsetException are subclasses of IAE, too
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257 // not severe enough to throw an exception, imo. Just record the fact it's bad ad we ignore it
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258 ctx.getLog().dump(Internals.class, Error, ex, String.format("Bad configuration value for filename encoding %s", altEncoding));
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259 cs = Charset.defaultCharset();
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260 }
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261 }
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262 return cs;
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263 }
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264
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265 /**
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266 * Access to mangled name of a file in repository storage, may come handy for debug.
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267 * @return mangled path of the repository file
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268 */
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269 public CharSequence getStoragePath(HgDataFile df) {
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270 return dataPathHelper.rewrite(df.getPath().toString());
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271 }
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272
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273 public int getRequiresFlags() {
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274 return requiresFlags;
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275 }
526
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276
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277 boolean shallMergePatches() {
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278 return shallMergePatches;
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279 }
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280
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281 RevlogChangeMonitor getRevlogTracker(File f) {
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282 // TODO decide whether to use one monitor per multiple files or
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283 // an instance per file; and let SessionContext pass alternative implementation)
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284 return new RevlogChangeMonitor(f);
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285 }
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286
292
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287 public static boolean runningOnWindows() {
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288 return System.getProperty("os.name").indexOf("Windows") != -1;
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289 }
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290
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291 /**
419
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292 * @param fsHint optional hint pointing to filesystem of interest (generally, it's possible to mount
413
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293 * filesystems with different capabilities and repository's capabilities would depend on which fs it resides)
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294 * @return <code>true</code> if executable files deserve tailored handling
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295 */
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296 public static boolean checkSupportsExecutables(File fsHint) {
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297 // *.exe are not executables for Mercurial
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298 return !runningOnWindows();
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299 }
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300
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301 /**
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302 * @param fsHint optional hint pointing to filesystem of interest (generally, it's possible to mount
413
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303 * filesystems with different capabilities and repository's capabilities would depend on which fs it resides)
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304 * @return <code>true</code> if filesystem knows what symbolic links are
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305 */
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306 public static boolean checkSupportsSymlinks(File fsHint) {
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307 // Windows supports soft symbolic links starting from Vista
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308 // However, as of Mercurial 2.1.1, no support for this functionality
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309 // XXX perhaps, makes sense to override with a property a) to speed up when no links are in use b) investigate how this runs windows
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310 return !runningOnWindows();
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311 }
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312
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313
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314 /**
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315 * For Unix, returns installation root, which is the parent directory of the hg executable (or symlink) being run.
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316 * For Windows, it's Mercurial installation directory itself
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317 * @param ctx
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318 */
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319 private static File findHgInstallRoot(SessionContext ctx) {
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320 // let clients to override Hg install location
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321 String p = (String) ctx.getConfigurationProperty(CFG_PROPERTY_HG_INSTALL_ROOT, null);
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322 if (p != null) {
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323 return new File(p);
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324 }
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325 StringTokenizer st = new StringTokenizer(System.getenv("PATH"), System.getProperty("path.separator"), false);
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326 final boolean runsOnWin = runningOnWindows();
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327 while (st.hasMoreTokens()) {
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328 String pe = st.nextToken();
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329 File execCandidate = new File(pe, runsOnWin ? "hg.exe" : "hg");
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330 if (execCandidate.exists() && execCandidate.isFile()) {
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331 File execDir = execCandidate.getParentFile();
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332 // e.g. on Unix runs "/shared/tools/bin/hg", directory of interest is "/shared/tools/"
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333 return runsOnWin ? execDir : execDir.getParentFile();
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334 }
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335 }
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336 return null;
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337 }
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338
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339 /**
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340 * User-specific configuration, from system-wide and user home locations, without any repository-specific data.
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341 *
379
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342 * @see http://www.selenic.com/mercurial/hgrc.5.html
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343 */
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344 public static ConfigFile readConfiguration(SessionContext sessionCtx) throws IOException {
483
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345 ConfigFile configFile = new ConfigFile(sessionCtx);
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346 File hgInstallRoot = findHgInstallRoot(sessionCtx); // may be null
379
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347 //
351
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348 if (runningOnWindows()) {
379
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349 if (hgInstallRoot != null) {
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350 for (File f : getWindowsConfigFilesPerInstall(hgInstallRoot)) {
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351 configFile.addLocation(f);
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352 }
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353 }
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354 LinkedHashSet<String> locations = new LinkedHashSet<String>();
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355 locations.add(System.getenv("USERPROFILE"));
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356 locations.add(System.getenv("HOME"));
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357 locations.remove(null);
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358 for (String loc : locations) {
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359 File location = new File(loc);
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360 configFile.addLocation(new File(location, "Mercurial.ini"));
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361 configFile.addLocation(new File(location, ".hgrc"));
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362 }
351
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363 } else {
379
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364 if (hgInstallRoot != null) {
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365 File d = new File(hgInstallRoot, "etc/mercurial/hgrc.d/");
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366 if (d.isDirectory() && d.canRead()) {
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367 for (File f : listConfigFiles(d)) {
351
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368 configFile.addLocation(f);
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369 }
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370 }
379
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371 configFile.addLocation(new File(hgInstallRoot, "etc/mercurial/hgrc"));
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372 }
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373 // same, but with absolute paths
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374 File d = new File("/etc/mercurial/hgrc.d/");
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375 if (d.isDirectory() && d.canRead()) {
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376 for (File f : listConfigFiles(d)) {
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377 configFile.addLocation(f);
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378 }
351
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379 }
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380 configFile.addLocation(new File("/etc/mercurial/hgrc"));
379
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381 configFile.addLocation(new File(System.getenv("HOME"), ".hgrc"));
351
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382 }
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383 return configFile;
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384 }
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385
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386 /**
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387 * Repository-specific configuration
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388 * @see http://www.selenic.com/mercurial/hgrc.5.html
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389 */
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390 public ConfigFile readConfiguration() throws IOException {
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391 ConfigFile configFile = readConfiguration(repo.getSessionContext());
331
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392 // last one, overrides anything else
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393 // <repo>/.hg/hgrc
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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394 configFile.addLocation(getFileFromRepoDir("hgrc"));
331
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395 return configFile;
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396 }
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397
591
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398 /*package-local*/ImplAccess getImplAccess() {
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399 return implAccess;
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400 }
379
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401
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402 private static List<File> getWindowsConfigFilesPerInstall(File hgInstallDir) {
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403 File f = new File(hgInstallDir, "Mercurial.ini");
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404 if (f.exists()) {
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405 return Collections.singletonList(f);
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406 }
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407 f = new File(hgInstallDir, "hgrc.d/");
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408 if (f.canRead() && f.isDirectory()) {
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409 return listConfigFiles(f);
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410 }
608
e1b29756f901 Clean, organize and resolve some TODOs and FIXMEs: minor refactorings and comments
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diff changeset
411 // TODO [post-1.1] query registry, e.g. with
379
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412 // Runtime.exec("reg query HKLM\Software\Mercurial")
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413 //
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414 f = new File("C:\\Mercurial\\Mercurial.ini");
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diff changeset
415 if (f.exists()) {
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416 return Collections.singletonList(f);
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417 }
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418 return Collections.emptyList();
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419 }
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420
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421 private static List<File> listConfigFiles(File dir) {
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422 assert dir.canRead();
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diff changeset
423 assert dir.isDirectory();
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diff changeset
424 final File[] allFiles = dir.listFiles();
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425 // File is Comparable, lexicographically by default
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426 Arrays.sort(allFiles);
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diff changeset
427 ArrayList<File> rv = new ArrayList<File>(allFiles.length);
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428 for (File f : allFiles) {
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429 if (f.getName().endsWith(".rc")) {
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430 rv.add(f);
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431 }
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432 }
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433 return rv;
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434 }
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diff changeset
435
382
82336b7c54f4 Per-repository UpdateConfigCommand completed. Access to system properties through SessionContext to ease alternation
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diff changeset
436 public static File getInstallationConfigurationFileToWrite(SessionContext ctx) {
82336b7c54f4 Per-repository UpdateConfigCommand completed. Access to system properties through SessionContext to ease alternation
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diff changeset
437 File hgInstallRoot = findHgInstallRoot(ctx); // may be null
379
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diff changeset
438 // choice of which hgrc to pick here is according to my own pure discretion
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diff changeset
439 if (hgInstallRoot != null) {
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440 // use this location only if it's writable
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
441 File cfg = new File(hgInstallRoot, runningOnWindows() ? "Mercurial.ini" : "etc/mercurial/hgrc");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
442 if (cfg.canWrite() || cfg.getParentFile().canWrite()) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
443 return cfg;
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
444 }
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
445 }
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
446 // fallback
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
447 if (runningOnWindows()) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
448 if (hgInstallRoot == null) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
449 return new File("C:\\Mercurial\\Mercurial.ini");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
450 } else {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
451 // yes, we tried this file already (above) and found it non-writable
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
452 // let caller fail with can't write
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
453 return new File(hgInstallRoot, "Mercurial.ini");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
454 }
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
455 } else {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
456 return new File("/etc/mercurial/hgrc");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
457 }
378
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
458 }
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
459
382
82336b7c54f4 Per-repository UpdateConfigCommand completed. Access to system properties through SessionContext to ease alternation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 379
diff changeset
460 public static File getUserConfigurationFileToWrite(SessionContext ctx) {
379
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
461 LinkedHashSet<String> locations = new LinkedHashSet<String>();
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
462 final boolean runsOnWindows = runningOnWindows();
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
463 if (runsOnWindows) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
464 locations.add(System.getenv("USERPROFILE"));
378
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
465 }
379
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
466 locations.add(System.getenv("HOME"));
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
467 locations.remove(null);
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
468 for (String loc : locations) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
469 File location = new File(loc);
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
470 File rv = new File(location, ".hgrc");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
471 if (rv.exists() && rv.canWrite()) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
472 return rv;
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
473 }
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
474 if (runsOnWindows) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
475 rv = new File(location, "Mercurial.ini");
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
476 if (rv.exists() && rv.canWrite()) {
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
477 return rv;
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
478 }
378
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
479 }
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
480 }
379
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
481 // fallback to default, let calling code fail with Exception if can't write
fa2be7a05af6 Implement discovery of mercurial installation, use it to read/write configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 378
diff changeset
482 return new File(System.getProperty("user.home"), ".hgrc");
378
9fb990c8a724 Investigate approaches to alter Mercurial configuration files
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 351
diff changeset
483 }
591
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
484
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
485 public RevlogStream createManifestStream() {
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
486 File manifestFile = getFileFromStoreDir("00manifest.i");
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
487 return streamProvider.create(manifestFile);
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
488 }
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: 382
diff changeset
489
591
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
490 public RevlogStream createChangelogStream() {
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
491 File chlogFile = getFileFromStoreDir("00changelog.i");
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
492 return streamProvider.create(chlogFile);
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
493 }
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
494
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
495 public RevlogStream resolveStoreFile(Path path) {
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
496 return streamProvider.resolveStoreFile(path);
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: 382
diff changeset
497 }
407
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
498
591
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
499 /*package-local*/ RevlogStream createStoreFile(Path path) throws HgInvalidControlFileException {
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
500 return streamProvider.createStoreFile(path);
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
501 }
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
502
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
503 // marker method
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
504 public static IllegalStateException notImplemented() {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
505 return new IllegalStateException("Not implemented");
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
506 }
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
507
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 504
diff changeset
508 public static Internals getInstance(HgRepository repo) {
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 504
diff changeset
509 return HgInternals.getImplementationRepo(repo);
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 504
diff changeset
510 }
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 504
diff changeset
511
407
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
512 public static <T> CharSequence join(Iterable<T> col, CharSequence separator) {
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
513 if (col == null) {
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
514 return String.valueOf(col);
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
515 }
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
516 Iterator<T> it = col.iterator();
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
517 if (!it.hasNext()) {
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
518 return "[]";
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
519 }
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
520 String v = String.valueOf(it.next());
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
521 StringBuilder sb = new StringBuilder(v);
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
522 while (it.hasNext()) {
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
523 sb.append(separator);
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
524 v = String.valueOf(it.next());
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
525 sb.append(v);
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
526 }
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
527 return sb;
30922c728341 Better multiline log printout; options to tune default log output
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
528 }
420
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
529
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
530 /**
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
531 * keep an eye on all long to int downcasts to get a chance notice the lost of data
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
532 * Use if there's even subtle chance there might be loss
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
533 * (ok not to use if there's no way for l to be greater than int)
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
534 */
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
535 public static int ltoi(long l) {
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
536 int i = (int) l;
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
537 assert ((long) i) == l : "Loss of data!";
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
538 return i;
6c22bdc0bdfd Respect long offsets in revlogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
539 }
591
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
540
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
541 // access implementation details (fields, methods) of oth.repo package
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
542 public interface ImplAccess {
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
543 public RevlogStream getStream(HgDataFile df);
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
544 public RevlogStream getManifestStream();
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
545 public RevlogStream getChangelogStream();
e447384f3771 CommitFacility as internal class; refactored infrastructure around internals (access to RevlogStream)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 584
diff changeset
546 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
547 }