Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgCloneCommand.java @ 664:ae2d439fbed3

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Utilize transaction when writing fncache. Better HgIOException
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 10 Jul 2013 19:33:51 +0200
parents 4a0bab2c6da1
children 545b1d4cc11d
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.core;
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19 import static org.tmatesoft.hg.core.Nodeid.NULL;
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20 import static org.tmatesoft.hg.internal.RequiresFile.*;
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21 import static org.tmatesoft.hg.internal.RevlogStreamWriter.preferCompleteOverPatch;
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22 import static org.tmatesoft.hg.internal.RevlogStreamWriter.preferCompressedOverComplete;
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23
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24 import java.io.File;
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25 import java.io.FileOutputStream;
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26 import java.io.IOException;
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27 import java.util.ArrayList;
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28 import java.util.Collections;
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29 import java.util.TreeMap;
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30
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31 import org.tmatesoft.hg.internal.ByteArrayDataAccess;
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32 import org.tmatesoft.hg.internal.DataAccess;
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33 import org.tmatesoft.hg.internal.DataSerializer;
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34 import org.tmatesoft.hg.internal.DigestHelper;
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35 import org.tmatesoft.hg.internal.FNCacheFile;
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36 import org.tmatesoft.hg.internal.Internals;
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37 import org.tmatesoft.hg.internal.Lifecycle;
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38 import org.tmatesoft.hg.internal.RepoInitializer;
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39 import org.tmatesoft.hg.internal.RevlogCompressor;
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40 import org.tmatesoft.hg.internal.RevlogStreamWriter;
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41 import org.tmatesoft.hg.internal.Transaction;
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42 import org.tmatesoft.hg.repo.HgBundle;
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43 import org.tmatesoft.hg.repo.HgBundle.GroupElement;
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44 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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45 import org.tmatesoft.hg.repo.HgInvalidStateException;
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46 import org.tmatesoft.hg.repo.HgLookup;
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47 import org.tmatesoft.hg.repo.HgRemoteRepository;
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48 import org.tmatesoft.hg.repo.HgRepository;
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49 import org.tmatesoft.hg.repo.HgRuntimeException;
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50 import org.tmatesoft.hg.util.CancelSupport;
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51 import org.tmatesoft.hg.util.CancelledException;
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52 import org.tmatesoft.hg.util.Path;
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53 import org.tmatesoft.hg.util.PathRewrite;
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54 import org.tmatesoft.hg.util.ProgressSupport;
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55
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56 /**
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57 * WORK IN PROGRESS, DO NOT USE
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58 *
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59 * @author Artem Tikhomirov
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60 * @author TMate Software Ltd.
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61 */
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62 public class HgCloneCommand extends HgAbstractCommand<HgCloneCommand> {
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63
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64 private File destination;
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65 private HgRemoteRepository srcRepo;
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66
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67 public HgCloneCommand() {
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68 }
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69
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70 /**
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71 * @param folder location to become root of the repository (i.e. where <em>.hg</em> folder would reside). Either
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72 * shall not exist or be empty otherwise.
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73 * @return <code>this</code> for convenience
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74 */
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75 public HgCloneCommand destination(File folder) {
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76 destination = folder;
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77 return this;
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78 }
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80 public HgCloneCommand source(HgRemoteRepository hgRemote) {
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81 srcRepo = hgRemote;
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82 return this;
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83 }
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84
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85 /**
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86 *
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87 * @return
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88 * @throws HgBadArgumentException
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89 * @throws HgRemoteConnectionException
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90 * @throws HgRepositoryNotFoundException
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91 * @throws HgException
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92 * @throws CancelledException
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93 */
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94 public HgRepository execute() throws HgException, CancelledException {
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95 if (destination == null) {
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96 throw new IllegalArgumentException("Destination not set", null);
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97 }
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98 if (srcRepo == null || srcRepo.isInvalid()) {
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99 throw new HgBadArgumentException("Bad source repository", null);
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100 }
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101 if (destination.exists()) {
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102 if (!destination.isDirectory()) {
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103 throw new HgBadArgumentException(String.format("%s is not a directory", destination), null);
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104 } else if (destination.list().length > 0) {
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105 throw new HgBadArgumentException(String.format("%s shall be empty", destination), null);
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106 }
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107 } else {
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108 destination.mkdirs();
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109 }
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110 ProgressSupport progress = getProgressSupport(null);
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111 CancelSupport cancel = getCancelSupport(null, true);
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112 cancel.checkCancelled();
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113 // if cloning remote repo, which can stream and no revision is specified -
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114 // can use 'stream_out' wireproto
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115 //
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116 try {
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117 // pull all changes from the very beginning
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118 // XXX consult getContext() if by any chance has a bundle ready, if not, then read and register
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119 HgBundle completeChanges = srcRepo.getChanges(Collections.singletonList(NULL));
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120 cancel.checkCancelled();
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121 WriteDownMate mate = new WriteDownMate(srcRepo.getSessionContext(), destination, progress, cancel);
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122 try {
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123 // instantiate new repo in the destdir
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124 mate.initEmptyRepository();
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125 // pull changes
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126 completeChanges.inspectAll(mate);
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127 mate.checkFailure();
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128 mate.complete();
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129 } finally {
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130 completeChanges.unlink();
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131 progress.done();
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132 }
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133 } catch (HgRuntimeException ex) {
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134 throw new HgLibraryFailureException(ex);
186
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135 }
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136 return new HgLookup().detect(destination);
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137 }
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138
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139
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140 // 1. process changelog, memorize nodeids to index
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141 // 2. process manifest, using map from step 3, collect manifest nodeids
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142 // 3. process every file, using map from 3, and consult set from step 4 to ensure repo is correct
512
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143 private static class WriteDownMate implements HgBundle.Inspector, Lifecycle {
186
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144 private final File hgDir;
190
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145 private final PathRewrite storagePathHelper;
512
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146 private final ProgressSupport progressSupport;
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147 private final CancelSupport cancelSupport;
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148 private final SessionContext ctx;
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149 private final Path.Source pathFactory;
186
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150 private FileOutputStream indexFile;
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151 private File currentFile;
190
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152 private String filename; // human-readable name of the file being written, for log/exception purposes
186
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153
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154 private final TreeMap<Nodeid, Integer> changelogIndexes = new TreeMap<Nodeid, Integer>();
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155 private boolean collectChangelogIndexes = false;
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156
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157 private DataAccess prevRevContent;
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158 private final DigestHelper dh = new DigestHelper();
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159 // recently processed nodes last, so that index in the array may be used as a linkRevision or baseRevision
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160 private final ArrayList<Nodeid> revisionSequence = new ArrayList<Nodeid>();
186
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161
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162 private FNCacheFile fncacheFile;
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163 private RepoInitializer repoInit;
512
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164 private Lifecycle.Callback lifecycleCallback;
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165 private CancelledException cancelException;
186
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166
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167 private RevlogStreamWriter.HeaderWriter revlogHeader = new RevlogStreamWriter.HeaderWriter(true);
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168 private RevlogCompressor revlogDataZip;
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169
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170 public WriteDownMate(SessionContext sessionCtx, File destDir, ProgressSupport progress, CancelSupport cancel) {
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171 ctx = sessionCtx;
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172 hgDir = new File(destDir, ".hg");
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173 repoInit = new RepoInitializer();
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174 repoInit.setRequires(REVLOGV1 | STORE | FNCACHE | DOTENCODE);
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175 storagePathHelper = repoInit.buildDataFilesHelper(sessionCtx);
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176 progressSupport = progress;
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177 cancelSupport = cancel;
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178 revlogDataZip = new RevlogCompressor(sessionCtx);
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179 pathFactory = ctx.getPathFactory();
186
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180 }
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181
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182 public void initEmptyRepository() throws HgIOException, HgRepositoryNotFoundException {
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183 repoInit.initEmptyRepository(hgDir);
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184 assert (repoInit.getRequires() & FNCACHE) != 0;
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185 // XXX perhaps, with WriteDownMate moving to a more appropriate location,
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186 // we could instantiate HgRepository (or Internals) by other means, without exception?
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187 fncacheFile = new FNCacheFile(Internals.getInstance(new HgLookup(ctx).detect(hgDir)));
186
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188 }
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189
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190 public void complete() throws HgIOException {
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191 fncacheFile.write(new Transaction.NoRollback());
186
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192 }
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193
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194 public void changelogStart() throws HgInvalidControlFileException {
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195 try {
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196 revlogHeader.offset(0).baseRevision(-1);
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197 revisionSequence.clear();
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198 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00changelog.i"));
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199 collectChangelogIndexes = true;
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200 } catch (IOException ex) {
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201 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
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202 }
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203 stopIfCancelled();
186
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204 }
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205
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206 public void changelogEnd() throws HgInvalidControlFileException {
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207 try {
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208 clearPreviousContent();
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209 collectChangelogIndexes = false;
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210 closeIndexFile();
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211 } catch (IOException ex) {
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212 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
186
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213 }
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214 progressSupport.worked(1);
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215 stopIfCancelled();
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216 }
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217
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218 public void manifestStart() throws HgInvalidControlFileException {
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219 try {
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220 revlogHeader.offset(0).baseRevision(-1);
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221 revisionSequence.clear();
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222 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00manifest.i"));
186
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223 } catch (IOException ex) {
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224 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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225 }
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226 stopIfCancelled();
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227 }
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228
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229 public void manifestEnd() throws HgInvalidControlFileException {
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230 try {
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231 clearPreviousContent();
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232 closeIndexFile();
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233 } catch (IOException ex) {
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234 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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235 }
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236 progressSupport.worked(1);
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237 stopIfCancelled();
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238 }
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239
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240 public void fileStart(String name) throws HgInvalidControlFileException {
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241 try {
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242 revlogHeader.offset(0).baseRevision(-1);
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243 revisionSequence.clear();
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244 File file = new File(hgDir, filename = storagePathHelper.rewrite(name).toString());
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245 file.getParentFile().mkdirs();
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246 indexFile = new FileOutputStream(currentFile = file);
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247 } catch (IOException ex) {
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248 String m = String.format("Failed to write file %s", filename);
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249 throw new HgInvalidControlFileException(m, ex, new File(filename));
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250 }
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251 stopIfCancelled();
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252 }
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253
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254 public void fileEnd(String name) throws HgInvalidControlFileException {
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255 try {
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256 fncacheFile.addIndex(pathFactory.path(name));
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257 clearPreviousContent();
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258 closeIndexFile();
186
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259 } catch (IOException ex) {
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260 String m = String.format("Failed to write file %s", filename);
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261 throw new HgInvalidControlFileException(m, ex, new File(filename));
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262 }
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263 progressSupport.worked(1);
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264 stopIfCancelled();
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265 }
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266
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267 private void clearPreviousContent() {
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268 if (prevRevContent != null) {
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269 prevRevContent.done();
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270 prevRevContent = null;
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271 }
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272 }
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273
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274 private void closeIndexFile() throws IOException {
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275 indexFile.close();
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276 indexFile = null;
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277 filename = null;
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278 currentFile = null;
532
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279 }
186
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280
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281 private int knownRevision(Nodeid p) throws HgInvalidControlFileException {
274
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282 if (p.isNull()) {
186
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283 return -1;
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284 } else {
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285 for (int i = revisionSequence.size() - 1; i >= 0; i--) {
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286 if (revisionSequence.get(i).equals(p)) {
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287 return i;
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288 }
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289 }
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290 }
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291 String m = String.format("Can't find index of %s for file %s", p.shortNotation(), filename);
532
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292 throw new HgInvalidControlFileException(m, null, new File(hgDir, filename)).setRevision(p);
186
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293 }
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294
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295 public boolean element(GroupElement ge) throws HgRuntimeException {
186
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296 try {
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297 assert indexFile != null;
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298 boolean writeComplete = false;
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299 Nodeid deltaBase = ge.patchBase();
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300 if (deltaBase.isNull()) {
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301 // NOTE, can't use both parents isNull == true to empty prevRevContent
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302 // see build.gradle sample below why.
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303 prevRevContent = new DataAccess(); // empty data
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304 writeComplete = true;
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305 // if (writeComplete) would set baseRevision correctly,
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306 } else {
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307 Nodeid prevRevision = revisionSequence.size() > 0 ? revisionSequence.get(revisionSequence.size()-1) : Nodeid.NULL;
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308 if (!prevRevision.equals(deltaBase)) {
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309 // presently, bundle group elements always patch previous, see
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310 // (a) changegroup.py#builddeltaheader(): # do nothing with basenode, it is implicitly the previous one in HG10
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311 // (b) revlog.py#group(): prev, curr = revs[r], revs[r + 1]
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312 // for c in bundler.revchunk(self, curr, prev):
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313 // so there's no reason to have code here to extract contents of deltaBase revision
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314 String m = String.format("Revision %s import failed: delta base %s is not the last node we've handled (and know content for) %s", ge.node(), deltaBase, prevRevision);
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315 throw new HgInvalidStateException(m);
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316 }
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317 }
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318 //
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319 byte[] content = ge.apply(prevRevContent.byteArray());
186
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320 Nodeid p1 = ge.firstParent();
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321 Nodeid p2 = ge.secondParent();
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322 byte[] calculated = dh.sha1(p1, p2, content).asBinary();
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323 final Nodeid node = ge.node();
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324 if (!node.equalsTo(calculated)) {
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325 String m = String.format("Checksum failed: expected %s, calculated %s. File %s", node, calculated, filename);
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326 throw new HgRevisionIntegrityException(m, null, new File(hgDir, filename));
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327 }
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328 revlogHeader.nodeid(node);
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329 //
186
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330 if (collectChangelogIndexes) {
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331 changelogIndexes.put(node, revisionSequence.size());
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332 revlogHeader.linkRevision(revisionSequence.size());
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333 } else {
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334 Integer csRev = changelogIndexes.get(ge.cset());
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335 if (csRev == null) {
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336 throw new HgInvalidStateException(String.format("Changelog doesn't contain revision %s of %s", ge.cset().shortNotation(), filename));
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337 }
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338 revlogHeader.linkRevision(csRev.intValue());
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339 }
532
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340 //
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341 revlogHeader.parents(knownRevision(p1), knownRevision(p2));
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342 //
358
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343 byte[] patchContent = ge.rawDataByteArray();
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344 // no reason to keep patch if it's close (here, >75%) in size to the complete contents,
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345 // save patching effort in this case
534
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346 writeComplete = writeComplete || preferCompleteOverPatch(patchContent.length, content.length);
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347
186
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348 if (writeComplete) {
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349 revlogHeader.baseRevision(revisionSequence.size());
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350 }
532
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351 assert revlogHeader.baseRevision() >= 0;
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352
358
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353 final byte[] sourceData = writeComplete ? content : patchContent;
534
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354 revlogDataZip.reset(new DataSerializer.ByteArrayDataSource(sourceData));
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355 final int compressedLen;
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356 final boolean useUncompressedData = preferCompressedOverComplete(revlogDataZip.getCompressedLength(), sourceData.length);
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357 if (useUncompressedData) {
186
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358 // compression wasn't too effective,
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359 compressedLen = sourceData.length + 1 /*1 byte for 'u' - uncompressed prefix byte*/;
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360 } else {
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361 compressedLen= revlogDataZip.getCompressedLength();
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362 }
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363
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364 revlogHeader.length(content.length, compressedLen);
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365
534
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366 // XXX may be wise not to create DataSerializer for each revision, but for a file
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367 DataSerializer sds = new DataSerializer() {
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368 @Override
618
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369 public void write(byte[] data, int offset, int length) throws HgIOException {
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370 try {
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371 indexFile.write(data, offset, length);
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372 } catch (IOException ex) {
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373 throw new HgIOException("Write failure", ex, currentFile);
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374 }
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375 }
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376 };
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377 revlogHeader.serialize(sds);
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378
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379 if (useUncompressedData) {
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380 indexFile.write((byte) 'u');
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381 indexFile.write(sourceData);
186
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382 } else {
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383 int actualCompressedLenWritten = revlogDataZip.writeCompressedData(sds);
530
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384 if (actualCompressedLenWritten != compressedLen) {
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385 throw new HgInvalidStateException(String.format("Expected %d bytes of compressed data, but actually wrote %d in %s", compressedLen, actualCompressedLenWritten, filename));
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386 }
186
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387 }
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388 sds.done();
186
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389 //
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390 revisionSequence.add(node);
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391 prevRevContent.done();
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392 prevRevContent = new ByteArrayDataAccess(content);
618
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393 } catch (HgIOException ex) {
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394 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
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395 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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396 } catch (IOException ex) {
423
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397 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
618
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398 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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399 }
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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400 return cancelException == null;
186
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401 }
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402 /*
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403 $ hg debugindex build.gradle
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404 rev offset length base linkrev nodeid p1 p2
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405 0 0 857 0 454 b2a1b20d1933 000000000000 000000000000
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406 1 857 319 0 455 5324c8f2b550 b2a1b20d1933 000000000000
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407 2 1176 533 0 460 4011d52141cd 5324c8f2b550 000000000000
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408 3 1709 85 0 463 d0be58845306 4011d52141cd 000000000000
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409 4 1794 105 0 464 3ddd456244a0 d0be58845306 000000000000
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410 5 1899 160 0 466 a3f374fbf33a 3ddd456244a0 000000000000
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411 6 2059 133 0 468 0227d28e0db6 a3f374fbf33a 000000000000
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412
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413 once we get a bundle for this repository and look into it for the same file:
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414
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415 $hg debugbundle -a /tmp/hg-bundle-4418325145435980614.tmp
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diff changeset
416 format: id, p1, p2, cset, delta base, len(delta)
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417
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diff changeset
418 build.gradle
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
419 62a101b7994c6c5b0423ba6c802f8c64d24ef784 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 6ec4af642ba8024edd636af15e672c97cc3294e4 0000000000000000000000000000000000000000 1368
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
420 b2a1b20d1933d0605aab6780ee52fe5ab3073832 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 7dcc920e2d57d5850ee9f08ac863251460565bd3 62a101b7994c6c5b0423ba6c802f8c64d24ef784 2373
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
421 5324c8f2b5503a4d1ead3ac40a9851c27572166b b2a1b20d1933d0605aab6780ee52fe5ab3073832 0000000000000000000000000000000000000000 7b883bf03b14ccea8ee74db0a34f9f66ca644a3c b2a1b20d1933d0605aab6780ee52fe5ab3073832 579
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
422 4011d52141cd717c92cbf350a93522d2f3ee415e 5324c8f2b5503a4d1ead3ac40a9851c27572166b 0000000000000000000000000000000000000000 55e9588b84b83aa96fe76a06ee8bf067c5d3c90e 5324c8f2b5503a4d1ead3ac40a9851c27572166b 1147
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
423 d0be588453068787dcb3ee05f8edfe47fdd5ae78 4011d52141cd717c92cbf350a93522d2f3ee415e 0000000000000000000000000000000000000000 ad0322a4af204547c400e1846b2b83d446ab8da5 4011d52141cd717c92cbf350a93522d2f3ee415e 85
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
424 3ddd456244a08f81779163d9faf922a6dcd9e53e d0be588453068787dcb3ee05f8edfe47fdd5ae78 0000000000000000000000000000000000000000 3ace1fc95d0a1a941b6427c60b6e624f96dd71ad d0be588453068787dcb3ee05f8edfe47fdd5ae78 151
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
425 a3f374fbf33aba1cc3b4f472db022b5185880f5d 3ddd456244a08f81779163d9faf922a6dcd9e53e 0000000000000000000000000000000000000000 3ca4ae7bdd3890b8ed89bfea1b42af593e04b373 3ddd456244a08f81779163d9faf922a6dcd9e53e 195
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
426 0227d28e0db69afebee34cd5a4151889fb6271da a3f374fbf33aba1cc3b4f472db022b5185880f5d 0000000000000000000000000000000000000000 31bd09da0dcfe48e1fc662143f91ff402238aa84 a3f374fbf33aba1cc3b4f472db022b5185880f5d 145
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
427
532
688c1ab113bb Introduce explicit reference to base patch in bundle's group element, use it when cloning to fix defect when few revisions list null,null parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 531
diff changeset
428 but there's no delta base information in the bundle file, it's merely a hard-coded convention
530
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
429
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
430 It's unclear where the first chunk (identified 62a101b7...) comes from (by the way, there's no such changeset as 6ec4af... as specified in the chunk, while 7dcc920e.. IS changeset 454)
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
431
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
432 EXPLANATION:
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
433 if cloned repository comes from svnkit repo (where's the gradle branch):
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
434 $hg debugindex build.gradle
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
435 rev offset length base linkrev nodeid p1 p2
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
436 0 0 590 0 213 62a101b7994c 000000000000 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
437 1 590 872 0 452 b2a1b20d1933 000000000000 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
438 2 1462 319 0 453 5324c8f2b550 b2a1b20d1933 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
439 3 1781 533 0 459 4011d52141cd 5324c8f2b550 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
440 4 2314 85 0 462 d0be58845306 4011d52141cd 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
441 5 2399 105 0 466 3ddd456244a0 d0be58845306 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
442 6 2504 160 0 468 a3f374fbf33a 3ddd456244a0 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
443 7 2664 133 0 470 0227d28e0db6 a3f374fbf33a 000000000000
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
444
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
445 and the aforementioned bundle was result of hg incoming svnkit!!!
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
446 */
512
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
447
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
448 public void start(int count, Callback callback, Object token) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
449 progressSupport.start(count);
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
450 lifecycleCallback = callback;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
451 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
452
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
453 public void finish(Object token) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
454 progressSupport.done();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
455 lifecycleCallback = null;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
456 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
457
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
458 public void checkFailure() throws CancelledException {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
459 if (cancelException != null) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
460 throw cancelException;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
461 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
462 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
463
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
464 private void stopIfCancelled() {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
465 try {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
466 cancelSupport.checkCancelled();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
467 return;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
468 } catch (CancelledException ex) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
469 cancelException = ex;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
470 lifecycleCallback.stop();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
471 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
472 }
186
44a34baabea0 Clone refactored into a command. HgBundle needs means to control its lifecycle, to be deleted when no longer needed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
473 }
44a34baabea0 Clone refactored into a command. HgBundle needs means to control its lifecycle, to be deleted when no longer needed
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
474 }