Mercurial > jhg

annotate src/org/tmatesoft/hg/core/HgCloneCommand.java @ 626:5afc7eedb3dd v1.1rc1

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@since, TODOs. Tests: add 1 sec to deal with fs timestamp granularity on linux
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 21 May 2013 19:30:12 +0200
parents 4e6179bde4fc
children 6526d8adbc0f
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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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.repo.HgBundle;
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42 import org.tmatesoft.hg.repo.HgBundle.GroupElement;
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43 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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44 import org.tmatesoft.hg.repo.HgInvalidFileException;
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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 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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94 */
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95 public HgRepository execute() throws HgException, CancelledException {
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96 if (destination == null) {
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97 throw new IllegalArgumentException("Destination not set", null);
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98 }
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99 if (srcRepo == null || srcRepo.isInvalid()) {
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100 throw new HgBadArgumentException("Bad source repository", null);
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101 }
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102 if (destination.exists()) {
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103 if (!destination.isDirectory()) {
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104 throw new HgBadArgumentException(String.format("%s is not a directory", destination), null);
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105 } else if (destination.list().length > 0) {
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106 throw new HgBadArgumentException(String.format("%s shall be empty", destination), null);
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107 }
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108 } else {
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109 destination.mkdirs();
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110 }
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111 ProgressSupport progress = getProgressSupport(null);
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112 CancelSupport cancel = getCancelSupport(null, true);
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113 cancel.checkCancelled();
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114 // if cloning remote repo, which can stream and no revision is specified -
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115 // can use 'stream_out' wireproto
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116 //
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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 } catch (IOException ex) {
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130 throw new HgInvalidFileException(getClass().getName(), ex);
186
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131 } finally {
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132 completeChanges.unlink();
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133 progress.done();
186
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134 }
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135 return new HgLookup().detect(destination);
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136 }
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137
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138
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139 // 1. process changelog, memorize nodeids to index
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140 // 2. process manifest, using map from step 3, collect manifest nodeids
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141 // 3. process every file, using map from 3, and consult set from step 4 to ensure repo is correct
512
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142 private static class WriteDownMate implements HgBundle.Inspector, Lifecycle {
186
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143 private final File hgDir;
190
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144 private final PathRewrite storagePathHelper;
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145 private final ProgressSupport progressSupport;
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146 private final CancelSupport cancelSupport;
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147 private final SessionContext ctx;
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148 private final Path.Source pathFactory;
186
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149 private FileOutputStream indexFile;
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150 private File currentFile;
190
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151 private String filename; // human-readable name of the file being written, for log/exception purposes
186
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152
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153 private final TreeMap<Nodeid, Integer> changelogIndexes = new TreeMap<Nodeid, Integer>();
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154 private boolean collectChangelogIndexes = false;
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155
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156 private DataAccess prevRevContent;
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157 private final DigestHelper dh = new DigestHelper();
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158 // recently processed nodes last, so that index in the array may be used as a linkRevision or baseRevision
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159 private final ArrayList<Nodeid> revisionSequence = new ArrayList<Nodeid>();
186
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160
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161 private FNCacheFile fncacheFile;
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162 private RepoInitializer repoInit;
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163 private Lifecycle.Callback lifecycleCallback;
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164 private CancelledException cancelException;
186
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165
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166 private RevlogStreamWriter.HeaderWriter revlogHeader = new RevlogStreamWriter.HeaderWriter(true);
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167 private RevlogCompressor revlogDataZip;
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168
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169 public WriteDownMate(SessionContext sessionCtx, File destDir, ProgressSupport progress, CancelSupport cancel) {
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170 ctx = sessionCtx;
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171 hgDir = new File(destDir, ".hg");
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172 repoInit = new RepoInitializer();
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173 repoInit.setRequires(STORE | FNCACHE | DOTENCODE);
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174 storagePathHelper = repoInit.buildDataFilesHelper(sessionCtx);
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175 progressSupport = progress;
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176 cancelSupport = cancel;
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177 revlogDataZip = new RevlogCompressor(sessionCtx);
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178 pathFactory = ctx.getPathFactory();
186
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179 }
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180
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181 public void initEmptyRepository() throws HgIOException, HgRepositoryNotFoundException {
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182 repoInit.initEmptyRepository(hgDir);
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183 assert (repoInit.getRequires() & FNCACHE) != 0;
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184 // XXX perhaps, with WriteDownMate moving to a more appropriate location,
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185 // we could instantiate HgRepository (or Internals) by other means, without exception?
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186 fncacheFile = new FNCacheFile(Internals.getInstance(new HgLookup(ctx).detect(hgDir)));
186
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187 }
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188
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189 public void complete() throws IOException {
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190 fncacheFile.write();
186
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191 }
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192
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193 public void changelogStart() {
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194 try {
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195 revlogHeader.offset(0).baseRevision(-1);
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196 revisionSequence.clear();
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197 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00changelog.i"));
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198 collectChangelogIndexes = true;
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199 } catch (IOException ex) {
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200 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
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201 }
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202 stopIfCancelled();
186
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203 }
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204
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205 public void changelogEnd() {
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206 try {
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207 clearPreviousContent();
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208 collectChangelogIndexes = false;
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209 closeIndexFile();
186
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210 } catch (IOException ex) {
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211 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
186
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212 }
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213 progressSupport.worked(1);
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214 stopIfCancelled();
186
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215 }
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216
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217 public void manifestStart() {
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218 try {
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219 revlogHeader.offset(0).baseRevision(-1);
186
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220 revisionSequence.clear();
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221 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00manifest.i"));
186
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222 } catch (IOException ex) {
532
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223 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
186
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224 }
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225 stopIfCancelled();
186
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226 }
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227
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228 public void manifestEnd() {
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229 try {
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230 clearPreviousContent();
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231 closeIndexFile();
186
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232 } catch (IOException ex) {
532
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233 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
186
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234 }
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235 progressSupport.worked(1);
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236 stopIfCancelled();
186
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237 }
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238
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239 public void fileStart(String name) {
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240 try {
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241 revlogHeader.offset(0).baseRevision(-1);
186
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242 revisionSequence.clear();
292
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243 File file = new File(hgDir, filename = storagePathHelper.rewrite(name).toString());
186
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244 file.getParentFile().mkdirs();
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245 indexFile = new FileOutputStream(currentFile = file);
186
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246 } catch (IOException ex) {
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247 String m = String.format("Failed to write file %s", filename);
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248 throw new HgInvalidControlFileException(m, ex, new File(filename));
186
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249 }
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250 stopIfCancelled();
186
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251 }
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252
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253 public void fileEnd(String name) {
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254 try {
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255 fncacheFile.addIndex(pathFactory.path(name));
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256 clearPreviousContent();
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257 closeIndexFile();
186
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258 } catch (IOException ex) {
423
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259 String m = String.format("Failed to write file %s", filename);
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260 throw new HgInvalidControlFileException(m, ex, new File(filename));
186
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261 }
513
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262 progressSupport.worked(1);
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263 stopIfCancelled();
186
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264 }
532
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265
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266 private void clearPreviousContent() {
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267 if (prevRevContent != null) {
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268 prevRevContent.done();
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269 prevRevContent = null;
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270 }
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271 }
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272
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273 private void closeIndexFile() throws IOException {
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274 indexFile.close();
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275 indexFile = null;
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276 filename = null;
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277 currentFile = null;
532
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278 }
186
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279
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280 private int knownRevision(Nodeid p) {
274
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281 if (p.isNull()) {
186
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282 return -1;
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283 } else {
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284 for (int i = revisionSequence.size() - 1; i >= 0; i--) {
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285 if (revisionSequence.get(i).equals(p)) {
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286 return i;
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287 }
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288 }
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289 }
423
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290 String m = String.format("Can't find index of %s for file %s", p.shortNotation(), filename);
532
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291 throw new HgInvalidControlFileException(m, null, new File(hgDir, filename)).setRevision(p);
186
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292 }
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293
186
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294 public boolean element(GroupElement ge) {
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295 try {
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296 assert indexFile != null;
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297 boolean writeComplete = false;
532
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298 Nodeid deltaBase = ge.patchBase();
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299 if (deltaBase.isNull()) {
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300 // NOTE, can't use both parents isNull == true to empty prevRevContent
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301 // see build.gradle sample below why.
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302 prevRevContent = new DataAccess(); // empty data
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303 writeComplete = true;
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304 // if (writeComplete) would set baseRevision correctly,
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305 } else {
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306 Nodeid prevRevision = revisionSequence.size() > 0 ? revisionSequence.get(revisionSequence.size()-1) : Nodeid.NULL;
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307 if (!prevRevision.equals(deltaBase)) {
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308 // presently, bundle group elements always patch previous, see
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309 // (a) changegroup.py#builddeltaheader(): # do nothing with basenode, it is implicitly the previous one in HG10
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310 // (b) revlog.py#group(): prev, curr = revs[r], revs[r + 1]
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311 // for c in bundler.revchunk(self, curr, prev):
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312 // so there's no reason to have code here to extract contents of deltaBase revision
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313 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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314 throw new HgInvalidStateException(m);
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315 }
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316 }
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317 //
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318 byte[] content = ge.apply(prevRevContent.byteArray());
186
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319 Nodeid p1 = ge.firstParent();
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320 Nodeid p2 = ge.secondParent();
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321 byte[] calculated = dh.sha1(p1, p2, content).asBinary();
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322 final Nodeid node = ge.node();
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323 if (!node.equalsTo(calculated)) {
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324 String m = String.format("Checksum failed: expected %s, calculated %s. File %s", node, calculated, filename);
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325 throw new HgRevisionIntegrityException(m, null, new File(hgDir, filename));
186
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326 }
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327 revlogHeader.nodeid(node);
532
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328 //
186
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329 if (collectChangelogIndexes) {
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330 changelogIndexes.put(node, revisionSequence.size());
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331 revlogHeader.linkRevision(revisionSequence.size());
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332 } else {
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333 Integer csRev = changelogIndexes.get(ge.cset());
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334 if (csRev == null) {
423
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335 throw new HgInvalidStateException(String.format("Changelog doesn't contain revision %s of %s", ge.cset().shortNotation(), filename));
186
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336 }
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337 revlogHeader.linkRevision(csRev.intValue());
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338 }
532
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339 //
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340 revlogHeader.parents(knownRevision(p1), knownRevision(p2));
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341 //
358
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342 byte[] patchContent = ge.rawDataByteArray();
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343 // no reason to keep patch if it's close (here, >75%) in size to the complete contents,
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344 // save patching effort in this case
534
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345 writeComplete = writeComplete || preferCompleteOverPatch(patchContent.length, content.length);
532
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346
186
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347 if (writeComplete) {
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348 revlogHeader.baseRevision(revisionSequence.size());
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349 }
532
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350 assert revlogHeader.baseRevision() >= 0;
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351
358
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352 final byte[] sourceData = writeComplete ? content : patchContent;
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353 revlogDataZip.reset(new DataSerializer.ByteArrayDataSource(sourceData));
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354 final int compressedLen;
534
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355 final boolean useUncompressedData = preferCompressedOverComplete(revlogDataZip.getCompressedLength(), sourceData.length);
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356 if (useUncompressedData) {
186
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357 // compression wasn't too effective,
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358 compressedLen = sourceData.length + 1 /*1 byte for 'u' - uncompressed prefix byte*/;
186
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359 } else {
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360 compressedLen= revlogDataZip.getCompressedLength();
186
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361 }
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362
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363 revlogHeader.length(content.length, compressedLen);
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364
534
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365 // XXX may be wise not to create DataSerializer for each revision, but for a file
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366 DataSerializer sds = new DataSerializer() {
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367 @Override
618
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368 public void write(byte[] data, int offset, int length) throws HgIOException {
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369 try {
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370 indexFile.write(data, offset, length);
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371 } catch (IOException ex) {
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372 throw new HgIOException("Write failure", ex, currentFile);
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373 }
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374 }
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375 };
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376 revlogHeader.serialize(sds);
186
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377
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378 if (useUncompressedData) {
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379 indexFile.write((byte) 'u');
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380 indexFile.write(sourceData);
186
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381 } else {
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382 int actualCompressedLenWritten = revlogDataZip.writeCompressedData(sds);
530
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383 if (actualCompressedLenWritten != compressedLen) {
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384 throw new HgInvalidStateException(String.format("Expected %d bytes of compressed data, but actually wrote %d in %s", compressedLen, actualCompressedLenWritten, filename));
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385 }
186
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386 }
534
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387 sds.done();
186
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388 //
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389 revisionSequence.add(node);
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390 prevRevContent.done();
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391 prevRevContent = new ByteArrayDataAccess(content);
618
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392 } catch (HgIOException ex) {
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393 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
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394 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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395 } catch (IOException ex) {
423
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396 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
618
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397 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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398 }
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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399 return cancelException == null;
186
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400 }
530
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401 /*
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402 $ hg debugindex build.gradle
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403 rev offset length base linkrev nodeid p1 p2
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404 0 0 857 0 454 b2a1b20d1933 000000000000 000000000000
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405 1 857 319 0 455 5324c8f2b550 b2a1b20d1933 000000000000
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406 2 1176 533 0 460 4011d52141cd 5324c8f2b550 000000000000
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407 3 1709 85 0 463 d0be58845306 4011d52141cd 000000000000
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408 4 1794 105 0 464 3ddd456244a0 d0be58845306 000000000000
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409 5 1899 160 0 466 a3f374fbf33a 3ddd456244a0 000000000000
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410 6 2059 133 0 468 0227d28e0db6 a3f374fbf33a 000000000000
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411
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diff changeset
412 once we get a bundle for this repository and look into it for the same file:
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413
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414 $hg debugbundle -a /tmp/hg-bundle-4418325145435980614.tmp
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diff changeset
415 format: id, p1, p2, cset, delta base, len(delta)
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
416
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
417 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
418 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
419 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
420 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
421 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
422 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
423 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
424 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
425 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
426
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
427 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
428
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 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
430
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 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
432 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
433 $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
434 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
435 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
436 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
437 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
438 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
439 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
440 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
441 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
442 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
443
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 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
445 */
512
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
446
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
447 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
448 progressSupport.start(count);
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
449 lifecycleCallback = callback;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
450 }
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 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
453 progressSupport.done();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
454 lifecycleCallback = null;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
455 }
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 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
458 if (cancelException != null) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
459 throw cancelException;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
460 }
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 private void stopIfCancelled() {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
464 try {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
465 cancelSupport.checkCancelled();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
466 return;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
467 } catch (CancelledException ex) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
468 cancelException = ex;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
469 lifecycleCallback.stop();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
470 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
471 }
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
472 }
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 }