Mercurial > jhg

annotate src/org/tmatesoft/hg/core/HgCloneCommand.java @ 681:4f93bbc73b64

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Do not instantiate thousands of small arrays(numerous readInt/readLong calls)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sun, 21 Jul 2013 17:48:05 +0200
parents 545b1d4cc11d
children
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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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.DataSerializer.ByteArrayDataSource;
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35 import org.tmatesoft.hg.internal.DigestHelper;
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36 import org.tmatesoft.hg.internal.FNCacheFile;
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37 import org.tmatesoft.hg.internal.Internals;
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38 import org.tmatesoft.hg.internal.Lifecycle;
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39 import org.tmatesoft.hg.internal.Patch;
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40 import org.tmatesoft.hg.internal.RepoInitializer;
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41 import org.tmatesoft.hg.internal.RevlogCompressor;
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42 import org.tmatesoft.hg.internal.RevlogStreamWriter;
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43 import org.tmatesoft.hg.internal.Transaction;
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44 import org.tmatesoft.hg.repo.HgBundle;
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45 import org.tmatesoft.hg.repo.HgBundle.GroupElement;
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46 import org.tmatesoft.hg.repo.HgInternals;
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47 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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48 import org.tmatesoft.hg.repo.HgInvalidStateException;
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49 import org.tmatesoft.hg.repo.HgLookup;
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50 import org.tmatesoft.hg.repo.HgRemoteRepository;
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51 import org.tmatesoft.hg.repo.HgRepository;
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52 import org.tmatesoft.hg.repo.HgRuntimeException;
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53 import org.tmatesoft.hg.util.CancelSupport;
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54 import org.tmatesoft.hg.util.CancelledException;
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55 import org.tmatesoft.hg.util.Path;
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56 import org.tmatesoft.hg.util.PathRewrite;
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57 import org.tmatesoft.hg.util.ProgressSupport;
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58
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59 /**
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60 * WORK IN PROGRESS, DO NOT USE
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61 *
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62 * @author Artem Tikhomirov
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63 * @author TMate Software Ltd.
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64 */
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65 public class HgCloneCommand extends HgAbstractCommand<HgCloneCommand> {
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66
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67 private File destination;
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68 private HgRemoteRepository srcRepo;
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69
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70 public HgCloneCommand() {
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71 }
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72
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73 /**
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74 * @param folder location to become root of the repository (i.e. where <em>.hg</em> folder would reside). Either
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75 * shall not exist or be empty otherwise.
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76 * @return <code>this</code> for convenience
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77 */
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78 public HgCloneCommand destination(File folder) {
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79 destination = folder;
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80 return this;
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81 }
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83 public HgCloneCommand source(HgRemoteRepository hgRemote) {
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84 srcRepo = hgRemote;
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85 return this;
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86 }
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87
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88 /**
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89 *
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90 * @return
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91 * @throws HgBadArgumentException
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92 * @throws HgRemoteConnectionException
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93 * @throws HgRepositoryNotFoundException
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94 * @throws HgException
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95 * @throws CancelledException
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96 */
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97 public HgRepository execute() throws HgException, CancelledException {
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98 if (destination == null) {
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99 throw new IllegalArgumentException("Destination not set", null);
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100 }
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101 if (srcRepo == null || srcRepo.isInvalid()) {
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102 throw new HgBadArgumentException("Bad source repository", null);
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103 }
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104 if (destination.exists()) {
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105 if (!destination.isDirectory()) {
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106 throw new HgBadArgumentException(String.format("%s is not a directory", destination), null);
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107 } else if (destination.list().length > 0) {
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108 throw new HgBadArgumentException(String.format("%s shall be empty", destination), null);
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109 }
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110 } else {
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111 destination.mkdirs();
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112 }
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113 ProgressSupport progress = getProgressSupport(null);
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114 CancelSupport cancel = getCancelSupport(null, true);
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115 cancel.checkCancelled();
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116 // if cloning remote repo, which can stream and no revision is specified -
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117 // can use 'stream_out' wireproto
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118 //
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119 try {
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120 // pull all changes from the very beginning
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121 // XXX consult getContext() if by any chance has a bundle ready, if not, then read and register
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122 HgBundle completeChanges = srcRepo.getChanges(Collections.singletonList(NULL));
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123 cancel.checkCancelled();
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124 WriteDownMate mate = new WriteDownMate(srcRepo.getSessionContext(), destination, progress, cancel);
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125 try {
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126 // instantiate new repo in the destdir
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127 mate.initEmptyRepository();
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128 // pull changes
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129 completeChanges.inspectAll(mate);
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130 mate.checkFailure();
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131 mate.complete();
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132 } finally {
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133 completeChanges.unlink();
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134 progress.done();
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135 }
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136 } catch (HgRuntimeException ex) {
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137 throw new HgLibraryFailureException(ex);
186
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138 }
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139 return new HgLookup().detect(destination);
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140 }
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141
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142
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143 // 1. process changelog, memorize nodeids to index
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144 // 2. process manifest, using map from step 3, collect manifest nodeids
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145 // 3. process every file, using map from 3, and consult set from step 4 to ensure repo is correct
512
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146 private static class WriteDownMate implements HgBundle.Inspector, Lifecycle {
186
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147 private final File hgDir;
190
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148 private final PathRewrite storagePathHelper;
512
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149 private final ProgressSupport progressSupport;
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150 private final CancelSupport cancelSupport;
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151 private final SessionContext ctx;
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152 private final Path.Source pathFactory;
186
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153 private FileOutputStream indexFile;
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154 private File currentFile;
190
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155 private String filename; // human-readable name of the file being written, for log/exception purposes
186
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156
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157 private final TreeMap<Nodeid, Integer> changelogIndexes = new TreeMap<Nodeid, Integer>();
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158 private boolean collectChangelogIndexes = false;
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159
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160 private DataAccess prevRevContent;
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161 private final DigestHelper dh = new DigestHelper();
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162 // recently processed nodes last, so that index in the array may be used as a linkRevision or baseRevision
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163 private final ArrayList<Nodeid> revisionSequence = new ArrayList<Nodeid>();
186
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164
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165 private FNCacheFile fncacheFile;
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166 private RepoInitializer repoInit;
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167 private Lifecycle.Callback lifecycleCallback;
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168 private CancelledException cancelException;
186
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169
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170 private RevlogStreamWriter.HeaderWriter revlogHeader = new RevlogStreamWriter.HeaderWriter(true);
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171 private RevlogCompressor revlogDataZip;
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172
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173 public WriteDownMate(SessionContext sessionCtx, File destDir, ProgressSupport progress, CancelSupport cancel) {
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174 ctx = sessionCtx;
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175 hgDir = new File(destDir, ".hg");
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176 repoInit = new RepoInitializer();
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177 repoInit.setRequires(REVLOGV1 | STORE | FNCACHE | DOTENCODE);
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178 storagePathHelper = repoInit.buildDataFilesHelper(sessionCtx);
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179 progressSupport = progress;
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180 cancelSupport = cancel;
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181 revlogDataZip = new RevlogCompressor(sessionCtx);
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182 pathFactory = ctx.getPathFactory();
186
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183 }
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184
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185 public void initEmptyRepository() throws HgIOException, HgRepositoryNotFoundException {
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186 repoInit.initEmptyRepository(hgDir);
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187 assert (repoInit.getRequires() & FNCACHE) != 0;
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188 // XXX perhaps, with WriteDownMate moving to a more appropriate location,
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189 // we could instantiate HgRepository (or Internals) by other means, without exception?
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190 fncacheFile = new FNCacheFile(Internals.getInstance(new HgLookup(ctx).detect(hgDir)));
186
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191 }
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192
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193 public void complete() throws HgIOException {
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194 fncacheFile.write(new Transaction.NoRollback());
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195 }
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196
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197 public void changelogStart() throws HgInvalidControlFileException {
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198 try {
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199 revlogHeader.offset(0).baseRevision(-1);
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200 revisionSequence.clear();
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201 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00changelog.i"));
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202 collectChangelogIndexes = true;
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203 } catch (IOException ex) {
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204 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
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205 }
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206 stopIfCancelled();
186
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207 }
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208
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209 public void changelogEnd() throws HgInvalidControlFileException {
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210 try {
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211 clearPreviousContent();
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212 collectChangelogIndexes = false;
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213 closeIndexFile();
186
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214 } catch (IOException ex) {
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215 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
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216 }
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217 progressSupport.worked(1);
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218 stopIfCancelled();
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219 }
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220
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221 public void manifestStart() throws HgInvalidControlFileException {
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222 try {
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223 revlogHeader.offset(0).baseRevision(-1);
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224 revisionSequence.clear();
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225 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00manifest.i"));
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226 } catch (IOException ex) {
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227 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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228 }
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229 stopIfCancelled();
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230 }
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231
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232 public void manifestEnd() throws HgInvalidControlFileException {
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233 try {
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234 clearPreviousContent();
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235 closeIndexFile();
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236 } catch (IOException ex) {
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237 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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238 }
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239 progressSupport.worked(1);
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240 stopIfCancelled();
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241 }
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242
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243 public void fileStart(String name) throws HgInvalidControlFileException {
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244 try {
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245 revlogHeader.offset(0).baseRevision(-1);
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246 revisionSequence.clear();
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247 File file = new File(hgDir, filename = storagePathHelper.rewrite(name).toString());
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248 file.getParentFile().mkdirs();
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249 indexFile = new FileOutputStream(currentFile = file);
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250 } catch (IOException ex) {
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251 String m = String.format("Failed to write file %s", filename);
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252 throw new HgInvalidControlFileException(m, ex, new File(filename));
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253 }
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254 stopIfCancelled();
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255 }
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256
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257 public void fileEnd(String name) throws HgInvalidControlFileException {
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258 try {
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259 fncacheFile.addIndex(pathFactory.path(name));
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260 clearPreviousContent();
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261 closeIndexFile();
186
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262 } catch (IOException ex) {
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263 String m = String.format("Failed to write file %s", filename);
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264 throw new HgInvalidControlFileException(m, ex, new File(filename));
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265 }
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266 progressSupport.worked(1);
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267 stopIfCancelled();
186
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268 }
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269
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270 private void clearPreviousContent() {
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271 if (prevRevContent != null) {
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272 prevRevContent.done();
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273 prevRevContent = null;
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274 }
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275 }
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276
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277 private void closeIndexFile() throws IOException {
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278 indexFile.close();
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279 indexFile = null;
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280 filename = null;
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281 currentFile = null;
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282 }
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283
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284 private int knownRevision(Nodeid p) throws HgInvalidControlFileException {
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285 if (p.isNull()) {
186
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286 return -1;
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287 } else {
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288 for (int i = revisionSequence.size() - 1; i >= 0; i--) {
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289 if (revisionSequence.get(i).equals(p)) {
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290 return i;
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291 }
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292 }
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293 }
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294 String m = String.format("Can't find index of %s for file %s", p.shortNotation(), filename);
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295 throw new HgInvalidControlFileException(m, null, new File(hgDir, filename)).setRevision(p);
186
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296 }
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297
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298 public boolean element(GroupElement ge) throws HgRuntimeException {
186
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299 try {
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300 assert indexFile != null;
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301 boolean writeComplete = false;
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302 Nodeid deltaBase = ge.patchBase();
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303 if (deltaBase.isNull()) {
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304 // NOTE, can't use both parents isNull == true to empty prevRevContent
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305 // see build.gradle sample below why.
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306 prevRevContent = new DataAccess(); // empty data
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307 writeComplete = true;
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308 // if (writeComplete) would set baseRevision correctly,
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309 } else {
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310 Nodeid prevRevision = revisionSequence.size() > 0 ? revisionSequence.get(revisionSequence.size()-1) : Nodeid.NULL;
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311 if (!prevRevision.equals(deltaBase)) {
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312 // presently, bundle group elements always patch previous, see
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313 // (a) changegroup.py#builddeltaheader(): # do nothing with basenode, it is implicitly the previous one in HG10
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314 // (b) revlog.py#group(): prev, curr = revs[r], revs[r + 1]
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315 // for c in bundler.revchunk(self, curr, prev):
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316 // so there's no reason to have code here to extract contents of deltaBase revision
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317 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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318 throw new HgInvalidStateException(m);
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319 }
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320 }
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321 //
673
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322 Patch patch = HgInternals.patchFromData(ge);
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323 byte[] content = patch.apply(prevRevContent, -1);
186
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324 Nodeid p1 = ge.firstParent();
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325 Nodeid p2 = ge.secondParent();
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326 byte[] calculated = dh.sha1(p1, p2, content).asBinary();
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327 final Nodeid node = ge.node();
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328 if (!node.equalsTo(calculated)) {
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329 String m = String.format("Checksum failed: expected %s, calculated %s. File %s", node, calculated, filename);
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330 throw new HgRevisionIntegrityException(m, null, new File(hgDir, filename));
186
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331 }
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332 revlogHeader.nodeid(node);
532
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333 //
186
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334 if (collectChangelogIndexes) {
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335 changelogIndexes.put(node, revisionSequence.size());
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336 revlogHeader.linkRevision(revisionSequence.size());
186
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337 } else {
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338 Integer csRev = changelogIndexes.get(ge.cset());
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339 if (csRev == null) {
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340 throw new HgInvalidStateException(String.format("Changelog doesn't contain revision %s of %s", ge.cset().shortNotation(), filename));
186
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341 }
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342 revlogHeader.linkRevision(csRev.intValue());
186
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343 }
532
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344 //
530
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345 revlogHeader.parents(knownRevision(p1), knownRevision(p2));
532
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346 //
673
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347 int patchSerializedLength = patch.serializedLength();
532
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348 // no reason to keep patch if it's close (here, >75%) in size to the complete contents,
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349 // save patching effort in this case
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350 writeComplete = writeComplete || preferCompleteOverPatch(patchSerializedLength, content.length);
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351
186
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352 if (writeComplete) {
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353 revlogHeader.baseRevision(revisionSequence.size());
186
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354 }
532
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355 assert revlogHeader.baseRevision() >= 0;
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356
673
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357 DataSerializer.DataSource dataSource = writeComplete ? new ByteArrayDataSource(content) : patch.new PatchDataSource();
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358 revlogDataZip.reset(dataSource);
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359 final int compressedLen;
673
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360 final boolean useUncompressedData = preferCompressedOverComplete(revlogDataZip.getCompressedLength(), dataSource.serializeLength());
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361 if (useUncompressedData) {
186
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362 // compression wasn't too effective,
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363 compressedLen = dataSource.serializeLength() + 1 /*1 byte for 'u' - uncompressed prefix byte*/;
186
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364 } else {
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365 compressedLen= revlogDataZip.getCompressedLength();
186
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366 }
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367
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368 revlogHeader.length(content.length, compressedLen);
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369
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370 // XXX may be wise not to create DataSerializer for each revision, but for a file
618
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371 DataSerializer sds = new DataSerializer() {
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372 @Override
618
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373 public void write(byte[] data, int offset, int length) throws HgIOException {
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374 try {
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375 indexFile.write(data, offset, length);
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376 } catch (IOException ex) {
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377 throw new HgIOException("Write failure", ex, currentFile);
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378 }
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379 }
534
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380 };
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381 revlogHeader.serialize(sds);
186
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382
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383 if (useUncompressedData) {
673
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384 sds.writeByte((byte) 'u');
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385 dataSource.serialize(sds);
186
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386 } else {
534
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387 int actualCompressedLenWritten = revlogDataZip.writeCompressedData(sds);
530
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388 if (actualCompressedLenWritten != compressedLen) {
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389 throw new HgInvalidStateException(String.format("Expected %d bytes of compressed data, but actually wrote %d in %s", compressedLen, actualCompressedLenWritten, filename));
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390 }
186
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391 }
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392 sds.done();
186
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393 //
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394 revisionSequence.add(node);
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395 prevRevContent.done();
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396 prevRevContent = new ByteArrayDataAccess(content);
618
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397 } catch (HgIOException ex) {
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398 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
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399 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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400 } catch (IOException ex) {
423
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401 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
618
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402 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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403 }
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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404 return cancelException == null;
186
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405 }
530
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diff changeset
406 /*
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407 $ hg debugindex build.gradle
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diff changeset
408 rev offset length base linkrev nodeid p1 p2
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409 0 0 857 0 454 b2a1b20d1933 000000000000 000000000000
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410 1 857 319 0 455 5324c8f2b550 b2a1b20d1933 000000000000
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411 2 1176 533 0 460 4011d52141cd 5324c8f2b550 000000000000
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412 3 1709 85 0 463 d0be58845306 4011d52141cd 000000000000
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413 4 1794 105 0 464 3ddd456244a0 d0be58845306 000000000000
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414 5 1899 160 0 466 a3f374fbf33a 3ddd456244a0 000000000000
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415 6 2059 133 0 468 0227d28e0db6 a3f374fbf33a 000000000000
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416
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diff changeset
417 once we get a bundle for this repository and look into it for the same file:
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418
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 $hg debugbundle -a /tmp/hg-bundle-4418325145435980614.tmp
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 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
421
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 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
423 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
424 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
425 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
426 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
427 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
428 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
429 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
430 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
431
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
432 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
433
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 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
435
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 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
437 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
438 $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
439 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
440 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
441 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
442 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
443 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
444 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
445 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
446 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
447 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
448
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
449 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
450 */
512
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 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
453 progressSupport.start(count);
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
454 lifecycleCallback = callback;
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 finish(Object token) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
458 progressSupport.done();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
459 lifecycleCallback = null;
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 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
463 if (cancelException != null) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
464 throw cancelException;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
465 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
466 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
467
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
468 private void stopIfCancelled() {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
469 try {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
470 cancelSupport.checkCancelled();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
471 return;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
472 } catch (CancelledException ex) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
473 cancelException = ex;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
474 lifecycleCallback.stop();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
475 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
476 }
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
477 }
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
478 }