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annotate src/org/tmatesoft/hg/core/HgCloneCommand.java @ 655:bcbcc318f250

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Performance: reuse unzip output buffer
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 04 Jul 2013 18:36:38 +0200
parents 4a0bab2c6da1
children ae2d439fbed3
rev   line source
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1 /*
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2 * Copyright (c) 2011-2013 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.core;
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19 import static org.tmatesoft.hg.core.Nodeid.NULL;
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20 import static org.tmatesoft.hg.internal.RequiresFile.*;
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21 import static org.tmatesoft.hg.internal.RevlogStreamWriter.preferCompleteOverPatch;
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22 import static org.tmatesoft.hg.internal.RevlogStreamWriter.preferCompressedOverComplete;
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23
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24 import java.io.File;
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25 import java.io.FileOutputStream;
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26 import java.io.IOException;
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27 import java.util.ArrayList;
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28 import java.util.Collections;
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29 import java.util.TreeMap;
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30
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31 import org.tmatesoft.hg.internal.ByteArrayDataAccess;
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32 import org.tmatesoft.hg.internal.DataAccess;
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33 import org.tmatesoft.hg.internal.DataSerializer;
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34 import org.tmatesoft.hg.internal.DigestHelper;
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35 import org.tmatesoft.hg.internal.FNCacheFile;
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36 import org.tmatesoft.hg.internal.Internals;
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37 import org.tmatesoft.hg.internal.Lifecycle;
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38 import org.tmatesoft.hg.internal.RepoInitializer;
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39 import org.tmatesoft.hg.internal.RevlogCompressor;
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40 import org.tmatesoft.hg.internal.RevlogStreamWriter;
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41 import org.tmatesoft.hg.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 */
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94 public HgRepository execute() throws HgException, CancelledException {
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95 if (destination == null) {
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96 throw new IllegalArgumentException("Destination not set", null);
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97 }
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98 if (srcRepo == null || srcRepo.isInvalid()) {
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99 throw new HgBadArgumentException("Bad source repository", null);
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100 }
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101 if (destination.exists()) {
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102 if (!destination.isDirectory()) {
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103 throw new HgBadArgumentException(String.format("%s is not a directory", destination), null);
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104 } else if (destination.list().length > 0) {
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105 throw new HgBadArgumentException(String.format("%s shall be empty", destination), null);
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106 }
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107 } else {
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108 destination.mkdirs();
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109 }
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110 ProgressSupport progress = getProgressSupport(null);
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111 CancelSupport cancel = getCancelSupport(null, true);
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112 cancel.checkCancelled();
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113 // if cloning remote repo, which can stream and no revision is specified -
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114 // can use 'stream_out' wireproto
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115 //
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116 try {
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117 // pull all changes from the very beginning
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118 // XXX consult getContext() if by any chance has a bundle ready, if not, then read and register
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119 HgBundle completeChanges = srcRepo.getChanges(Collections.singletonList(NULL));
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120 cancel.checkCancelled();
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121 WriteDownMate mate = new WriteDownMate(srcRepo.getSessionContext(), destination, progress, cancel);
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122 try {
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123 // instantiate new repo in the destdir
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124 mate.initEmptyRepository();
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125 // pull changes
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126 completeChanges.inspectAll(mate);
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127 mate.checkFailure();
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128 mate.complete();
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129 } catch (IOException ex) {
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130 throw new HgInvalidFileException(getClass().getName(), ex);
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131 } finally {
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132 completeChanges.unlink();
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133 progress.done();
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134 }
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135 } catch (HgRuntimeException ex) {
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136 throw new HgLibraryFailureException(ex);
186
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137 }
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138 return new HgLookup().detect(destination);
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139 }
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140
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141
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142 // 1. process changelog, memorize nodeids to index
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143 // 2. process manifest, using map from step 3, collect manifest nodeids
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144 // 3. process every file, using map from 3, and consult set from step 4 to ensure repo is correct
512
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145 private static class WriteDownMate implements HgBundle.Inspector, Lifecycle {
186
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146 private final File hgDir;
190
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147 private final PathRewrite storagePathHelper;
512
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148 private final ProgressSupport progressSupport;
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149 private final CancelSupport cancelSupport;
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150 private final SessionContext ctx;
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151 private final Path.Source pathFactory;
186
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152 private FileOutputStream indexFile;
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153 private File currentFile;
190
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154 private String filename; // human-readable name of the file being written, for log/exception purposes
186
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155
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156 private final TreeMap<Nodeid, Integer> changelogIndexes = new TreeMap<Nodeid, Integer>();
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157 private boolean collectChangelogIndexes = false;
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158
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159 private DataAccess prevRevContent;
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160 private final DigestHelper dh = new DigestHelper();
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161 // recently processed nodes last, so that index in the array may be used as a linkRevision or baseRevision
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162 private final ArrayList<Nodeid> revisionSequence = new ArrayList<Nodeid>();
186
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163
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164 private FNCacheFile fncacheFile;
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165 private RepoInitializer repoInit;
512
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166 private Lifecycle.Callback lifecycleCallback;
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167 private CancelledException cancelException;
186
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168
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169 private RevlogStreamWriter.HeaderWriter revlogHeader = new RevlogStreamWriter.HeaderWriter(true);
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170 private RevlogCompressor revlogDataZip;
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171
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172 public WriteDownMate(SessionContext sessionCtx, File destDir, ProgressSupport progress, CancelSupport cancel) {
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173 ctx = sessionCtx;
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174 hgDir = new File(destDir, ".hg");
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175 repoInit = new RepoInitializer();
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176 repoInit.setRequires(REVLOGV1 | STORE | FNCACHE | DOTENCODE);
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177 storagePathHelper = repoInit.buildDataFilesHelper(sessionCtx);
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178 progressSupport = progress;
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179 cancelSupport = cancel;
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180 revlogDataZip = new RevlogCompressor(sessionCtx);
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181 pathFactory = ctx.getPathFactory();
186
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182 }
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183
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184 public void initEmptyRepository() throws HgIOException, HgRepositoryNotFoundException {
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185 repoInit.initEmptyRepository(hgDir);
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186 assert (repoInit.getRequires() & FNCACHE) != 0;
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187 // XXX perhaps, with WriteDownMate moving to a more appropriate location,
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188 // we could instantiate HgRepository (or Internals) by other means, without exception?
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189 fncacheFile = new FNCacheFile(Internals.getInstance(new HgLookup(ctx).detect(hgDir)));
186
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190 }
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191
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192 public void complete() throws IOException {
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193 fncacheFile.write();
186
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194 }
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195
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196 public void changelogStart() throws HgInvalidControlFileException {
186
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197 try {
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198 revlogHeader.offset(0).baseRevision(-1);
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199 revisionSequence.clear();
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200 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00changelog.i"));
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201 collectChangelogIndexes = true;
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202 } catch (IOException ex) {
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203 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
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204 }
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205 stopIfCancelled();
186
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206 }
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207
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208 public void changelogEnd() throws HgInvalidControlFileException {
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209 try {
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210 clearPreviousContent();
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211 collectChangelogIndexes = false;
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212 closeIndexFile();
186
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213 } catch (IOException ex) {
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214 throw new HgInvalidControlFileException("Failed to write changelog", ex, new File(hgDir, filename));
186
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215 }
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216 progressSupport.worked(1);
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217 stopIfCancelled();
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218 }
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219
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220 public void manifestStart() throws HgInvalidControlFileException {
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221 try {
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222 revlogHeader.offset(0).baseRevision(-1);
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223 revisionSequence.clear();
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224 indexFile = new FileOutputStream(currentFile = new File(hgDir, filename = "store/00manifest.i"));
186
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225 } catch (IOException ex) {
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226 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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227 }
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228 stopIfCancelled();
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229 }
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230
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231 public void manifestEnd() throws HgInvalidControlFileException {
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232 try {
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233 clearPreviousContent();
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234 closeIndexFile();
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235 } catch (IOException ex) {
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236 throw new HgInvalidControlFileException("Failed to write manifest", ex, new File(hgDir, filename));
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237 }
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238 progressSupport.worked(1);
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239 stopIfCancelled();
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240 }
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241
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242 public void fileStart(String name) throws HgInvalidControlFileException {
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243 try {
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244 revlogHeader.offset(0).baseRevision(-1);
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245 revisionSequence.clear();
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246 File file = new File(hgDir, filename = storagePathHelper.rewrite(name).toString());
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247 file.getParentFile().mkdirs();
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248 indexFile = new FileOutputStream(currentFile = file);
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249 } catch (IOException ex) {
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250 String m = String.format("Failed to write file %s", filename);
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251 throw new HgInvalidControlFileException(m, ex, new File(filename));
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252 }
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253 stopIfCancelled();
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254 }
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255
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256 public void fileEnd(String name) throws HgInvalidControlFileException {
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257 try {
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258 fncacheFile.addIndex(pathFactory.path(name));
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259 clearPreviousContent();
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260 closeIndexFile();
186
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261 } catch (IOException ex) {
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262 String m = String.format("Failed to write file %s", filename);
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263 throw new HgInvalidControlFileException(m, ex, new File(filename));
186
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264 }
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265 progressSupport.worked(1);
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266 stopIfCancelled();
186
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267 }
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268
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269 private void clearPreviousContent() {
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270 if (prevRevContent != null) {
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271 prevRevContent.done();
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272 prevRevContent = null;
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273 }
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274 }
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275
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276 private void closeIndexFile() throws IOException {
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277 indexFile.close();
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278 indexFile = null;
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279 filename = null;
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280 currentFile = null;
532
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281 }
186
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282
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283 private int knownRevision(Nodeid p) throws HgInvalidControlFileException {
274
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284 if (p.isNull()) {
186
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285 return -1;
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286 } else {
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287 for (int i = revisionSequence.size() - 1; i >= 0; i--) {
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288 if (revisionSequence.get(i).equals(p)) {
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289 return i;
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290 }
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291 }
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292 }
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293 String m = String.format("Can't find index of %s for file %s", p.shortNotation(), filename);
532
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294 throw new HgInvalidControlFileException(m, null, new File(hgDir, filename)).setRevision(p);
186
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295 }
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296
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297 public boolean element(GroupElement ge) throws HgRuntimeException {
186
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298 try {
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299 assert indexFile != null;
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300 boolean writeComplete = false;
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301 Nodeid deltaBase = ge.patchBase();
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302 if (deltaBase.isNull()) {
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303 // NOTE, can't use both parents isNull == true to empty prevRevContent
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304 // see build.gradle sample below why.
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305 prevRevContent = new DataAccess(); // empty data
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306 writeComplete = true;
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307 // if (writeComplete) would set baseRevision correctly,
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308 } else {
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309 Nodeid prevRevision = revisionSequence.size() > 0 ? revisionSequence.get(revisionSequence.size()-1) : Nodeid.NULL;
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310 if (!prevRevision.equals(deltaBase)) {
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311 // presently, bundle group elements always patch previous, see
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312 // (a) changegroup.py#builddeltaheader(): # do nothing with basenode, it is implicitly the previous one in HG10
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313 // (b) revlog.py#group(): prev, curr = revs[r], revs[r + 1]
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314 // for c in bundler.revchunk(self, curr, prev):
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315 // so there's no reason to have code here to extract contents of deltaBase revision
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316 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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317 throw new HgInvalidStateException(m);
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318 }
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319 }
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320 //
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321 byte[] content = ge.apply(prevRevContent.byteArray());
186
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322 Nodeid p1 = ge.firstParent();
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323 Nodeid p2 = ge.secondParent();
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324 byte[] calculated = dh.sha1(p1, p2, content).asBinary();
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325 final Nodeid node = ge.node();
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326 if (!node.equalsTo(calculated)) {
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327 String m = String.format("Checksum failed: expected %s, calculated %s. File %s", node, calculated, filename);
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328 throw new HgRevisionIntegrityException(m, null, new File(hgDir, filename));
186
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329 }
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330 revlogHeader.nodeid(node);
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331 //
186
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332 if (collectChangelogIndexes) {
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333 changelogIndexes.put(node, revisionSequence.size());
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334 revlogHeader.linkRevision(revisionSequence.size());
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335 } else {
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336 Integer csRev = changelogIndexes.get(ge.cset());
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337 if (csRev == null) {
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338 throw new HgInvalidStateException(String.format("Changelog doesn't contain revision %s of %s", ge.cset().shortNotation(), filename));
186
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339 }
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340 revlogHeader.linkRevision(csRev.intValue());
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341 }
532
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342 //
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343 revlogHeader.parents(knownRevision(p1), knownRevision(p2));
532
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344 //
358
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345 byte[] patchContent = ge.rawDataByteArray();
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346 // no reason to keep patch if it's close (here, >75%) in size to the complete contents,
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347 // save patching effort in this case
534
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348 writeComplete = writeComplete || preferCompleteOverPatch(patchContent.length, content.length);
532
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349
186
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350 if (writeComplete) {
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351 revlogHeader.baseRevision(revisionSequence.size());
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352 }
532
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353 assert revlogHeader.baseRevision() >= 0;
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354
358
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355 final byte[] sourceData = writeComplete ? content : patchContent;
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356 revlogDataZip.reset(new DataSerializer.ByteArrayDataSource(sourceData));
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357 final int compressedLen;
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358 final boolean useUncompressedData = preferCompressedOverComplete(revlogDataZip.getCompressedLength(), sourceData.length);
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359 if (useUncompressedData) {
186
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360 // compression wasn't too effective,
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361 compressedLen = sourceData.length + 1 /*1 byte for 'u' - uncompressed prefix byte*/;
186
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362 } else {
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363 compressedLen= revlogDataZip.getCompressedLength();
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364 }
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365
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366 revlogHeader.length(content.length, compressedLen);
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367
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368 // XXX may be wise not to create DataSerializer for each revision, but for a file
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369 DataSerializer sds = new DataSerializer() {
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370 @Override
618
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371 public void write(byte[] data, int offset, int length) throws HgIOException {
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372 try {
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373 indexFile.write(data, offset, length);
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374 } catch (IOException ex) {
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375 throw new HgIOException("Write failure", ex, currentFile);
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376 }
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377 }
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378 };
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379 revlogHeader.serialize(sds);
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380
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381 if (useUncompressedData) {
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382 indexFile.write((byte) 'u');
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383 indexFile.write(sourceData);
186
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384 } else {
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385 int actualCompressedLenWritten = revlogDataZip.writeCompressedData(sds);
530
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386 if (actualCompressedLenWritten != compressedLen) {
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387 throw new HgInvalidStateException(String.format("Expected %d bytes of compressed data, but actually wrote %d in %s", compressedLen, actualCompressedLenWritten, filename));
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388 }
186
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389 }
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390 sds.done();
186
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391 //
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392 revisionSequence.add(node);
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393 prevRevContent.done();
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394 prevRevContent = new ByteArrayDataAccess(content);
618
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395 } catch (HgIOException ex) {
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396 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
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397 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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398 } catch (IOException ex) {
423
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399 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
618
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400 throw new HgInvalidControlFileException(m, ex, currentFile);
186
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401 }
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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402 return cancelException == null;
186
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403 }
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404 /*
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405 $ hg debugindex build.gradle
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406 rev offset length base linkrev nodeid p1 p2
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407 0 0 857 0 454 b2a1b20d1933 000000000000 000000000000
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408 1 857 319 0 455 5324c8f2b550 b2a1b20d1933 000000000000
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409 2 1176 533 0 460 4011d52141cd 5324c8f2b550 000000000000
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410 3 1709 85 0 463 d0be58845306 4011d52141cd 000000000000
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411 4 1794 105 0 464 3ddd456244a0 d0be58845306 000000000000
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412 5 1899 160 0 466 a3f374fbf33a 3ddd456244a0 000000000000
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413 6 2059 133 0 468 0227d28e0db6 a3f374fbf33a 000000000000
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414
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diff changeset
415 once we get a bundle for this repository and look into it for the same file:
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416
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417 $hg debugbundle -a /tmp/hg-bundle-4418325145435980614.tmp
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diff changeset
418 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
419
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 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
421 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
422 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
423 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
424 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
425 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
426 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
427 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
428 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
429
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
430 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
431
0f6fa88e2162 Towards commit command: refactor clone, extract pieces to reuse. Describe a defect discovered when bundle has few patches with 0,0 parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 513
diff changeset
432 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
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 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
435 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
436 $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
437 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
438 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
439 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
440 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
441 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
442 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
443 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
444 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
445 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
446
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 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
448 */
512
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
449
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
450 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
451 progressSupport.start(count);
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
452 lifecycleCallback = callback;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
453 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
454
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
455 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
456 progressSupport.done();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
457 lifecycleCallback = null;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
458 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
459
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
460 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
461 if (cancelException != null) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
462 throw cancelException;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
463 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
464 }
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 private void stopIfCancelled() {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
467 try {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
468 cancelSupport.checkCancelled();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
469 return;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
470 } catch (CancelledException ex) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
471 cancelException = ex;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
472 lifecycleCallback.stop();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
473 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
474 }
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
475 }
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
476 }