annotate src/org/tmatesoft/hg/core/HgCloneCommand.java @ 567:88f04c7cfedb

Added tag v1.1m3 for changeset 32453f30de07
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 09 Apr 2013 19:27:32 +0200
parents 9edfd5a223b8
children e4ee4bf4c7d0
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.DataAccessProvider;
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34 import org.tmatesoft.hg.internal.DataSerializer;
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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.RepoInitializer;
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40 import org.tmatesoft.hg.internal.RevlogCompressor;
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41 import org.tmatesoft.hg.internal.RevlogStreamWriter;
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42 import org.tmatesoft.hg.repo.HgBundle;
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43 import org.tmatesoft.hg.repo.HgBundle.GroupElement;
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44 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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45 import org.tmatesoft.hg.repo.HgInvalidFileException;
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46 import org.tmatesoft.hg.repo.HgInvalidStateException;
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47 import org.tmatesoft.hg.repo.HgLookup;
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48 import org.tmatesoft.hg.repo.HgRemoteRepository;
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49 import org.tmatesoft.hg.repo.HgRepository;
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50 import org.tmatesoft.hg.repo.HgRuntimeException;
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51 import org.tmatesoft.hg.util.CancelSupport;
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52 import org.tmatesoft.hg.util.CancelledException;
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53 import org.tmatesoft.hg.util.Path;
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54 import org.tmatesoft.hg.util.PathRewrite;
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55 import org.tmatesoft.hg.util.ProgressSupport;
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57 /**
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58 * WORK IN PROGRESS, DO NOT USE
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59 *
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60 * @author Artem Tikhomirov
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61 * @author TMate Software Ltd.
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62 */
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63 public class HgCloneCommand extends HgAbstractCommand<HgCloneCommand> {
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64
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65 private File destination;
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66 private HgRemoteRepository srcRepo;
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68 public HgCloneCommand() {
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69 }
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70
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71 /**
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72 * @param folder location to become root of the repository (i.e. where <em>.hg</em> folder would reside). Either
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73 * shall not exist or be empty otherwise.
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74 * @return <code>this</code> for convenience
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75 */
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76 public HgCloneCommand destination(File folder) {
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77 destination = folder;
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78 return this;
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79 }
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81 public HgCloneCommand source(HgRemoteRepository hgRemote) {
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82 srcRepo = hgRemote;
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83 return this;
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84 }
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85
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86 /**
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87 *
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88 * @return
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89 * @throws HgBadArgumentException
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90 * @throws HgRemoteConnectionException
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91 * @throws HgRepositoryNotFoundException
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92 * @throws HgException
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93 * @throws CancelledException
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94 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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95 */
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96 public HgRepository execute() throws HgException, CancelledException {
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97 if (destination == null) {
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98 throw new IllegalArgumentException("Destination not set", null);
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99 }
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100 if (srcRepo == null || srcRepo.isInvalid()) {
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101 throw new HgBadArgumentException("Bad source repository", null);
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102 }
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103 if (destination.exists()) {
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104 if (!destination.isDirectory()) {
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105 throw new HgBadArgumentException(String.format("%s is not a directory", destination), null);
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106 } else if (destination.list().length > 0) {
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107 throw new HgBadArgumentException(String.format("%s shall be empty", destination), null);
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108 }
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109 } else {
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110 destination.mkdirs();
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111 }
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112 ProgressSupport progress = getProgressSupport(null);
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113 CancelSupport cancel = getCancelSupport(null, true);
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114 cancel.checkCancelled();
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115 // if cloning remote repo, which can stream and no revision is specified -
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116 // can use 'stream_out' wireproto
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117 //
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118 // pull all changes from the very beginning
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119 // XXX consult getContext() if by any chance has a bundle ready, if not, then read and register
186
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120 HgBundle completeChanges = srcRepo.getChanges(Collections.singletonList(NULL));
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121 cancel.checkCancelled();
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122 WriteDownMate mate = new WriteDownMate(srcRepo.getSessionContext(), destination, progress, cancel);
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123 try {
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124 // instantiate new repo in the destdir
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125 mate.initEmptyRepository();
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126 // pull changes
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127 completeChanges.inspectAll(mate);
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128 mate.checkFailure();
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129 mate.complete();
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130 } catch (IOException ex) {
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131 throw new HgInvalidFileException(getClass().getName(), ex);
186
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132 } finally {
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133 completeChanges.unlink();
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134 progress.done();
186
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135 }
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136 return new HgLookup().detect(destination);
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137 }
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138
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139
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140 // 1. process changelog, memorize nodeids to index
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141 // 2. process manifest, using map from step 3, collect manifest nodeids
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142 // 3. process every file, using map from 3, and consult set from step 4 to ensure repo is correct
512
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143 private static class WriteDownMate implements HgBundle.Inspector, Lifecycle {
186
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144 private final File hgDir;
190
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145 private final PathRewrite storagePathHelper;
512
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146 private final ProgressSupport progressSupport;
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147 private final CancelSupport cancelSupport;
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148 private final SessionContext ctx;
186
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149 private FileOutputStream indexFile;
190
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150 private String filename; // human-readable name of the file being written, for log/exception purposes
186
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151
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152 private final TreeMap<Nodeid, Integer> changelogIndexes = new TreeMap<Nodeid, Integer>();
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153 private boolean collectChangelogIndexes = false;
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154
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155 private DataAccess prevRevContent;
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156 private final DigestHelper dh = new DigestHelper();
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157 // recently processed nodes last, so that index in the array may be used as a linkRevision or baseRevision
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158 private final ArrayList<Nodeid> revisionSequence = new ArrayList<Nodeid>();
186
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159
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160 private FNCacheFile fncacheFile;
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161 private RepoInitializer repoInit;
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162 private Lifecycle.Callback lifecycleCallback;
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163 private CancelledException cancelException;
186
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164
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165 private RevlogStreamWriter.HeaderWriter revlogHeader = new RevlogStreamWriter.HeaderWriter(true);
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166 private RevlogCompressor revlogDataZip;
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167
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168 public WriteDownMate(SessionContext sessionCtx, File destDir, ProgressSupport progress, CancelSupport cancel) {
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169 ctx = sessionCtx;
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170 hgDir = new File(destDir, ".hg");
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171 repoInit = new RepoInitializer();
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172 repoInit.setRequires(STORE | FNCACHE | DOTENCODE);
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173 storagePathHelper = repoInit.buildDataFilesHelper(sessionCtx);
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174 progressSupport = progress;
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175 cancelSupport = cancel;
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176 revlogDataZip = new RevlogCompressor(sessionCtx);
186
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177 }
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178
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179 public void initEmptyRepository() throws IOException {
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180 repoInit.initEmptyRepository(hgDir);
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181 try {
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182 assert (repoInit.getRequires() & FNCACHE) != 0;
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183 fncacheFile = new FNCacheFile(Internals.getInstance(new HgLookup(ctx).detect(hgDir)));
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184 } catch (HgRepositoryNotFoundException ex) {
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185 // SHALL NOT HAPPEN provided we initialized empty repository successfully
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186 // TODO perhaps, with WriteDownMate moving to a more appropriate location,
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187 // we could instantiate HgRepository (or Internals) by other means, without exception?
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188 throw new IOException("Can't access fncache for newly created repository", ex);
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189 }
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() {
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197 try {
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198 revlogHeader.offset(0).baseRevision(-1);
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199 revisionSequence.clear();
190
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200 indexFile = new FileOutputStream(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));
186
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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() {
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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();
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213 } catch (IOException ex) {
532
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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();
186
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218 }
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219
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220 public void manifestStart() {
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221 try {
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222 revlogHeader.offset(0).baseRevision(-1);
186
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223 revisionSequence.clear();
190
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224 indexFile = new FileOutputStream(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));
186
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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() {
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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));
186
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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) {
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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 fncacheFile.add(Path.create(name));
292
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247 File file = new File(hgDir, filename = storagePathHelper.rewrite(name).toString());
186
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248 file.getParentFile().mkdirs();
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249 indexFile = new FileOutputStream(file);
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250 } catch (IOException ex) {
423
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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));
186
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253 }
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254 stopIfCancelled();
186
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255 }
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256
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257 public void fileEnd(String name) {
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258 try {
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259 clearPreviousContent();
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260 closeIndexFile();
186
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261 } catch (IOException ex) {
423
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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 }
532
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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 }
186
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281
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282 private int knownRevision(Nodeid p) {
274
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283 if (p.isNull()) {
186
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284 return -1;
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285 } else {
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286 for (int i = revisionSequence.size() - 1; i >= 0; i--) {
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287 if (revisionSequence.get(i).equals(p)) {
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288 return i;
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289 }
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290 }
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291 }
423
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292 String m = String.format("Can't find index of %s for file %s", p.shortNotation(), filename);
532
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293 throw new HgInvalidControlFileException(m, null, new File(hgDir, filename)).setRevision(p);
186
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294 }
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295
186
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296 public boolean element(GroupElement ge) {
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297 try {
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298 assert indexFile != null;
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299 boolean writeComplete = false;
532
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300 Nodeid deltaBase = ge.patchBase();
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301 if (deltaBase.isNull()) {
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302 // NOTE, can't use both parents isNull == true to empty prevRevContent
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303 // see build.gradle sample below why.
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304 prevRevContent = new DataAccess(); // empty data
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305 writeComplete = true;
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306 // if (writeComplete) would set baseRevision correctly,
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307 } else {
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308 Nodeid prevRevision = revisionSequence.size() > 0 ? revisionSequence.get(revisionSequence.size()-1) : Nodeid.NULL;
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309 if (!prevRevision.equals(deltaBase)) {
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310 // presently, bundle group elements always patch previous, see
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311 // (a) changegroup.py#builddeltaheader(): # do nothing with basenode, it is implicitly the previous one in HG10
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312 // (b) revlog.py#group(): prev, curr = revs[r], revs[r + 1]
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313 // for c in bundler.revchunk(self, curr, prev):
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314 // so there's no reason to have code here to extract contents of deltaBase revision
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315 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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316 throw new HgInvalidStateException(m);
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317 }
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318 }
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319 //
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320 byte[] content = ge.apply(prevRevContent.byteArray());
186
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321 Nodeid p1 = ge.firstParent();
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322 Nodeid p2 = ge.secondParent();
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323 byte[] calculated = dh.sha1(p1, p2, content).asBinary();
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324 final Nodeid node = ge.node();
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325 if (!node.equalsTo(calculated)) {
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326 String m = String.format("Checksum failed: expected %s, calculated %s. File %s", node, calculated, filename);
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327 throw new HgRevisionIntegrityException(m, null, new File(hgDir, filename));
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328 }
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329 revlogHeader.nodeid(node);
532
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330 //
186
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331 if (collectChangelogIndexes) {
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332 changelogIndexes.put(node, revisionSequence.size());
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333 revlogHeader.linkRevision(revisionSequence.size());
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334 } else {
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335 Integer csRev = changelogIndexes.get(ge.cset());
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336 if (csRev == null) {
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337 throw new HgInvalidStateException(String.format("Changelog doesn't contain revision %s of %s", ge.cset().shortNotation(), filename));
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338 }
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339 revlogHeader.linkRevision(csRev.intValue());
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340 }
532
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341 //
530
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342 revlogHeader.parents(knownRevision(p1), knownRevision(p2));
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343 //
358
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344 byte[] patchContent = ge.rawDataByteArray();
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345 // no reason to keep patch if it's close (here, >75%) in size to the complete contents,
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346 // save patching effort in this case
534
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347 writeComplete = writeComplete || preferCompleteOverPatch(patchContent.length, content.length);
532
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348
186
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349 if (writeComplete) {
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350 revlogHeader.baseRevision(revisionSequence.size());
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351 }
532
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352 assert revlogHeader.baseRevision() >= 0;
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353
358
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354 final byte[] sourceData = writeComplete ? content : patchContent;
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355 revlogDataZip.reset(new DataSerializer.ByteArrayDataSource(sourceData));
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356 final int compressedLen;
534
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357 final boolean useUncompressedData = preferCompressedOverComplete(revlogDataZip.getCompressedLength(), sourceData.length);
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358 if (useUncompressedData) {
186
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359 // compression wasn't too effective,
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360 compressedLen = sourceData.length + 1 /*1 byte for 'u' - uncompressed prefix byte*/;
186
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361 } else {
534
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362 compressedLen= revlogDataZip.getCompressedLength();
186
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363 }
530
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364
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365 revlogHeader.length(content.length, compressedLen);
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366
534
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367 // XXX may be wise not to create DataSerializer for each revision, but for a file
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368 DataAccessProvider.StreamDataSerializer sds = new DataAccessProvider.StreamDataSerializer(ctx.getLog(), indexFile) {
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369 @Override
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370 public void done() {
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371 // override parent behavior not to close stream in use
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372 }
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373 };
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374 revlogHeader.serialize(sds);
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375
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376 if (useUncompressedData) {
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377 indexFile.write((byte) 'u');
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378 indexFile.write(sourceData);
186
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379 } else {
534
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380 int actualCompressedLenWritten = revlogDataZip.writeCompressedData(sds);
530
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381 if (actualCompressedLenWritten != compressedLen) {
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382 throw new HgInvalidStateException(String.format("Expected %d bytes of compressed data, but actually wrote %d in %s", compressedLen, actualCompressedLenWritten, filename));
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383 }
186
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384 }
534
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385 sds.done();
186
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386 //
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387 revisionSequence.add(node);
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388 prevRevContent.done();
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389 prevRevContent = new ByteArrayDataAccess(content);
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390 } catch (IOException ex) {
423
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391 String m = String.format("Failed to write revision %s of file %s", ge.node().shortNotation(), filename);
531
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392 throw new HgInvalidControlFileException(m, ex, new File(hgDir, filename));
186
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393 }
513
a41d955dc360 Issue 39: HgCloneCommand doesn't use CancelSupport/ProgressSupport handlers
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394 return cancelException == null;
186
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395 }
530
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396 /*
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397 $ hg debugindex build.gradle
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398 rev offset length base linkrev nodeid p1 p2
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399 0 0 857 0 454 b2a1b20d1933 000000000000 000000000000
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400 1 857 319 0 455 5324c8f2b550 b2a1b20d1933 000000000000
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401 2 1176 533 0 460 4011d52141cd 5324c8f2b550 000000000000
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402 3 1709 85 0 463 d0be58845306 4011d52141cd 000000000000
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403 4 1794 105 0 464 3ddd456244a0 d0be58845306 000000000000
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404 5 1899 160 0 466 a3f374fbf33a 3ddd456244a0 000000000000
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405 6 2059 133 0 468 0227d28e0db6 a3f374fbf33a 000000000000
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406
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407 once we get a bundle for this repository and look into it for the same file:
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408
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409 $hg debugbundle -a /tmp/hg-bundle-4418325145435980614.tmp
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410 format: id, p1, p2, cset, delta base, len(delta)
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411
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412 build.gradle
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413 62a101b7994c6c5b0423ba6c802f8c64d24ef784 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 6ec4af642ba8024edd636af15e672c97cc3294e4 0000000000000000000000000000000000000000 1368
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414 b2a1b20d1933d0605aab6780ee52fe5ab3073832 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 7dcc920e2d57d5850ee9f08ac863251460565bd3 62a101b7994c6c5b0423ba6c802f8c64d24ef784 2373
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parents: 513
diff changeset
415 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
416 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
417 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
418 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
419 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
420 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
421
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
422 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
423
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 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
425
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 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
427 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
428 $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
429 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
430 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
431 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
432 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
433 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
434 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
435 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
436 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
437 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
438
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 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
440 */
512
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
441
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
442 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
443 progressSupport.start(count);
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
444 lifecycleCallback = callback;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
445 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
446
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
447 public void finish(Object token) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
448 progressSupport.done();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
449 lifecycleCallback = null;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
450 }
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
451
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
452 public void checkFailure() throws CancelledException {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
453 if (cancelException != null) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
454 throw cancelException;
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
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
458 private void stopIfCancelled() {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
459 try {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
460 cancelSupport.checkCancelled();
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
461 return;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
462 } catch (CancelledException ex) {
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
463 cancelException = ex;
10ca3ede8367 Issue 39: Progress and Cancel support for Clone command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
464 lifecycleCallback.stop();
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 }
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
467 }
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
468 }