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annotate src/org/tmatesoft/hg/repo/HgDataFile.java @ 619:868b2ffdcd5c

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Close FIS, not FileChannel, to clear both references to FileDescriptor right away
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 17 May 2013 22:04:23 +0200
parents e1b29756f901
children 99ad1e3a4e4d
rev   line source
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1 /*
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2 * Copyright (c) 2010-2013 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.repo;
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19 import static org.tmatesoft.hg.core.HgIterateDirection.OldToNew;
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20 import static org.tmatesoft.hg.repo.HgInternals.wrongRevisionIndex;
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21 import static org.tmatesoft.hg.repo.HgRepository.*;
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22 import static org.tmatesoft.hg.util.LogFacility.Severity.Info;
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23
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24 import java.io.File;
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25 import java.io.FileInputStream;
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26 import java.io.IOException;
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27 import java.nio.ByteBuffer;
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28 import java.nio.channels.FileChannel;
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29 import java.util.Arrays;
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30
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31 import org.tmatesoft.hg.core.HgCallbackTargetException;
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32 import org.tmatesoft.hg.core.HgChangesetFileSneaker;
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33 import org.tmatesoft.hg.core.HgIterateDirection;
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34 import org.tmatesoft.hg.core.Nodeid;
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35 import org.tmatesoft.hg.internal.BlameHelper;
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36 import org.tmatesoft.hg.internal.DataAccess;
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37 import org.tmatesoft.hg.internal.FileHistory;
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38 import org.tmatesoft.hg.internal.FileRevisionHistoryChunk;
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868b2ffdcd5c Close FIS, not FileChannel, to clear both references to FileDescriptor right away
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39 import org.tmatesoft.hg.internal.FileUtils;
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40 import org.tmatesoft.hg.internal.FilterByteChannel;
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41 import org.tmatesoft.hg.internal.FilterDataAccess;
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42 import org.tmatesoft.hg.internal.Internals;
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43 import org.tmatesoft.hg.internal.Metadata;
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44 import org.tmatesoft.hg.internal.RevlogStream;
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45 import org.tmatesoft.hg.util.ByteChannel;
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46 import org.tmatesoft.hg.util.CancelSupport;
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47 import org.tmatesoft.hg.util.CancelledException;
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48 import org.tmatesoft.hg.util.LogFacility;
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49 import org.tmatesoft.hg.util.Pair;
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50 import org.tmatesoft.hg.util.Path;
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51 import org.tmatesoft.hg.util.ProgressSupport;
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52
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53
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54 /**
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55 * Regular user data file stored in the repository.
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56 *
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57 * <p> Note, most methods accept index in the file's revision history, not that of changelog. Easy way to obtain
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58 * changeset revision index from file's is to use {@link #getChangesetRevisionIndex(int)}. To obtain file's revision
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59 * index for a given changeset, {@link HgManifest#getFileRevision(int, Path)} or {@link HgChangesetFileSneaker} may
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60 * come handy.
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61 *
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62 * @author Artem Tikhomirov
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63 * @author TMate Software Ltd.
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64 */
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65 public final class HgDataFile extends Revlog {
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66
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67 // absolute from repo root?
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68 // slashes, unix-style?
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69 // repo location agnostic, just to give info to user, not to access real storage
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70 private final Path path;
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71 private Metadata metadata; // get initialized on first access to file content.
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73 /*package-local*/HgDataFile(HgRepository hgRepo, Path filePath, RevlogStream content) {
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74 super(hgRepo, content, false);
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75 path = filePath;
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76 }
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78 /*package-local*/HgDataFile(HgRepository hgRepo, Path filePath) {
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79 super(hgRepo);
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80 path = filePath;
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81 }
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83 // exists is not the best name possible. now it means no file with such name was ever known to the repo.
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84 // it might be confused with files existed before but lately removed. TODO HgFileNode.exists makes more sense.
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85 // or HgDataFile.known()
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86 public boolean exists() {
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87 return content != null; // XXX need better impl
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88 }
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90 /**
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91 * Human-readable file name, i.e. "COPYING", not "store/data/_c_o_p_y_i_n_g.i"
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92 */
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93 public Path getPath() {
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94 return path; // hgRepo.backresolve(this) -> name? In this case, what about hashed long names?
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95 }
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96
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97 /**
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98 * Handy shorthand for {@link #getLength(int) length(getRevisionIndex(nodeid))}
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99 *
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100 * @param nodeid revision of the file
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101 *
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102 * @return size of the file content at the given revision
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103 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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104 */
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105 public int getLength(Nodeid nodeid) throws HgRuntimeException {
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106 try {
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107 return getLength(getRevisionIndex(nodeid));
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108 } catch (HgInvalidControlFileException ex) {
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109 throw ex.isRevisionSet() ? ex : ex.setRevision(nodeid);
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110 } catch (HgInvalidRevisionException ex) {
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111 throw ex.isRevisionSet() ? ex : ex.setRevision(nodeid);
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112 }
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113 }
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114
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115 /**
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116 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, only {@link HgRepository#TIP} makes sense.
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117 * @return size of the file content at the revision identified by local revision number.
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118 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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119 */
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120 public int getLength(int fileRevisionIndex) throws HgRuntimeException {
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121 if (wrongRevisionIndex(fileRevisionIndex) || fileRevisionIndex == BAD_REVISION) {
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122 throw new HgInvalidRevisionException(fileRevisionIndex);
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123 }
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124 if (fileRevisionIndex == TIP) {
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125 fileRevisionIndex = getLastRevision();
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126 } else if (fileRevisionIndex == WORKING_COPY) {
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127 File f = getRepo().getFile(this);
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128 if (f.exists()) {
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129 // single revision can't be greater than 2^32, shall be safe to cast to int
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130 return Internals.ltoi(f.length());
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131 }
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132 Nodeid fileRev = getWorkingCopyRevision();
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133 if (fileRev == null) {
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134 throw new HgInvalidRevisionException(String.format("File %s is not part of working copy", getPath()), null, fileRevisionIndex);
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135 }
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136 fileRevisionIndex = getRevisionIndex(fileRev);
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137 }
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138 if (metadata == null || !metadata.checked(fileRevisionIndex)) {
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139 checkAndRecordMetadata(fileRevisionIndex);
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140 }
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141 final int dataLen = content.dataLength(fileRevisionIndex);
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142 if (metadata.known(fileRevisionIndex)) {
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143 return dataLen - metadata.dataOffset(fileRevisionIndex);
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144 }
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145 return dataLen;
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146 }
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147
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148 /**
237
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149 * Reads content of the file from working directory. If file present in the working directory, its actual content without
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150 * any filters is supplied through the sink. If file does not exist in the working dir, this method provides content of a file
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151 * as if it would be refreshed in the working copy, i.e. its corresponding revision (according to dirstate) is read from the
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152 * repository, and filters repo -> working copy get applied.
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153 *
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154 * NOTE, if file is missing from the working directory and is not part of the dirstate (but otherwise legal repository file,
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155 * e.g. from another branch), no content would be supplied.
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156 *
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157 * @param sink content consumer
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158 * @throws CancelledException if execution of the operation was cancelled
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159 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
237
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160 */
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161 public void workingCopy(ByteChannel sink) throws CancelledException, HgRuntimeException {
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162 File f = getRepo().getFile(this);
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163 if (f.exists()) {
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164 final CancelSupport cs = CancelSupport.Factory.get(sink);
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165 final ProgressSupport progress = ProgressSupport.Factory.get(sink);
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166 final long flength = f.length();
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167 final int bsize = (int) Math.min(flength, 32*1024);
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168 progress.start((int) (flength > Integer.MAX_VALUE ? flength >>> 15 /*32 kb buf size*/ : flength));
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169 ByteBuffer buf = ByteBuffer.allocate(bsize);
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170 FileInputStream fis = null;
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171 try {
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172 fis = new FileInputStream(f);
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173 FileChannel fc = fis.getChannel();
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174 while (fc.read(buf) != -1) {
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175 cs.checkCancelled();
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176 buf.flip();
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177 int consumed = sink.write(buf);
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178 progress.worked(flength > Integer.MAX_VALUE ? 1 : consumed);
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179 buf.compact();
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180 }
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181 } catch (IOException ex) {
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182 throw new HgInvalidFileException("Working copy read failed", ex, f);
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183 } finally {
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184 progress.done();
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185 if (fis != null) {
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186 new FileUtils(getRepo().getSessionContext().getLog()).closeQuietly(fis);
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187 }
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188 }
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189 } else {
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190 Nodeid fileRev = getWorkingCopyRevision();
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191 if (fileRev == null) {
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192 // no content for this data file in the working copy - it is not part of the actual working state.
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193 // XXX perhaps, shall report this to caller somehow, not silently pass no data?
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194 return;
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195 }
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196 final int fileRevIndex = getRevisionIndex(fileRev);
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197 contentWithFilters(fileRevIndex, sink);
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198 }
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199 }
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200
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201 /**
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202 * @return file revision as recorded in repository manifest for dirstate parent, or <code>null</code> if no file revision can be found
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203 */
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204 private Nodeid getWorkingCopyRevision() throws HgInvalidControlFileException {
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205 final Pair<Nodeid, Nodeid> wcParents = getRepo().getWorkingCopyParents();
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206 Nodeid p = wcParents.first().isNull() ? wcParents.second() : wcParents.first();
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207 final HgChangelog clog = getRepo().getChangelog();
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208 final int csetRevIndex;
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209 if (p.isNull()) {
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210 // no dirstate parents
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211 getRepo().getSessionContext().getLog().dump(getClass(), Info, "No dirstate parents, resort to TIP", getPath());
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212 // if it's a repository with no dirstate, use TIP then
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213 csetRevIndex = clog.getLastRevision();
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214 if (csetRevIndex == -1) {
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215 // shall not happen provided there's .i for this data file (hence at least one cset)
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216 // and perhaps exception is better here. However, null as "can't find" indication seems reasonable.
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217 return null;
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218 }
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219 } else {
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220 // common case to avoid searching complete changelog for nodeid match
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221 final Nodeid tipRev = clog.getRevision(TIP);
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222 if (tipRev.equals(p)) {
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223 csetRevIndex = clog.getLastRevision();
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224 } else {
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225 // bad luck, need to search honestly
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226 csetRevIndex = getRepo().getChangelog().getRevisionIndex(p);
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227 }
237
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228 }
401
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229 Nodeid fileRev = getRepo().getManifest().getFileRevision(csetRevIndex, getPath());
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230 // it's possible for a file to be in working dir and have store/.i but to belong e.g. to a different
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231 // branch than the one from dirstate. Thus it's possible to get null fileRev
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232 // which would serve as an indication this data file is not part of working copy
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233 return fileRev;
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234 }
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235
396
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236 /**
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237 * Access content of a file revision
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238 * XXX not sure distinct method contentWithFilters() is the best way to do, perhaps, callers shall add filters themselves?
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239 *
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240 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, {@link HgRepository#TIP} and {@link HgRepository#WORKING_COPY} make sense.
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241 * @param sink content consumer
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242 *
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243 * @throws CancelledException if execution of the operation was cancelled
425
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244 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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245 */
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246 public void contentWithFilters(int fileRevisionIndex, ByteChannel sink) throws CancelledException, HgRuntimeException {
396
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247 if (fileRevisionIndex == WORKING_COPY) {
237
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248 workingCopy(sink); // pass un-mangled sink
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249 } else {
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250 content(fileRevisionIndex, new FilterByteChannel(sink, getRepo().getFiltersFromRepoToWorkingDir(getPath())));
237
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251 }
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252 }
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253
367
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254 /**
396
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255 * Retrieve content of specific revision. Content is provided as is, without any filters (e.g. keywords, eol, etc.) applied.
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256 * For filtered content, use {@link #contentWithFilters(int, ByteChannel)}.
367
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257 *
368
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258 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, {@link HgRepository#TIP} and {@link HgRepository#WORKING_COPY} make sense.
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259 * @param sink content consumer
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260 *
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261 * @throws CancelledException if execution of the operation was cancelled
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262 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
367
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263 */
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264 public void content(int fileRevisionIndex, ByteChannel sink) throws CancelledException, HgRuntimeException {
367
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265 // for data files need to check heading of the file content for possible metadata
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266 // @see http://mercurial.selenic.com/wiki/FileFormats#data.2BAC8-
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267 if (fileRevisionIndex == TIP) {
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268 fileRevisionIndex = getLastRevision();
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269 }
367
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270 if (fileRevisionIndex == WORKING_COPY) {
237
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271 // sink is supposed to come into workingCopy without filters
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272 // thus we shall not get here (into #content) from #contentWithFilters(WC)
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273 workingCopy(sink);
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274 return;
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275 }
367
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276 if (wrongRevisionIndex(fileRevisionIndex) || fileRevisionIndex == BAD_REVISION) {
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277 throw new HgInvalidRevisionException(fileRevisionIndex);
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278 }
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279 if (sink == null) {
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280 throw new IllegalArgumentException();
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281 }
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282 if (metadata == null) {
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283 metadata = new Metadata(getRepo());
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284 }
277
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285 ErrorHandlingInspector insp;
490
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286 final LogFacility lf = getRepo().getSessionContext().getLog();
367
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287 if (metadata.none(fileRevisionIndex)) {
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288 insp = new ContentPipe(sink, 0, lf);
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289 } else if (metadata.known(fileRevisionIndex)) {
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290 insp = new ContentPipe(sink, metadata.dataOffset(fileRevisionIndex), lf);
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291 } else {
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292 // do not know if there's metadata
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293 insp = new MetadataInspector(metadata, new ContentPipe(sink, 0, lf));
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294 }
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295 insp.checkCancelled();
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296 super.content.iterate(fileRevisionIndex, fileRevisionIndex, true, insp);
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297 try {
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298 insp.checkFailed();
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299 } catch (HgInvalidControlFileException ex) {
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300 ex = ex.setFileName(getPath());
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301 throw ex.isRevisionIndexSet() ? ex : ex.setRevisionIndex(fileRevisionIndex);
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302 } catch (IOException ex) {
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303 HgInvalidControlFileException e = new HgInvalidControlFileException("Revision content access failed", ex, null);
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304 throw content.initWithIndexFile(e).setFileName(getPath()).setRevisionIndex(fileRevisionIndex);
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305 }
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306 }
425
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307
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308 /**
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309 * Walk complete change history of the file.
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310 * @param inspector callback to visit changesets
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311 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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312 */
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313 public void history(HgChangelog.Inspector inspector) throws HgRuntimeException {
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314 history(0, getLastRevision(), inspector);
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315 }
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316
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317 /**
425
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318 * Walk subset of the file's change history.
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319 * @param start revision local index, inclusive; non-negative or {@link HgRepository#TIP}
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320 * @param end revision local index, inclusive; non-negative or {@link HgRepository#TIP}
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321 * @param inspector callback to visit changesets
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322 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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323 */
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324 public void history(int start, int end, HgChangelog.Inspector inspector) throws HgRuntimeException {
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325 if (!exists()) {
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326 throw new IllegalStateException("Can't get history of invalid repository file node");
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327 }
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328 final int last = getLastRevision();
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329 if (end == TIP) {
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330 end = last;
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331 }
300
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332 if (start == TIP) {
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333 start = last;
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334 }
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335 HgInternals.checkRevlogRange(start, end, last);
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336
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337 final int[] commitRevisions = new int[end - start + 1];
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338 final boolean[] needsSorting = { false };
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339 RevlogStream.Inspector insp = new RevlogStream.Inspector() {
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340 int count = 0;
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341 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
242
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342 if (count > 0) {
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343 if (commitRevisions[count -1] > linkRevision) {
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344 needsSorting[0] = true;
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345 }
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346 }
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347 commitRevisions[count++] = linkRevision;
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348 }
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349 };
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350 content.iterate(start, end, false, insp);
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351 final HgChangelog changelog = getRepo().getChangelog();
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352 if (needsSorting[0]) {
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353 // automatic tools (svnmerge?) produce unnatural file history
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354 // (e.g. cpython/Lib/doctest.py, revision 164 points to cset 63509, 165 - to 38453)
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355 Arrays.sort(commitRevisions);
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356 }
245
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357 changelog.rangeInternal(inspector, commitRevisions);
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358 }
88
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359
354
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360 /**
367
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361 * For a given revision of the file (identified with revision index), find out index of the corresponding changeset.
354
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362 *
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363 * @return changeset revision index
425
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364 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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365 */
437
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366 public int getChangesetRevisionIndex(int fileRevisionIndex) throws HgRuntimeException {
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367 return content.linkRevision(fileRevisionIndex);
367
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368 }
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369
354
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370 /**
367
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371 * Complements {@link #getChangesetRevisionIndex(int)} to get changeset revision that corresponds to supplied file revision
354
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372 *
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373 * @param nid revision of the file
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374 * @return changeset revision
425
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375 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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376 */
425
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377 public Nodeid getChangesetRevision(Nodeid nid) throws HgRuntimeException {
367
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378 int changelogRevision = getChangesetRevisionIndex(getRevisionIndex(nid));
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379 return getRepo().getChangelog().getRevision(changelogRevision);
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380 }
78
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381
354
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382 /**
396
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diff changeset
383 * Tells whether this file originates from another repository file
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diff changeset
384 * @return <code>true</code> if this file is a copy of another from the repository
425
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385 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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386 */
425
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387 public boolean isCopy() throws HgRuntimeException {
134
afac8ddc5dd2 Keep record if we tried and found no metadata for a given revision
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diff changeset
388 if (metadata == null || !metadata.checked(0)) {
275
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diff changeset
389 checkAndRecordMetadata(0);
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390 }
134
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391 if (!metadata.known(0)) {
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392 return false;
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393 }
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394 return metadata.find(0, "copy") != null;
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395 }
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diff changeset
396
354
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397 /**
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398 * Get name of the file this one was copied from.
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diff changeset
399 *
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400 * @return name of the file origin
425
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401 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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402 */
425
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diff changeset
403 public Path getCopySourceName() throws HgRuntimeException {
78
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diff changeset
404 if (isCopy()) {
571
e4ee4bf4c7d0 Let session context control creation of Path instances
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diff changeset
405 Path.Source ps = getRepo().getSessionContext().getPathFactory();
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diff changeset
406 return ps.path(metadata.find(0, "copy"));
78
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407 }
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diff changeset
408 throw new UnsupportedOperationException(); // XXX REVISIT, think over if Exception is good (clients would check isCopy() anyway, perhaps null is sufficient?)
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diff changeset
409 }
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diff changeset
410
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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diff changeset
411 /**
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diff changeset
412 *
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diff changeset
413 * @return revision this file was copied from
425
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diff changeset
414 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
415
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diff changeset
415 */
425
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diff changeset
416 public Nodeid getCopySourceRevision() throws HgRuntimeException {
78
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417 if (isCopy()) {
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418 return Nodeid.fromAscii(metadata.find(0, "copyrev")); // XXX reuse/cache Nodeid
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419 }
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420 throw new UnsupportedOperationException();
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diff changeset
421 }
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
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diff changeset
422
415
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diff changeset
423 /**
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
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diff changeset
424 * Get file flags recorded in the manifest
416
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diff changeset
425 * @param fileRevisionIndex - revision local index, non-negative, or {@link HgRepository#TIP}.
417
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diff changeset
426 * @see HgManifest#getFileFlags(int, Path)
425
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diff changeset
427 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
415
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diff changeset
428 */
425
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diff changeset
429 public HgManifest.Flags getFlags(int fileRevisionIndex) throws HgRuntimeException {
415
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diff changeset
430 int changesetRevIndex = getChangesetRevisionIndex(fileRevisionIndex);
417
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diff changeset
431 return getRepo().getManifest().getFileFlags(changesetRevIndex, getPath());
415
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diff changeset
432 }
416
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diff changeset
433
603
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diff changeset
434 /**
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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diff changeset
435 * mimic 'hg diff -r clogRevIndex1 -r clogRevIndex2'
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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diff changeset
436 */
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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diff changeset
437 public void diff(int clogRevIndex1, int clogRevIndex2, HgBlameInspector insp) throws HgCallbackTargetException {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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diff changeset
438 // FIXME clogRevIndex1 and clogRevIndex2 may point to different files, need to decide whether to throw an exception
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diff changeset
439 // or to attempt to look up correct file node (tricky)
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diff changeset
440 int fileRevIndex1 = fileRevIndex(this, clogRevIndex1);
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diff changeset
441 int fileRevIndex2 = fileRevIndex(this, clogRevIndex2);
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diff changeset
442 BlameHelper bh = new BlameHelper(insp, 5);
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diff changeset
443 bh.useFileUpTo(this, clogRevIndex2);
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diff changeset
444 bh.diff(fileRevIndex1, clogRevIndex1, fileRevIndex2, clogRevIndex2);
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diff changeset
445 }
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diff changeset
446
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
447 /**
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
448 * Walk file history up/down to revision at given changeset and report changes for each revision
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
449 */
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
450 public void annotate(int changelogRevisionIndex, HgBlameInspector insp, HgIterateDirection iterateOrder) throws HgCallbackTargetException {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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diff changeset
451 annotate(0, changelogRevisionIndex, insp, iterateOrder);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
452 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
453
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
454 /**
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
455 * Walk file history range and report changes for each revision
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
456 */
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
457 public void annotate(int changelogRevIndexStart, int changelogRevIndexEnd, HgBlameInspector insp, HgIterateDirection iterateOrder) throws HgCallbackTargetException {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
458 if (wrongRevisionIndex(changelogRevIndexStart) || wrongRevisionIndex(changelogRevIndexEnd)) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
459 throw new IllegalArgumentException();
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
460 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
461 // Note, changelogRevIndexEnd may be TIP, while the code below doesn't tolerate constants
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
462 //
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
463 int lastRevision = getRepo().getChangelog().getLastRevision();
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
464 if (changelogRevIndexEnd == TIP) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
465 changelogRevIndexEnd = lastRevision;
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
466 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
467 HgInternals.checkRevlogRange(changelogRevIndexStart, changelogRevIndexEnd, lastRevision);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
468 if (!exists()) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
469 return;
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
470 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
471 FileHistory fileHistory = new FileHistory(this, changelogRevIndexStart, changelogRevIndexEnd);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
472 fileHistory.build();
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
473 BlameHelper bh = new BlameHelper(insp, 10);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
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parents: 602
diff changeset
474 for (FileRevisionHistoryChunk fhc : fileHistory.iterate(OldToNew)) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
475 // iteration order is not important here
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
476 bh.useFileUpTo(fhc.getFile(), fhc.getEndChangeset());
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
477 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
478 int[] fileClogParentRevs = new int[2];
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
479 int[] fileParentRevs = new int[2];
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
480 for (FileRevisionHistoryChunk fhc : fileHistory.iterate(iterateOrder)) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
481 for (int fri : fhc.fileRevisions(iterateOrder)) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
482 int clogRevIndex = fhc.changeset(fri);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
483 // the way we built fileHistory ensures we won't walk past [changelogRevIndexStart..changelogRevIndexEnd]
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
484 assert clogRevIndex >= changelogRevIndexStart;
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
485 assert clogRevIndex <= changelogRevIndexEnd;
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
486 fhc.fillFileParents(fri, fileParentRevs);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
487 fhc.fillCsetParents(fri, fileClogParentRevs);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
488 bh.annotateChange(fri, clogRevIndex, fileParentRevs, fileClogParentRevs);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
489 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
490 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
491 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
492
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
493 /**
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
494 * Annotates changes of the file against its parent(s).
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
495 * Unlike {@link #annotate(HgDataFile, int, Inspector, HgIterateDirection)}, doesn't
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
496 * walk file history, looks at the specified revision only. Handles both parents (if merge revision).
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
497 */
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
498 public void annotateSingleRevision(int changelogRevisionIndex, HgBlameInspector insp) throws HgCallbackTargetException {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
499 // TODO detect if file is text/binary (e.g. looking for chars < ' ' and not \t\r\n\f
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
500 int fileRevIndex = fileRevIndex(this, changelogRevisionIndex);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
501 int[] fileRevParents = new int[2];
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
502 parents(fileRevIndex, fileRevParents, null, null);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
503 if (changelogRevisionIndex == TIP) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
504 changelogRevisionIndex = getChangesetRevisionIndex(fileRevIndex);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
505 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
506 BlameHelper bh = new BlameHelper(insp, 5);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
507 bh.useFileUpTo(this, changelogRevisionIndex);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
508 int[] fileClogParentRevs = new int[2];
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
509 fileClogParentRevs[0] = fileRevParents[0] == NO_REVISION ? NO_REVISION : getChangesetRevisionIndex(fileRevParents[0]);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
510 fileClogParentRevs[1] = fileRevParents[1] == NO_REVISION ? NO_REVISION : getChangesetRevisionIndex(fileRevParents[1]);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
511 bh.annotateChange(fileRevIndex, changelogRevisionIndex, fileRevParents, fileClogParentRevs);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
512 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
513
88
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
514 @Override
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
515 public String toString() {
61eedab3eb3e Status between two revisions to recognize copy/rename
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parents: 79
diff changeset
516 StringBuilder sb = new StringBuilder(getClass().getSimpleName());
61eedab3eb3e Status between two revisions to recognize copy/rename
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parents: 79
diff changeset
517 sb.append('(');
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
518 sb.append(getPath());
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
519 sb.append(')');
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
520 return sb.toString();
61eedab3eb3e Status between two revisions to recognize copy/rename
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 79
diff changeset
521 }
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 245
diff changeset
522
396
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
523 private void checkAndRecordMetadata(int localRev) throws HgInvalidControlFileException {
495
abfbe81154b5 Do not use exception when only metadata processing is needed. For hg4j repo, status 0:-1 changed from 500 to 60 ms
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
524 if (metadata == null) {
602
e3717fc7d26f Refactor metadata parsing in HgDataFile, moved to standalone class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 600
diff changeset
525 metadata = new Metadata(getRepo());
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
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parents: 245
diff changeset
526 }
495
abfbe81154b5 Do not use exception when only metadata processing is needed. For hg4j repo, status 0:-1 changed from 500 to 60 ms
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
527 // use MetadataInspector without delegate to process metadata only
602
e3717fc7d26f Refactor metadata parsing in HgDataFile, moved to standalone class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 600
diff changeset
528 RevlogStream.Inspector insp = new MetadataInspector(metadata, null);
495
abfbe81154b5 Do not use exception when only metadata processing is needed. For hg4j repo, status 0:-1 changed from 500 to 60 ms
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
529 super.content.iterate(localRev, localRev, true, insp);
275
6d1804fe0ed7 Issue 10: Report file content length with respect of metadata. Respect dirstate parents for WC's status. Exceptions to keep useful attributes of the location
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 245
diff changeset
530 }
603
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
531
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
532
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
533 private static int fileRevIndex(HgDataFile df, int csetRevIndex) {
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
534 Nodeid fileRev = df.getRepo().getManifest().getFileRevision(csetRevIndex, df.getPath());
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
535 return df.getRevisionIndex(fileRev);
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
536 }
707b5c7c6fa4 Refactor HgBlameFacility: relevant action methods moved to proper home (HgDataFile), as facility doesn't provide anything but packaging of relevant methods/interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 602
diff changeset
537
78
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
538
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539 private static class MetadataInspector extends ErrorHandlingInspector implements RevlogStream.Inspector {
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540 private final Metadata metadata;
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541 private final RevlogStream.Inspector delegate;
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542
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543 /**
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544 * @param _metadata never <code>null</code>
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545 * @param chain <code>null</code> if no further data processing other than metadata is desired
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546 */
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547 public MetadataInspector(Metadata _metadata, RevlogStream.Inspector chain) {
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548 metadata = _metadata;
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549 delegate = chain;
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550 setCancelSupport(CancelSupport.Factory.get(chain));
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551 }
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552
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553 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
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554 try {
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555 if (metadata.tryRead(revisionNumber, data)) {
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556 // da is in prepared state (i.e. we consumed all bytes up to metadata end).
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557 // However, it's not safe to assume delegate won't call da.reset() for some reason,
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558 // and we need to ensure predictable result.
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559 data.reset();
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560 int offset = metadata.dataOffset(revisionNumber);
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561 data = new FilterDataAccess(data, offset, data.length() - offset);
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562 } else {
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563 data.reset();
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564 }
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565 if (delegate != null) {
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566 delegate.next(revisionNumber, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, nodeid, data);
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567 }
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568 } catch (IOException ex) {
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569 recordFailure(ex);
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570 } catch (HgInvalidControlFileException ex) {
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571 recordFailure(ex.isRevisionIndexSet() ? ex : ex.setRevisionIndex(revisionNumber));
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572 }
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573 }
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574
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575 @Override
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576 public void checkFailed() throws HgRuntimeException, IOException, CancelledException {
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577 super.checkFailed();
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578 if (delegate instanceof ErrorHandlingInspector) {
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579 // TODO need to add ErrorDestination (ErrorTarget/Acceptor?) and pass it around (much like CancelSupport get passed)
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580 // so that delegate would be able report its failures directly to caller without this hack
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581 ((ErrorHandlingInspector) delegate).checkFailed();
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582 }
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583 }
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584 }
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585 }