Mercurial > jhg

annotate src/org/tmatesoft/hg/repo/HgDataFile.java @ 620:272ecffccc8a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Do not cache branch value of working copy as it's not possible to refresh it after commit now
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sat, 18 May 2013 21:55:31 +0200
parents 868b2ffdcd5c
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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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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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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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 }