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annotate src/org/tmatesoft/hg/repo/HgDataFile.java @ 629:5f52074707b2

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Diff/blame methods as command, their residence in HgDataFile was a mistake
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 22 May 2013 16:46:15 +0200
parents 6526d8adbc0f
children 54e16ab771ec
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.repo.HgInternals.wrongRevisionIndex;
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20 import static org.tmatesoft.hg.repo.HgRepository.*;
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21 import static org.tmatesoft.hg.util.LogFacility.Severity.Info;
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22
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23 import java.io.File;
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24 import java.io.FileInputStream;
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25 import java.io.IOException;
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26 import java.nio.ByteBuffer;
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27 import java.nio.channels.FileChannel;
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28 import java.util.Arrays;
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29
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30 import org.tmatesoft.hg.core.HgBlameInspector;
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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.HgDiffCommand;
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34 import org.tmatesoft.hg.core.HgException;
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35 import org.tmatesoft.hg.core.HgIterateDirection;
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36 import org.tmatesoft.hg.core.HgLibraryFailureException;
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37 import org.tmatesoft.hg.core.Nodeid;
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38 import org.tmatesoft.hg.internal.DataAccess;
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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 // 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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79 // it might be confused with files existed before but lately removed. TODO HgFileNode.exists makes more sense.
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80 // or HgDataFile.known()
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81 public boolean exists() {
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82 return content.exists();
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83 }
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84
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85 /**
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86 * Human-readable file name, i.e. "COPYING", not "store/data/_c_o_p_y_i_n_g.i"
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87 */
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88 public Path getPath() {
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89 return path; // hgRepo.backresolve(this) -> name? In this case, what about hashed long names?
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90 }
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91
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92 /**
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93 * Handy shorthand for {@link #getLength(int) length(getRevisionIndex(nodeid))}
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94 *
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95 * @param nodeid revision of the file
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96 *
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97 * @return size of the file content at the given revision
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98 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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99 */
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100 public int getLength(Nodeid nodeid) throws HgRuntimeException {
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101 try {
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102 return getLength(getRevisionIndex(nodeid));
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103 } catch (HgInvalidControlFileException ex) {
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104 throw ex.isRevisionSet() ? ex : ex.setRevision(nodeid);
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105 } catch (HgInvalidRevisionException ex) {
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106 throw ex.isRevisionSet() ? ex : ex.setRevision(nodeid);
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107 }
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108 }
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109
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110 /**
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111 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, only {@link HgRepository#TIP} makes sense.
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112 * @return size of the file content at the revision identified by local revision number.
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113 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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114 */
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115 public int getLength(int fileRevisionIndex) throws HgRuntimeException {
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116 if (wrongRevisionIndex(fileRevisionIndex) || fileRevisionIndex == BAD_REVISION) {
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117 throw new HgInvalidRevisionException(fileRevisionIndex);
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118 }
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119 if (fileRevisionIndex == TIP) {
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120 fileRevisionIndex = getLastRevision();
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121 } else if (fileRevisionIndex == WORKING_COPY) {
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122 File f = getRepo().getFile(this);
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123 if (f.exists()) {
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124 // single revision can't be greater than 2^32, shall be safe to cast to int
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125 return Internals.ltoi(f.length());
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126 }
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127 Nodeid fileRev = getWorkingCopyRevision();
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128 if (fileRev == null) {
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129 throw new HgInvalidRevisionException(String.format("File %s is not part of working copy", getPath()), null, fileRevisionIndex);
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130 }
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131 fileRevisionIndex = getRevisionIndex(fileRev);
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132 }
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133 if (metadata == null || !metadata.checked(fileRevisionIndex)) {
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134 checkAndRecordMetadata(fileRevisionIndex);
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135 }
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136 final int dataLen = content.dataLength(fileRevisionIndex);
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137 if (metadata.known(fileRevisionIndex)) {
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138 return dataLen - metadata.dataOffset(fileRevisionIndex);
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139 }
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140 return dataLen;
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141 }
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142
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143 /**
237
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144 * Reads content of the file from working directory. If file present in the working directory, its actual content without
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145 * 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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146 * 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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147 * repository, and filters repo -> working copy get applied.
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148 *
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149 * 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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150 * e.g. from another branch), no content would be supplied.
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151 *
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152 * @param sink content consumer
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153 * @throws CancelledException if execution of the operation was cancelled
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154 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
237
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155 */
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156 public void workingCopy(ByteChannel sink) throws CancelledException, HgRuntimeException {
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157 File f = getRepo().getFile(this);
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158 if (f.exists()) {
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159 final CancelSupport cs = CancelSupport.Factory.get(sink);
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160 final ProgressSupport progress = ProgressSupport.Factory.get(sink);
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161 final long flength = f.length();
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162 final int bsize = (int) Math.min(flength, 32*1024);
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163 progress.start((int) (flength > Integer.MAX_VALUE ? flength >>> 15 /*32 kb buf size*/ : flength));
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164 ByteBuffer buf = ByteBuffer.allocate(bsize);
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165 FileInputStream fis = null;
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166 try {
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167 fis = new FileInputStream(f);
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168 FileChannel fc = fis.getChannel();
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169 while (fc.read(buf) != -1) {
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170 cs.checkCancelled();
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171 buf.flip();
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172 int consumed = sink.write(buf);
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173 progress.worked(flength > Integer.MAX_VALUE ? 1 : consumed);
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174 buf.compact();
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175 }
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176 } catch (IOException ex) {
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177 throw new HgInvalidFileException("Working copy read failed", ex, f);
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178 } finally {
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179 progress.done();
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180 if (fis != null) {
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181 new FileUtils(getRepo().getSessionContext().getLog()).closeQuietly(fis);
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182 }
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183 }
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184 } else {
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185 Nodeid fileRev = getWorkingCopyRevision();
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186 if (fileRev == null) {
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187 // no content for this data file in the working copy - it is not part of the actual working state.
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188 // XXX perhaps, shall report this to caller somehow, not silently pass no data?
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189 return;
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190 }
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191 final int fileRevIndex = getRevisionIndex(fileRev);
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192 contentWithFilters(fileRevIndex, sink);
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193 }
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194 }
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195
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196 /**
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197 * @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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198 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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199 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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200 */
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201 private Nodeid getWorkingCopyRevision() throws HgRuntimeException {
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202 final Pair<Nodeid, Nodeid> wcParents = getRepo().getWorkingCopyParents();
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203 Nodeid p = wcParents.first().isNull() ? wcParents.second() : wcParents.first();
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204 final HgChangelog clog = getRepo().getChangelog();
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205 final int csetRevIndex;
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206 if (p.isNull()) {
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207 // no dirstate parents
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208 getRepo().getSessionContext().getLog().dump(getClass(), Info, "No dirstate parents, resort to TIP", getPath());
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209 // if it's a repository with no dirstate, use TIP then
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210 csetRevIndex = clog.getLastRevision();
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211 if (csetRevIndex == -1) {
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212 // shall not happen provided there's .i for this data file (hence at least one cset)
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213 // and perhaps exception is better here. However, null as "can't find" indication seems reasonable.
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214 return null;
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215 }
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216 } else {
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217 // common case to avoid searching complete changelog for nodeid match
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218 final Nodeid tipRev = clog.getRevision(TIP);
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219 if (tipRev.equals(p)) {
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220 csetRevIndex = clog.getLastRevision();
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221 } else {
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222 // bad luck, need to search honestly
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223 csetRevIndex = clog.getRevisionIndex(p);
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224 }
237
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225 }
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226 Nodeid fileRev = getRepo().getManifest().getFileRevision(csetRevIndex, getPath());
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227 // 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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228 // branch than the one from dirstate. Thus it's possible to get null fileRev
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229 // which would serve as an indication this data file is not part of working copy
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230 return fileRev;
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231 }
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232
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233 /**
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234 * Access content of a file revision
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235 * XXX not sure distinct method contentWithFilters() is the best way to do, perhaps, callers shall add filters themselves?
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236 *
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237 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, {@link HgRepository#TIP} and {@link HgRepository#WORKING_COPY} make sense.
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238 * @param sink content consumer
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239 *
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240 * @throws CancelledException if execution of the operation was cancelled
425
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241 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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242 */
425
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243 public void contentWithFilters(int fileRevisionIndex, ByteChannel sink) throws CancelledException, HgRuntimeException {
396
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244 if (fileRevisionIndex == WORKING_COPY) {
237
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245 workingCopy(sink); // pass un-mangled sink
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246 } else {
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247 content(fileRevisionIndex, new FilterByteChannel(sink, getRepo().getFiltersFromRepoToWorkingDir(getPath())));
237
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248 }
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249 }
22
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250
367
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251 /**
396
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252 * Retrieve content of specific revision. Content is provided as is, without any filters (e.g. keywords, eol, etc.) applied.
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253 * For filtered content, use {@link #contentWithFilters(int, ByteChannel)}.
367
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254 *
368
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255 * @param fileRevisionIndex - revision local index, non-negative. From predefined constants, {@link HgRepository#TIP} and {@link HgRepository#WORKING_COPY} make sense.
396
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256 * @param sink content consumer
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257 *
380
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258 * @throws CancelledException if execution of the operation was cancelled
425
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259 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
367
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260 */
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261 public void content(int fileRevisionIndex, ByteChannel sink) throws CancelledException, HgRuntimeException {
367
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262 // for data files need to check heading of the file content for possible metadata
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263 // @see http://mercurial.selenic.com/wiki/FileFormats#data.2BAC8-
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264 if (fileRevisionIndex == TIP) {
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265 fileRevisionIndex = getLastRevision();
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266 }
367
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267 if (fileRevisionIndex == WORKING_COPY) {
237
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268 // sink is supposed to come into workingCopy without filters
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269 // thus we shall not get here (into #content) from #contentWithFilters(WC)
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270 workingCopy(sink);
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271 return;
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272 }
367
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273 if (wrongRevisionIndex(fileRevisionIndex) || fileRevisionIndex == BAD_REVISION) {
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274 throw new HgInvalidRevisionException(fileRevisionIndex);
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275 }
157
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276 if (sink == null) {
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277 throw new IllegalArgumentException();
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278 }
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279 if (metadata == null) {
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280 metadata = new Metadata(getRepo());
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281 }
277
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282 ErrorHandlingInspector insp;
490
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283 final LogFacility lf = getRepo().getSessionContext().getLog();
367
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284 if (metadata.none(fileRevisionIndex)) {
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285 insp = new ContentPipe(sink, 0, lf);
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286 } else if (metadata.known(fileRevisionIndex)) {
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287 insp = new ContentPipe(sink, metadata.dataOffset(fileRevisionIndex), lf);
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288 } else {
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289 // do not know if there's metadata
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290 insp = new MetadataInspector(metadata, new ContentPipe(sink, 0, lf));
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291 }
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292 insp.checkCancelled();
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293 super.content.iterate(fileRevisionIndex, fileRevisionIndex, true, insp);
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294 try {
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295 insp.checkFailed();
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296 } catch (HgInvalidControlFileException ex) {
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297 ex = ex.setFileName(getPath());
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298 throw ex.isRevisionIndexSet() ? ex : ex.setRevisionIndex(fileRevisionIndex);
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299 } catch (IOException ex) {
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300 HgInvalidControlFileException e = new HgInvalidControlFileException("Revision content access failed", ex, null);
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301 throw content.initWithIndexFile(e).setFileName(getPath()).setRevisionIndex(fileRevisionIndex);
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302 }
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303 }
425
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304
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305 /**
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306 * Walk complete change history of the file.
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307 * @param inspector callback to visit changesets
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308 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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309 */
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310 public void history(HgChangelog.Inspector inspector) throws HgRuntimeException {
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311 history(0, getLastRevision(), inspector);
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312 }
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313
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314 /**
425
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315 * Walk subset of the file's change history.
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316 * @param start revision local index, inclusive; non-negative or {@link HgRepository#TIP}
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317 * @param end revision local index, inclusive; non-negative or {@link HgRepository#TIP}
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318 * @param inspector callback to visit changesets
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319 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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320 */
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321 public void history(int start, int end, HgChangelog.Inspector inspector) throws HgRuntimeException {
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322 if (!exists()) {
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323 throw new IllegalStateException("Can't get history of invalid repository file node");
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324 }
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325 final int last = getLastRevision();
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326 if (end == TIP) {
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327 end = last;
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328 }
300
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329 if (start == TIP) {
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330 start = last;
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331 }
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332 HgInternals.checkRevlogRange(start, end, last);
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333
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334 final int[] commitRevisions = new int[end - start + 1];
242
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335 final boolean[] needsSorting = { false };
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diff changeset
336 RevlogStream.Inspector insp = new RevlogStream.Inspector() {
3
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diff changeset
337 int count = 0;
51
9429c7bd1920 Try DataAccess to reach revision data instead of plain byte arrays
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diff changeset
338 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
242
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diff changeset
339 if (count > 0) {
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diff changeset
340 if (commitRevisions[count -1] > linkRevision) {
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diff changeset
341 needsSorting[0] = true;
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342 }
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343 }
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344 commitRevisions[count++] = linkRevision;
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345 }
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346 };
48
e34f90b9ded1 Limit option for history/log
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diff changeset
347 content.iterate(start, end, false, insp);
233
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diff changeset
348 final HgChangelog changelog = getRepo().getChangelog();
242
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diff changeset
349 if (needsSorting[0]) {
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diff changeset
350 // automatic tools (svnmerge?) produce unnatural file history
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351 // (e.g. cpython/Lib/doctest.py, revision 164 points to cset 63509, 165 - to 38453)
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diff changeset
352 Arrays.sort(commitRevisions);
233
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353 }
245
2fb439375ddc Avoid sorting revision range twice
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354 changelog.rangeInternal(inspector, commitRevisions);
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355 }
88
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diff changeset
356
354
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357 /**
367
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358 * For a given revision of the file (identified with revision index), find out index of the corresponding changeset.
354
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359 *
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360 * @return changeset revision index
425
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diff changeset
361 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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diff changeset
362 */
437
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363 public int getChangesetRevisionIndex(int fileRevisionIndex) throws HgRuntimeException {
32184ddcf46d Better argument names
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diff changeset
364 return content.linkRevision(fileRevisionIndex);
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
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diff changeset
365 }
88
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diff changeset
366
354
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367 /**
367
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diff changeset
368 * Complements {@link #getChangesetRevisionIndex(int)} to get changeset revision that corresponds to supplied file revision
354
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369 *
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370 * @param nid revision of the file
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371 * @return changeset revision
425
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diff changeset
372 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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373 */
425
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374 public Nodeid getChangesetRevision(Nodeid nid) throws HgRuntimeException {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
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diff changeset
375 int changelogRevision = getChangesetRevisionIndex(getRevisionIndex(nid));
88
61eedab3eb3e Status between two revisions to recognize copy/rename
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diff changeset
376 return getRepo().getChangelog().getRevision(changelogRevision);
61eedab3eb3e Status between two revisions to recognize copy/rename
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diff changeset
377 }
78
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diff changeset
378
354
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diff changeset
379 /**
396
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
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diff changeset
380 * Tells whether this file originates from another repository file
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
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diff changeset
381 * @return <code>true</code> if this file is a copy of another from the repository
425
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diff changeset
382 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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diff changeset
383 */
425
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diff changeset
384 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
385 if (metadata == null || !metadata.checked(0)) {
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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diff changeset
386 checkAndRecordMetadata(0);
78
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diff changeset
387 }
134
afac8ddc5dd2 Keep record if we tried and found no metadata for a given revision
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diff changeset
388 if (!metadata.known(0)) {
78
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diff changeset
389 return false;
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diff changeset
390 }
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diff changeset
391 return metadata.find(0, "copy") != null;
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diff changeset
392 }
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diff changeset
393
354
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diff changeset
394 /**
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diff changeset
395 * Get name of the file this one was copied from.
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diff changeset
396 *
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diff changeset
397 * @return name of the file origin
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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diff changeset
398 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
354
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diff changeset
399 */
425
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diff changeset
400 public Path getCopySourceName() throws HgRuntimeException {
78
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
401 if (isCopy()) {
571
e4ee4bf4c7d0 Let session context control creation of Path instances
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diff changeset
402 Path.Source ps = getRepo().getSessionContext().getPathFactory();
e4ee4bf4c7d0 Let session context control creation of Path instances
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diff changeset
403 return ps.path(metadata.find(0, "copy"));
78
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
404 }
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
405 throw new UnsupportedOperationException(); // XXX REVISIT, think over if Exception is good (clients would check isCopy() anyway, perhaps null is sufficient?)
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
406 }
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
407
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 401
diff changeset
408 /**
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 401
diff changeset
409 *
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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parents: 401
diff changeset
410 * @return revision this file was copied from
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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parents: 424
diff changeset
411 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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parents: 401
diff changeset
412 */
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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diff changeset
413 public Nodeid getCopySourceRevision() throws HgRuntimeException {
78
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
414 if (isCopy()) {
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
415 return Nodeid.fromAscii(metadata.find(0, "copyrev")); // XXX reuse/cache Nodeid
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
416 }
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
417 throw new UnsupportedOperationException();
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
418 }
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 416
diff changeset
419
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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parents: 401
diff changeset
420 /**
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 416
diff changeset
421 * Get file flags recorded in the manifest
416
d30083c80d52 Better names - non-confusing and aligned with the rest of API
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parents: 415
diff changeset
422 * @param fileRevisionIndex - revision local index, non-negative, or {@link HgRepository#TIP}.
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 416
diff changeset
423 * @see HgManifest#getFileFlags(int, Path)
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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parents: 424
diff changeset
424 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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parents: 401
diff changeset
425 */
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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parents: 424
diff changeset
426 public HgManifest.Flags getFlags(int fileRevisionIndex) throws HgRuntimeException {
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 401
diff changeset
427 int changesetRevIndex = getChangesetRevisionIndex(fileRevisionIndex);
417
ccd7d25e5aea New and better name for HgFileInformer - HgChangesetFileSneaker. Explain (comments) ties between HgManifest, HgDataFile, HgChangesetFileSneaker and reasons for method placement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 416
diff changeset
428 return getRepo().getManifest().getFileFlags(changesetRevIndex, getPath());
415
ee8264d80747 Explicit constant for regular file flags, access to flags for a given file revision
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parents: 401
diff changeset
429 }
629
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
430
603
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
431 /**
629
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diff changeset
432 * @deprecated use {@link HgDiffCommand} instead
603
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
433 */
629
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diff changeset
434 @Deprecated
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 625
diff changeset
435 public void diff(int clogRevIndex1, int clogRevIndex2, HgBlameInspector insp) throws HgRuntimeException, HgCallbackTargetException {
629
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
436 try {
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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parents: 628
diff changeset
437 new HgDiffCommand(getRepo()).file(this).range(clogRevIndex1, clogRevIndex2).executeDiff(insp);
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
438 } catch (HgLibraryFailureException ex) {
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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parents: 628
diff changeset
439 throw ex.getCause();
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
440 } catch (HgException ex) {
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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parents: 628
diff changeset
441 throw new HgInvalidStateException(ex.getMessage());
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
442 } catch (CancelledException ex) {
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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parents: 628
diff changeset
443 throw new HgInvalidStateException("Cancellatin is not expected");
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
444 }
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
445 }
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
446
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
447 /**
629
5f52074707b2 Diff/blame methods as command, their residence in HgDataFile was a mistake
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diff changeset
448 * @deprecated use {@link HgDiffCommand} instead
603
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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449 */
629
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450 @Deprecated
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451 public void annotate(int clogRevIndex1, int clogRevIndex2, HgBlameInspector insp, HgIterateDirection iterateOrder) throws HgRuntimeException, HgCallbackTargetException {
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452 try {
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453 new HgDiffCommand(getRepo()).file(this).range(clogRevIndex1, clogRevIndex2).order(iterateOrder).executeAnnotate(insp);
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454 } catch (HgLibraryFailureException ex) {
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455 throw ex.getCause();
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456 } catch (HgException ex) {
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457 throw new HgInvalidStateException(ex.getMessage());
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458 } catch (CancelledException ex) {
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459 throw new HgInvalidStateException("Cancellatin is not expected");
603
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460 }
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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461 }
629
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462
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463 /**
629
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464 * @deprecated use {@link HgDiffCommand} instead
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465 */
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466 @Deprecated
628
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467 public void annotateSingleRevision(int changelogRevisionIndex, HgBlameInspector insp) throws HgRuntimeException, HgCallbackTargetException {
629
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468 try {
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469 new HgDiffCommand(getRepo()).file(this).changeset(changelogRevisionIndex).executeAnnotateSingleRevision(insp);
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470 } catch (HgLibraryFailureException ex) {
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471 throw ex.getCause();
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472 } catch (HgException ex) {
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473 throw new HgInvalidStateException(ex.getMessage());
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474 } catch (CancelledException ex) {
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diff changeset
475 throw new HgInvalidStateException("Cancellatin is not expected");
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476 }
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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477 }
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
478
88
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479 @Override
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480 public String toString() {
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481 StringBuilder sb = new StringBuilder(getClass().getSimpleName());
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482 sb.append('(');
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483 sb.append(getPath());
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484 sb.append(')');
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485 return sb.toString();
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486 }
275
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487
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488 private void checkAndRecordMetadata(int localRev) throws HgRuntimeException {
495
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489 if (metadata == null) {
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490 metadata = new Metadata(getRepo());
275
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491 }
495
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492 // use MetadataInspector without delegate to process metadata only
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diff changeset
493 RevlogStream.Inspector insp = new MetadataInspector(metadata, null);
495
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494 super.content.iterate(localRev, localRev, true, insp);
275
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495 }
78
c25c5c348d1b Skip metadata in the beginning of a file content. Parse metadata, recognize copies/renames
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diff changeset
496
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497 private static class MetadataInspector extends ErrorHandlingInspector implements RevlogStream.Inspector {
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498 private final Metadata metadata;
277
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499 private final RevlogStream.Inspector delegate;
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500
495
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501 /**
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502 * @param _metadata never <code>null</code>
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503 * @param chain <code>null</code> if no further data processing other than metadata is desired
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diff changeset
504 */
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505 public MetadataInspector(Metadata _metadata, RevlogStream.Inspector chain) {
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506 metadata = _metadata;
277
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507 delegate = chain;
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508 setCancelSupport(CancelSupport.Factory.get(chain));
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509 }
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diff changeset
510
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
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diff changeset
511 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) throws HgRuntimeException {
277
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512 try {
602
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diff changeset
513 if (metadata.tryRead(revisionNumber, data)) {
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514 // da is in prepared state (i.e. we consumed all bytes up to metadata end).
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515 // However, it's not safe to assume delegate won't call da.reset() for some reason,
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diff changeset
516 // and we need to ensure predictable result.
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diff changeset
517 data.reset();
602
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diff changeset
518 int offset = metadata.dataOffset(revisionNumber);
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diff changeset
519 data = new FilterDataAccess(data, offset, data.length() - offset);
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520 } else {
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521 data.reset();
277
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522 }
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523 if (delegate != null) {
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diff changeset
524 delegate.next(revisionNumber, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, nodeid, data);
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525 }
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526 } catch (IOException ex) {
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diff changeset
527 recordFailure(ex);
396
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diff changeset
528 } catch (HgInvalidControlFileException ex) {
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
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diff changeset
529 recordFailure(ex.isRevisionIndexSet() ? ex : ex.setRevisionIndex(revisionNumber));
157
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diff changeset
530 }
277
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diff changeset
531 }
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diff changeset
532
322
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diff changeset
533 @Override
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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diff changeset
534 public void checkFailed() throws HgRuntimeException, IOException, CancelledException {
322
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diff changeset
535 super.checkFailed();
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diff changeset
536 if (delegate instanceof ErrorHandlingInspector) {
425
48f993aa2f41 FIXMEs: exceptions, javadoc
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parents: 424
diff changeset
537 // TODO need to add ErrorDestination (ErrorTarget/Acceptor?) and pass it around (much like CancelSupport get passed)
322
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diff changeset
538 // so that delegate would be able report its failures directly to caller without this hack
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diff changeset
539 ((ErrorHandlingInspector) delegate).checkFailed();
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diff changeset
540 }
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diff changeset
541 }
17
571e1b2cc3f7 Query file for its parents. Demo of recently added ignore and digest support from within cat cmd
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parents: 5
diff changeset
542 }
2
08db726a0fb7 Shaping out low-level Hg structures
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parents:
diff changeset
543 }