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annotate src/org/tmatesoft/hg/repo/HgBlameFacility.java @ 593:9619301a7bb9

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Share last revision read between #iterate() invocations, to save revision rebuild efforts when few subsequent revisions are read
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 02 May 2013 16:51:02 +0200
parents e49f9d9513fa
children 43cfa08ff3fd
rev   line source
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1 /*
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2 * Copyright (c) 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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18
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19 import static org.tmatesoft.hg.core.HgIterateDirection.NewToOld;
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20 import static org.tmatesoft.hg.core.HgIterateDirection.OldToNew;
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21 import static org.tmatesoft.hg.repo.HgInternals.wrongRevisionIndex;
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22 import static org.tmatesoft.hg.repo.HgRepository.*;
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23
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24 import java.util.Arrays;
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25 import java.util.BitSet;
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26 import java.util.Collections;
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27 import java.util.LinkedList;
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28
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29 import org.tmatesoft.hg.core.HgCallbackTargetException;
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30 import org.tmatesoft.hg.core.HgIterateDirection;
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31 import org.tmatesoft.hg.core.Nodeid;
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32 import org.tmatesoft.hg.internal.BlameHelper;
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33 import org.tmatesoft.hg.internal.Callback;
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34 import org.tmatesoft.hg.internal.Experimental;
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35 import org.tmatesoft.hg.internal.IntVector;
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36 import org.tmatesoft.hg.util.Adaptable;
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37
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38 /**
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39 * Facility with diff/annotate functionality.
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40 *
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41 * @author Artem Tikhomirov
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42 * @author TMate Software Ltd.
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43 */
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44 @Experimental(reason="Unstable API")
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45 public final class HgBlameFacility {
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46 private final HgDataFile df;
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47
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48 public HgBlameFacility(HgDataFile file) {
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49 if (file == null) {
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50 throw new IllegalArgumentException();
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51 }
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52 df = file;
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53 }
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54
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55 /**
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56 * mimic 'hg diff -r clogRevIndex1 -r clogRevIndex2'
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57 */
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58 public void diff(int clogRevIndex1, int clogRevIndex2, Inspector insp) throws HgCallbackTargetException {
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59 // FIXME clogRevIndex1 and clogRevIndex2 may point to different files, need to decide whether to throw an exception
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60 // or to attempt to look up correct file node (tricky)
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61 int fileRevIndex1 = fileRevIndex(df, clogRevIndex1);
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62 int fileRevIndex2 = fileRevIndex(df, clogRevIndex2);
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63 BlameHelper bh = new BlameHelper(insp, 5);
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64 bh.useFileUpTo(df, clogRevIndex2);
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65 bh.diff(fileRevIndex1, clogRevIndex1, fileRevIndex2, clogRevIndex2);
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66 }
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67
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68 /**
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69 * Walk file history up/down to revision at given changeset and report changes for each revision
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70 */
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71 public void annotate(int changelogRevisionIndex, Inspector insp, HgIterateDirection iterateOrder) throws HgCallbackTargetException {
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72 annotate(0, changelogRevisionIndex, insp, iterateOrder);
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73 }
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74
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75 /**
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76 * Walk file history range and report changes for each revision
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77 */
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78 public void annotate(int changelogRevIndexStart, int changelogRevIndexEnd, Inspector insp, HgIterateDirection iterateOrder) throws HgCallbackTargetException {
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79 if (wrongRevisionIndex(changelogRevIndexStart) || wrongRevisionIndex(changelogRevIndexEnd)) {
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80 throw new IllegalArgumentException();
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81 }
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82 // Note, changelogRevIndexEnd may be TIP, while the code below doesn't tolerate constants
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83 //
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84 int lastRevision = df.getRepo().getChangelog().getLastRevision();
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85 if (changelogRevIndexEnd == TIP) {
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86 changelogRevIndexEnd = lastRevision;
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87 }
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88 HgInternals.checkRevlogRange(changelogRevIndexStart, changelogRevIndexEnd, lastRevision);
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89 if (!df.exists()) {
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90 return;
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91 }
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92 BlameHelper bh = new BlameHelper(insp, 10);
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93 HgDataFile currentFile = df;
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94 int fileLastClogRevIndex = changelogRevIndexEnd;
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95 FileRevisionHistoryChunk nextChunk = null;
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96 LinkedList<FileRevisionHistoryChunk> fileCompleteHistory = new LinkedList<FileRevisionHistoryChunk>();
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97 do {
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98 FileRevisionHistoryChunk fileHistory = new FileRevisionHistoryChunk(currentFile);
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99 fileHistory.init(fileLastClogRevIndex);
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100 fileHistory.linkTo(nextChunk);
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101 fileCompleteHistory.addFirst(fileHistory); // to get the list in old-to-new order
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102 nextChunk = fileHistory;
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103 bh.useFileUpTo(currentFile, fileLastClogRevIndex);
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104 if (fileHistory.changeset(0) > changelogRevIndexStart && currentFile.isCopy()) {
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105 // fileHistory.changeset(0) is the earliest revision we know about so far,
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106 // once we get to revisions earlier than the requested start, stop digging.
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107 // The reason there's NO == (i.e. not >=) because:
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108 // (easy): once it's equal, we've reached our intended start
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109 // (hard): if changelogRevIndexStart happens to be exact start of one of renames in the
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110 // chain of renames (test-annotate2 repository, file1->file1a->file1b, i.e. points
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111 // to the very start of file1a or file1 history), presence of == would get us to the next
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112 // chunk and hence changed parents of present chunk's first element. Our annotate alg
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113 // relies on parents only (i.e. knows nothing about 'last iteration element') to find out
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114 // what to compare, and hence won't report all lines of 'last iteration element' (which is the
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115 // first revision of the renamed file) as "added in this revision", leaving gaps in annotate
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116 HgRepository repo = currentFile.getRepo();
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117 Nodeid originLastRev = currentFile.getCopySourceRevision();
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118 currentFile = repo.getFileNode(currentFile.getCopySourceName());
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119 fileLastClogRevIndex = currentFile.getChangesetRevisionIndex(currentFile.getRevisionIndex(originLastRev));
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120 // XXX perhaps, shall fail with meaningful exception if new file doesn't exist (.i/.d not found for whatever reason)
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121 // or source revision is missing?
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122 } else {
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123 fileHistory.chopAtChangeset(changelogRevIndexStart);
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124 currentFile = null; // stop iterating
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125 }
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126 } while (currentFile != null && fileLastClogRevIndex > changelogRevIndexStart);
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127 // fileCompleteHistory is in (origin, intermediate target, ultimate target) order
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128
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129 int[] fileClogParentRevs = new int[2];
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130 int[] fileParentRevs = new int[2];
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131 if (iterateOrder == NewToOld) {
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132 Collections.reverse(fileCompleteHistory);
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133 }
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134 boolean shallFilterStart = changelogRevIndexStart != 0; // no reason if complete history is walked
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135 for (FileRevisionHistoryChunk fileHistory : fileCompleteHistory) {
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136 for (int fri : fileHistory.fileRevisions(iterateOrder)) {
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137 int clogRevIndex = fileHistory.changeset(fri);
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138 if (shallFilterStart) {
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139 if (iterateOrder == NewToOld) {
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140 // clogRevIndex decreases
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141 if (clogRevIndex < changelogRevIndexStart) {
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142 break;
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143 }
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144 // fall-through, clogRevIndex is in the [start..end] range
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145 } else { // old to new
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146 // the way we built fileHistory ensures we won't walk past changelogRevIndexEnd
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147 // here we ensure we start from the right one, the one indicated with changelogRevIndexStart
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148 if (clogRevIndex < changelogRevIndexStart) {
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149 continue;
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150 } else {
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151 shallFilterStart = false; // once boundary is crossed, no need to check
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152 // fall-through
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153 }
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154 }
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155 }
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156 fileHistory.fillFileParents(fri, fileParentRevs);
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157 fileHistory.fillCsetParents(fri, fileClogParentRevs);
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158 bh.annotateChange(fri, clogRevIndex, fileParentRevs, fileClogParentRevs);
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159 }
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160 }
549
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161 }
548
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162
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163 /**
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164 * Annotates changes of the file against its parent(s).
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165 * Unlike {@link #annotate(HgDataFile, int, Inspector, HgIterateDirection)}, doesn't
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166 * walk file history, looks at the specified revision only. Handles both parents (if merge revision).
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167 */
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168 public void annotateSingleRevision(int changelogRevisionIndex, Inspector insp) throws HgCallbackTargetException {
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169 // TODO detect if file is text/binary (e.g. looking for chars < ' ' and not \t\r\n\f
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170 int fileRevIndex = fileRevIndex(df, changelogRevisionIndex);
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171 int[] fileRevParents = new int[2];
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172 df.parents(fileRevIndex, fileRevParents, null, null);
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173 if (changelogRevisionIndex == TIP) {
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174 changelogRevisionIndex = df.getChangesetRevisionIndex(fileRevIndex);
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175 }
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176 BlameHelper bh = new BlameHelper(insp, 5);
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177 bh.useFileUpTo(df, changelogRevisionIndex);
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178 int[] fileClogParentRevs = new int[2];
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179 fileClogParentRevs[0] = fileRevParents[0] == NO_REVISION ? NO_REVISION : df.getChangesetRevisionIndex(fileRevParents[0]);
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180 fileClogParentRevs[1] = fileRevParents[1] == NO_REVISION ? NO_REVISION : df.getChangesetRevisionIndex(fileRevParents[1]);
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181 bh.annotateChange(fileRevIndex, changelogRevisionIndex, fileRevParents, fileClogParentRevs);
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182 }
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183
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184 /**
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185 * Client's sink for revision differences.
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186 *
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187 * When implemented, clients shall not expect new {@link Block blocks} instances in each call.
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188 *
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189 * In case more information about annotated revision is needed, inspector instances may supply
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190 * {@link RevisionDescriptor.Recipient} through {@link Adaptable}.
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191 */
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192 @Callback
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193 public interface Inspector {
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194 void same(EqualBlock block) throws HgCallbackTargetException;
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195 void added(AddBlock block) throws HgCallbackTargetException;
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196 void changed(ChangeBlock block) throws HgCallbackTargetException;
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197 void deleted(DeleteBlock block) throws HgCallbackTargetException;
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198 }
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199
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200 /**
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201 * No need to keep "Block" prefix as long as there's only one {@link Inspector}
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202 */
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203 @Deprecated
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204 public interface BlockInspector extends Inspector {
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205 }
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206
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207 /**
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208 * Represents content of a block, either as a sequence of bytes or a
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209 * sequence of smaller blocks (lines), if appropriate (according to usage context).
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210 *
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211 * This approach allows line-by-line access to content data along with complete byte sequence for the whole block, i.e.
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212 * <pre>
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213 * BlockData bd = addBlock.addedLines()
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214 * // bd describes data from the addition completely.
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215 * // elements of the BlockData are lines
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216 * bd.elementCount() == addBlock.totalAddedLines();
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217 * // one cat obtain complete addition with
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218 * byte[] everythingAdded = bd.asArray();
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219 * // or iterate line by line
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220 * for (int i = 0; i < bd.elementCount(); i++) {
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221 * byte[] lineContent = bd.elementAt(i);
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222 * String line = new String(lineContent, fileEncodingCharset);
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223 * }
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224 * where bd.elementAt(0) is the line at index addBlock.firstAddedLine()
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225 * </pre>
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226 *
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227 * LineData or ChunkData?
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228 */
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229 public interface BlockData {
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230 BlockData elementAt(int index);
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231 int elementCount();
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232 byte[] asArray();
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233 }
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234
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235 /**
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236 * {@link Inspector} may optionally request extra information about revisions
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237 * being inspected, denoting itself as a {@link RevisionDescriptor.Recipient}. This class
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238 * provides complete information about file revision under annotation now.
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239 */
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240 public interface RevisionDescriptor {
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241 /**
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242 * @return complete source of the diff origin, never <code>null</code>
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243 */
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244 BlockData origin();
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245 /**
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246 * @return complete source of the diff target, never <code>null</code>
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247 */
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248 BlockData target();
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249 /**
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250 * @return changeset revision index of original file, or {@link HgRepository#NO_REVISION} if it's the very first revision
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251 */
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252 int originChangesetIndex();
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253 /**
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254 * @return changeset revision index of the target file
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255 */
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256 int targetChangesetIndex();
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257 /**
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258 * @return <code>true</code> if this revision is merge
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259 */
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260 boolean isMerge();
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261 /**
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262 * @return changeset revision index of the second, merged parent
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263 */
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264 int mergeChangesetIndex();
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265 /**
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266 * @return revision index of the change in target file's revlog
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267 */
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268 int fileRevisionIndex();
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269
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270 /**
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271 * @return file object under blame (target file)
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272 */
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273 HgDataFile file();
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274
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275 /**
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276 * Implement to indicate interest in {@link RevisionDescriptor}.
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277 *
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278 * Note, instance of {@link RevisionDescriptor} is the same for
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279 * {@link #start(RevisionDescriptor)} and {@link #done(RevisionDescriptor)}
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280 * methods, and not necessarily a new one (i.e. <code>==</code>) for the next
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281 * revision announced.
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282 */
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283 @Callback
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284 public interface Recipient {
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285 /**
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286 * Comes prior to any change {@link Block blocks}
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287 */
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288 void start(RevisionDescriptor revisionDescription) throws HgCallbackTargetException;
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289 /**
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290 * Comes after all change {@link Block blocks} were dispatched
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291 */
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292 void done(RevisionDescriptor revisionDescription) throws HgCallbackTargetException;
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293 }
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294 }
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295
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296 /**
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297 * Each change block comes from a single origin, blocks that are result of a merge
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298 * have {@link #originChangesetIndex()} equal to {@link RevisionDescriptor#mergeChangesetIndex()}.
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299 */
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300 public interface Block {
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301 int originChangesetIndex();
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302 int targetChangesetIndex();
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303 }
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304
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305 public interface EqualBlock extends Block {
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306 int originStart();
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307 int targetStart();
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308 int length();
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309 BlockData content();
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310 }
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311
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312 public interface AddBlock extends Block {
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313 /**
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314 * @return line index in the origin where this block is inserted
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315 */
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316 int insertedAt();
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317 /**
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318 * @return line index of the first added line in the target revision
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319 */
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320 int firstAddedLine();
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321 /**
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322 * @return number of added lines in this block
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323 */
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324 int totalAddedLines();
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325 /**
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326 * @return content of added lines
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327 */
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328 BlockData addedLines();
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329 }
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330 public interface DeleteBlock extends Block {
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331 /**
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332 * @return line index in the target revision were this deleted block would be
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333 */
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334 int removedAt();
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335 /**
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336 * @return line index of the first removed line in the original revision
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337 */
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338 int firstRemovedLine();
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339 /**
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340 * @return number of deleted lines in this block
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341 */
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342 int totalRemovedLines();
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343 /**
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344 * @return content of deleted lines
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345 */
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346 BlockData removedLines();
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347 }
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348 public interface ChangeBlock extends AddBlock, DeleteBlock {
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349 }
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350
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351
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diff changeset
352 private static int fileRevIndex(HgDataFile df, int csetRevIndex) {
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diff changeset
353 Nodeid fileRev = df.getRepo().getManifest().getFileRevision(csetRevIndex, df.getPath());
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diff changeset
354 return df.getRevisionIndex(fileRev);
542
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355 }
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356
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diff changeset
357 private static class FileRevisionHistoryChunk {
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358 private final HgDataFile df;
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diff changeset
359 // change ancestry, sequence of file revisions
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diff changeset
360 private IntVector fileRevsToVisit;
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diff changeset
361 // parent pairs of complete file history
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diff changeset
362 private IntVector fileParentRevs;
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diff changeset
363 // map file revision to changelog revision (sparse array, only file revisions to visit are set)
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diff changeset
364 private int[] file2changelog;
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diff changeset
365 private int originChangelogRev = BAD_REVISION, originFileRev = BAD_REVISION;
542
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366
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diff changeset
367 public FileRevisionHistoryChunk(HgDataFile file) {
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diff changeset
368 df = file;
542
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369 }
545
15b406c7cd9d First round of annotate file is functional
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diff changeset
370
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diff changeset
371 public void init(int changelogRevisionIndex) {
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diff changeset
372 // XXX df.indexWalk(0, fileRevIndex, ) might be more effective
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diff changeset
373 int fileRevIndex = fileRevIndex(df, changelogRevisionIndex);
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diff changeset
374 int[] fileRevParents = new int[2];
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diff changeset
375 fileParentRevs = new IntVector((fileRevIndex+1) * 2, 0);
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diff changeset
376 fileParentRevs.add(NO_REVISION, NO_REVISION); // parents of fileRevIndex == 0
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377 for (int i = 1; i <= fileRevIndex; i++) {
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diff changeset
378 df.parents(i, fileRevParents, null, null);
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diff changeset
379 fileParentRevs.add(fileRevParents[0], fileRevParents[1]);
545
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diff changeset
380 }
569
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diff changeset
381 // fileRevsToVisit keep file change ancestry from new to old
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382 fileRevsToVisit = new IntVector(fileRevIndex + 1, 0);
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diff changeset
383 // keep map of file revision to changelog revision
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diff changeset
384 file2changelog = new int[fileRevIndex+1];
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diff changeset
385 // only elements worth visit would get mapped, so there would be unfilled areas in the file2changelog,
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diff changeset
386 // prevent from error (make it explicit) by bad value
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diff changeset
387 Arrays.fill(file2changelog, BAD_REVISION);
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388 LinkedList<Integer> queue = new LinkedList<Integer>();
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diff changeset
389 BitSet seen = new BitSet(fileRevIndex + 1);
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diff changeset
390 queue.add(fileRevIndex);
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diff changeset
391 do {
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diff changeset
392 int x = queue.removeFirst();
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diff changeset
393 if (seen.get(x)) {
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diff changeset
394 continue;
549
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
395 }
569
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diff changeset
396 seen.set(x);
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diff changeset
397 fileRevsToVisit.add(x);
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diff changeset
398 file2changelog[x] = df.getChangesetRevisionIndex(x);
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diff changeset
399 int p1 = fileParentRevs.get(2*x);
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diff changeset
400 int p2 = fileParentRevs.get(2*x + 1);
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diff changeset
401 if (p1 != NO_REVISION) {
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diff changeset
402 queue.addLast(p1);
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diff changeset
403 }
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diff changeset
404 if (p2 != NO_REVISION) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
405 queue.addLast(p2);
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diff changeset
406 }
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diff changeset
407 } while (!queue.isEmpty());
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parents: 568
diff changeset
408 // make sure no child is processed before we handled all (grand-)parents of the element
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
409 fileRevsToVisit.sort(false);
549
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
410 }
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
411
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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diff changeset
412 public void linkTo(FileRevisionHistoryChunk target) {
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parents: 568
diff changeset
413 // assume that target.init() has been called already
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
414 if (target == null) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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diff changeset
415 return;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
416 }
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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diff changeset
417 target.originFileRev = fileRevsToVisit.get(0); // files to visit are new to old
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diff changeset
418 target.originChangelogRev = changeset(target.originFileRev);
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
419 }
573
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
420
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
421 /**
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diff changeset
422 * Mark revision closest(ceil) to specified as the very first one (no parents)
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diff changeset
423 */
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diff changeset
424 public void chopAtChangeset(int firstChangelogRevOfInterest) {
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
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parents: 570
diff changeset
425 if (firstChangelogRevOfInterest == 0) {
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
426 return; // nothing to do
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
427 }
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
428 int i = 0, x = fileRevsToVisit.size(), fileRev = BAD_REVISION;
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
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parents: 570
diff changeset
429 // fileRevsToVisit is new to old, greater numbers to smaller
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
430 while (i < x && changeset(fileRev = fileRevsToVisit.get(i)) >= firstChangelogRevOfInterest) {
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
431 i++;
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
432 }
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
433 assert fileRev != BAD_REVISION; // there's at least 1 revision in fileRevsToVisit
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
434 if (i == x && changeset(fileRev) != firstChangelogRevOfInterest) {
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
435 assert false : "Requested changeset shall belong to the chunk";
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
436 return;
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
437 }
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
438 fileRevsToVisit.trimTo(i); // no need to iterate more
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
439 // pretend fileRev got no parents
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
440 fileParentRevs.set(fileRev * 2, NO_REVISION);
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
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parents: 570
diff changeset
441 fileParentRevs.set(fileRev, NO_REVISION);
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
442 }
e49f9d9513fa Partial blame when start/end revisions are in the middle of a single filename history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 570
diff changeset
443
569
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diff changeset
444 public int[] fileRevisions(HgIterateDirection iterateOrder) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
445 // fileRevsToVisit is { r10, r7, r6, r5, r0 }, new to old
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
446 int[] rv = fileRevsToVisit.toArray();
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
447 if (iterateOrder == OldToNew) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
448 // reverse return value
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
449 for (int a = 0, b = rv.length-1; a < b; a++, b--) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
450 int t = rv[b];
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
451 rv[b] = rv[a];
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
452 rv[a] = t;
549
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
453 }
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
454 }
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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diff changeset
455 return rv;
555
e623aa2ca526 Annotate: RevisionDescriptor provides extra knowledge about inspected/annotated revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 554
diff changeset
456 }
e623aa2ca526 Annotate: RevisionDescriptor provides extra knowledge about inspected/annotated revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 554
diff changeset
457
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
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parents: 568
diff changeset
458 public int changeset(int fileRevIndex) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
459 return file2changelog[fileRevIndex];
555
e623aa2ca526 Annotate: RevisionDescriptor provides extra knowledge about inspected/annotated revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 554
diff changeset
460 }
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
461
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
462 public void fillFileParents(int fileRevIndex, int[] fileParents) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
463 if (fileRevIndex == 0 && originFileRev != BAD_REVISION) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
464 // this chunk continues another file
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
465 assert originFileRev != NO_REVISION;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
466 fileParents[0] = originFileRev;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
467 fileParents[1] = NO_REVISION;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
468 return;
557
b9e5ac26dd83 Annotate: Line annotation needs true line position from merged blocks; test-annotate repo updated to show elements from both parents in the merged revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 556
diff changeset
469 }
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
470 fileParents[0] = fileParentRevs.get(fileRevIndex * 2);
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
471 fileParents[1] = fileParentRevs.get(fileRevIndex * 2 + 1);
557
b9e5ac26dd83 Annotate: Line annotation needs true line position from merged blocks; test-annotate repo updated to show elements from both parents in the merged revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 556
diff changeset
472 }
569
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
473
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
474 public void fillCsetParents(int fileRevIndex, int[] csetParents) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
475 if (fileRevIndex == 0 && originFileRev != BAD_REVISION) {
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
476 assert originFileRev != NO_REVISION;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
477 csetParents[0] = originChangelogRev;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
478 csetParents[1] = NO_REVISION; // I wonder if possible to start a copy with two parents?
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
479 return;
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
480 }
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
481 int fp1 = fileParentRevs.get(fileRevIndex * 2);
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
482 int fp2 = fileParentRevs.get(fileRevIndex * 2 + 1);
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
483 csetParents[0] = fp1 == NO_REVISION ? NO_REVISION : changeset(fp1);
c4fd1037bc6f Support for copy/rename follow/no-follow for annotate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 568
diff changeset
484 csetParents[1] = fp2 == NO_REVISION ? NO_REVISION : changeset(fp2);
549
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
485 }
83afa680555d Annotate merge revision (combined diff against two parents without looking further)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 548
diff changeset
486 }
542
a71a05ec11bc Towards annotate/blame support: general outline of the functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
487 }