Mercurial > jhg

annotate src/org/tmatesoft/hg/core/HgLogCommand.java @ 450:03fd8d079e9c smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Share PhasesHelper instance among few HgChangesets (mostly affects HgChangesetTreeHandler case)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 07 Jun 2012 17:06:23 +0200
parents 994b5813a925
children 0ae53c32ecef
rev   line source
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.core;
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18
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19 import static org.tmatesoft.hg.repo.HgRepository.TIP;
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20
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21 import java.util.ArrayList;
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22 import java.util.Arrays;
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23 import java.util.Calendar;
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24 import java.util.Collection;
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25 import java.util.Collections;
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26 import java.util.ConcurrentModificationException;
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27 import java.util.LinkedList;
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28 import java.util.List;
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29 import java.util.Set;
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30 import java.util.TreeSet;
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31
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32 import org.tmatesoft.hg.internal.IntMap;
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33 import org.tmatesoft.hg.internal.IntVector;
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34 import org.tmatesoft.hg.repo.HgChangelog;
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35 import org.tmatesoft.hg.repo.HgChangelog.RawChangeset;
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36 import org.tmatesoft.hg.repo.HgDataFile;
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37 import org.tmatesoft.hg.repo.HgInternals;
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38 import org.tmatesoft.hg.repo.HgRepository;
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39 import org.tmatesoft.hg.repo.HgStatusCollector;
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40 import org.tmatesoft.hg.util.CancelSupport;
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41 import org.tmatesoft.hg.util.CancelledException;
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42 import org.tmatesoft.hg.util.Pair;
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43 import org.tmatesoft.hg.util.Path;
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44 import org.tmatesoft.hg.util.ProgressSupport;
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47 /**
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48 * Access to changelog, 'hg log' command counterpart.
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49 *
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50 * <pre>
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51 * Usage:
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52 * new LogCommand().limit(20).branch("maintenance-2.1").user("me").execute(new MyHandler());
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53 * </pre>
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54 * Not thread-safe (each thread has to use own {@link HgLogCommand} instance).
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55 *
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56 * @author Artem Tikhomirov
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57 * @author TMate Software Ltd.
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58 */
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59 public class HgLogCommand extends HgAbstractCommand<HgLogCommand> implements HgChangelog.Inspector {
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61 private final HgRepository repo;
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62 private Set<String> users;
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63 private Set<String> branches;
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64 private int limit = 0, count = 0;
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65 private int startRev = 0, endRev = TIP;
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66 private Calendar date;
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67 private Path file;
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68 private boolean followHistory; // makes sense only when file != null
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69 private ChangesetTransformer csetTransform;
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70 private HgChangelog.ParentWalker parentHelper;
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71
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72 public HgLogCommand(HgRepository hgRepo) {
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73 repo = hgRepo;
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74 }
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76 /**
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77 * Limit search to specified user. Multiple user names may be specified. Once set, user names can't be
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78 * cleared, use new command instance in such cases.
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79 * @param user - full or partial name of the user, case-insensitive, non-null.
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80 * @return <code>this</code> instance for convenience
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81 * @throws IllegalArgumentException when argument is null
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82 */
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83 public HgLogCommand user(String user) {
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84 if (user == null) {
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85 throw new IllegalArgumentException();
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86 }
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87 if (users == null) {
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88 users = new TreeSet<String>();
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89 }
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90 users.add(user.toLowerCase());
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91 return this;
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92 }
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94 /**
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95 * Limit search to specified branch. Multiple branch specification possible (changeset from any of these
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96 * would be included in result). If unspecified, all branches are considered. There's no way to clean branch selection
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97 * once set, create fresh new command instead.
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98 * @param branch - branch name, case-sensitive, non-null.
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99 * @return <code>this</code> instance for convenience
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100 * @throws IllegalArgumentException when branch argument is null
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101 */
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102 public HgLogCommand branch(String branch) {
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103 if (branch == null) {
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104 throw new IllegalArgumentException();
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105 }
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106 if (branches == null) {
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107 branches = new TreeSet<String>();
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108 }
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109 branches.add(branch);
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110 return this;
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111 }
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113 // limit search to specific date
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114 // multiple?
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115 public HgLogCommand date(Calendar date) {
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116 this.date = date;
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117 // FIXME implement
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118 // isSet(field) - false => don't use in detection of 'same date'
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119 throw HgRepository.notImplemented();
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120 }
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121
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122 /**
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123 *
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124 * @param num - number of changeset to produce. Pass 0 to clear the limit.
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125 * @return <code>this</code> instance for convenience
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126 */
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127 public HgLogCommand limit(int num) {
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128 limit = num;
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129 return this;
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130 }
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131
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132 /**
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133 * Limit to specified subset of Changelog, [min(rev1,rev2), max(rev1,rev2)], inclusive.
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134 * Revision may be specified with {@link HgRepository#TIP}
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135 * @param rev1 - revision local index
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136 * @param rev2 - revision local index
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137 * @return <code>this</code> instance for convenience
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138 */
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139 public HgLogCommand range(int rev1, int rev2) {
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140 if (rev1 != TIP && rev2 != TIP) {
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141 startRev = rev2 < rev1 ? rev2 : rev1;
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142 endRev = startRev == rev2 ? rev1 : rev2;
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143 } else if (rev1 == TIP && rev2 != TIP) {
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144 startRev = rev2;
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145 endRev = rev1;
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146 } else {
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147 startRev = rev1;
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148 endRev = rev2;
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149 }
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150 return this;
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151 }
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152
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153 /**
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154 * Select specific changeset
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155 *
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156 * @param nid changeset revision
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157 * @return <code>this</code> for convenience
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158 * @throws HgInvalidRevisionException if supplied nodeid doesn't identify any revision from this revlog
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159 * @throws HgInvalidControlFileException if access to revlog index/data entry failed
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160 */
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161 public HgLogCommand changeset(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException {
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162 // XXX perhaps, shall support multiple (...) arguments and extend #execute to handle not only range, but also set of revisions.
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163 final int csetRevIndex = repo.getChangelog().getRevisionIndex(nid);
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164 return range(csetRevIndex, csetRevIndex);
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165 }
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166
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167 /**
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168 * Visit history of a given file only.
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169 * @param file path relative to repository root. Pass <code>null</code> to reset.
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170 * @param followCopyRename true to report changesets of the original file(-s), if copy/rename ever occured to the file.
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171 */
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172 public HgLogCommand file(Path file, boolean followCopyRename) {
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173 // multiple? Bad idea, would need to include extra method into Handler to tell start of next file
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174 this.file = file;
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175 followHistory = followCopyRename;
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176 return this;
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177 }
142
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178
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179 /**
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180 * Handy analog of {@link #file(Path, boolean)} when clients' paths come from filesystem and need conversion to repository's
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181 */
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182 public HgLogCommand file(String file, boolean followCopyRename) {
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183 return file(Path.create(repo.getToRepoPathHelper().rewrite(file)), followCopyRename);
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184 }
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185
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186 /**
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187 * Similar to {@link #execute(org.tmatesoft.hg.repo.RawChangeset.Inspector)}, collects and return result as a list.
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188 */
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189 public List<HgChangeset> execute() throws HgDataStreamException {
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190 CollectHandler collector = new CollectHandler();
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191 try {
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192 execute(collector);
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193 } catch (HgException ex) {
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194 // can't happen as long as our CollectHandler doesn't throw any exception
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195 throw new HgBadStateException(ex.getCause());
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196 } catch (CancelledException ex) {
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197 // can't happen, see above
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198 throw new HgBadStateException(ex);
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199 }
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200 return collector.getChanges();
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201 }
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202
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203 /**
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204 *
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205 * @param handler callback to process changesets.
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206 * @throws HgCallbackTargetException to re-throw exception from the handler
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207 * @throws HgException FIXME EXCEPTIONS
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208 * @throws CancelledException if execution of the command was cancelled
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209 * @throws IllegalArgumentException when inspector argument is null
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210 * @throws ConcurrentModificationException if this log command instance is already running
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211 */
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212 public void execute(HgChangesetHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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213 if (handler == null) {
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214 throw new IllegalArgumentException();
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215 }
193
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216 if (csetTransform != null) {
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217 throw new ConcurrentModificationException();
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218 }
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219 final ProgressSupport progressHelper = getProgressSupport(handler);
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220 try {
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221 count = 0;
328
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222 HgChangelog.ParentWalker pw = getParentHelper(file == null); // leave it uninitialized unless we iterate whole repo
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223 // ChangesetTransfrom creates a blank PathPool, and #file(String, boolean) above
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224 // may utilize it as well. CommandContext? How about StatusCollector there as well?
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225 csetTransform = new ChangesetTransformer(repo, handler, pw, progressHelper, getCancelSupport(handler, true));
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226 if (file == null) {
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227 progressHelper.start(endRev - startRev + 1);
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228 repo.getChangelog().range(startRev, endRev, this);
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229 csetTransform.checkFailure();
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230 } else {
215
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231 progressHelper.start(-1/*XXX enum const, or a dedicated method startUnspecified(). How about startAtLeast(int)?*/);
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232 HgDataFile fileNode = repo.getFileNode(file);
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233 fileNode.history(startRev, endRev, this);
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234 csetTransform.checkFailure();
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235 if (fileNode.isCopy()) {
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236 // even if we do not follow history, report file rename
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237 do {
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238 if (handler instanceof FileHistoryHandler) {
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239 HgFileRevision src = new HgFileRevision(repo, fileNode.getCopySourceRevision(), fileNode.getCopySourceName());
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240 HgFileRevision dst = new HgFileRevision(repo, fileNode.getRevision(0), fileNode.getPath(), src.getPath());
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241 try {
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242 ((FileHistoryHandler) handler).copy(src, dst);
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243 } catch (HgCallbackTargetException.Wrap ex) {
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244 throw new HgCallbackTargetException(ex).setRevision(fileNode.getCopySourceRevision()).setFileName(fileNode.getCopySourceName());
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245 }
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246 }
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247 if (limit > 0 && count >= limit) {
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248 // if limit reach, follow is useless.
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249 break;
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250 }
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251 if (followHistory) {
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252 fileNode = repo.getFileNode(fileNode.getCopySourceName());
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253 fileNode.history(this);
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254 csetTransform.checkFailure();
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255 }
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256 } while (followHistory && fileNode.isCopy());
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257 }
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258 }
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259 } finally {
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260 csetTransform = null;
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261 progressHelper.done();
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262 }
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263 }
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264
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265 /**
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266 * TODO documentation
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267 * @param handler
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268 * @throws HgCallbackTargetException to re-throw exception from the handler
383
994b5813a925 Few comments
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269 * @throws HgException FIXME EXCEPTIONS
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270 * @throws CancelledException if execution of the command was cancelled
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271 */
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272 public void execute(HgChangesetTreeHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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273 if (handler == null) {
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274 throw new IllegalArgumentException();
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275 }
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276 if (csetTransform != null) {
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277 throw new ConcurrentModificationException();
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278 }
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279 if (file == null) {
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280 throw new IllegalArgumentException("History tree is supported for files only (at least now), please specify file");
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281 }
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282 if (followHistory) {
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283 throw new UnsupportedOperationException("Can't follow file history when building tree (yet?)");
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284 }
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285 class TreeBuildInspector implements HgChangelog.ParentInspector, HgChangelog.RevisionInspector {
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286 HistoryNode[] completeHistory;
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287 int[] commitRevisions;
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288
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289 public void next(int revisionNumber, Nodeid revision, int linkedRevision) {
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290 commitRevisions[revisionNumber] = linkedRevision;
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291 }
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292
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293 public void next(int revisionNumber, Nodeid revision, int parent1, int parent2, Nodeid nidParent1, Nodeid nidParent2) {
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294 HistoryNode p1 = null, p2 = null;
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295 if (parent1 != -1) {
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296 p1 = completeHistory[parent1];
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297 }
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298 if (parent2!= -1) {
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299 p2 = completeHistory[parent2];
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300 }
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301 completeHistory[revisionNumber] = new HistoryNode(commitRevisions[revisionNumber], revision, p1, p2);
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302 }
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303
366
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304 HistoryNode[] go(HgDataFile fileNode) throws HgInvalidControlFileException {
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305 completeHistory = new HistoryNode[fileNode.getRevisionCount()];
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306 commitRevisions = new int[completeHistory.length];
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307 fileNode.walk(0, TIP, this);
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308 return completeHistory;
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309 }
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310 };
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311 final ProgressSupport progressHelper = getProgressSupport(handler);
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312 progressHelper.start(4);
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313 final CancelSupport cancelHelper = getCancelSupport(handler, true);
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314 cancelHelper.checkCancelled();
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315 HgDataFile fileNode = repo.getFileNode(file);
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316 // build tree of nodes according to parents in file's revlog
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317 final TreeBuildInspector treeBuildInspector = new TreeBuildInspector();
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318 final HistoryNode[] completeHistory = treeBuildInspector.go(fileNode);
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319 progressHelper.worked(1);
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320 cancelHelper.checkCancelled();
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321 ElementImpl ei = new ElementImpl(treeBuildInspector.commitRevisions.length);
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322 final ProgressSupport ph2;
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323 if (treeBuildInspector.commitRevisions.length < 100 /*XXX is it really worth it? */) {
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324 ei.initTransform();
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325 repo.getChangelog().range(ei, treeBuildInspector.commitRevisions);
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diff changeset
326 progressHelper.worked(1);
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327 ph2 = new ProgressSupport.Sub(progressHelper, 2);
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328 } else {
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329 ph2 = new ProgressSupport.Sub(progressHelper, 3);
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330 }
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331 try {
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332 ph2.start(completeHistory.length);
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333 // XXX shall sort completeHistory according to changeset numbers?
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334 for (int i = 0; i < completeHistory.length; i++ ) {
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335 final HistoryNode n = completeHistory[i];
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336 handler.next(ei.init(n));
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337 ph2.worked(1);
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338 cancelHelper.checkCancelled();
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339 }
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340 } catch (HgCallbackTargetException.Wrap ex) {
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341 throw new HgCallbackTargetException(ex);
328
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342 }
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343 progressHelper.done();
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344 }
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345
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346 //
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347
154
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348 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
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349 if (limit > 0 && count >= limit) {
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350 return;
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351 }
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352 if (branches != null && !branches.contains(cset.branch())) {
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353 return;
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354 }
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355 if (users != null) {
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356 String csetUser = cset.user().toLowerCase();
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357 boolean found = false;
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358 for (String u : users) {
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359 if (csetUser.indexOf(u) != -1) {
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360 found = true;
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361 break;
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362 }
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363 }
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364 if (!found) {
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365 return;
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366 }
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367 }
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368 if (date != null) {
383
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369 // FIXME implement date support for log
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370 }
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371 count++;
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372 csetTransform.next(revisionNumber, nodeid, cset);
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373 }
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374
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375 private HgChangelog.ParentWalker getParentHelper(boolean create) throws HgInvalidControlFileException {
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376 if (parentHelper == null && create) {
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377 parentHelper = repo.getChangelog().new ParentWalker();
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378 parentHelper.init();
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379 }
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380 return parentHelper;
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381 }
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382
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383
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384 /**
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385 * When {@link HgLogCommand} is executed against file, handler passed to {@link HgLogCommand#execute(HgChangesetHandler)} may optionally
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386 * implement this interface to get information about file renames. Method {@link #copy(HgFileRevision, HgFileRevision)} would
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387 * get invoked prior any changeset of the original file (if file history being followed) is reported via {@link #next(HgChangeset)}.
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388 *
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389 * For {@link HgLogCommand#file(Path, boolean)} with renamed file path and follow argument set to false,
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390 * {@link #copy(HgFileRevision, HgFileRevision)} would be invoked for the first copy/rename in the history of the file, but not
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391 * followed by any changesets.
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392 *
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393 * @author Artem Tikhomirov
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394 * @author TMate Software Ltd.
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395 */
370
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396 public interface FileHistoryHandler extends HgChangesetHandler { // FIXME move to stanalone class file, perhaps?
80
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397 // XXX perhaps, should distinguish copy from rename? And what about merged revisions and following them?
370
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398 /**
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399 * @throws HgCallbackTargetException.Wrap wrapper object for any exception user code may produce. Wrapped exception would get re-thrown with {@link HgCallbackTargetException}
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400 */
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401 void copy(HgFileRevision from, HgFileRevision to) throws HgCallbackTargetException.Wrap;
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402 }
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403
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404 public static class CollectHandler implements HgChangesetHandler {
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405 private final List<HgChangeset> result = new LinkedList<HgChangeset>();
64
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406
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407 public List<HgChangeset> getChanges() {
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408 return Collections.unmodifiableList(result);
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409 }
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410
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411 public void next(HgChangeset changeset) {
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412 result.add(changeset.clone());
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413 }
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414 }
328
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415
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416 private static class HistoryNode {
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417 final int changeset;
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418 final Nodeid fileRevision;
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419 final HistoryNode parent1, parent2;
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420 List<HistoryNode> children;
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421
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422 HistoryNode(int cs, Nodeid revision, HistoryNode p1, HistoryNode p2) {
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423 changeset = cs;
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424 fileRevision = revision;
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425 parent1 = p1;
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426 parent2 = p2;
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427 if (p1 != null) {
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428 p1.addChild(this);
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429 }
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430 if (p2 != null) {
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431 p2.addChild(this);
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432 }
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433 }
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434
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435 void addChild(HistoryNode child) {
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436 if (children == null) {
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437 children = new ArrayList<HistoryNode>(2);
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diff changeset
438 }
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439 children.add(child);
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440 }
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441 }
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442
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443 private class ElementImpl implements HgChangesetTreeHandler.TreeElement, HgChangelog.Inspector {
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444 private HistoryNode historyNode;
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445 private Pair<HgChangeset, HgChangeset> parents;
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446 private List<HgChangeset> children;
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447 private IntMap<HgChangeset> cachedChangesets;
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448 private ChangesetTransformer.Transformation transform;
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449 private Nodeid changesetRevision;
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450 private Pair<Nodeid,Nodeid> parentRevisions;
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451 private List<Nodeid> childRevisions;
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452
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453 public ElementImpl(int total) {
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454 cachedChangesets = new IntMap<HgChangeset>(total);
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455 }
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456
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457 ElementImpl init(HistoryNode n) {
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458 historyNode = n;
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459 parents = null;
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460 children = null;
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461 changesetRevision = null;
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462 parentRevisions = null;
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463 childRevisions = null;
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464 return this;
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465 }
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466
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467 public Nodeid fileRevision() {
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468 return historyNode.fileRevision;
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469 }
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470
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diff changeset
471 public HgChangeset changeset() throws HgException {
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472 return get(historyNode.changeset)[0];
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473 }
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474
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475 public Pair<HgChangeset, HgChangeset> parents() throws HgException {
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476 if (parents != null) {
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477 return parents;
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478 }
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479 HistoryNode p;
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480 final int p1, p2;
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481 if ((p = historyNode.parent1) != null) {
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diff changeset
482 p1 = p.changeset;
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483 } else {
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484 p1 = -1;
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485 }
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diff changeset
486 if ((p = historyNode.parent2) != null) {
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diff changeset
487 p2 = p.changeset;
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parents: 322
diff changeset
488 } else {
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parents: 322
diff changeset
489 p2 = -1;
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parents: 322
diff changeset
490 }
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diff changeset
491 HgChangeset[] r = get(p1, p2);
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diff changeset
492 return parents = new Pair<HgChangeset, HgChangeset>(r[0], r[1]);
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diff changeset
493 }
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parents: 322
diff changeset
494
366
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diff changeset
495 public Collection<HgChangeset> children() throws HgException {
328
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diff changeset
496 if (children != null) {
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diff changeset
497 return children;
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parents: 322
diff changeset
498 }
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parents: 322
diff changeset
499 if (historyNode.children == null) {
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diff changeset
500 children = Collections.emptyList();
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501 } else {
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diff changeset
502 int[] childrentChangesetNumbers = new int[historyNode.children.size()];
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diff changeset
503 int j = 0;
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parents: 322
diff changeset
504 for (HistoryNode hn : historyNode.children) {
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diff changeset
505 childrentChangesetNumbers[j++] = hn.changeset;
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diff changeset
506 }
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diff changeset
507 children = Arrays.asList(get(childrentChangesetNumbers));
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diff changeset
508 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
509 return children;
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parents: 322
diff changeset
510 }
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parents: 322
diff changeset
511
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diff changeset
512 void populate(HgChangeset cs) {
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diff changeset
513 cachedChangesets.put(cs.getRevision(), cs);
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diff changeset
514 }
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parents: 322
diff changeset
515
366
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diff changeset
516 private HgChangeset[] get(int... changelogRevisionNumber) throws HgInvalidControlFileException {
328
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diff changeset
517 HgChangeset[] rv = new HgChangeset[changelogRevisionNumber.length];
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diff changeset
518 IntVector misses = new IntVector(changelogRevisionNumber.length, -1);
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diff changeset
519 for (int i = 0; i < changelogRevisionNumber.length; i++) {
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diff changeset
520 if (changelogRevisionNumber[i] == -1) {
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diff changeset
521 rv[i] = null;
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diff changeset
522 continue;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
523 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
524 HgChangeset cached = cachedChangesets.get(changelogRevisionNumber[i]);
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parents: 322
diff changeset
525 if (cached != null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
526 rv[i] = cached;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
527 } else {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
528 misses.add(changelogRevisionNumber[i]);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
529 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
530 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
531 if (misses.size() > 0) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
532 final int[] changesets2read = misses.toArray();
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
533 initTransform();
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parents: 322
diff changeset
534 repo.getChangelog().range(this, changesets2read);
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parents: 322
diff changeset
535 for (int changeset2read : changesets2read) {
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parents: 322
diff changeset
536 HgChangeset cs = cachedChangesets.get(changeset2read);
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parents: 322
diff changeset
537 if (cs == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
538 throw new HgBadStateException();
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
539 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
540 // HgChangelog.range may reorder changesets according to their order in the changelog
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
541 // thus need to find original index
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
542 boolean sanity = false;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
543 for (int i = 0; i < changelogRevisionNumber.length; i++) {
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parents: 322
diff changeset
544 if (changelogRevisionNumber[i] == cs.getRevision()) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
545 rv[i] = cs;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
546 sanity = true;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
547 break;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
548 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
549 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
550 assert sanity;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
551 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
552 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
553 return rv;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
554 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
555
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
556 // init only when needed
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
557 void initTransform() throws HgInvalidControlFileException {
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
558 if (transform == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
559 transform = new ChangesetTransformer.Transformation(new HgStatusCollector(repo)/*XXX try to reuse from context?*/, getParentHelper(false));
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
560 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
561 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
562
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
563 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
564 HgChangeset cs = transform.handle(revisionNumber, nodeid, cset);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
565 populate(cs.clone());
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
566 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
567
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
568 public Nodeid changesetRevision() {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
569 if (changesetRevision == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
570 changesetRevision = getRevision(historyNode.changeset);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
571 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
572 return changesetRevision;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
573 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
574
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
575 public Pair<Nodeid, Nodeid> parentRevisions() {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
576 if (parentRevisions == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
577 HistoryNode p;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
578 final Nodeid p1, p2;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
579 if ((p = historyNode.parent1) != null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
580 p1 = getRevision(p.changeset);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
581 } else {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
582 p1 = Nodeid.NULL;;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
583 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
584 if ((p = historyNode.parent2) != null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
585 p2 = getRevision(p.changeset);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
586 } else {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
587 p2 = Nodeid.NULL;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
588 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
589 parentRevisions = new Pair<Nodeid, Nodeid>(p1, p2);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
590 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
591 return parentRevisions;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
592 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
593
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
594 public Collection<Nodeid> childRevisions() {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
595 if (childRevisions != null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
596 return childRevisions;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
597 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
598 if (historyNode.children == null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
599 childRevisions = Collections.emptyList();
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
600 } else {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
601 ArrayList<Nodeid> rv = new ArrayList<Nodeid>(historyNode.children.size());
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
602 for (HistoryNode hn : historyNode.children) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
603 rv.add(getRevision(hn.changeset));
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
604 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
605 childRevisions = Collections.unmodifiableList(rv);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
606 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
607 return childRevisions;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
608 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
609
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
610 // reading nodeid involves reading index only, guess, can afford not to optimize multiple reads
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
611 private Nodeid getRevision(int changelogRevisionNumber) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
612 // XXX pipe through pool
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
613 HgChangeset cs = cachedChangesets.get(changelogRevisionNumber);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
614 if (cs != null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
615 return cs.getNodeid();
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
616 } else {
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
617 try {
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
618 return repo.getChangelog().getRevision(changelogRevisionNumber);
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
619 } catch (HgException ex) {
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
620 HgInternals.getContext(repo).getLog().error(getClass(), ex, null);
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
621 // FIXME propagate, perhaps?
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
622 return Nodeid.NULL; // FIXME this is quick-n-dirty hack to move forward with introducing exceptions
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
623 }
328
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
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a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
625 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
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626 }
64
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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