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annotate src/org/tmatesoft/hg/core/HgLogCommand.java @ 427:31a89587eb04

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FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 29 Mar 2012 17:14:35 +0200
parents 6437d261048a
children 12f668401613
rev   line source
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1 /*
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2 s * Copyright (c) 2011-2012 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.HgInvalidControlFileException;
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39 import org.tmatesoft.hg.repo.HgInvalidStateException;
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40 import org.tmatesoft.hg.repo.HgRepository;
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41 import org.tmatesoft.hg.repo.HgRuntimeException;
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42 import org.tmatesoft.hg.repo.HgStatusCollector;
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43 import org.tmatesoft.hg.util.CancelSupport;
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44 import org.tmatesoft.hg.util.CancelledException;
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45 import org.tmatesoft.hg.util.Pair;
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46 import org.tmatesoft.hg.util.Path;
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47 import org.tmatesoft.hg.util.ProgressSupport;
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50 /**
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51 * Access to changelog, 'hg log' command counterpart.
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52 *
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53 * <pre>
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54 * Usage:
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55 * new LogCommand().limit(20).branch("maintenance-2.1").user("me").execute(new MyHandler());
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56 * </pre>
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57 * Not thread-safe (each thread has to use own {@link HgLogCommand} instance).
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58 *
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59 * @author Artem Tikhomirov
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60 * @author TMate Software Ltd.
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61 */
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62 public class HgLogCommand extends HgAbstractCommand<HgLogCommand> implements HgChangelog.Inspector {
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64 private final HgRepository repo;
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65 private Set<String> users;
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66 private Set<String> branches;
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67 private int limit = 0, count = 0;
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68 private int startRev = 0, endRev = TIP;
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69 private Calendar date;
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70 private Path file;
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71 private boolean followHistory; // makes sense only when file != null
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72 private ChangesetTransformer csetTransform;
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73 private HgChangelog.ParentWalker parentHelper;
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75 public HgLogCommand(HgRepository hgRepo) {
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76 repo = hgRepo;
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77 }
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79 /**
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80 * Limit search to specified user. Multiple user names may be specified. Once set, user names can't be
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81 * cleared, use new command instance in such cases.
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82 * @param user - full or partial name of the user, case-insensitive, non-null.
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83 * @return <code>this</code> instance for convenience
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84 * @throws IllegalArgumentException when argument is null
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85 */
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86 public HgLogCommand user(String user) {
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87 if (user == null) {
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88 throw new IllegalArgumentException();
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89 }
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90 if (users == null) {
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91 users = new TreeSet<String>();
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92 }
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93 users.add(user.toLowerCase());
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94 return this;
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95 }
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97 /**
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98 * Limit search to specified branch. Multiple branch specification possible (changeset from any of these
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99 * would be included in result). If unspecified, all branches are considered. There's no way to clean branch selection
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100 * once set, create fresh new command instead.
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101 * @param branch - branch name, case-sensitive, non-null.
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102 * @return <code>this</code> instance for convenience
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103 * @throws IllegalArgumentException when branch argument is null
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104 */
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105 public HgLogCommand branch(String branch) {
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106 if (branch == null) {
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107 throw new IllegalArgumentException();
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108 }
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109 if (branches == null) {
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110 branches = new TreeSet<String>();
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111 }
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112 branches.add(branch);
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113 return this;
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114 }
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115
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116 // limit search to specific date
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117 // multiple?
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118 public HgLogCommand date(Calendar date) {
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119 this.date = date;
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120 // TODO post-1.0 implement
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121 // isSet(field) - false => don't use in detection of 'same date'
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122 throw HgRepository.notImplemented();
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123 }
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124
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125 /**
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126 *
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127 * @param num - number of changeset to produce. Pass 0 to clear the limit.
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128 * @return <code>this</code> instance for convenience
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129 */
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130 public HgLogCommand limit(int num) {
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131 limit = num;
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132 return this;
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133 }
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134
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135 /**
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136 * Limit to specified subset of Changelog, [min(rev1,rev2), max(rev1,rev2)], inclusive.
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137 * Revision may be specified with {@link HgRepository#TIP}
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138 *
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139 * @param rev1 - local index of start changeset revision
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140 * @param rev2 - index of end changeset revision
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141 * @return <code>this</code> instance for convenience
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142 */
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143 public HgLogCommand range(int rev1, int rev2) {
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144 if (rev1 != TIP && rev2 != TIP) {
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145 startRev = rev2 < rev1 ? rev2 : rev1;
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146 endRev = startRev == rev2 ? rev1 : rev2;
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147 } else if (rev1 == TIP && rev2 != TIP) {
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148 startRev = rev2;
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149 endRev = rev1;
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150 } else {
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151 startRev = rev1;
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152 endRev = rev2;
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153 }
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154 return this;
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155 }
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156
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157 /**
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158 * Select specific changeset
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159 *
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160 * @param nid changeset revision
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161 * @return <code>this</code> for convenience
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162 * @throws HgBadArgumentException if failed to find supplied changeset revision
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163 */
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164 public HgLogCommand changeset(Nodeid nid) throws HgBadArgumentException {
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165 // XXX perhaps, shall support multiple (...) arguments and extend #execute to handle not only range, but also set of revisions.
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166 try {
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167 final int csetRevIndex = repo.getChangelog().getRevisionIndex(nid);
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168 return range(csetRevIndex, csetRevIndex);
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169 } catch (HgRuntimeException ex) {
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170 throw new HgBadArgumentException("Can't find revision", ex).setRevision(nid);
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171 }
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172 }
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173
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174 /**
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175 * Visit history of a given file only.
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176 * @param file path relative to repository root. Pass <code>null</code> to reset.
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177 * @param followCopyRename true to report changesets of the original file(-s), if copy/rename ever occured to the file.
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178 */
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179 public HgLogCommand file(Path file, boolean followCopyRename) {
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180 // multiple? Bad idea, would need to include extra method into Handler to tell start of next file
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181 this.file = file;
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182 followHistory = followCopyRename;
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183 return this;
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184 }
142
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185
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186 /**
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187 * Handy analog of {@link #file(Path, boolean)} when clients' paths come from filesystem and need conversion to repository's
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188 */
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189 public HgLogCommand file(String file, boolean followCopyRename) {
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190 return file(Path.create(repo.getToRepoPathHelper().rewrite(file)), followCopyRename);
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191 }
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192
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193 /**
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194 * Similar to {@link #execute(HgChangesetHandler)}, collects and return result as a list.
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195 *
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196 * @see #execute(HgChangesetHandler)
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197 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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198 */
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199 public List<HgChangeset> execute() throws HgException {
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200 CollectHandler collector = new CollectHandler();
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201 try {
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202 execute(collector);
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203 } catch (HgCallbackTargetException ex) {
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204 // see below for CanceledException
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205 HgInvalidStateException t = new HgInvalidStateException("Internal error");
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206 t.initCause(ex);
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207 throw t;
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208 } catch (CancelledException ex) {
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209 // can't happen as long as our CollectHandler doesn't throw any exception
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210 HgInvalidStateException t = new HgInvalidStateException("Internal error");
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211 t.initCause(ex);
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212 throw t;
215
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213 }
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214 return collector.getChanges();
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215 }
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216
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217 /**
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218 * Iterate over range of changesets configured in the command.
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219 *
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220 * @param handler callback to process changesets.
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221 * @throws HgCallbackTargetException propagated exception from the handler
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222 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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223 * @throws CancelledException if execution of the command was cancelled
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224 * @throws IllegalArgumentException when inspector argument is null
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225 * @throws ConcurrentModificationException if this log command instance is already running
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226 */
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227 public void execute(HgChangesetHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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228 if (handler == null) {
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229 throw new IllegalArgumentException();
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230 }
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231 if (csetTransform != null) {
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232 throw new ConcurrentModificationException();
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233 }
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234 final ProgressSupport progressHelper = getProgressSupport(handler);
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235 try {
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236 count = 0;
328
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237 HgChangelog.ParentWalker pw = getParentHelper(file == null); // leave it uninitialized unless we iterate whole repo
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238 // ChangesetTransfrom creates a blank PathPool, and #file(String, boolean) above
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239 // may utilize it as well. CommandContext? How about StatusCollector there as well?
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240 csetTransform = new ChangesetTransformer(repo, handler, pw, progressHelper, getCancelSupport(handler, true));
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241 if (file == null) {
215
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242 progressHelper.start(endRev - startRev + 1);
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243 repo.getChangelog().range(startRev, endRev, this);
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244 csetTransform.checkFailure();
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245 } else {
215
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246 progressHelper.start(-1/*XXX enum const, or a dedicated method startUnspecified(). How about startAtLeast(int)?*/);
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247 HgDataFile fileNode = repo.getFileNode(file);
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248 if (!fileNode.exists()) {
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249 throw new HgPathNotFoundException(String.format("File %s not found in the repository", file), file);
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250 }
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251 fileNode.history(startRev, endRev, this);
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252 csetTransform.checkFailure();
126
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253 if (fileNode.isCopy()) {
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254 // even if we do not follow history, report file rename
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255 do {
427
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256 if (handler instanceof HgChangesetHandler.WithCopyHistory) {
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257 HgFileRevision src = new HgFileRevision(repo, fileNode.getCopySourceRevision(), null, fileNode.getCopySourceName());
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258 HgFileRevision dst = new HgFileRevision(repo, fileNode.getRevision(0), null, fileNode.getPath(), src.getPath());
427
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259 ((HgChangesetHandler.WithCopyHistory) handler).copy(src, dst);
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260 }
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261 if (limit > 0 && count >= limit) {
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262 // if limit reach, follow is useless.
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263 break;
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264 }
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265 if (followHistory) {
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266 fileNode = repo.getFileNode(fileNode.getCopySourceName());
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267 fileNode.history(this);
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268 csetTransform.checkFailure();
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269 }
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270 } while (followHistory && fileNode.isCopy());
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271 }
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272 }
427
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273 } catch (HgRuntimeException ex) {
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274 throw new HgLibraryFailureException(ex);
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275 } finally {
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276 csetTransform = null;
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277 progressHelper.done();
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278 }
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279 }
328
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280
370
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281 /**
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282 * Tree-wise iteration of a file history, with handy access to parent-child relations between changesets.
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283 *
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284 * @param handler callback to process changesets.
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285 * @throws HgCallbackTargetException propagated exception from the handler
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286 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
380
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287 * @throws CancelledException if execution of the command was cancelled
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288 * @throws IllegalArgumentException if command is not satisfied with its arguments
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289 * @throws ConcurrentModificationException if this log command instance is already running
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290 */
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291 public void execute(HgChangesetTreeHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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292 if (handler == null) {
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293 throw new IllegalArgumentException();
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294 }
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295 if (csetTransform != null) {
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296 throw new ConcurrentModificationException();
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297 }
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298 if (file == null) {
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299 throw new IllegalArgumentException("History tree is supported for files only (at least now), please specify file");
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300 }
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301 if (followHistory) {
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302 throw new UnsupportedOperationException("Can't follow file history when building tree (yet?)");
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303 }
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304 class TreeBuildInspector implements HgChangelog.ParentInspector, HgChangelog.RevisionInspector {
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305 HistoryNode[] completeHistory;
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306 int[] commitRevisions;
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307
328
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308 public void next(int revisionNumber, Nodeid revision, int linkedRevision) {
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309 commitRevisions[revisionNumber] = linkedRevision;
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310 }
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311
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312 public void next(int revisionNumber, Nodeid revision, int parent1, int parent2, Nodeid nidParent1, Nodeid nidParent2) {
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313 HistoryNode p1 = null, p2 = null;
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314 if (parent1 != -1) {
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315 p1 = completeHistory[parent1];
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316 }
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317 if (parent2!= -1) {
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318 p2 = completeHistory[parent2];
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319 }
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320 completeHistory[revisionNumber] = new HistoryNode(commitRevisions[revisionNumber], revision, p1, p2);
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321 }
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322
366
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323 HistoryNode[] go(HgDataFile fileNode) throws HgInvalidControlFileException {
328
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324 completeHistory = new HistoryNode[fileNode.getRevisionCount()];
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325 commitRevisions = new int[completeHistory.length];
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326 fileNode.walk(0, TIP, this);
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327 return completeHistory;
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328 }
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329 };
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330 final ProgressSupport progressHelper = getProgressSupport(handler);
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331 progressHelper.start(4);
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332 final CancelSupport cancelHelper = getCancelSupport(handler, true);
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333 cancelHelper.checkCancelled();
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334 HgDataFile fileNode = repo.getFileNode(file);
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335 // build tree of nodes according to parents in file's revlog
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336 final TreeBuildInspector treeBuildInspector = new TreeBuildInspector();
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337 final HistoryNode[] completeHistory = treeBuildInspector.go(fileNode);
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338 progressHelper.worked(1);
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339 cancelHelper.checkCancelled();
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340 ElementImpl ei = new ElementImpl(treeBuildInspector.commitRevisions.length);
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341 final ProgressSupport ph2;
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342 if (treeBuildInspector.commitRevisions.length < 100 /*XXX is it really worth it? */) {
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343 ei.initTransform();
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344 repo.getChangelog().range(ei, treeBuildInspector.commitRevisions);
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345 progressHelper.worked(1);
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346 ph2 = new ProgressSupport.Sub(progressHelper, 2);
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347 } else {
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348 ph2 = new ProgressSupport.Sub(progressHelper, 3);
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349 }
423
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350 ph2.start(completeHistory.length);
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diff changeset
351 // XXX shall sort completeHistory according to changeset numbers?
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parents: 419
diff changeset
352 for (int i = 0; i < completeHistory.length; i++ ) {
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parents: 419
diff changeset
353 final HistoryNode n = completeHistory[i];
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
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parents: 424
diff changeset
354 handler.treeElement(ei.init(n));
423
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parents: 419
diff changeset
355 ph2.worked(1);
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parents: 419
diff changeset
356 cancelHelper.checkCancelled();
328
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357 }
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358 progressHelper.done();
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359 }
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360
64
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361 //
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362
154
ba2bf656f00f Changeset => RawChangeset
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363 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
64
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364 if (limit > 0 && count >= limit) {
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365 return;
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366 }
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367 if (branches != null && !branches.contains(cset.branch())) {
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368 return;
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369 }
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diff changeset
370 if (users != null) {
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371 String csetUser = cset.user().toLowerCase();
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372 boolean found = false;
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373 for (String u : users) {
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374 if (csetUser.indexOf(u) != -1) {
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375 found = true;
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376 break;
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377 }
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parents:
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378 }
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379 if (!found) {
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380 return;
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381 }
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parents:
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382 }
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383 if (date != null) {
418
528b6780a8bd A bit of FIXME cleanup (mostly degraded to TODO post 1.0), comments and javadoc
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diff changeset
384 // TODO post-1.0 implement date support for log
64
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385 }
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386 count++;
193
37f3d4a596e4 Use common low to hi-level changeset api transformer
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diff changeset
387 csetTransform.next(revisionNumber, nodeid, cset);
64
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388 }
195
c9b305df0b89 Optimization: use ParentWalker to get changeset's parents, if possible. Do not keep duplicating nodeids and strings in manifest revisions
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diff changeset
389
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
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diff changeset
390 private HgChangelog.ParentWalker getParentHelper(boolean create) throws HgInvalidControlFileException {
328
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diff changeset
391 if (parentHelper == null && create) {
195
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diff changeset
392 parentHelper = repo.getChangelog().new ParentWalker();
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diff changeset
393 parentHelper.init();
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diff changeset
394 }
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diff changeset
395 return parentHelper;
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diff changeset
396 }
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parents: 193
diff changeset
397
64
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diff changeset
398
205
ffc5f6d59f7e HgLogCommand.Handler is used in few places, pull up to top-level class, HgChangesetHandler
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parents: 195
diff changeset
399 public static class CollectHandler implements HgChangesetHandler {
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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400 private final List<HgChangeset> result = new LinkedList<HgChangeset>();
64
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401
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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diff changeset
402 public List<HgChangeset> getChanges() {
64
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diff changeset
403 return Collections.unmodifiableList(result);
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parents:
diff changeset
404 }
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parents:
diff changeset
405
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 424
diff changeset
406 public void cset(HgChangeset changeset) {
64
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diff changeset
407 result.add(changeset.clone());
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parents:
diff changeset
408 }
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
409 }
328
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diff changeset
410
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diff changeset
411 private static class HistoryNode {
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diff changeset
412 final int changeset;
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diff changeset
413 final Nodeid fileRevision;
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diff changeset
414 final HistoryNode parent1, parent2;
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diff changeset
415 List<HistoryNode> children;
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diff changeset
416
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diff changeset
417 HistoryNode(int cs, Nodeid revision, HistoryNode p1, HistoryNode p2) {
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diff changeset
418 changeset = cs;
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diff changeset
419 fileRevision = revision;
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diff changeset
420 parent1 = p1;
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diff changeset
421 parent2 = p2;
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diff changeset
422 if (p1 != null) {
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diff changeset
423 p1.addChild(this);
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parents: 322
diff changeset
424 }
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diff changeset
425 if (p2 != null) {
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diff changeset
426 p2.addChild(this);
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parents: 322
diff changeset
427 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
428 }
a674b8590362 Move file tree history to upper API level
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diff changeset
429
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diff changeset
430 void addChild(HistoryNode child) {
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diff changeset
431 if (children == null) {
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diff changeset
432 children = new ArrayList<HistoryNode>(2);
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parents: 322
diff changeset
433 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
434 children.add(child);
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parents: 322
diff changeset
435 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
436 }
a674b8590362 Move file tree history to upper API level
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diff changeset
437
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diff changeset
438 private class ElementImpl implements HgChangesetTreeHandler.TreeElement, HgChangelog.Inspector {
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diff changeset
439 private HistoryNode historyNode;
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diff changeset
440 private Pair<HgChangeset, HgChangeset> parents;
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diff changeset
441 private List<HgChangeset> children;
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diff changeset
442 private IntMap<HgChangeset> cachedChangesets;
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diff changeset
443 private ChangesetTransformer.Transformation transform;
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diff changeset
444 private Nodeid changesetRevision;
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diff changeset
445 private Pair<Nodeid,Nodeid> parentRevisions;
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parents: 322
diff changeset
446 private List<Nodeid> childRevisions;
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diff changeset
447
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diff changeset
448 public ElementImpl(int total) {
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diff changeset
449 cachedChangesets = new IntMap<HgChangeset>(total);
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diff changeset
450 }
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diff changeset
451
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diff changeset
452 ElementImpl init(HistoryNode n) {
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diff changeset
453 historyNode = n;
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diff changeset
454 parents = null;
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diff changeset
455 children = null;
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diff changeset
456 changesetRevision = null;
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diff changeset
457 parentRevisions = null;
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diff changeset
458 childRevisions = null;
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diff changeset
459 return this;
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parents: 322
diff changeset
460 }
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diff changeset
461
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diff changeset
462 public Nodeid fileRevision() {
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diff changeset
463 return historyNode.fileRevision;
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diff changeset
464 }
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diff changeset
465
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
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parents: 419
diff changeset
466 public HgChangeset changeset() {
328
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diff changeset
467 return get(historyNode.changeset)[0];
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parents: 322
diff changeset
468 }
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diff changeset
469
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
470 public Pair<HgChangeset, HgChangeset> parents() {
328
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diff changeset
471 if (parents != null) {
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diff changeset
472 return parents;
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diff changeset
473 }
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diff changeset
474 HistoryNode p;
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diff changeset
475 final int p1, p2;
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diff changeset
476 if ((p = historyNode.parent1) != null) {
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parents: 322
diff changeset
477 p1 = p.changeset;
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diff changeset
478 } else {
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diff changeset
479 p1 = -1;
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diff changeset
480 }
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diff changeset
481 if ((p = historyNode.parent2) != null) {
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diff changeset
482 p2 = p.changeset;
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diff changeset
483 } else {
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diff changeset
484 p2 = -1;
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diff changeset
485 }
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diff changeset
486 HgChangeset[] r = get(p1, p2);
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diff changeset
487 return parents = new Pair<HgChangeset, HgChangeset>(r[0], r[1]);
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diff changeset
488 }
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diff changeset
489
423
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parents: 419
diff changeset
490 public Collection<HgChangeset> children() {
328
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diff changeset
491 if (children != null) {
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diff changeset
492 return children;
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diff changeset
493 }
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diff changeset
494 if (historyNode.children == null) {
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diff changeset
495 children = Collections.emptyList();
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496 } else {
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497 int[] childrentChangesetNumbers = new int[historyNode.children.size()];
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diff changeset
498 int j = 0;
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diff changeset
499 for (HistoryNode hn : historyNode.children) {
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diff changeset
500 childrentChangesetNumbers[j++] = hn.changeset;
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501 }
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diff changeset
502 children = Arrays.asList(get(childrentChangesetNumbers));
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diff changeset
503 }
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diff changeset
504 return children;
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diff changeset
505 }
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506
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diff changeset
507 void populate(HgChangeset cs) {
403
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diff changeset
508 cachedChangesets.put(cs.getRevisionIndex(), cs);
328
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509 }
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diff changeset
510
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
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diff changeset
511 private HgChangeset[] get(int... changelogRevisionIndex) {
403
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diff changeset
512 HgChangeset[] rv = new HgChangeset[changelogRevisionIndex.length];
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diff changeset
513 IntVector misses = new IntVector(changelogRevisionIndex.length, -1);
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diff changeset
514 for (int i = 0; i < changelogRevisionIndex.length; i++) {
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diff changeset
515 if (changelogRevisionIndex[i] == -1) {
328
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diff changeset
516 rv[i] = null;
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diff changeset
517 continue;
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diff changeset
518 }
403
2747b0723867 FIXMEs: work on exceptions and javadoc
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diff changeset
519 HgChangeset cached = cachedChangesets.get(changelogRevisionIndex[i]);
328
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diff changeset
520 if (cached != null) {
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diff changeset
521 rv[i] = cached;
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diff changeset
522 } else {
403
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diff changeset
523 misses.add(changelogRevisionIndex[i]);
328
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diff changeset
524 }
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diff changeset
525 }
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diff changeset
526 if (misses.size() > 0) {
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diff changeset
527 final int[] changesets2read = misses.toArray();
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diff changeset
528 initTransform();
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diff changeset
529 repo.getChangelog().range(this, changesets2read);
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diff changeset
530 for (int changeset2read : changesets2read) {
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diff changeset
531 HgChangeset cs = cachedChangesets.get(changeset2read);
403
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
532 if (cs == null) {
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
533 HgInvalidStateException t = new HgInvalidStateException(String.format("Can't get changeset for revision %d", changeset2read));
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
534 throw t.setRevisionIndex(changeset2read);
403
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diff changeset
535 }
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parents: 402
diff changeset
536 // HgChangelog.range may reorder changesets according to their order in the changelog
2747b0723867 FIXMEs: work on exceptions and javadoc
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parents: 402
diff changeset
537 // thus need to find original index
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
538 boolean sanity = false;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
539 for (int i = 0; i < changelogRevisionIndex.length; i++) {
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
540 if (changelogRevisionIndex[i] == cs.getRevisionIndex()) {
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
541 rv[i] = cs;
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
542 sanity = true;
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
543 break;
328
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parents: 322
diff changeset
544 }
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
545 }
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
546 if (!sanity) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
547 HgInternals.getContext(repo).getLog().error(getClass(), "Index of revision %d:%s doesn't match any of requested", cs.getRevisionIndex(), cs.getNodeid().shortNotation());
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
548 }
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
549 assert sanity;
328
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diff changeset
550 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
551 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
552 return rv;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
553 }
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parents: 322
diff changeset
554
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diff changeset
555 // init only when needed
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
556 void initTransform() throws HgRuntimeException {
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
557 if (transform == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
558 transform = new ChangesetTransformer.Transformation(new HgStatusCollector(repo)/*XXX try to reuse from context?*/, getParentHelper(false));
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parents: 322
diff changeset
559 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
560 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
561
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
562 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
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diff changeset
563 HgChangeset cs = transform.handle(revisionNumber, nodeid, cset);
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parents: 322
diff changeset
564 populate(cs.clone());
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
565 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
566
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
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parents: 419
diff changeset
567 public Nodeid changesetRevision() {
328
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parents: 322
diff changeset
568 if (changesetRevision == null) {
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parents: 322
diff changeset
569 changesetRevision = getRevision(historyNode.changeset);
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parents: 322
diff changeset
570 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
571 return changesetRevision;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
572 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
573
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
574 public Pair<Nodeid, Nodeid> parentRevisions() {
328
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parents: 322
diff changeset
575 if (parentRevisions == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
576 HistoryNode p;
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parents: 322
diff changeset
577 final Nodeid p1, p2;
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parents: 322
diff changeset
578 if ((p = historyNode.parent1) != null) {
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parents: 322
diff changeset
579 p1 = getRevision(p.changeset);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
580 } else {
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parents: 322
diff changeset
581 p1 = Nodeid.NULL;;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
582 }
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parents: 322
diff changeset
583 if ((p = historyNode.parent2) != null) {
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parents: 322
diff changeset
584 p2 = getRevision(p.changeset);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
585 } else {
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parents: 322
diff changeset
586 p2 = Nodeid.NULL;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
587 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
588 parentRevisions = new Pair<Nodeid, Nodeid>(p1, p2);
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parents: 322
diff changeset
589 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
590 return parentRevisions;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
591 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
592
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
593 public Collection<Nodeid> childRevisions() {
328
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parents: 322
diff changeset
594 if (childRevisions != null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
595 return childRevisions;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
596 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
597 if (historyNode.children == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
598 childRevisions = Collections.emptyList();
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
599 } else {
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parents: 322
diff changeset
600 ArrayList<Nodeid> rv = new ArrayList<Nodeid>(historyNode.children.size());
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
601 for (HistoryNode hn : historyNode.children) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
602 rv.add(getRevision(hn.changeset));
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
603 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
604 childRevisions = Collections.unmodifiableList(rv);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
605 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
606 return childRevisions;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
607 }
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 // reading nodeid involves reading index only, guess, can afford not to optimize multiple reads
423
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 419
diff changeset
610 private Nodeid getRevision(int changelogRevisionNumber) {
9c9c442b5f2e Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
611 // TODO post-1.0 pipe through pool
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612 HgChangeset cs = cachedChangesets.get(changelogRevisionNumber);
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613 if (cs != null) {
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614 return cs.getNodeid();
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615 } else {
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2747b0723867 FIXMEs: work on exceptions and javadoc
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616 return repo.getChangelog().getRevision(changelogRevisionNumber);
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617 }
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618 }
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619 }
64
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
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620 }