Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgLogCommand.java @ 495:abfbe81154b5

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Do not use exception when only metadata processing is needed. For hg4j repo, status 0:-1 changed from 500 to 60 ms
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 19 Oct 2012 16:03:21 +0200
parents b3c16d1aede0
children a6435c1a42d0
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 import static org.tmatesoft.hg.util.LogFacility.Severity.Error;
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21
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22 import java.util.ArrayList;
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23 import java.util.Arrays;
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24 import java.util.Calendar;
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25 import java.util.Collection;
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26 import java.util.Collections;
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27 import java.util.ConcurrentModificationException;
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28 import java.util.LinkedList;
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29 import java.util.List;
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30 import java.util.Set;
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31 import java.util.TreeSet;
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32
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33 import org.tmatesoft.hg.internal.IntMap;
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34 import org.tmatesoft.hg.internal.IntVector;
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35 import org.tmatesoft.hg.repo.HgChangelog;
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36 import org.tmatesoft.hg.repo.HgChangelog.RawChangeset;
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37 import org.tmatesoft.hg.repo.HgDataFile;
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38 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
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39 import org.tmatesoft.hg.repo.HgInvalidRevisionException;
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40 import org.tmatesoft.hg.repo.HgInvalidStateException;
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41 import org.tmatesoft.hg.repo.HgParentChildMap;
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42 import org.tmatesoft.hg.repo.HgRepository;
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43 import org.tmatesoft.hg.repo.HgRuntimeException;
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44 import org.tmatesoft.hg.repo.HgStatusCollector;
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45 import org.tmatesoft.hg.util.CancelSupport;
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46 import org.tmatesoft.hg.util.CancelledException;
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47 import org.tmatesoft.hg.util.Pair;
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48 import org.tmatesoft.hg.util.Path;
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49 import org.tmatesoft.hg.util.ProgressSupport;
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52 /**
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53 * Access to changelog, 'hg log' command counterpart.
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54 *
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55 * <pre>
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56 * Usage:
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57 * new LogCommand().limit(20).branch("maintenance-2.1").user("me").execute(new MyHandler());
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58 * </pre>
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59 * Not thread-safe (each thread has to use own {@link HgLogCommand} instance).
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60 *
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61 * @author Artem Tikhomirov
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62 * @author TMate Software Ltd.
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63 */
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64 public class HgLogCommand extends HgAbstractCommand<HgLogCommand> implements HgChangelog.Inspector {
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66 private final HgRepository repo;
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67 private Set<String> users;
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68 private Set<String> branches;
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69 private int limit = 0, count = 0;
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70 private int startRev = 0, endRev = TIP;
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71 private Calendar date;
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72 private Path file;
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73 private boolean followHistory; // makes sense only when file != null
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74 private ChangesetTransformer csetTransform;
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75 private HgParentChildMap<HgChangelog> parentHelper;
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76
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77 public HgLogCommand(HgRepository hgRepo) {
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78 repo = hgRepo;
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79 }
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81 /**
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82 * Limit search to specified user. Multiple user names may be specified. Once set, user names can't be
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83 * cleared, use new command instance in such cases.
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84 * @param user - full or partial name of the user, case-insensitive, non-null.
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85 * @return <code>this</code> instance for convenience
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86 * @throws IllegalArgumentException when argument is null
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87 */
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88 public HgLogCommand user(String user) {
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89 if (user == null) {
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90 throw new IllegalArgumentException();
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91 }
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92 if (users == null) {
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93 users = new TreeSet<String>();
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94 }
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95 users.add(user.toLowerCase());
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96 return this;
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97 }
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99 /**
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100 * Limit search to specified branch. Multiple branch specification possible (changeset from any of these
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101 * would be included in result). If unspecified, all branches are considered. There's no way to clean branch selection
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102 * once set, create fresh new command instead.
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103 * @param branch - branch name, case-sensitive, non-null.
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104 * @return <code>this</code> instance for convenience
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105 * @throws IllegalArgumentException when branch argument is null
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106 */
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107 public HgLogCommand branch(String branch) {
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108 if (branch == null) {
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109 throw new IllegalArgumentException();
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110 }
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111 if (branches == null) {
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112 branches = new TreeSet<String>();
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113 }
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114 branches.add(branch);
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115 return this;
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116 }
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117
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118 // limit search to specific date
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119 // multiple?
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120 public HgLogCommand date(Calendar date) {
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121 this.date = date;
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122 // TODO post-1.0 implement
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123 // isSet(field) - false => don't use in detection of 'same date'
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124 throw HgRepository.notImplemented();
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125 }
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126
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127 /**
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128 *
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129 * @param num - number of changeset to produce. Pass 0 to clear the limit.
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130 * @return <code>this</code> instance for convenience
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131 */
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132 public HgLogCommand limit(int num) {
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133 limit = num;
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134 return this;
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135 }
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136
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137 /**
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138 * Limit to specified subset of Changelog, [min(rev1,rev2), max(rev1,rev2)], inclusive.
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139 * Revision may be specified with {@link HgRepository#TIP}
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140 *
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141 * @param rev1 - local index of start changeset revision
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142 * @param rev2 - index of end changeset revision
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143 * @return <code>this</code> instance for convenience
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144 */
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145 public HgLogCommand range(int rev1, int rev2) {
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146 if (rev1 != TIP && rev2 != TIP) {
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147 startRev = rev2 < rev1 ? rev2 : rev1;
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148 endRev = startRev == rev2 ? rev1 : rev2;
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149 } else if (rev1 == TIP && rev2 != TIP) {
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150 startRev = rev2;
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151 endRev = rev1;
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152 } else {
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153 startRev = rev1;
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154 endRev = rev2;
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155 }
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156 return this;
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157 }
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158
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159 /**
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160 * Select specific changeset
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161 *
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162 * @param nid changeset revision
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163 * @return <code>this</code> for convenience
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164 * @throws HgBadArgumentException if failed to find supplied changeset revision
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165 */
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166 public HgLogCommand changeset(Nodeid nid) throws HgBadArgumentException {
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167 // XXX perhaps, shall support multiple (...) arguments and extend #execute to handle not only range, but also set of revisions.
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168 try {
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169 final int csetRevIndex = repo.getChangelog().getRevisionIndex(nid);
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170 return range(csetRevIndex, csetRevIndex);
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171 } catch (HgInvalidRevisionException ex) {
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172 throw new HgBadArgumentException("Can't find revision", ex).setRevision(nid);
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173 }
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174 }
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175
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176 /**
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177 * Visit history of a given file only.
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178 * @param file path relative to repository root. Pass <code>null</code> to reset.
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179 * @param followCopyRename true to report changesets of the original file(-s), if copy/rename ever occured to the file.
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180 */
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181 public HgLogCommand file(Path file, boolean followCopyRename) {
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182 // multiple? Bad idea, would need to include extra method into Handler to tell start of next file
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183 this.file = file;
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184 followHistory = followCopyRename;
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185 return this;
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186 }
142
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187
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188 /**
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189 * Handy analog of {@link #file(Path, boolean)} when clients' paths come from filesystem and need conversion to repository's
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190 */
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191 public HgLogCommand file(String file, boolean followCopyRename) {
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192 return file(Path.create(repo.getToRepoPathHelper().rewrite(file)), followCopyRename);
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193 }
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194
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195 /**
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196 * Similar to {@link #execute(HgChangesetHandler)}, collects and return result as a list.
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197 *
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198 * @see #execute(HgChangesetHandler)
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199 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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200 */
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201 public List<HgChangeset> execute() throws HgException {
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202 CollectHandler collector = new CollectHandler();
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203 try {
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204 execute(collector);
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205 } catch (HgCallbackTargetException ex) {
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206 // see below for CanceledException
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207 HgInvalidStateException t = new HgInvalidStateException("Internal error");
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208 t.initCause(ex);
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209 throw t;
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210 } catch (CancelledException ex) {
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211 // can't happen as long as our CollectHandler doesn't throw any exception
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212 HgInvalidStateException t = new HgInvalidStateException("Internal error");
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213 t.initCause(ex);
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214 throw t;
215
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215 }
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216 return collector.getChanges();
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217 }
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219 /**
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220 * Iterate over range of changesets configured in the command.
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221 *
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222 * @param handler callback to process changesets.
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223 * @throws HgCallbackTargetException propagated exception from the handler
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224 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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225 * @throws CancelledException if execution of the command was cancelled
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226 * @throws IllegalArgumentException when inspector argument is null
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227 * @throws ConcurrentModificationException if this log command instance is already running
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228 */
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229 public void execute(HgChangesetHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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230 if (handler == null) {
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231 throw new IllegalArgumentException();
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232 }
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233 if (csetTransform != null) {
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234 throw new ConcurrentModificationException();
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235 }
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236 final ProgressSupport progressHelper = getProgressSupport(handler);
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237 try {
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238 count = 0;
432
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239 HgParentChildMap<HgChangelog> pw = getParentHelper(file == null); // leave it uninitialized unless we iterate whole repo
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240 // ChangesetTransfrom creates a blank PathPool, and #file(String, boolean) above
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241 // may utilize it as well. CommandContext? How about StatusCollector there as well?
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242 csetTransform = new ChangesetTransformer(repo, handler, pw, progressHelper, getCancelSupport(handler, true));
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243 if (file == null) {
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244 progressHelper.start(endRev - startRev + 1);
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245 repo.getChangelog().range(startRev, endRev, this);
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246 csetTransform.checkFailure();
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247 } else {
215
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248 progressHelper.start(-1/*XXX enum const, or a dedicated method startUnspecified(). How about startAtLeast(int)?*/);
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249 HgDataFile fileNode = repo.getFileNode(file);
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250 if (!fileNode.exists()) {
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251 throw new HgPathNotFoundException(String.format("File %s not found in the repository", file), file);
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252 }
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253 fileNode.history(startRev, endRev, this);
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254 csetTransform.checkFailure();
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255 if (fileNode.isCopy()) {
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256 // even if we do not follow history, report file rename
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257 do {
427
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258 if (handler instanceof HgChangesetHandler.WithCopyHistory) {
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259 HgFileRevision src = new HgFileRevision(repo, fileNode.getCopySourceRevision(), null, fileNode.getCopySourceName());
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260 HgFileRevision dst = new HgFileRevision(repo, fileNode.getRevision(0), null, fileNode.getPath(), src.getPath());
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261 ((HgChangesetHandler.WithCopyHistory) handler).copy(src, dst);
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262 }
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263 if (limit > 0 && count >= limit) {
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264 // if limit reach, follow is useless.
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265 break;
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266 }
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267 if (followHistory) {
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268 fileNode = repo.getFileNode(fileNode.getCopySourceName());
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269 fileNode.history(this);
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270 csetTransform.checkFailure();
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271 }
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272 } while (followHistory && fileNode.isCopy());
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273 }
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274 }
427
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275 } catch (HgRuntimeException ex) {
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276 throw new HgLibraryFailureException(ex);
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277 } finally {
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278 csetTransform = null;
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279 progressHelper.done();
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280 }
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281 }
328
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282
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283 /**
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284 * Tree-wise iteration of a file history, with handy access to parent-child relations between changesets.
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285 *
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286 * @param handler callback to process changesets.
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287 * @throws HgCallbackTargetException propagated exception from the handler
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288 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
380
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289 * @throws CancelledException if execution of the command was cancelled
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290 * @throws IllegalArgumentException if command is not satisfied with its arguments
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291 * @throws ConcurrentModificationException if this log command instance is already running
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292 */
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293 public void execute(HgChangesetTreeHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
328
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294 if (handler == null) {
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295 throw new IllegalArgumentException();
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296 }
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297 if (csetTransform != null) {
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298 throw new ConcurrentModificationException();
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299 }
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300 if (file == null) {
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301 throw new IllegalArgumentException("History tree is supported for files only (at least now), please specify file");
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302 }
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303 if (followHistory) {
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304 throw new UnsupportedOperationException("Can't follow file history when building tree (yet?)");
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305 }
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306 class TreeBuildInspector implements HgChangelog.ParentInspector, HgChangelog.RevisionInspector {
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307 HistoryNode[] completeHistory;
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308 int[] commitRevisions;
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309
328
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310 public void next(int revisionNumber, Nodeid revision, int linkedRevision) {
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311 commitRevisions[revisionNumber] = linkedRevision;
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312 }
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313
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314 public void next(int revisionNumber, Nodeid revision, int parent1, int parent2, Nodeid nidParent1, Nodeid nidParent2) {
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315 HistoryNode p1 = null, p2 = null;
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316 if (parent1 != -1) {
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317 p1 = completeHistory[parent1];
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318 }
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319 if (parent2!= -1) {
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320 p2 = completeHistory[parent2];
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321 }
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322 completeHistory[revisionNumber] = new HistoryNode(commitRevisions[revisionNumber], revision, p1, p2);
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323 }
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324
366
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325 HistoryNode[] go(HgDataFile fileNode) throws HgInvalidControlFileException {
328
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326 completeHistory = new HistoryNode[fileNode.getRevisionCount()];
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327 commitRevisions = new int[completeHistory.length];
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328 fileNode.indexWalk(0, TIP, this);
328
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329 return completeHistory;
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330 }
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331 };
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332 final ProgressSupport progressHelper = getProgressSupport(handler);
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333 progressHelper.start(4);
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334 final CancelSupport cancelHelper = getCancelSupport(handler, true);
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335 cancelHelper.checkCancelled();
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336 HgDataFile fileNode = repo.getFileNode(file);
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337 // build tree of nodes according to parents in file's revlog
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338 final TreeBuildInspector treeBuildInspector = new TreeBuildInspector();
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339 final HistoryNode[] completeHistory = treeBuildInspector.go(fileNode);
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340 progressHelper.worked(1);
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341 cancelHelper.checkCancelled();
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342 ElementImpl ei = new ElementImpl(treeBuildInspector.commitRevisions.length);
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343 final ProgressSupport ph2;
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344 if (treeBuildInspector.commitRevisions.length < 100 /*XXX is it really worth it? */) {
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345 ei.initTransform();
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346 repo.getChangelog().range(ei, treeBuildInspector.commitRevisions);
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347 progressHelper.worked(1);
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348 ph2 = new ProgressSupport.Sub(progressHelper, 2);
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349 } else {
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350 ph2 = new ProgressSupport.Sub(progressHelper, 3);
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351 }
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
352 ph2.start(completeHistory.length);
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parents: 419
diff changeset
353 // XXX shall sort completeHistory according to changeset numbers?
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parents: 419
diff changeset
354 for (int i = 0; i < completeHistory.length; i++ ) {
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
355 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
356 handler.treeElement(ei.init(n));
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
357 ph2.worked(1);
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parents: 419
diff changeset
358 cancelHelper.checkCancelled();
328
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diff changeset
359 }
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diff changeset
360 progressHelper.done();
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361 }
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362
64
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363 //
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diff changeset
364
154
ba2bf656f00f Changeset => RawChangeset
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diff changeset
365 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
64
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366 if (limit > 0 && count >= limit) {
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367 return;
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parents:
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368 }
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diff changeset
369 if (branches != null && !branches.contains(cset.branch())) {
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diff changeset
370 return;
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parents:
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371 }
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parents:
diff changeset
372 if (users != null) {
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diff changeset
373 String csetUser = cset.user().toLowerCase();
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374 boolean found = false;
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375 for (String u : users) {
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diff changeset
376 if (csetUser.indexOf(u) != -1) {
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diff changeset
377 found = true;
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diff changeset
378 break;
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379 }
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parents:
diff changeset
380 }
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diff changeset
381 if (!found) {
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parents:
diff changeset
382 return;
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parents:
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383 }
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parents:
diff changeset
384 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
385 if (date != null) {
418
528b6780a8bd A bit of FIXME cleanup (mostly degraded to TODO post 1.0), comments and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 415
diff changeset
386 // TODO post-1.0 implement date support for log
64
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diff changeset
387 }
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parents:
diff changeset
388 count++;
193
37f3d4a596e4 Use common low to hi-level changeset api transformer
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
389 csetTransform.next(revisionNumber, nodeid, cset);
64
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diff changeset
390 }
195
c9b305df0b89 Optimization: use ParentWalker to get changeset's parents, if possible. Do not keep duplicating nodeids and strings in manifest revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
391
432
1fc0da631200 Revlog.ParentWalker helper class got promoted as TLC, renamed to HgParentChildMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 431
diff changeset
392 private HgParentChildMap<HgChangelog> getParentHelper(boolean create) throws HgInvalidControlFileException {
328
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diff changeset
393 if (parentHelper == null && create) {
432
1fc0da631200 Revlog.ParentWalker helper class got promoted as TLC, renamed to HgParentChildMap
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parents: 431
diff changeset
394 parentHelper = new HgParentChildMap<HgChangelog>(repo.getChangelog());
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
395 parentHelper.init();
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parents: 193
diff changeset
396 }
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diff changeset
397 return parentHelper;
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diff changeset
398 }
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parents: 193
diff changeset
399
64
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parents:
diff changeset
400
205
ffc5f6d59f7e HgLogCommand.Handler is used in few places, pull up to top-level class, HgChangesetHandler
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 195
diff changeset
401 public static class CollectHandler implements HgChangesetHandler {
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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diff changeset
402 private final List<HgChangeset> result = new LinkedList<HgChangeset>();
64
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parents:
diff changeset
403
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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diff changeset
404 public List<HgChangeset> getChanges() {
64
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diff changeset
405 return Collections.unmodifiableList(result);
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parents:
diff changeset
406 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
407
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
408 public void cset(HgChangeset changeset) {
64
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
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parents:
diff changeset
409 result.add(changeset.clone());
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
410 }
19e9e220bf68 Convenient commands constitute hi-level API. org.tmatesoft namespace, GPL2 statement
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
411 }
328
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diff changeset
412
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diff changeset
413 private static class HistoryNode {
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diff changeset
414 final int changeset;
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diff changeset
415 final Nodeid fileRevision;
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diff changeset
416 final HistoryNode parent1, parent2;
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diff changeset
417 List<HistoryNode> children;
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diff changeset
418
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diff changeset
419 HistoryNode(int cs, Nodeid revision, HistoryNode p1, HistoryNode p2) {
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diff changeset
420 changeset = cs;
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diff changeset
421 fileRevision = revision;
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diff changeset
422 parent1 = p1;
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diff changeset
423 parent2 = p2;
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diff changeset
424 if (p1 != null) {
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parents: 322
diff changeset
425 p1.addChild(this);
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parents: 322
diff changeset
426 }
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parents: 322
diff changeset
427 if (p2 != null) {
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parents: 322
diff changeset
428 p2.addChild(this);
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parents: 322
diff changeset
429 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
430 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
431
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
432 void addChild(HistoryNode child) {
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parents: 322
diff changeset
433 if (children == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
434 children = new ArrayList<HistoryNode>(2);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
435 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
436 children.add(child);
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
437 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
438 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
439
a674b8590362 Move file tree history to upper API level
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diff changeset
440 private class ElementImpl implements HgChangesetTreeHandler.TreeElement, HgChangelog.Inspector {
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diff changeset
441 private HistoryNode historyNode;
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parents: 322
diff changeset
442 private Pair<HgChangeset, HgChangeset> parents;
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diff changeset
443 private List<HgChangeset> children;
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diff changeset
444 private IntMap<HgChangeset> cachedChangesets;
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parents: 322
diff changeset
445 private ChangesetTransformer.Transformation transform;
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parents: 322
diff changeset
446 private Nodeid changesetRevision;
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parents: 322
diff changeset
447 private Pair<Nodeid,Nodeid> parentRevisions;
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parents: 322
diff changeset
448 private List<Nodeid> childRevisions;
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parents: 322
diff changeset
449
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diff changeset
450 public ElementImpl(int total) {
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diff changeset
451 cachedChangesets = new IntMap<HgChangeset>(total);
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parents: 322
diff changeset
452 }
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parents: 322
diff changeset
453
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diff changeset
454 ElementImpl init(HistoryNode n) {
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diff changeset
455 historyNode = n;
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diff changeset
456 parents = null;
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diff changeset
457 children = null;
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parents: 322
diff changeset
458 changesetRevision = null;
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parents: 322
diff changeset
459 parentRevisions = null;
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parents: 322
diff changeset
460 childRevisions = null;
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parents: 322
diff changeset
461 return this;
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parents: 322
diff changeset
462 }
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diff changeset
463
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diff changeset
464 public Nodeid fileRevision() {
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diff changeset
465 return historyNode.fileRevision;
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parents: 322
diff changeset
466 }
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parents: 322
diff changeset
467
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
468 public HgChangeset changeset() {
328
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diff changeset
469 return get(historyNode.changeset)[0];
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parents: 322
diff changeset
470 }
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parents: 322
diff changeset
471
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
472 public Pair<HgChangeset, HgChangeset> parents() {
328
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diff changeset
473 if (parents != null) {
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diff changeset
474 return parents;
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parents: 322
diff changeset
475 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
476 HistoryNode p;
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diff changeset
477 final int p1, p2;
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diff changeset
478 if ((p = historyNode.parent1) != null) {
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parents: 322
diff changeset
479 p1 = p.changeset;
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parents: 322
diff changeset
480 } else {
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parents: 322
diff changeset
481 p1 = -1;
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parents: 322
diff changeset
482 }
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parents: 322
diff changeset
483 if ((p = historyNode.parent2) != null) {
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parents: 322
diff changeset
484 p2 = p.changeset;
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parents: 322
diff changeset
485 } else {
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parents: 322
diff changeset
486 p2 = -1;
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parents: 322
diff changeset
487 }
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diff changeset
488 HgChangeset[] r = get(p1, p2);
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diff changeset
489 return parents = new Pair<HgChangeset, HgChangeset>(r[0], r[1]);
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parents: 322
diff changeset
490 }
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parents: 322
diff changeset
491
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
492 public Collection<HgChangeset> children() {
328
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diff changeset
493 if (children != null) {
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diff changeset
494 return children;
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parents: 322
diff changeset
495 }
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parents: 322
diff changeset
496 if (historyNode.children == null) {
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diff changeset
497 children = Collections.emptyList();
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diff changeset
498 } else {
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diff changeset
499 int[] childrentChangesetNumbers = new int[historyNode.children.size()];
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diff changeset
500 int j = 0;
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diff changeset
501 for (HistoryNode hn : historyNode.children) {
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diff changeset
502 childrentChangesetNumbers[j++] = hn.changeset;
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diff changeset
503 }
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diff changeset
504 children = Arrays.asList(get(childrentChangesetNumbers));
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parents: 322
diff changeset
505 }
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diff changeset
506 return children;
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parents: 322
diff changeset
507 }
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parents: 322
diff changeset
508
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diff changeset
509 void populate(HgChangeset cs) {
403
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parents: 402
diff changeset
510 cachedChangesets.put(cs.getRevisionIndex(), cs);
328
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parents: 322
diff changeset
511 }
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parents: 322
diff changeset
512
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
513 private HgChangeset[] get(int... changelogRevisionIndex) {
403
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parents: 402
diff changeset
514 HgChangeset[] rv = new HgChangeset[changelogRevisionIndex.length];
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
515 IntVector misses = new IntVector(changelogRevisionIndex.length, -1);
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
516 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
517 if (changelogRevisionIndex[i] == -1) {
328
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parents: 322
diff changeset
518 rv[i] = null;
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diff changeset
519 continue;
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parents: 322
diff changeset
520 }
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
521 HgChangeset cached = cachedChangesets.get(changelogRevisionIndex[i]);
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
522 if (cached != null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
523 rv[i] = cached;
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parents: 322
diff changeset
524 } else {
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
525 misses.add(changelogRevisionIndex[i]);
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
526 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
527 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
528 if (misses.size() > 0) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
529 final int[] changesets2read = misses.toArray();
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
530 initTransform();
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
531 repo.getChangelog().range(this, changesets2read);
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parents: 322
diff changeset
532 for (int changeset2read : changesets2read) {
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diff changeset
533 HgChangeset cs = cachedChangesets.get(changeset2read);
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
534 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
535 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
536 throw t.setRevisionIndex(changeset2read);
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
537 }
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
538 // HgChangelog.range may reorder changesets according to their order in the changelog
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
539 // thus need to find original index
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
540 boolean sanity = false;
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
541 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
542 if (changelogRevisionIndex[i] == cs.getRevisionIndex()) {
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
543 rv[i] = cs;
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
544 sanity = true;
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
545 break;
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
546 }
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
547 }
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
548 if (!sanity) {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 457
diff changeset
549 repo.getSessionContext().getLog().dump(getClass(), Error, "Index of revision %d:%s doesn't match any of requested", cs.getRevisionIndex(), cs.getNodeid().shortNotation());
403
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
550 }
2747b0723867 FIXMEs: work on exceptions and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 402
diff changeset
551 assert sanity;
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
552 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
553 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
554 return rv;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
555 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
556
a674b8590362 Move file tree history to upper API level
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parents: 322
diff changeset
557 // 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
558 void initTransform() throws HgRuntimeException {
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
559 if (transform == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
560 transform = new ChangesetTransformer.Transformation(new HgStatusCollector(repo)/*XXX try to reuse from context?*/, getParentHelper(false));
a674b8590362 Move file tree history to upper API level
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parents: 322
diff changeset
561 }
a674b8590362 Move file tree history to upper API level
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
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
564 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
565 HgChangeset cs = transform.handle(revisionNumber, nodeid, cset);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
566 populate(cs.clone());
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
567 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
568
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
569 public Nodeid changesetRevision() {
328
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parents: 322
diff changeset
570 if (changesetRevision == null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
571 changesetRevision = getRevision(historyNode.changeset);
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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 return changesetRevision;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
574 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
575
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
576 public Pair<Nodeid, Nodeid> parentRevisions() {
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
577 if (parentRevisions == null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
578 HistoryNode p;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
579 final Nodeid p1, p2;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
580 if ((p = historyNode.parent1) != null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
581 p1 = getRevision(p.changeset);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
582 } else {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
583 p1 = Nodeid.NULL;;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
584 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
585 if ((p = historyNode.parent2) != null) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
586 p2 = getRevision(p.changeset);
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
587 } else {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
588 p2 = Nodeid.NULL;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
589 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
590 parentRevisions = new Pair<Nodeid, Nodeid>(p1, p2);
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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 return parentRevisions;
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
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
595 public Collection<Nodeid> childRevisions() {
328
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
596 if (childRevisions != null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
597 return childRevisions;
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
598 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
599 if (historyNode.children == null) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
600 childRevisions = Collections.emptyList();
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
601 } else {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
602 ArrayList<Nodeid> rv = new ArrayList<Nodeid>(historyNode.children.size());
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
603 for (HistoryNode hn : historyNode.children) {
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
604 rv.add(getRevision(hn.changeset));
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
605 }
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
606 childRevisions = Collections.unmodifiableList(rv);
a674b8590362 Move file tree history to upper API level
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 return childRevisions;
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
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 322
diff changeset
611 // reading nodeid involves reading index only, guess, can afford not to optimize multiple reads
423
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612 private Nodeid getRevision(int changelogRevisionNumber) {
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613 // TODO post-1.0 pipe through pool
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614 HgChangeset cs = cachedChangesets.get(changelogRevisionNumber);
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615 if (cs != null) {
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616 return cs.getNodeid();
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617 } else {
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618 return repo.getChangelog().getRevision(changelogRevisionNumber);
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619 }
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620 }
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621 }
64
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622 }