Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgStatusCommand.java @ 367:2fadf8695f8a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use 'revision index' instead of the vague 'local revision number' concept in the API
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 16 Dec 2011 15:37:27 +0100
parents 150500515714
children 8107b95f4280
rev   line source
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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a3a2e5deb320 Updated contact address to support@hg4j.com
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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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2e395db595e2 Moved HgStatus to toplevel
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19 import static org.tmatesoft.hg.core.HgStatus.Kind.*;
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20 import static org.tmatesoft.hg.repo.HgInternals.wrongRevisionIndex;
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21 import static org.tmatesoft.hg.repo.HgRepository.*;
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22
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23 import java.io.IOException;
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24 import java.util.ConcurrentModificationException;
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25 import java.util.concurrent.CancellationException;
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26
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27 import org.tmatesoft.hg.internal.ChangelogHelper;
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28 import org.tmatesoft.hg.repo.HgRepository;
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29 import org.tmatesoft.hg.repo.HgStatusCollector;
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30 import org.tmatesoft.hg.repo.HgStatusInspector;
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31 import org.tmatesoft.hg.repo.HgWorkingCopyStatusCollector;
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32 import org.tmatesoft.hg.util.Path;
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33 import org.tmatesoft.hg.util.Status;
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34
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35 /**
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36 * Command to obtain file status information, 'hg status' counterpart.
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37 *
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38 * @author Artem Tikhomirov
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39 * @author TMate Software Ltd.
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40 */
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41 public class HgStatusCommand extends HgAbstractCommand<HgStatusCommand> {
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42 private final HgRepository repo;
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43
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44 private int startRevision = TIP;
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45 private int endRevision = WORKING_COPY;
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46 private Path.Matcher scope;
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47
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48 private final Mediator mediator = new Mediator();
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49
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50 public HgStatusCommand(HgRepository hgRepo) {
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51 repo = hgRepo;
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52 defaults();
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53 }
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55 public HgStatusCommand defaults() {
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56 final Mediator m = mediator;
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57 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true;
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58 m.needCopies = m.needClean = m.needIgnored = false;
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59 return this;
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60 }
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61 public HgStatusCommand all() {
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62 final Mediator m = mediator;
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63 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true;
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64 m.needCopies = m.needClean = m.needIgnored = true;
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65 return this;
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66 }
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69 public HgStatusCommand modified(boolean include) {
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70 mediator.needModified = include;
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71 return this;
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72 }
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73 public HgStatusCommand added(boolean include) {
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74 mediator.needAdded = include;
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75 return this;
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76 }
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77 public HgStatusCommand removed(boolean include) {
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78 mediator.needRemoved = include;
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79 return this;
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80 }
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81 public HgStatusCommand deleted(boolean include) {
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82 mediator.needMissing = include;
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83 return this;
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84 }
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85 public HgStatusCommand unknown(boolean include) {
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86 mediator.needUnknown = include;
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87 return this;
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88 }
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89 public HgStatusCommand clean(boolean include) {
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90 mediator.needClean = include;
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91 return this;
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92 }
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93 public HgStatusCommand ignored(boolean include) {
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94 mediator.needIgnored = include;
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95 return this;
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96 }
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97
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98 /**
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99 * If set, either base:revision or base:workingdir
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100 * to unset, pass {@link HgRepository#TIP} or {@link HgRepository#BAD_REVISION}
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101 * @param changesetRevisionIndex - local index of a changeset to base status from
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102 * @return <code>this</code> for convenience
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103 * @throws IllegalArgumentException when revision is negative or {@link HgRepository#WORKING_COPY}
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104 */
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105 public HgStatusCommand base(int changesetRevisionIndex) {
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106 if (changesetRevisionIndex == WORKING_COPY || wrongRevisionIndex(changesetRevisionIndex)) {
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107 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
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108 }
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109 if (changesetRevisionIndex == BAD_REVISION) {
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110 changesetRevisionIndex = TIP;
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111 }
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112 startRevision = changesetRevisionIndex;
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113 return this;
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114 }
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116 /**
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117 * Revision without base == --change
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118 * Pass {@link HgRepository#WORKING_COPY} or {@link HgRepository#BAD_REVISION} to reset
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119 * @param changesetRevisionIndex - non-negative local revision number, or any of {@link HgRepository#BAD_REVISION}, {@link HgRepository#WORKING_COPY} or {@link HgRepository#TIP}
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120 * @return <code>this</code> for convenience
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121 * @throws IllegalArgumentException if local revision number doesn't specify legitimate revision.
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122 */
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123 public HgStatusCommand revision(int changesetRevisionIndex) {
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124 if (changesetRevisionIndex == BAD_REVISION) {
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125 changesetRevisionIndex = WORKING_COPY;
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126 }
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127 if (wrongRevisionIndex(changesetRevisionIndex)) {
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128 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
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129 }
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130 endRevision = changesetRevisionIndex;
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131 return this;
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132 }
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133
143
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134 /**
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135 * Shorthand for {@link #base(int) cmd.base(BAD_REVISION)}{@link #change(int) .revision(revision)}
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136 *
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137 * @param revision compare given revision against its parent
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138 * @return <code>this</code> for convenience
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139 */
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140 public HgStatusCommand change(int revision) {
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141 base(BAD_REVISION);
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142 return revision(revision);
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143 }
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144
148
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145 /**
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146 * Limit status operation to certain sub-tree.
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147 *
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148 * @param pathMatcher - matcher to use, pass <code>null/<code> to reset
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149 * @return <code>this</code> for convenience
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150 */
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151 public HgStatusCommand match(Path.Matcher scopeMatcher) {
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152 scope = scopeMatcher;
123
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153 return this;
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154 }
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155
131
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156 public HgStatusCommand subrepo(boolean visit) {
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157 throw HgRepository.notImplemented();
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158 }
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159
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160 /**
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161 * Perform status operation according to parameters set.
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162 *
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163 * @param handler callback to get status information
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164 * @throws IOException if there are (further unspecified) errors while walking working copy
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165 * @throws IllegalArgumentException if handler is <code>null</code>
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166 * @throws ConcurrentModificationException if this command already runs (i.e. being used from another thread)
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167 */
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168 public void execute(HgStatusHandler statusHandler) throws CancellationException, HgException, IOException {
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169 if (statusHandler == null) {
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170 throw new IllegalArgumentException();
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171 }
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172 if (mediator.busy()) {
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173 throw new ConcurrentModificationException();
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174 }
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175 HgStatusCollector sc = new HgStatusCollector(repo); // TODO from CommandContext
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176 // PathPool pathHelper = new PathPool(repo.getPathHelper()); // TODO from CommandContext
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177 try {
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178 // XXX if I need a rough estimation (for ProgressMonitor) of number of work units,
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179 // I may use number of files in either rev1 or rev2 manifest edition
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180 mediator.start(statusHandler, new ChangelogHelper(repo, startRevision));
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181 if (endRevision == WORKING_COPY) {
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182 HgWorkingCopyStatusCollector wcsc = scope != null ? HgWorkingCopyStatusCollector.create(repo, scope) : new HgWorkingCopyStatusCollector(repo);
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183 wcsc.setBaseRevisionCollector(sc);
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184 wcsc.walk(startRevision, mediator);
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185 } else {
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186 sc.setScope(scope); // explicitly set, even if null - would be handy once we reuse StatusCollector
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187 if (startRevision == TIP) {
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188 sc.change(endRevision, mediator);
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189 } else {
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190 sc.walk(startRevision, endRevision, mediator);
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191 }
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192 }
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193 } catch (HgCallbackTargetException.Wrap ex) {
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194 // seems too general to catch RuntimeException, i.e.
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195 // unless catch is for very narrow piece of code, it's better not to catch any RTE (which may happen elsewhere, not only in handler)
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196 // XXX Perhaps, need more detailed explanation in handlers that are expected to throw Wrap/RTE (i.e. HgChangesetHandler)
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197 throw new HgCallbackTargetException(ex).setRevisionIndex(endRevision);
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198 } finally {
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199 mediator.done();
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200 }
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201 }
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202
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203 /**
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204 * @deprecated replaced with {@link HgStatusHandler}
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205 */
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206 @Deprecated
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207 public interface Handler extends HgStatusHandler{
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208 void handleStatus(HgStatus s);
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209 }
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210
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211 private class Mediator implements HgStatusInspector {
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212 boolean needModified;
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213 boolean needAdded;
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214 boolean needRemoved;
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215 boolean needUnknown;
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216 boolean needMissing;
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217 boolean needClean;
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218 boolean needIgnored;
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219 boolean needCopies;
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220 HgStatusHandler handler;
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221 private ChangelogHelper logHelper;
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222
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223 Mediator() {
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224 }
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225
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226 public void start(HgStatusHandler h, ChangelogHelper changelogHelper) {
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227 handler = h;
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228 logHelper = changelogHelper;
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229 }
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230
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231 public void done() {
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232 handler = null;
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233 logHelper = null;
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234 }
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235
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236 public boolean busy() {
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237 return handler != null;
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238 }
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239
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240 public void modified(Path fname) {
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241 if (needModified) {
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242 handler.handleStatus(new HgStatus(Modified, fname, logHelper));
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243 }
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244 }
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245 public void added(Path fname) {
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246 if (needAdded) {
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247 handler.handleStatus(new HgStatus(Added, fname, logHelper));
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248 }
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249 }
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250 public void removed(Path fname) {
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251 if (needRemoved) {
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252 handler.handleStatus(new HgStatus(Removed, fname, logHelper));
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253 }
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254 }
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255 public void copied(Path fnameOrigin, Path fnameAdded) {
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256 if (needCopies) {
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257 // FIXME in fact, merged files may report 'copied from' as well, correct status kind thus may differ from Added
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258 handler.handleStatus(new HgStatus(Added, fnameAdded, fnameOrigin, logHelper));
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259 }
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260 }
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261 public void missing(Path fname) {
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262 if (needMissing) {
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263 handler.handleStatus(new HgStatus(Missing, fname, logHelper));
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264 }
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265 }
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266 public void unknown(Path fname) {
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267 if (needUnknown) {
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268 handler.handleStatus(new HgStatus(Unknown, fname, logHelper));
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269 }
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270 }
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271 public void clean(Path fname) {
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272 if (needClean) {
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273 handler.handleStatus(new HgStatus(Clean, fname, logHelper));
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274 }
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275 }
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276 public void ignored(Path fname) {
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277 if (needIgnored) {
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278 handler.handleStatus(new HgStatus(Ignored, fname, logHelper));
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279 }
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280 }
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281
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282 public void invalid(Path fname, Exception ex) {
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283 handler.handleError(fname, new Status(Status.Kind.ERROR, "Failed to get file status", ex));
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284 }
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285 }
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286 }