Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgStatusCommand.java @ 619:868b2ffdcd5c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Close FIS, not FileChannel, to clear both references to FileDescriptor right away
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 17 May 2013 22:04:23 +0200
parents 90df078d6418
children 98ff1fb49abe
rev   line source
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1 /*
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2 * 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.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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26 import org.tmatesoft.hg.internal.AdapterPlug;
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27 import org.tmatesoft.hg.internal.ChangelogHelper;
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28 import org.tmatesoft.hg.internal.Internals;
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29 import org.tmatesoft.hg.repo.HgRepository;
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30 import org.tmatesoft.hg.repo.HgRuntimeException;
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31 import org.tmatesoft.hg.repo.HgStatusCollector;
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32 import org.tmatesoft.hg.repo.HgStatusInspector;
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33 import org.tmatesoft.hg.repo.HgWorkingCopyStatusCollector;
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34 import org.tmatesoft.hg.util.Adaptable;
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35 import org.tmatesoft.hg.util.CancelSupport;
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36 import org.tmatesoft.hg.util.CancelledException;
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37 import org.tmatesoft.hg.util.Path;
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38 import org.tmatesoft.hg.util.Outcome;
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40 /**
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41 * Command to obtain file status information, 'hg status' counterpart.
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42 *
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43 * @author Artem Tikhomirov
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44 * @author TMate Software Ltd.
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45 */
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46 public class HgStatusCommand extends HgAbstractCommand<HgStatusCommand> {
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47 private final HgRepository repo;
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49 private int startRevision = TIP;
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50 private int endRevision = WORKING_COPY;
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51 private Path.Matcher scope;
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53 private final Mediator mediator = new Mediator();
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54
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55 public HgStatusCommand(HgRepository hgRepo) {
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56 repo = hgRepo;
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57 defaults();
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58 }
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59
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60 public HgStatusCommand defaults() {
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61 final Mediator m = mediator;
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62 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true;
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63 m.needCopies = m.needClean = m.needIgnored = false;
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64 return this;
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65 }
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66 public HgStatusCommand all() {
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67 final Mediator m = mediator;
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68 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true;
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69 m.needCopies = m.needClean = m.needIgnored = true;
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70 return this;
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71 }
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74 public HgStatusCommand modified(boolean include) {
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75 mediator.needModified = include;
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76 return this;
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77 }
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78 public HgStatusCommand added(boolean include) {
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79 mediator.needAdded = include;
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80 return this;
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81 }
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82 public HgStatusCommand removed(boolean include) {
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83 mediator.needRemoved = include;
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84 return this;
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85 }
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86 public HgStatusCommand deleted(boolean include) {
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87 mediator.needMissing = include;
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88 return this;
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89 }
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90 public HgStatusCommand unknown(boolean include) {
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91 mediator.needUnknown = include;
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92 return this;
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93 }
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94 public HgStatusCommand clean(boolean include) {
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95 mediator.needClean = include;
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96 return this;
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97 }
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98 public HgStatusCommand ignored(boolean include) {
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99 mediator.needIgnored = include;
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100 return this;
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101 }
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102
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103 /**
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104 * If set, either base:revision or base:workingdir
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105 * to unset, pass {@link HgRepository#TIP} or {@link HgRepository#BAD_REVISION}
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106 * @param changesetRevisionIndex - local index of a changeset to base status from
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107 * @return <code>this</code> for convenience
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108 * @throws IllegalArgumentException when revision is negative or {@link HgRepository#WORKING_COPY}
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109 */
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110 public HgStatusCommand base(int changesetRevisionIndex) {
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111 if (changesetRevisionIndex == WORKING_COPY || wrongRevisionIndex(changesetRevisionIndex)) {
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112 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
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113 }
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114 if (changesetRevisionIndex == BAD_REVISION) {
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115 changesetRevisionIndex = TIP;
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116 }
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117 startRevision = changesetRevisionIndex;
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118 return this;
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119 }
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120
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121 /**
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122 * Revision without base == --change
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123 * Pass {@link HgRepository#WORKING_COPY} or {@link HgRepository#BAD_REVISION} to reset
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124 * @param changesetRevisionIndex - non-negative changeset revision local index, or any of {@link HgRepository#BAD_REVISION}, {@link HgRepository#WORKING_COPY} or {@link HgRepository#TIP}
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125 * @return <code>this</code> for convenience
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126 * @throws IllegalArgumentException if revision index doesn't specify legitimate revision.
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127 */
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128 public HgStatusCommand revision(int changesetRevisionIndex) {
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129 if (changesetRevisionIndex == BAD_REVISION) {
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130 changesetRevisionIndex = WORKING_COPY;
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131 }
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132 if (wrongRevisionIndex(changesetRevisionIndex)) {
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133 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
143
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134 }
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135 endRevision = changesetRevisionIndex;
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136 return this;
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137 }
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138
143
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139 /**
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140 * Shorthand for {@link #base(int) cmd.base(BAD_REVISION)}{@link #change(int) .revision(revision)}
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141 *
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142 * @param changesetRevisionIndex compare given revision against its parent
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143 * @return <code>this</code> for convenience
143
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144 */
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145 public HgStatusCommand change(int changesetRevisionIndex) {
143
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146 base(BAD_REVISION);
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147 return revision(changesetRevisionIndex);
143
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148 }
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149
148
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150 /**
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151 * Limit status operation to certain sub-tree.
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152 *
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153 * @param scopeMatcher - matcher to use, pass <code>null/<code> to reset
148
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154 * @return <code>this</code> for convenience
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155 */
229
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156 public HgStatusCommand match(Path.Matcher scopeMatcher) {
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157 scope = scopeMatcher;
123
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158 return this;
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159 }
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160
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161 public HgStatusCommand subrepo(boolean visit) {
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162 throw Internals.notImplemented();
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163 }
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164
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165 /**
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166 * Perform status operation according to parameters set.
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167 *
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168 * @param statusHandler callback to get status information
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169 * @throws HgCallbackTargetException propagated exception from the handler
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170 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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171 * @throws IOException if there are (further unspecified) errors while walking working copy
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172 * @throws CancelledException if execution of the command was cancelled
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173 * @throws IllegalArgumentException if handler is <code>null</code>
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174 * @throws ConcurrentModificationException if this command already runs (i.e. being used from another thread)
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175 */
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176 public void execute(HgStatusHandler statusHandler) throws HgCallbackTargetException, HgException, IOException, CancelledException {
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177 if (statusHandler == null) {
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178 throw new IllegalArgumentException();
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179 }
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180 if (mediator.busy()) {
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181 throw new ConcurrentModificationException();
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182 }
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183 HgStatusCollector sc = new HgStatusCollector(repo); // TODO from CommandContext
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184 // PathPool pathHelper = new PathPool(repo.getPathHelper()); // TODO from CommandContext
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185 try {
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186 // XXX if I need a rough estimation (for ProgressMonitor) of number of work units,
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187 // I may use number of files in either rev1 or rev2 manifest edition
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188 mediator.start(statusHandler, getCancelSupport(statusHandler, true), new ChangelogHelper(repo, startRevision));
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189 if (endRevision == WORKING_COPY) {
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190 HgWorkingCopyStatusCollector wcsc = scope != null ? HgWorkingCopyStatusCollector.create(repo, scope) : new HgWorkingCopyStatusCollector(repo);
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191 wcsc.setBaseRevisionCollector(sc);
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192 wcsc.walk(startRevision, mediator);
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193 } else {
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194 sc.setScope(scope); // explicitly set, even if null - would be handy once we reuse StatusCollector
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195 if (startRevision == TIP) {
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196 sc.change(endRevision, mediator);
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197 } else {
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198 sc.walk(startRevision, endRevision, mediator);
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199 }
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200 }
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201 mediator.checkFailure();
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202 } catch (HgRuntimeException ex) {
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203 throw new HgLibraryFailureException(ex);
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204 } finally {
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205 mediator.done();
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206 }
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207 }
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208
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209 private class Mediator extends AdapterPlug implements HgStatusInspector, Adaptable {
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210 boolean needModified;
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211 boolean needAdded;
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212 boolean needRemoved;
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213 boolean needUnknown;
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214 boolean needMissing;
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215 boolean needClean;
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216 boolean needIgnored;
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217 boolean needCopies;
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218 HgStatusHandler handler;
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219 private ChangelogHelper logHelper;
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220 private HgCallbackTargetException failure;
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221
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222 Mediator() {
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223 }
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224
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225 public void start(HgStatusHandler h, CancelSupport hcs, ChangelogHelper changelogHelper) {
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226 handler = h;
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227 super.attachAdapter(CancelSupport.class, hcs);
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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 super.detachAdapter(CancelSupport.class);
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234 logHelper = null;
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235 failure = null;
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236 }
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237
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238 public boolean busy() {
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239 return handler != null;
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240 }
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241
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242 // XXX similar code in ChangesetTransformer
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243 public void checkFailure() throws HgCallbackTargetException {
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244 // do not forget to clear exceptions for reuse of this instance
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245 if (failure != null) {
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246 HgCallbackTargetException toThrow = failure;
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247 failure = null;
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248 throw toThrow;
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249 }
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250 }
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251
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252 private void dispatch(HgStatus s) {
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253 try {
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254 handler.status(s);
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255 } catch (HgCallbackTargetException ex) {
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256 failure = ex;
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257 }
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258 }
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259
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260 public void modified(Path fname) {
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261 if (needModified) {
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262 dispatch(new HgStatus(Modified, fname, logHelper));
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263 }
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264 }
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265 public void added(Path fname) {
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266 if (needAdded) {
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267 dispatch(new HgStatus(Added, fname, logHelper));
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268 }
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269 }
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270 public void removed(Path fname) {
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271 if (needRemoved) {
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272 dispatch(new HgStatus(Removed, fname, logHelper));
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273 }
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274 }
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275 public void copied(Path fnameOrigin, Path fnameAdded) {
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276 if (needCopies) {
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277 // TODO post-1.0 in fact, merged files may report 'copied from' as well, correct status kind thus may differ from Added
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278 dispatch(new HgStatus(Added, fnameAdded, fnameOrigin, logHelper));
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279 }
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280 }
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281 public void missing(Path fname) {
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282 if (needMissing) {
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283 dispatch(new HgStatus(Missing, fname, logHelper));
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284 }
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285 }
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286 public void unknown(Path fname) {
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287 if (needUnknown) {
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288 dispatch(new HgStatus(Unknown, fname, logHelper));
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289 }
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290 }
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291 public void clean(Path fname) {
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292 if (needClean) {
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293 dispatch(new HgStatus(Clean, fname, logHelper));
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294 }
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295 }
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296 public void ignored(Path fname) {
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297 if (needIgnored) {
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298 dispatch(new HgStatus(Ignored, fname, logHelper));
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299 }
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300 }
360
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301
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302 public void invalid(Path fname, Exception err) {
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303 try {
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304 handler.error(fname, new Outcome(Outcome.Kind.Failure, "Failed to get file status", err));
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305 } catch (HgCallbackTargetException ex) {
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306 failure = ex;
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307 }
360
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308 }
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309 }
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310 }