Mercurial > jhg
annotate src/org/tmatesoft/hg/core/StatusCommand.java @ 115:c0cc2535462c
Introduced channels to pipeline (and easily filter) data streams
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Thu, 03 Feb 2011 23:32:08 +0100 |
parents | dd4d2d0e42cd |
children | 4f509f5bc8cb |
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1 /* |
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2 * Copyright (c) 2011 TMate Software Ltd |
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3 * |
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4 * This program is free software; you can redistribute it and/or modify |
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5 * it under the terms of the GNU General Public License as published by |
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6 * the Free Software Foundation; version 2 of the License. |
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7 * |
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8 * This program is distributed in the hope that it will be useful, |
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 * GNU General Public License for more details. |
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12 * |
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13 * For information on how to redistribute this software under |
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14 * the terms of a license other than GNU General Public License |
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15 * contact TMate Software at support@hg4j.com |
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16 */ |
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17 package org.tmatesoft.hg.core; |
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18 |
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19 import static org.tmatesoft.hg.core.StatusCommand.HgStatus.Kind.*; |
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20 import static org.tmatesoft.hg.repo.HgRepository.*; |
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21 |
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22 import java.util.ConcurrentModificationException; |
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23 |
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24 import org.tmatesoft.hg.core.Path.Matcher; |
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25 import org.tmatesoft.hg.core.StatusCommand.HgStatus.Kind; |
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26 import org.tmatesoft.hg.repo.HgRepository; |
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27 import org.tmatesoft.hg.repo.HgStatusCollector; |
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28 import org.tmatesoft.hg.repo.HgStatusInspector; |
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29 import org.tmatesoft.hg.repo.HgWorkingCopyStatusCollector; |
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30 |
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31 /** |
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32 * |
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33 * @author Artem Tikhomirov |
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34 * @author TMate Software Ltd. |
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35 */ |
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36 public class StatusCommand { |
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37 private final HgRepository repo; |
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38 |
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39 private int startRevision = TIP; |
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40 private int endRevision = WORKING_COPY; |
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41 private boolean visitSubRepo = true; |
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42 |
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43 private Handler handler; |
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44 private final Mediator mediator = new Mediator(); |
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45 |
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46 public StatusCommand(HgRepository hgRepo) { |
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47 repo = hgRepo; |
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48 defaults(); |
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49 } |
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50 |
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51 public StatusCommand defaults() { |
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52 final Mediator m = mediator; |
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53 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true; |
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54 m.needCopies = m.needClean = m.needIgnored = false; |
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55 return this; |
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56 } |
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57 public StatusCommand all() { |
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58 final Mediator m = mediator; |
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59 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true; |
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60 m.needCopies = m.needClean = m.needIgnored = true; |
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61 return this; |
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62 } |
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63 |
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64 |
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65 public StatusCommand modified(boolean include) { |
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66 mediator.needModified = include; |
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67 return this; |
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68 } |
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69 public StatusCommand added(boolean include) { |
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70 mediator.needAdded = include; |
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71 return this; |
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72 } |
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73 public StatusCommand removed(boolean include) { |
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74 mediator.needRemoved = include; |
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75 return this; |
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76 } |
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77 public StatusCommand deleted(boolean include) { |
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78 mediator.needMissing = include; |
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79 return this; |
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80 } |
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81 public StatusCommand unknown(boolean include) { |
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82 mediator.needUnknown = include; |
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83 return this; |
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84 } |
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85 public StatusCommand clean(boolean include) { |
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86 mediator.needClean = include; |
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87 return this; |
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88 } |
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89 public StatusCommand ignored(boolean include) { |
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90 mediator.needIgnored = include; |
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91 return this; |
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92 } |
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93 |
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94 /** |
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95 * if set, either base:revision or base:workingdir |
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96 * to unset, pass {@link HgRepository#TIP} or {@link HgRepository#BAD_REVISION} |
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97 * @param revision |
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98 * @return |
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99 */ |
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100 |
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101 public StatusCommand base(int revision) { |
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102 if (revision == WORKING_COPY) { |
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103 throw new IllegalArgumentException(); |
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104 } |
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105 if (revision == BAD_REVISION) { |
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106 revision = TIP; |
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107 } |
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108 startRevision = revision; |
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109 return this; |
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110 } |
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111 |
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112 /** |
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113 * Revision without base == --change |
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114 * Pass {@link HgRepository#WORKING_COPY} or {@link HgRepository#BAD_REVISION} to reset |
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115 * @param revision |
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116 * @return |
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117 */ |
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118 public StatusCommand revision(int revision) { |
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119 if (revision == BAD_REVISION) { |
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120 revision = WORKING_COPY; |
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121 } |
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122 // XXX negative values, except for predefined constants, shall throw IAE. |
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123 endRevision = revision; |
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124 return this; |
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125 } |
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126 |
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127 // pass null to reset |
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128 public StatusCommand match(Path.Matcher pathMatcher) { |
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129 mediator.matcher = pathMatcher; |
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130 throw HgRepository.notImplemented(); |
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131 } |
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132 |
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133 public StatusCommand subrepo(boolean visit) { |
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134 visitSubRepo = visit; |
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135 throw HgRepository.notImplemented(); |
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136 } |
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137 |
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138 /** |
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139 * Perform status operation according to parameters set. |
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140 * |
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141 * @param handler callback to get status information |
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142 * @throws IllegalArgumentException if handler is <code>null</code> |
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143 * @throws ConcurrentModificationException if this command already runs (i.e. being used from another thread) |
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144 */ |
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145 public void execute(Handler statusHandler) { |
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146 if (statusHandler == null) { |
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147 throw new IllegalArgumentException(); |
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148 } |
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149 if (handler != null) { |
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150 throw new ConcurrentModificationException(); |
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151 } |
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152 handler = statusHandler; |
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153 HgStatusCollector sc = new HgStatusCollector(repo); // TODO from CommandContext |
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154 // PathPool pathHelper = new PathPool(repo.getPathHelper()); // TODO from CommandContext |
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155 try { |
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156 // XXX if I need a rough estimation (for ProgressMonitor) of number of work units, |
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157 // I may use number of files in either rev1 or rev2 manifest edition |
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158 mediator.start(); |
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159 if (endRevision == WORKING_COPY) { |
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160 HgWorkingCopyStatusCollector wcsc = new HgWorkingCopyStatusCollector(repo); |
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161 wcsc.setBaseRevisionCollector(sc); |
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162 wcsc.walk(startRevision, mediator); |
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163 } else { |
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164 if (startRevision == TIP) { |
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165 sc.change(endRevision, mediator); |
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166 } else { |
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167 sc.walk(startRevision, endRevision, mediator); |
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168 } |
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169 } |
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170 } finally { |
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171 mediator.done(); |
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172 handler = null; |
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173 } |
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174 } |
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175 |
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176 public interface Handler { |
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177 void handleStatus(HgStatus s); |
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178 } |
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179 |
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180 public static class HgStatus { |
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181 public enum Kind { |
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182 Modified, Added, Removed, Unknown, Missing, Clean, Ignored |
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183 }; |
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184 private final Kind kind; |
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185 private final Path path; |
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186 private final Path origin; |
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187 |
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188 HgStatus(Kind kind, Path path) { |
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189 this(kind, path, null); |
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190 } |
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191 |
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192 HgStatus(Kind kind, Path path, Path copyOrigin) { |
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193 this.kind = kind; |
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194 this.path = path; |
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195 origin = copyOrigin; |
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196 } |
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197 |
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198 public Kind getKind() { |
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199 return kind; |
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200 } |
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201 |
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202 public Path getPath() { |
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203 return path; |
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204 } |
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205 |
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206 public Path getOriginalPath() { |
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207 return origin; |
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208 } |
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209 |
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210 public boolean isCopy() { |
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211 return origin != null; |
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212 } |
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213 } |
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214 |
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215 |
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216 private class Mediator implements HgStatusInspector { |
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217 boolean needModified; |
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218 boolean needAdded; |
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219 boolean needRemoved; |
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220 boolean needUnknown; |
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221 boolean needMissing; |
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222 boolean needClean; |
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223 boolean needIgnored; |
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224 boolean needCopies; |
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225 Matcher matcher; |
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226 |
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227 Mediator() { |
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228 } |
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229 |
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230 public void start() { |
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231 |
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232 } |
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233 public void done() { |
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234 } |
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235 |
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236 public void modified(Path fname) { |
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237 if (needModified) { |
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238 if (matcher == null || matcher.accept(fname)) { |
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239 handler.handleStatus(new HgStatus(Modified, fname)); |
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240 } |
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241 } |
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242 } |
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243 public void added(Path fname) { |
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244 if (needAdded) { |
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245 if (matcher == null || matcher.accept(fname)) { |
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246 handler.handleStatus(new HgStatus(Added, fname)); |
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247 } |
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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 if (matcher == null || matcher.accept(fname)) { |
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253 handler.handleStatus(new HgStatus(Removed, fname)); |
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254 } |
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255 } |
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256 } |
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257 public void copied(Path fnameOrigin, Path fnameAdded) { |
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258 if (needCopies) { |
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259 if (matcher == null || matcher.accept(fnameAdded)) { |
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260 handler.handleStatus(new HgStatus(Kind.Added, fnameAdded, fnameOrigin)); |
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261 } |
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262 } |
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263 } |
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264 public void missing(Path fname) { |
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265 if (needMissing) { |
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266 if (matcher == null || matcher.accept(fname)) { |
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267 handler.handleStatus(new HgStatus(Missing, fname)); |
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268 } |
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269 } |
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270 } |
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271 public void unknown(Path fname) { |
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272 if (needUnknown) { |
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273 if (matcher == null || matcher.accept(fname)) { |
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274 handler.handleStatus(new HgStatus(Unknown, fname)); |
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275 } |
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276 } |
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277 } |
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278 public void clean(Path fname) { |
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279 if (needClean) { |
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280 if (matcher == null || matcher.accept(fname)) { |
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281 handler.handleStatus(new HgStatus(Clean, fname)); |
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282 } |
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283 } |
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284 } |
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285 public void ignored(Path fname) { |
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286 if (needIgnored) { |
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287 if (matcher == null || matcher.accept(fname)) { |
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288 handler.handleStatus(new HgStatus(Ignored, fname)); |
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289 } |
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290 } |
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291 } |
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292 } |
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293 } |