Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgStatusCommand.java @ 709:497e697636fc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Report merged lines as changed block if possible, not as a sequence of added/deleted blocks. To facilitate access to merge parent lines AddBlock got mergeLineAt() method that reports index of the line in the second parent (if any), while insertedAt() has been changed to report index in the first parent always
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 21 Aug 2013 16:23:27 +0200
parents 1499139a600a
children
rev   line source
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1 /*
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2 * Copyright (c) 2011-2013 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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25
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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.CsetParamKeeper;
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29 import org.tmatesoft.hg.internal.Internals;
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30 import org.tmatesoft.hg.repo.HgRepository;
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31 import org.tmatesoft.hg.repo.HgRuntimeException;
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32 import org.tmatesoft.hg.repo.HgStatusCollector;
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33 import org.tmatesoft.hg.repo.HgStatusInspector;
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34 import org.tmatesoft.hg.repo.HgWorkingCopyStatusCollector;
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35 import org.tmatesoft.hg.util.Adaptable;
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36 import org.tmatesoft.hg.util.CancelSupport;
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37 import org.tmatesoft.hg.util.CancelledException;
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38 import org.tmatesoft.hg.util.Path;
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39 import org.tmatesoft.hg.util.Outcome;
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41 /**
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42 * Command to obtain file status information, 'hg status' counterpart.
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43 *
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44 * @author Artem Tikhomirov
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45 * @author TMate Software Ltd.
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46 */
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47 public class HgStatusCommand extends HgAbstractCommand<HgStatusCommand> {
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48 private final HgRepository repo;
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50 private int startRevision = TIP;
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51 private int endRevision = WORKING_COPY;
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52 private Path.Matcher scope;
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54 private final Mediator mediator = new Mediator();
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56 public HgStatusCommand(HgRepository hgRepo) {
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57 repo = hgRepo;
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58 defaults();
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59 }
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61 public HgStatusCommand defaults() {
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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.needClean = m.needIgnored = false;
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65 return this;
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66 }
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67 public HgStatusCommand all() {
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68 final Mediator m = mediator;
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69 m.needModified = m.needAdded = m.needRemoved = m.needUnknown = m.needMissing = true;
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70 m.needClean = m.needIgnored = true;
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71 return this;
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72 }
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75 public HgStatusCommand modified(boolean include) {
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76 mediator.needModified = include;
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77 return this;
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78 }
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79 public HgStatusCommand added(boolean include) {
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80 mediator.needAdded = include;
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81 return this;
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82 }
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83 public HgStatusCommand removed(boolean include) {
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84 mediator.needRemoved = include;
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85 return this;
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86 }
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87 public HgStatusCommand deleted(boolean include) {
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88 mediator.needMissing = include;
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89 return this;
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90 }
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91 public HgStatusCommand unknown(boolean include) {
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92 mediator.needUnknown = include;
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93 return this;
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94 }
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95 public HgStatusCommand clean(boolean include) {
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96 mediator.needClean = include;
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97 return this;
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98 }
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99 public HgStatusCommand ignored(boolean include) {
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100 mediator.needIgnored = include;
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101 return this;
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102 }
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103
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104 /**
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105 * If set, either base:revision or base:workingdir
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106 * to unset, pass {@link HgRepository#TIP} or {@link HgRepository#BAD_REVISION}
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107 * @param changesetRevisionIndex - local index of a changeset to base status from
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108 * @return <code>this</code> for convenience
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109 * @throws IllegalArgumentException when revision is negative or {@link HgRepository#WORKING_COPY}
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110 */
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111 public HgStatusCommand base(int changesetRevisionIndex) {
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112 if (changesetRevisionIndex == WORKING_COPY || wrongRevisionIndex(changesetRevisionIndex)) {
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113 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
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114 }
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115 if (changesetRevisionIndex == BAD_REVISION) {
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116 changesetRevisionIndex = TIP;
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117 }
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118 startRevision = changesetRevisionIndex;
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119 // TODO [2.0 API break] shall throw HgBadArgumentException, like other commands do
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120 return this;
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121 }
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122
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123 /**
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124 * Select base revision for difference
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125 * @param changeset changelog revision, left range boundary if used in conjunction with {@link #revision(int)}
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126 * @return <code>this</code> for convenience
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127 * @throws HgBadArgumentException if revision is not a valid changeset identifier
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128 */
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129 public HgStatusCommand base(Nodeid changeset) throws HgBadArgumentException {
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130 int ri = new CsetParamKeeper(repo).set(changeset).get();
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131 return base(ri);
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132 }
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133
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134 /**
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135 * Revision without base == --change
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136 * Pass {@link HgRepository#WORKING_COPY} or {@link HgRepository#BAD_REVISION} to reset
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137 * @param changesetRevisionIndex - non-negative changeset revision local index, or any of {@link HgRepository#BAD_REVISION}, {@link HgRepository#WORKING_COPY} or {@link HgRepository#TIP}
148
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138 * @return <code>this</code> for convenience
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139 * @throws IllegalArgumentException if revision index doesn't specify legitimate revision.
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140 */
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141 public HgStatusCommand revision(int changesetRevisionIndex) {
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142 if (changesetRevisionIndex == BAD_REVISION) {
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143 changesetRevisionIndex = WORKING_COPY;
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144 }
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145 if (wrongRevisionIndex(changesetRevisionIndex)) {
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146 throw new IllegalArgumentException(String.valueOf(changesetRevisionIndex));
143
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147 }
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148 endRevision = changesetRevisionIndex;
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149 // TODO [2.0 API break] shall throw HgBadArgumentException, like other commands do
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150 return this;
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151 }
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152
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153 /**
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154 * Select changeset to show difference
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155 * @see #revision(int)
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156 * @param changeset changelog revision, right range boundary if <code>base</code> revision is set
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157 * @return <code>this</code> for convenience
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158 * @throws HgBadArgumentException if revision is not a valid changeset identifier
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159 */
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160 public HgStatusCommand revision(Nodeid changeset) throws HgBadArgumentException {
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161 int ri = new CsetParamKeeper(repo).set(changeset).get();
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162 return revision(ri);
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163 }
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164
143
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165 /**
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166 * Shorthand for {@link #base(int) cmd.base(BAD_REVISION)}{@link #change(int) .revision(revision)}
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167 *
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168 * @param changesetIndex compare given revision against its parent
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169 * @return <code>this</code> for convenience
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170 */
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171 public HgStatusCommand change(int changesetIndex) {
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172 base(BAD_REVISION);
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173 return revision(changesetIndex);
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174 }
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175
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176 /**
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177 * Report changes in specified changeset
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178 * @see #change(int)
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179 * @param changeset changelog revision to get status of
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180 * @return <code>this</code> for convenience
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181 * @throws HgBadArgumentException if revision is not a valid changeset identifier
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182 */
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183 public HgStatusCommand change(Nodeid changeset) throws HgBadArgumentException {
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184 base(BAD_REVISION);
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185 return revision(changeset);
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186 }
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187
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188 /**
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189 * Limit status operation to certain sub-tree.
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190 *
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191 * @param scopeMatcher - matcher to use, pass <code>null/<code> to reset
148
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192 * @return <code>this</code> for convenience
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193 */
229
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194 public HgStatusCommand match(Path.Matcher scopeMatcher) {
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195 scope = scopeMatcher;
123
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196 return this;
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197 }
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198
131
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199 public HgStatusCommand subrepo(boolean visit) {
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200 throw Internals.notImplemented();
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201 }
93
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202
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203 /**
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204 * Perform status operation according to parameters set.
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205 *
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206 * @param statusHandler callback to get status information
427
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207 * @throws HgCallbackTargetException propagated exception from the handler
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208 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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209 * @throws IOException if there are (further unspecified) errors while walking working copy
423
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210 * @throws CancelledException if execution of the command was cancelled
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211 * @throws IllegalArgumentException if handler is <code>null</code>
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212 * @throws ConcurrentModificationException if this command already runs (i.e. being used from another thread)
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213 */
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214 public void execute(HgStatusHandler statusHandler) throws HgCallbackTargetException, HgException, IOException, CancelledException {
109
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215 if (statusHandler == null) {
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216 throw new IllegalArgumentException();
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217 }
128
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218 if (mediator.busy()) {
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219 throw new ConcurrentModificationException();
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220 }
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221 HgStatusCollector sc = new HgStatusCollector(repo); // TODO from CommandContext
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222 // PathPool pathHelper = new PathPool(repo.getPathHelper()); // TODO from CommandContext
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223 try {
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224 // XXX if I need a rough estimation (for ProgressMonitor) of number of work units,
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225 // I may use number of files in either rev1 or rev2 manifest edition
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226 mediator.start(statusHandler, getCancelSupport(statusHandler, true), new ChangelogHelper(repo, startRevision));
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227 if (endRevision == WORKING_COPY) {
229
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228 HgWorkingCopyStatusCollector wcsc = scope != null ? HgWorkingCopyStatusCollector.create(repo, scope) : new HgWorkingCopyStatusCollector(repo);
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229 wcsc.setBaseRevisionCollector(sc);
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230 wcsc.walk(startRevision, mediator);
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231 } else {
229
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232 sc.setScope(scope); // explicitly set, even if null - would be handy once we reuse StatusCollector
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233 if (startRevision == TIP) {
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234 sc.change(endRevision, mediator);
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235 } else {
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236 sc.walk(startRevision, endRevision, mediator);
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237 }
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238 }
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239 mediator.checkFailure();
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240 } catch (HgRuntimeException ex) {
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241 throw new HgLibraryFailureException(ex);
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242 } finally {
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243 mediator.done();
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244 }
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245 }
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246
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247 private class Mediator extends AdapterPlug implements HgStatusInspector, Adaptable {
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248 boolean needModified;
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249 boolean needAdded;
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250 boolean needRemoved;
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251 boolean needUnknown;
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252 boolean needMissing;
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253 boolean needClean;
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254 boolean needIgnored;
360
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255 HgStatusHandler handler;
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256 private ChangelogHelper logHelper;
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257 private HgCallbackTargetException failure;
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258
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259 Mediator() {
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260 }
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261
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262 public void start(HgStatusHandler h, CancelSupport hcs, ChangelogHelper changelogHelper) {
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263 handler = h;
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264 super.attachAdapter(CancelSupport.class, hcs);
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265 logHelper = changelogHelper;
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266 }
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267
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268 public void done() {
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269 handler = null;
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270 super.detachAdapter(CancelSupport.class);
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271 logHelper = null;
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272 failure = null;
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273 }
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274
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275 public boolean busy() {
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276 return handler != null;
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277 }
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278
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279 // XXX similar code in ChangesetTransformer
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280 public void checkFailure() throws HgCallbackTargetException {
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281 // do not forget to clear exceptions for reuse of this instance
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282 if (failure != null) {
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283 HgCallbackTargetException toThrow = failure;
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284 failure = null;
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285 throw toThrow;
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286 }
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287 }
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288
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289 private void dispatch(HgStatus s) {
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290 try {
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291 handler.status(s);
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292 } catch (HgCallbackTargetException ex) {
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293 failure = ex;
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294 }
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295 }
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296
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297 public void modified(Path fname) {
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298 if (needModified) {
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299 dispatch(new HgStatus(Modified, fname, logHelper));
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300 }
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301 }
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302 public void added(Path fname) {
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303 if (needAdded) {
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304 dispatch(new HgStatus(Added, fname, logHelper));
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305 }
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306 }
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307 public void removed(Path fname) {
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308 if (needRemoved) {
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309 dispatch(new HgStatus(Removed, fname, logHelper));
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310 }
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311 }
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312 public void copied(Path fnameOrigin, Path fnameAdded) {
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313 // 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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314 dispatch(new HgStatus(Added, fnameAdded, fnameOrigin, logHelper));
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315 }
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316 public void missing(Path fname) {
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317 if (needMissing) {
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318 dispatch(new HgStatus(Missing, fname, logHelper));
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319 }
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320 }
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321 public void unknown(Path fname) {
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322 if (needUnknown) {
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323 dispatch(new HgStatus(Unknown, fname, logHelper));
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324 }
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325 }
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326 public void clean(Path fname) {
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327 if (needClean) {
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328 dispatch(new HgStatus(Clean, fname, logHelper));
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329 }
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330 }
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331 public void ignored(Path fname) {
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332 if (needIgnored) {
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333 dispatch(new HgStatus(Ignored, fname, logHelper));
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334 }
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335 }
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336
423
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337 public void invalid(Path fname, Exception err) {
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338 try {
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339 handler.error(fname, new Outcome(Outcome.Kind.Failure, "Failed to get file status", err));
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340 } catch (HgCallbackTargetException ex) {
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341 failure = ex;
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342 }
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150500515714 Report non-critical errors during status operation to handler/inspector
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343 }
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344 }
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345 }