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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 348:a0864b2892cd

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Expose errors reading mercurial control files with exception
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 24 Nov 2011 02:57:03 +0100
parents f377f833b780
children 33eaed1ad130
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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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import static java.lang.Math.max;
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20 import static java.lang.Math.min;
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21 import static org.tmatesoft.hg.repo.HgRepository.*;
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23 import java.io.File;
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24 import java.io.IOException;
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25 import java.nio.ByteBuffer;
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26 import java.nio.channels.ReadableByteChannel;
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27 import java.util.ArrayList;
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28 import java.util.Collections;
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29 import java.util.NoSuchElementException;
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30 import java.util.Set;
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31 import java.util.TreeSet;
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32
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33 import org.tmatesoft.hg.core.HgBadStateException;
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34 import org.tmatesoft.hg.core.HgDataStreamException;
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35 import org.tmatesoft.hg.core.HgException;
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36 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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37 import org.tmatesoft.hg.core.Nodeid;
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38 import org.tmatesoft.hg.internal.ByteArrayChannel;
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39 import org.tmatesoft.hg.internal.Experimental;
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40 import org.tmatesoft.hg.internal.FilterByteChannel;
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41 import org.tmatesoft.hg.internal.ManifestRevision;
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42 import org.tmatesoft.hg.internal.PathScope;
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43 import org.tmatesoft.hg.util.ByteChannel;
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44 import org.tmatesoft.hg.util.CancelledException;
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45 import org.tmatesoft.hg.util.FileInfo;
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46 import org.tmatesoft.hg.util.FileIterator;
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47 import org.tmatesoft.hg.util.FileWalker;
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48 import org.tmatesoft.hg.util.Path;
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49 import org.tmatesoft.hg.util.PathPool;
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50 import org.tmatesoft.hg.util.PathRewrite;
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51 import org.tmatesoft.hg.util.RegularFileInfo;
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53 /**
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54 *
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55 * @author Artem Tikhomirov
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56 * @author TMate Software Ltd.
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57 */
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58 public class HgWorkingCopyStatusCollector {
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60 private final HgRepository repo;
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61 private final FileIterator repoWalker;
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62 private HgDirstate dirstate;
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63 private HgStatusCollector baseRevisionCollector;
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64 private PathPool pathPool;
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65 private ManifestRevision dirstateParentManifest;
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67 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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68 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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69 }
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71 // FIXME document cons
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72 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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73 repo = hgRepo;
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74 repoWalker = hgRepoWalker;
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75 }
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77 /**
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78 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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79 * @param sc may be null
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80 */
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81 public void setBaseRevisionCollector(HgStatusCollector sc) {
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82 baseRevisionCollector = sc;
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83 }
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84
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85 /*package-local*/ PathPool getPathPool() {
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86 if (pathPool == null) {
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87 if (baseRevisionCollector == null) {
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88 pathPool = new PathPool(new PathRewrite.Empty());
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89 } else {
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90 return baseRevisionCollector.getPathPool();
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91 }
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92 }
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93 return pathPool;
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94 }
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95
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96 public void setPathPool(PathPool pathPool) {
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97 this.pathPool = pathPool;
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98 }
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99
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100 /**
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101 * Access to directory state information this collector uses.
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102 * @return directory state holder, never <code>null</code>
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103 */
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104 public HgDirstate getDirstate() throws HgInvalidControlFileException {
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105 if (dirstate == null) {
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106 dirstate = repo.loadDirstate(getPathPool());
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107 }
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108 return dirstate;
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109 }
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111 private HgDirstate getDirstateImpl() {
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112 return dirstate;
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113 }
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114
282
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115 private ManifestRevision getManifest(int changelogLocalRev) {
284
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116 assert changelogLocalRev >= 0;
282
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117 ManifestRevision mr;
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118 if (baseRevisionCollector != null) {
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119 mr = baseRevisionCollector.raw(changelogLocalRev);
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120 } else {
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121 mr = new ManifestRevision(null, null);
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122 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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123 }
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124 return mr;
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125 }
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126
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127 private ManifestRevision getDirstateParentManifest() {
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128 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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129 // In such case, we need to compare local files not to their TIP content, but to specific version at the time of selected revision
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130 if (dirstateParentManifest == null) {
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131 Nodeid dirstateParent = getDirstateImpl().parents().first();
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132 if (dirstateParent.isNull()) {
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133 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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134 } else {
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135 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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136 dirstateParentManifest = getManifest(changelogLocalRev);
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137 }
282
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138 }
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139 return dirstateParentManifest;
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140 }
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141
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142 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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143 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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144 public void walk(int baseRevision, HgStatusInspector inspector) {
282
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145 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
218
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146 throw new IllegalArgumentException(String.valueOf(baseRevision));
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147 }
348
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148 if (getDirstateImpl() == null) {
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149 // XXX this is a hack to avoid declaring throws for the #walk() at the moment
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150 // once I decide whether to have mediator that collects errors or to use exceptions here
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151 // this hack shall be removed in favor of either severe error in mediator or a re-thrown exception.
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152 try {
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153 getDirstate();
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154 } catch (HgInvalidControlFileException ex) {
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155 repo.getContext().getLog().error(getClass(), ex, "Can't read dirstate");
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156 return;
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157 }
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158 }
282
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159 ManifestRevision collect = null; // non null indicates we compare against base revision
285
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160 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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161 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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162 collect = getManifest(baseRevision);
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163 baseRevFiles = new TreeSet<Path>(collect.files());
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164 }
94
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165 if (inspector instanceof HgStatusCollector.Record) {
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166 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
282
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167 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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168 // because the change might be actually in working copy. Nevertheless,
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169 // as long as no nodeids can be provided for WC, seems reasonable to report
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170 // latest known nodeid change (although at the moment this is not used and
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171 // is done mostly not to leave stale initialization in the Record)
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172 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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173 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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174 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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175 } else {
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176 rev1 = baseRevision;
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177 }
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178 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
68
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179 }
282
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180 final HgIgnore hgIgnore = repo.getIgnore();
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181 repoWalker.reset();
293
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182 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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183 final HgDirstate ds = getDirstateImpl();
293
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184 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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185 while (repoWalker.hasNext()) {
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186 repoWalker.next();
284
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187 final Path fname = getPathPool().path(repoWalker.name());
287
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188 FileInfo f = repoWalker.file();
293
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189 Path knownInDirstate;
226
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190 if (!f.exists()) {
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191 // file coming from iterator doesn't exist.
293
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192 if ((knownInDirstate = ds.known(fname)) != null) {
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193 // found in dirstate
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194 processed.add(knownInDirstate);
294
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195 if (ds.checkRemoved(knownInDirstate) == null) {
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196 inspector.missing(knownInDirstate);
226
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197 } else {
294
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198 inspector.removed(knownInDirstate);
226
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199 }
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200 // do not report it as removed later
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201 if (collect != null) {
294
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202 baseRevFiles.remove(knownInDirstate);
226
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203 }
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204 } else {
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205 // chances are it was known in baseRevision. We may rely
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206 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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207 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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208 if (collect != null && baseRevFiles.remove(fname)) {
226
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209 inspector.removed(fname);
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210 } else {
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211 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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212 // as unknown. Command-line HG aborts "system can't find the file specified"
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213 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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214 // however, as it's unlikely to get unexisting files from FileIterator, and
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215 // its better to see erroneous file status rather than not to see any (which is too easy
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diff changeset
216 // to overlook), I think unknown() is reasonable approach here
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217 inspector.unknown(fname);
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diff changeset
218 }
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diff changeset
219 }
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diff changeset
220 continue;
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diff changeset
221 }
293
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222 if ((knownInDirstate = ds.known(fname)) != null) {
226
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223 // tracked file.
58
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224 // modified, added, removed, clean
293
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225 processed.add(knownInDirstate);
58
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226 if (collect != null) { // need to check against base revision, not FS file
294
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diff changeset
227 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, knownInDirstate, f, inspector);
58
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228 } else {
294
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229 checkLocalStatusAgainstFile(knownInDirstate, f, inspector);
58
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230 }
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231 } else {
226
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232 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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233 inspector.ignored(fname);
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234 } else {
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235 inspector.unknown(fname);
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236 }
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237 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
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238 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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239 // yield two statuses for the same file)
58
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240 }
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241 }
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242 if (collect != null) {
285
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243 for (Path fromBase : baseRevFiles) {
226
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244 if (repoWalker.inScope(fromBase)) {
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245 inspector.removed(fromBase);
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246 }
58
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247 }
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248 }
293
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249 knownEntries.removeAll(processed);
284
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250 for (Path m : knownEntries) {
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251 if (!repoWalker.inScope(m)) {
226
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252 // do not report as missing/removed those FileIterator doesn't care about.
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253 continue;
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254 }
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255 // missing known file from a working dir
293
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256 if (ds.checkRemoved(m) == null) {
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257 // not removed from the repository = 'deleted'
284
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258 inspector.missing(m);
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259 } else {
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260 // removed from the repo
76
658fa6b3a371 Fixed a defect when a file added and removed past some revision was reported as R for status against that rev
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261 // if we check against non-tip revision, do not report files that were added past that revision and now removed.
285
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262 if (collect == null || baseRevFiles.contains(m)) {
284
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263 inspector.removed(m);
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264 }
58
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265 }
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266 }
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267 }
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268
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
269 public HgStatusCollector.Record status(int baseRevision) {
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diff changeset
270 HgStatusCollector.Record rv = new HgStatusCollector.Record();
58
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271 walk(baseRevision, rv);
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272 return rv;
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273 }
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274
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275 //********************************************
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276
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277
287
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diff changeset
278 private void checkLocalStatusAgainstFile(Path fname, FileInfo f, HgStatusInspector inspector) {
58
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279 HgDirstate.Record r;
348
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diff changeset
280 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
58
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281 // either clean or modified
290
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diff changeset
282 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
280
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283 if (timestampEqual && sizeEqual) {
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diff changeset
284 inspector.clean(fname);
290
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diff changeset
285 } else if (!sizeEqual && r.size() >= 0) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
286 inspector.modified(fname);
58
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287 } else {
280
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diff changeset
288 // size is the same or unknown, and, perhaps, different timestamp
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
289 // check actual content to avoid false modified files
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diff changeset
290 HgDataFile df = repo.getFileNode(fname);
337
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
291 if (!df.exists()) {
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
292 String msg = String.format("File %s known as normal in dirstate (%d, %d), doesn't exist at %s", fname, r.modificationTime(), r.size(), repo.getStoragePath(df));
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
293 throw new HgBadStateException(msg);
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
294 }
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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diff changeset
295 Nodeid rev = getDirstateParentManifest().nodeid(fname);
314
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
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parents: 295
diff changeset
296 // rev might be null here if fname comes to dirstate as a result of a merge operation
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diff changeset
297 // where one of the parents (first parent) had no fname file, but second parent had.
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diff changeset
298 // E.g. fork revision 3, revision 4 gets .hgtags, few modifications and merge(3,12)
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diff changeset
299 // see Issue 14 for details
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diff changeset
300 if (rev == null || !areTheSame(f, df, rev)) {
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
301 inspector.modified(df.getPath());
180
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
302 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
303 inspector.clean(df.getPath());
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
304 }
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305 }
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diff changeset
306 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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diff changeset
307 if (r.copySource() == null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
308 inspector.added(fname);
58
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309 } else {
290
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diff changeset
310 inspector.copied(r.copySource(), fname);
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311 }
348
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diff changeset
312 } else if ((r = getDirstateImpl().checkRemoved(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
313 inspector.removed(fname);
348
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diff changeset
314 } else if ((r = getDirstateImpl().checkMerged(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
315 inspector.modified(fname);
58
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316 }
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317 }
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318
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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diff changeset
319 // XXX refactor checkLocalStatus methods in more OO way
287
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diff changeset
320 private void checkLocalStatusAgainstBaseRevision(Set<Path> baseRevNames, ManifestRevision collect, int baseRevision, Path fname, FileInfo f, HgStatusInspector inspector) {
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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321 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
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diff changeset
322 Nodeid nid1 = collect.nodeid(fname);
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323 HgManifest.Flags flags = collect.flags(fname);
58
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324 HgDirstate.Record r;
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325 if (nid1 == null) {
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326 // normal: added?
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327 // added: not known at the time of baseRevision, shall report
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328 // merged: was not known, report as added?
348
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329 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
157
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330 try {
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331 Path origin = HgStatusCollector.getOriginIfCopy(repo, fname, baseRevNames, baseRevision);
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332 if (origin != null) {
226
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333 inspector.copied(getPathPool().path(origin), fname);
157
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334 return;
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335 }
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336 } catch (HgDataStreamException ex) {
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337 ex.printStackTrace();
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338 // FIXME report to a mediator, continue status collection
90
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339 }
348
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340 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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341 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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342 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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343 inspector.copied(r.copySource(), fname);
58
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344 return;
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345 }
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346 // fall-through, report as added
348
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347 } else if (getDirstateImpl().checkRemoved(fname) != null) {
58
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348 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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349 return;
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350 }
226
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351 inspector.added(fname);
58
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352 } else {
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353 // was known; check whether clean or modified
285
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354 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
348
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355 if ((r = getDirstateImpl().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
282
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356 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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357 // same code as in #checkLocalStatusAgainstFile
290
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358 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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359 boolean handled = false;
280
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360 if (timestampEqual && sizeEqual) {
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361 inspector.clean(fname);
282
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362 handled = true;
290
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363 } else if (!sizeEqual && r.size() >= 0) {
280
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364 inspector.modified(fname);
282
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365 handled = true;
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366 } else if (!todoCheckFlagsEqual(f, flags)) {
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367 // seems like flags have changed, no reason to check content further
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368 inspector.modified(fname);
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369 handled = true;
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370 }
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diff changeset
371 if (handled) {
285
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diff changeset
372 baseRevNames.remove(fname); // consumed, processed, handled.
280
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diff changeset
373 return;
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374 }
282
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diff changeset
375 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
e51dd9a14b6f Yet another WC status fix, where dirstate parent and base revision are treated right (dirstate parent other than tip and explicit baseRevision are not the same)
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diff changeset
376 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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377 // FALL THROUGH
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diff changeset
378 }
348
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diff changeset
379 if (r != null || (r = getDirstateImpl().checkMerged(fname)) != null || (r = getDirstateImpl().checkAdded(fname)) != null) {
282
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diff changeset
380 // check actual content to see actual changes
280
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381 // when added - seems to be the case of a file added once again, hence need to check if content is different
58
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382 // either clean or modified
282
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diff changeset
383 HgDataFile fileNode = repo.getFileNode(fname);
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diff changeset
384 if (areTheSame(f, fileNode, nid1)) {
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diff changeset
385 inspector.clean(fname);
58
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386 } else {
282
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387 inspector.modified(fname);
58
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388 }
285
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diff changeset
389 baseRevNames.remove(fname); // consumed, processed, handled.
348
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390 } else if (getDirstateImpl().checkRemoved(fname) != null) {
226
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391 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
392 inspector.removed(fname);
285
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393 baseRevNames.remove(fname); // consumed, processed, handled.
58
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394 }
226
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395 // only those left in baseRevNames after processing are reported as removed
58
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396 }
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diff changeset
397
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398 // TODO think over if content comparison may be done more effectively by e.g. calculating nodeid for a local file and comparing it with nodeid from manifest
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399 // we don't need to tell exact difference, hash should be enough to detect difference, and it doesn't involve reading historical file content, and it's relatively
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400 // cheap to calc hash on a file (no need to keep it completely in memory). OTOH, if I'm right that the next approach is used for nodeids:
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401 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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402 // then it's sufficient to check parents from dirstate, and if they do not match parents from file's baseRevision (non matching parents means different nodeids).
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403 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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404 }
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405
287
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diff changeset
406 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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407 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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diff changeset
408 ByteArrayChannel bac = new ByteArrayChannel();
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diff changeset
409 boolean ioFailed = false;
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diff changeset
410 try {
282
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diff changeset
411 int localRevision = dataFile.getLocalRevision(revision);
157
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412 // need content with metadata striped off - although theoretically chances are metadata may be different,
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413 // WC doesn't have it anyway
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diff changeset
414 dataFile.content(localRevision, bac);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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diff changeset
415 } catch (CancelledException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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416 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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417 } catch (HgException ex) {
323
4c7e3ba67213 Exception when analyzing metadata of an empty renamed file
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diff changeset
418 repo.getContext().getLog().warn(getClass(), ex, null);
157
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419 ioFailed = true;
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420 }
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421 return !ioFailed && areTheSame(f, bac.toArray(), dataFile.getPath());
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422 }
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423
287
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424 private boolean areTheSame(FileInfo f, final byte[] data, Path p) {
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425 ReadableByteChannel is = null;
295
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426 class Check implements ByteChannel {
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427 final boolean debug = repo.getContext().getLog().isDebug();
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428 boolean sameSoFar = true;
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429 int x = 0;
219
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430
295
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431 public int write(ByteBuffer buffer) {
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432 for (int i = buffer.remaining(); i > 0; i--, x++) {
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433 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
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434 if (debug) {
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435 byte[] xx = new byte[15];
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436 if (buffer.position() > 5) {
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437 buffer.position(buffer.position() - 5);
117
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438 }
334
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439 buffer.get(xx, 0, min(xx.length, i-1 /*-1 for the one potentially read at buffer.get in if() */));
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440 String exp;
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441 if (x < data.length) {
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442 exp = new String(data, max(0, x - 4), min(data.length - x, 20));
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443 } else {
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444 int offset = max(0, x - 4);
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445 exp = new String(data, offset, min(data.length - offset, 20));
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446 }
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447 repo.getContext().getLog().debug(getClass(), "expected >>%s<< but got >>%s<<", exp, new String(xx));
117
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448 }
295
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449 sameSoFar = false;
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450 break;
219
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451 }
117
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452 }
295
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453 buffer.position(buffer.limit()); // mark as read
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454 return buffer.limit();
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455 }
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456
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457 public boolean sameSoFar() {
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458 return sameSoFar;
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459 }
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460 public boolean ultimatelyTheSame() {
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461 return sameSoFar && x == data.length;
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462 }
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463 };
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464 Check check = new Check();
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465 try {
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466 is = f.newInputChannel();
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467 ByteBuffer fb = ByteBuffer.allocate(min(1 + data.length * 2 /*to fit couple of lines appended; never zero*/, 8192));
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468 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
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469 while (is.read(fb) != -1 && check.sameSoFar()) {
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470 fb.flip();
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471 filters.write(fb);
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472 fb.compact();
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473 }
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474 return check.ultimatelyTheSame();
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475 } catch (CancelledException ex) {
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476 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
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477 return check.ultimatelyTheSame();
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diff changeset
478 } catch (IOException ex) {
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479 repo.getContext().getLog().warn(getClass(), ex, null);
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480 } finally {
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diff changeset
481 if (is != null) {
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482 try {
287
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483 is.close();
295
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484 } catch (IOException ex) {
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485 repo.getContext().getLog().info(getClass(), ex, null);
117
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diff changeset
486 }
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diff changeset
487 }
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488 }
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489 return false;
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490 }
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491
287
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492 private static boolean todoCheckFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
58
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493 // FIXME implement
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
494 return true;
58
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495 }
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diff changeset
496
229
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497 /**
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498 * Configure status collector to consider only subset of a working copy tree. Tries to be as effective as possible, and to
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499 * traverse only relevant part of working copy on the filesystem.
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500 *
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501 * @param hgRepo repository
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502 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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503 *
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504 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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diff changeset
505 */
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506 @Experimental(reason="Provisional API")
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diff changeset
507 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
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diff changeset
508 ArrayList<Path> f = new ArrayList<Path>(5);
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diff changeset
509 ArrayList<Path> d = new ArrayList<Path>(5);
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diff changeset
510 for (Path p : paths) {
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diff changeset
511 if (p.isDirectory()) {
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diff changeset
512 d.add(p);
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diff changeset
513 } else {
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diff changeset
514 f.add(p);
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diff changeset
515 }
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diff changeset
516 }
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517 // final Path[] dirs = f.toArray(new Path[d.size()]);
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diff changeset
518 if (d.isEmpty()) {
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diff changeset
519 final Path[] files = f.toArray(new Path[f.size()]);
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diff changeset
520 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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521 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
522 }
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diff changeset
523 //
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diff changeset
524
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diff changeset
525 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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diff changeset
526 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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diff changeset
527 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
528 }
229
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diff changeset
529
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diff changeset
530 /**
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diff changeset
531 * Configure collector object to calculate status for matching files only.
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diff changeset
532 * This method may be less effective than explicit list of files as it iterates over whole repository
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diff changeset
533 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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diff changeset
534 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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diff changeset
535 *
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diff changeset
536 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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diff changeset
537 */
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diff changeset
538 @Experimental(reason="Provisional API. May add boolean strict argument for those who write smart matchers that can be used in FileWalker")
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539 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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540 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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541 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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542 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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543 // patterns in the scope. I.e. if scope lists a file (PathGlobMatcher("a/b/c.txt")), FileWalker won't get deep
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544 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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545 // users would write robust matchers, and I don't see a decent way to enforce that (i.e. factory to produce
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546 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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547 // method above/
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548 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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549 }
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550
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551 private static class FileListIterator implements FileIterator {
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552 private final File dir;
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553 private final Path[] paths;
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554 private int index;
287
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555 private RegularFileInfo nextFile;
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556
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557 public FileListIterator(File startDir, Path... files) {
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558 dir = startDir;
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559 paths = files;
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560 reset();
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561 }
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562
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563 public void reset() {
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564 index = -1;
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565 nextFile = new RegularFileInfo();
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566 }
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567
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568 public boolean hasNext() {
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569 return paths.length > 0 && index < paths.length-1;
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570 }
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571
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572 public void next() {
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573 index++;
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574 if (index == paths.length) {
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575 throw new NoSuchElementException();
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576 }
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577 nextFile.init(new File(dir, paths[index].toString()));
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578 }
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579
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580 public Path name() {
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581 return paths[index];
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582 }
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583
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584 public FileInfo file() {
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585 return nextFile;
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586 }
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587
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588 public boolean inScope(Path file) {
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589 for (int i = 0; i < paths.length; i++) {
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590 if (paths[i].equals(file)) {
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591 return true;
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592 }
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593 }
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594 return false;
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595 }
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596 }
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597
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598 private static class FileIteratorFilter implements FileIterator {
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599 private final Path.Matcher filter;
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600 private final FileIterator walker;
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601 private boolean didNext = false;
226
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602
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603 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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604 assert fileWalker != null;
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605 assert filterMatcher != null;
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606 filter = filterMatcher;
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607 walker = fileWalker;
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608 }
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609
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610 public void reset() {
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611 walker.reset();
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612 }
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613
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614 public boolean hasNext() {
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615 while (walker.hasNext()) {
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616 walker.next();
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617 if (filter.accept(walker.name())) {
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618 didNext = true;
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619 return true;
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620 }
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621 }
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622 return false;
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623 }
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624
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625 public void next() {
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626 if (didNext) {
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627 didNext = false;
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628 } else {
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629 if (!hasNext()) {
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630 throw new NoSuchElementException();
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631 }
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632 }
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633 }
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634
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635 public Path name() {
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636 return walker.name();
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637 }
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638
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639 public FileInfo file() {
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640 return walker.file();
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641 }
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642
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643 public boolean inScope(Path file) {
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644 return filter.accept(file);
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645 }
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646 }
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647 }