annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 334:15e1961719f2

Investigate sporadic BufferUnderflowException
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 09 Nov 2011 05:22:26 +0100
parents 4c7e3ba67213
children f377f833b780
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.HgDataStreamException;
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34 import org.tmatesoft.hg.core.HgException;
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35 import org.tmatesoft.hg.core.Nodeid;
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36 import org.tmatesoft.hg.internal.ByteArrayChannel;
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37 import org.tmatesoft.hg.internal.Experimental;
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38 import org.tmatesoft.hg.internal.FilterByteChannel;
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39 import org.tmatesoft.hg.internal.ManifestRevision;
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40 import org.tmatesoft.hg.internal.PathScope;
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41 import org.tmatesoft.hg.util.ByteChannel;
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42 import org.tmatesoft.hg.util.CancelledException;
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43 import org.tmatesoft.hg.util.FileInfo;
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44 import org.tmatesoft.hg.util.FileIterator;
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45 import org.tmatesoft.hg.util.FileWalker;
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46 import org.tmatesoft.hg.util.Path;
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47 import org.tmatesoft.hg.util.PathPool;
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48 import org.tmatesoft.hg.util.PathRewrite;
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49 import org.tmatesoft.hg.util.RegularFileInfo;
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51 /**
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52 *
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53 * @author Artem Tikhomirov
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54 * @author TMate Software Ltd.
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55 */
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56 public class HgWorkingCopyStatusCollector {
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58 private final HgRepository repo;
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59 private final FileIterator repoWalker;
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60 private HgDirstate dirstate;
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61 private HgStatusCollector baseRevisionCollector;
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62 private PathPool pathPool;
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63 private ManifestRevision dirstateParentManifest;
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64
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65 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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66 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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67 }
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68
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69 // FIXME document cons
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70 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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71 repo = hgRepo;
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72 repoWalker = hgRepoWalker;
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73 }
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75 /**
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76 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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77 * @param sc may be null
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78 */
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79 public void setBaseRevisionCollector(HgStatusCollector sc) {
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80 baseRevisionCollector = sc;
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81 }
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83 /*package-local*/ PathPool getPathPool() {
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84 if (pathPool == null) {
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85 if (baseRevisionCollector == null) {
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86 pathPool = new PathPool(new PathRewrite.Empty());
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87 } else {
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88 return baseRevisionCollector.getPathPool();
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89 }
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90 }
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91 return pathPool;
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92 }
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93
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94 public void setPathPool(PathPool pathPool) {
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95 this.pathPool = pathPool;
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96 }
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97
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98 /**
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99 * Access to directory state information this collector uses.
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100 * @return directory state holder, never <code>null</code>
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101 */
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102 public HgDirstate getDirstate() {
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103 if (dirstate == null) {
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104 dirstate = repo.loadDirstate(getPathPool());
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105 }
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106 return dirstate;
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107 }
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108
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109 private ManifestRevision getManifest(int changelogLocalRev) {
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110 assert changelogLocalRev >= 0;
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111 ManifestRevision mr;
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112 if (baseRevisionCollector != null) {
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113 mr = baseRevisionCollector.raw(changelogLocalRev);
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114 } else {
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115 mr = new ManifestRevision(null, null);
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116 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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117 }
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118 return mr;
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119 }
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120
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121 private ManifestRevision getDirstateParentManifest() {
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122 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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123 // 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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124 if (dirstateParentManifest == null) {
284
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125 Nodeid dirstateParent = getDirstate().parents().first();
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126 if (dirstateParent.isNull()) {
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127 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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128 } else {
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129 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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130 dirstateParentManifest = getManifest(changelogLocalRev);
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131 }
282
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132 }
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133 return dirstateParentManifest;
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134 }
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135
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136 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
275
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137 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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138 public void walk(int baseRevision, HgStatusInspector inspector) {
282
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139 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
218
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140 throw new IllegalArgumentException(String.valueOf(baseRevision));
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141 }
282
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142 ManifestRevision collect = null; // non null indicates we compare against base revision
285
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143 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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144 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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145 collect = getManifest(baseRevision);
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146 baseRevFiles = new TreeSet<Path>(collect.files());
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147 }
94
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148 if (inspector instanceof HgStatusCollector.Record) {
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149 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
282
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150 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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151 // because the change might be actually in working copy. Nevertheless,
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152 // as long as no nodeids can be provided for WC, seems reasonable to report
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153 // latest known nodeid change (although at the moment this is not used and
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154 // is done mostly not to leave stale initialization in the Record)
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155 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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156 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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157 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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158 } else {
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159 rev1 = baseRevision;
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160 }
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161 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
68
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162 }
282
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163 final HgIgnore hgIgnore = repo.getIgnore();
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164 repoWalker.reset();
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165 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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166 final HgDirstate ds = getDirstate();
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167 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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168 while (repoWalker.hasNext()) {
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169 repoWalker.next();
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170 final Path fname = getPathPool().path(repoWalker.name());
287
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171 FileInfo f = repoWalker.file();
293
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172 Path knownInDirstate;
226
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173 if (!f.exists()) {
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174 // file coming from iterator doesn't exist.
293
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175 if ((knownInDirstate = ds.known(fname)) != null) {
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176 // found in dirstate
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177 processed.add(knownInDirstate);
294
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178 if (ds.checkRemoved(knownInDirstate) == null) {
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179 inspector.missing(knownInDirstate);
226
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180 } else {
294
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181 inspector.removed(knownInDirstate);
226
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182 }
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183 // do not report it as removed later
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184 if (collect != null) {
294
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185 baseRevFiles.remove(knownInDirstate);
226
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186 }
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187 } else {
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188 // chances are it was known in baseRevision. We may rely
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189 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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190 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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191 if (collect != null && baseRevFiles.remove(fname)) {
226
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192 inspector.removed(fname);
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193 } else {
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194 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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195 // as unknown. Command-line HG aborts "system can't find the file specified"
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196 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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197 // however, as it's unlikely to get unexisting files from FileIterator, and
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198 // its better to see erroneous file status rather than not to see any (which is too easy
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199 // to overlook), I think unknown() is reasonable approach here
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200 inspector.unknown(fname);
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201 }
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202 }
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203 continue;
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204 }
293
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205 if ((knownInDirstate = ds.known(fname)) != null) {
226
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206 // tracked file.
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207 // modified, added, removed, clean
293
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208 processed.add(knownInDirstate);
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209 if (collect != null) { // need to check against base revision, not FS file
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210 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, knownInDirstate, f, inspector);
58
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diff changeset
211 } else {
294
32890bab7209 Issue 13: Report filenames as they are known in repository rather than from file system
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parents: 293
diff changeset
212 checkLocalStatusAgainstFile(knownInDirstate, f, 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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diff changeset
213 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
214 } else {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
215 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
216 inspector.ignored(fname);
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
217 } else {
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
218 inspector.unknown(fname);
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
219 }
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
220 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
221 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
222 // yield two statuses for the same file)
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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223 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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224 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
225 if (collect != null) {
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
226 for (Path fromBase : baseRevFiles) {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
227 if (repoWalker.inScope(fromBase)) {
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
228 inspector.removed(fromBase);
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
229 }
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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230 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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231 }
293
9774f47d904d Issue 13: Status reports filenames with case other than in dirstate incorrectly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 290
diff changeset
232 knownEntries.removeAll(processed);
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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diff changeset
233 for (Path m : knownEntries) {
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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parents: 282
diff changeset
234 if (!repoWalker.inScope(m)) {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
235 // do not report as missing/removed those FileIterator doesn't care about.
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
236 continue;
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
237 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
238 // missing known file from a working dir
293
9774f47d904d Issue 13: Status reports filenames with case other than in dirstate incorrectly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 290
diff changeset
239 if (ds.checkRemoved(m) == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
diff changeset
240 // not removed from the repository = 'deleted'
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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parents: 282
diff changeset
241 inspector.missing(m);
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
diff changeset
242 } else {
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
243 // 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
244 // if we check against non-tip revision, do not report files that were added past that revision and now removed.
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
245 if (collect == null || baseRevFiles.contains(m)) {
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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parents: 282
diff changeset
246 inspector.removed(m);
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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parents: 74
diff changeset
247 }
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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248 }
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249 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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250 }
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parents:
diff changeset
251
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
252 public HgStatusCollector.Record status(int baseRevision) {
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
253 HgStatusCollector.Record rv = new HgStatusCollector.Record();
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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diff changeset
254 walk(baseRevision, rv);
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
255 return rv;
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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256 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
257
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
258 //********************************************
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diff changeset
259
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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parents:
diff changeset
260
287
ed6b74a58c66 Use FileInfo abstraction with necessary subset of File functionality instead of File to facilitate other effective file system iterators
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 285
diff changeset
261 private void checkLocalStatusAgainstFile(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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parents:
diff changeset
262 HgDirstate.Record r;
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
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parents: 58
diff changeset
263 if ((r = getDirstate().checkNormal(fname)) != null) {
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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parents:
diff changeset
264 // either clean or modified
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
265 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
266 if (timestampEqual && sizeEqual) {
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
267 inspector.clean(fname);
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
268 } else if (!sizeEqual && r.size() >= 0) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
269 inspector.modified(fname);
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
270 } else {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
271 // 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 117
diff changeset
272 // check actual content to avoid false modified files
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 117
diff changeset
273 HgDataFile df = repo.getFileNode(fname);
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
274 Nodeid rev = getDirstateParentManifest().nodeid(fname);
314
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 295
diff changeset
275 // rev might be null here if fname comes to dirstate as a result of a merge operation
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 295
diff changeset
276 // where one of the parents (first parent) had no fname file, but second parent had.
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 295
diff changeset
277 // E.g. fork revision 3, revision 4 gets .hgtags, few modifications and merge(3,12)
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 295
diff changeset
278 // see Issue 14 for details
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 295
diff changeset
279 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 117
diff changeset
280 inspector.modified(df.getPath());
180
42fe9a94b9d0 Report files as clean when no difference but timestamp found
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
281 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
282 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 117
diff changeset
283 }
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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parents:
diff changeset
284 }
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
285 } else if ((r = getDirstate().checkAdded(fname)) != null) {
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 287
diff changeset
286 if (r.copySource() == null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
287 inspector.added(fname);
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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parents:
diff changeset
288 } else {
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 287
diff changeset
289 inspector.copied(r.copySource(), fname);
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
290 }
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 58
diff changeset
291 } else if ((r = getDirstate().checkRemoved(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
292 inspector.removed(fname);
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
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parents: 58
diff changeset
293 } else if ((r = getDirstate().checkMerged(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
294 inspector.modified(fname);
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
295 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
296 }
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
297
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
298 // XXX refactor checkLocalStatus methods in more OO way
287
ed6b74a58c66 Use FileInfo abstraction with necessary subset of File functionality instead of File to facilitate other effective file system iterators
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 285
diff changeset
299 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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parents:
diff changeset
300 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
301 Nodeid nid1 = collect.nodeid(fname);
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
302 HgManifest.Flags flags = collect.flags(fname);
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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parents:
diff changeset
303 HgDirstate.Record r;
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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parents:
diff changeset
304 if (nid1 == null) {
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
305 // normal: added?
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
306 // added: not known at the time of baseRevision, shall report
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
307 // merged: was not known, report as added?
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 89
diff changeset
308 if ((r = getDirstate().checkNormal(fname)) != null) {
157
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
309 try {
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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parents: 148
diff changeset
310 Path origin = HgStatusCollector.getOriginIfCopy(repo, fname, baseRevNames, baseRevision);
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
311 if (origin != null) {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
312 inspector.copied(getPathPool().path(origin), fname);
157
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
313 return;
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
314 }
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
315 } catch (HgDataStreamException 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
316 ex.printStackTrace();
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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
317 // FIXME report to a mediator, continue status collection
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 89
diff changeset
318 }
a95c700408a9 Correctly report copy/rename events for rev..working copy case
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319 } else if ((r = getDirstate().checkAdded(fname)) != null) {
290
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320 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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321 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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322 inspector.copied(r.copySource(), fname);
58
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323 return;
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324 }
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325 // fall-through, report as added
59
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326 } else if (getDirstate().checkRemoved(fname) != null) {
58
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327 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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328 return;
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329 }
226
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330 inspector.added(fname);
58
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331 } else {
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332 // was known; check whether clean or modified
285
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333 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
282
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334 if ((r = getDirstate().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
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335 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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336 // same code as in #checkLocalStatusAgainstFile
290
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337 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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338 boolean handled = false;
280
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339 if (timestampEqual && sizeEqual) {
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340 inspector.clean(fname);
282
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341 handled = true;
290
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342 } else if (!sizeEqual && r.size() >= 0) {
280
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343 inspector.modified(fname);
282
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344 handled = true;
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345 } else if (!todoCheckFlagsEqual(f, flags)) {
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346 // seems like flags have changed, no reason to check content further
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347 inspector.modified(fname);
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348 handled = true;
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349 }
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350 if (handled) {
285
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351 baseRevNames.remove(fname); // consumed, processed, handled.
280
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352 return;
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353 }
282
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354 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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355 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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356 // FALL THROUGH
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357 }
282
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358 if (r != null || (r = getDirstate().checkMerged(fname)) != null || (r = getDirstate().checkAdded(fname)) != null) {
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359 // check actual content to see actual changes
280
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360 // 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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361 // either clean or modified
282
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diff changeset
362 HgDataFile fileNode = repo.getFileNode(fname);
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363 if (areTheSame(f, fileNode, nid1)) {
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364 inspector.clean(fname);
58
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365 } else {
282
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366 inspector.modified(fname);
58
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367 }
285
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368 baseRevNames.remove(fname); // consumed, processed, handled.
226
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369 } else if (getDirstate().checkRemoved(fname) != null) {
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370 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
371 inspector.removed(fname);
285
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372 baseRevNames.remove(fname); // consumed, processed, handled.
58
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373 }
226
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374 // only those left in baseRevNames after processing are reported as removed
58
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375 }
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376
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377 // 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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378 // 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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379 // 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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380 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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381 // 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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382 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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383 }
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384
287
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diff changeset
385 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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386 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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diff changeset
387 ByteArrayChannel bac = new ByteArrayChannel();
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diff changeset
388 boolean ioFailed = false;
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diff changeset
389 try {
282
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diff changeset
390 int localRevision = dataFile.getLocalRevision(revision);
157
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391 // need content with metadata striped off - although theoretically chances are metadata may be different,
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diff changeset
392 // WC doesn't have it anyway
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diff changeset
393 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
394 } 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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395 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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diff changeset
396 } catch (HgException ex) {
323
4c7e3ba67213 Exception when analyzing metadata of an empty renamed file
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parents: 314
diff changeset
397 repo.getContext().getLog().warn(getClass(), ex, null);
157
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diff changeset
398 ioFailed = true;
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
399 }
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
400 return !ioFailed && areTheSame(f, bac.toArray(), dataFile.getPath());
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
401 }
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402
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diff changeset
403 private boolean areTheSame(FileInfo f, final byte[] data, Path p) {
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diff changeset
404 ReadableByteChannel is = null;
295
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diff changeset
405 class Check implements ByteChannel {
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diff changeset
406 final boolean debug = repo.getContext().getLog().isDebug();
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diff changeset
407 boolean sameSoFar = true;
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diff changeset
408 int x = 0;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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409
295
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diff changeset
410 public int write(ByteBuffer buffer) {
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diff changeset
411 for (int i = buffer.remaining(); i > 0; i--, x++) {
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diff changeset
412 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
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diff changeset
413 if (debug) {
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diff changeset
414 byte[] xx = new byte[15];
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diff changeset
415 if (buffer.position() > 5) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
416 buffer.position(buffer.position() - 5);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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diff changeset
417 }
334
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418 buffer.get(xx, 0, min(xx.length, i-1 /*-1 for the one potentially read at buffer.get in if() */));
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diff changeset
419 String exp;
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420 if (x < data.length) {
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diff changeset
421 exp = new String(data, max(0, x - 4), min(data.length - x, 20));
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diff changeset
422 } else {
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diff changeset
423 int offset = max(0, x - 4);
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diff changeset
424 exp = new String(data, offset, min(data.length - offset, 20));
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425 }
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diff changeset
426 repo.getContext().getLog().debug(getClass(), "expected >>%s<< but got >>%s<<", exp, new String(xx));
117
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427 }
295
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diff changeset
428 sameSoFar = false;
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diff changeset
429 break;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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430 }
117
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431 }
295
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432 buffer.position(buffer.limit()); // mark as read
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433 return buffer.limit();
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434 }
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435
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436 public boolean sameSoFar() {
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437 return sameSoFar;
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diff changeset
438 }
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439 public boolean ultimatelyTheSame() {
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440 return sameSoFar && x == data.length;
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441 }
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442 };
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443 Check check = new Check();
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444 try {
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445 is = f.newInputChannel();
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446 ByteBuffer fb = ByteBuffer.allocate(min(1 + data.length * 2 /*to fit couple of lines appended; never zero*/, 8192));
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447 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
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448 while (is.read(fb) != -1 && check.sameSoFar()) {
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449 fb.flip();
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450 filters.write(fb);
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451 fb.compact();
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diff changeset
452 }
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453 return check.ultimatelyTheSame();
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454 } catch (CancelledException ex) {
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455 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
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456 return check.ultimatelyTheSame();
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457 } catch (IOException ex) {
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458 repo.getContext().getLog().warn(getClass(), ex, null);
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459 } finally {
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diff changeset
460 if (is != null) {
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461 try {
287
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462 is.close();
295
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463 } catch (IOException ex) {
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464 repo.getContext().getLog().info(getClass(), ex, null);
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465 }
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diff changeset
466 }
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467 }
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468 return false;
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469 }
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470
287
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471 private static boolean todoCheckFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
58
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472 // FIXME implement
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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473 return true;
58
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474 }
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475
229
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476 /**
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477 * 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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478 * traverse only relevant part of working copy on the filesystem.
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479 *
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480 * @param hgRepo repository
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481 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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482 *
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483 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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484 */
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485 @Experimental(reason="Provisional API")
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486 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
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487 ArrayList<Path> f = new ArrayList<Path>(5);
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488 ArrayList<Path> d = new ArrayList<Path>(5);
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489 for (Path p : paths) {
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490 if (p.isDirectory()) {
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491 d.add(p);
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492 } else {
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493 f.add(p);
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494 }
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495 }
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496 // final Path[] dirs = f.toArray(new Path[d.size()]);
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497 if (d.isEmpty()) {
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diff changeset
498 final Path[] files = f.toArray(new Path[f.size()]);
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diff changeset
499 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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500 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
501 }
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diff changeset
502 //
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503
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504 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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diff changeset
505 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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506 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
507 }
229
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diff changeset
508
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diff changeset
509 /**
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diff changeset
510 * Configure collector object to calculate status for matching files only.
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diff changeset
511 * This method may be less effective than explicit list of files as it iterates over whole repository
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diff changeset
512 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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513 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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diff changeset
514 *
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515 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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diff changeset
516 */
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diff changeset
517 @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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diff changeset
518 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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diff changeset
519 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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diff changeset
520 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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diff changeset
521 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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diff changeset
522 // 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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diff changeset
523 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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diff changeset
524 // 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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diff changeset
525 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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diff changeset
526 // method above/
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diff changeset
527 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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diff changeset
528 }
226
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diff changeset
529
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diff changeset
530 private static class FileListIterator implements FileIterator {
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diff changeset
531 private final File dir;
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532 private final Path[] paths;
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diff changeset
533 private int index;
287
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diff changeset
534 private RegularFileInfo nextFile;
226
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535
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536 public FileListIterator(File startDir, Path... files) {
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537 dir = startDir;
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538 paths = files;
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539 reset();
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540 }
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541
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542 public void reset() {
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543 index = -1;
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544 nextFile = new RegularFileInfo();
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545 }
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546
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547 public boolean hasNext() {
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548 return paths.length > 0 && index < paths.length-1;
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549 }
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550
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551 public void next() {
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552 index++;
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553 if (index == paths.length) {
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554 throw new NoSuchElementException();
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555 }
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556 nextFile.init(new File(dir, paths[index].toString()));
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557 }
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558
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559 public Path name() {
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560 return paths[index];
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561 }
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562
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563 public FileInfo file() {
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564 return nextFile;
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565 }
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566
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567 public boolean inScope(Path file) {
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568 for (int i = 0; i < paths.length; i++) {
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569 if (paths[i].equals(file)) {
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570 return true;
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571 }
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572 }
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573 return false;
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574 }
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575 }
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576
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577 private static class FileIteratorFilter implements FileIterator {
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578 private final Path.Matcher filter;
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579 private final FileIterator walker;
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580 private boolean didNext = false;
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581
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582 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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583 assert fileWalker != null;
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584 assert filterMatcher != null;
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585 filter = filterMatcher;
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586 walker = fileWalker;
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587 }
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588
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589 public void reset() {
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590 walker.reset();
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591 }
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592
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593 public boolean hasNext() {
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594 while (walker.hasNext()) {
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595 walker.next();
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596 if (filter.accept(walker.name())) {
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597 didNext = true;
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598 return true;
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599 }
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600 }
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601 return false;
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602 }
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603
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604 public void next() {
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605 if (didNext) {
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606 didNext = false;
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607 } else {
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608 if (!hasNext()) {
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609 throw new NoSuchElementException();
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610 }
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611 }
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612 }
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613
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614 public Path name() {
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615 return walker.name();
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616 }
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617
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618 public FileInfo file() {
226
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619 return walker.file();
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620 }
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621
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622 public boolean inScope(Path file) {
229
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623 return filter.accept(file);
226
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624 }
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625 }
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626 }