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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 341:75c452fdd76a

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Merging state not detected when there's no conflicts to resolve (no merge/state file)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 17 Nov 2011 07:04:58 +0100
parents f377f833b780
children a0864b2892cd
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.Nodeid;
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37 import org.tmatesoft.hg.internal.ByteArrayChannel;
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38 import org.tmatesoft.hg.internal.Experimental;
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39 import org.tmatesoft.hg.internal.FilterByteChannel;
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40 import org.tmatesoft.hg.internal.ManifestRevision;
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41 import org.tmatesoft.hg.internal.PathScope;
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42 import org.tmatesoft.hg.util.ByteChannel;
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43 import org.tmatesoft.hg.util.CancelledException;
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44 import org.tmatesoft.hg.util.FileInfo;
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45 import org.tmatesoft.hg.util.FileIterator;
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46 import org.tmatesoft.hg.util.FileWalker;
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47 import org.tmatesoft.hg.util.Path;
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48 import org.tmatesoft.hg.util.PathPool;
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49 import org.tmatesoft.hg.util.PathRewrite;
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50 import org.tmatesoft.hg.util.RegularFileInfo;
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52 /**
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53 *
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54 * @author Artem Tikhomirov
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55 * @author TMate Software Ltd.
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56 */
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57 public class HgWorkingCopyStatusCollector {
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59 private final HgRepository repo;
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60 private final FileIterator repoWalker;
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61 private HgDirstate dirstate;
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62 private HgStatusCollector baseRevisionCollector;
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63 private PathPool pathPool;
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64 private ManifestRevision dirstateParentManifest;
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66 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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67 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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68 }
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69
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70 // FIXME document cons
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71 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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72 repo = hgRepo;
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73 repoWalker = hgRepoWalker;
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74 }
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76 /**
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77 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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78 * @param sc may be null
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79 */
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80 public void setBaseRevisionCollector(HgStatusCollector sc) {
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81 baseRevisionCollector = sc;
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82 }
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83
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84 /*package-local*/ PathPool getPathPool() {
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85 if (pathPool == null) {
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86 if (baseRevisionCollector == null) {
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87 pathPool = new PathPool(new PathRewrite.Empty());
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88 } else {
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89 return baseRevisionCollector.getPathPool();
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90 }
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91 }
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92 return pathPool;
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93 }
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94
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95 public void setPathPool(PathPool pathPool) {
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96 this.pathPool = pathPool;
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97 }
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98
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99 /**
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100 * Access to directory state information this collector uses.
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101 * @return directory state holder, never <code>null</code>
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102 */
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103 public HgDirstate getDirstate() {
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104 if (dirstate == null) {
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105 dirstate = repo.loadDirstate(getPathPool());
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106 }
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107 return dirstate;
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108 }
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109
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110 private ManifestRevision getManifest(int changelogLocalRev) {
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111 assert changelogLocalRev >= 0;
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112 ManifestRevision mr;
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113 if (baseRevisionCollector != null) {
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114 mr = baseRevisionCollector.raw(changelogLocalRev);
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115 } else {
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116 mr = new ManifestRevision(null, null);
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117 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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118 }
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119 return mr;
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120 }
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121
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122 private ManifestRevision getDirstateParentManifest() {
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123 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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124 // 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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125 if (dirstateParentManifest == null) {
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126 Nodeid dirstateParent = getDirstate().parents().first();
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127 if (dirstateParent.isNull()) {
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128 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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129 } else {
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130 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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131 dirstateParentManifest = getManifest(changelogLocalRev);
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132 }
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133 }
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134 return dirstateParentManifest;
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135 }
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136
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137 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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138 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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139 public void walk(int baseRevision, HgStatusInspector inspector) {
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140 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
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141 throw new IllegalArgumentException(String.valueOf(baseRevision));
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142 }
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143 ManifestRevision collect = null; // non null indicates we compare against base revision
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144 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
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145 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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146 collect = getManifest(baseRevision);
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147 baseRevFiles = new TreeSet<Path>(collect.files());
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148 }
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149 if (inspector instanceof HgStatusCollector.Record) {
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150 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
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151 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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152 // because the change might be actually in working copy. Nevertheless,
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153 // as long as no nodeids can be provided for WC, seems reasonable to report
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154 // latest known nodeid change (although at the moment this is not used and
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155 // is done mostly not to leave stale initialization in the Record)
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156 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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157 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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158 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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159 } else {
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160 rev1 = baseRevision;
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161 }
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162 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
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163 }
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164 final HgIgnore hgIgnore = repo.getIgnore();
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165 repoWalker.reset();
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166 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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167 final HgDirstate ds = getDirstate();
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168 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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169 while (repoWalker.hasNext()) {
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170 repoWalker.next();
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171 final Path fname = getPathPool().path(repoWalker.name());
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172 FileInfo f = repoWalker.file();
293
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173 Path knownInDirstate;
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174 if (!f.exists()) {
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175 // file coming from iterator doesn't exist.
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176 if ((knownInDirstate = ds.known(fname)) != null) {
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177 // found in dirstate
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178 processed.add(knownInDirstate);
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179 if (ds.checkRemoved(knownInDirstate) == null) {
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180 inspector.missing(knownInDirstate);
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181 } else {
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182 inspector.removed(knownInDirstate);
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183 }
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184 // do not report it as removed later
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185 if (collect != null) {
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186 baseRevFiles.remove(knownInDirstate);
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187 }
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188 } else {
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189 // chances are it was known in baseRevision. We may rely
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190 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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191 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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192 if (collect != null && baseRevFiles.remove(fname)) {
226
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193 inspector.removed(fname);
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194 } else {
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195 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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196 // as unknown. Command-line HG aborts "system can't find the file specified"
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197 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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198 // however, as it's unlikely to get unexisting files from FileIterator, and
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199 // its better to see erroneous file status rather than not to see any (which is too easy
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200 // to overlook), I think unknown() is reasonable approach here
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201 inspector.unknown(fname);
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202 }
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203 }
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204 continue;
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205 }
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206 if ((knownInDirstate = ds.known(fname)) != null) {
226
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207 // tracked file.
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208 // modified, added, removed, clean
293
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209 processed.add(knownInDirstate);
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210 if (collect != null) { // need to check against base revision, not FS file
294
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parents: 293
diff changeset
211 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, 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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parents:
diff changeset
212 } 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
213 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
214 }
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
215 } 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
216 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
217 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
218 } 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
219 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
220 }
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 // 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
222 // 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
223 // 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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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 }
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
226 if (collect != null) {
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
227 for (Path fromBase : baseRevFiles) {
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
228 if (repoWalker.inScope(fromBase)) {
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
229 inspector.removed(fromBase);
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
230 }
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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231 }
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
232 }
293
9774f47d904d Issue 13: Status reports filenames with case other than in dirstate incorrectly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 290
diff changeset
233 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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parents: 282
diff changeset
234 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.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 282
diff changeset
235 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
236 // 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
237 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
238 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
239 // 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
240 if (ds.checkRemoved(m) == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
241 // 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.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 282
diff changeset
242 inspector.missing(m);
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
243 } else {
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 68
diff changeset
244 // 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
245 // 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
246 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.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 282
diff changeset
247 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
248 }
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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249 }
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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250 }
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
251 }
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
252
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 93
diff changeset
253 public HgStatusCollector.Record status(int baseRevision) {
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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parents: 93
diff changeset
254 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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parents:
diff changeset
255 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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parents:
diff changeset
256 return rv;
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
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
259 //********************************************
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
260
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
261
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
262 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
263 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
264 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
265 // either clean or modified
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
266 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
267 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
268 inspector.clean(fname);
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
269 } 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
270 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
271 } 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
272 // 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
273 // 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
274 HgDataFile df = repo.getFileNode(fname);
337
f377f833b780 Issue 17: temporary code to nail down the problem
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 334
diff changeset
275 if (!df.exists()) {
f377f833b780 Issue 17: temporary code to nail down the problem
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 334
diff changeset
276 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 334
diff changeset
277 throw new HgBadStateException(msg);
f377f833b780 Issue 17: temporary code to nail down the problem
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 334
diff changeset
278 }
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
279 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
280 // 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
281 // 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
282 // 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
283 // 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
284 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
285 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
286 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
287 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
288 }
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
289 }
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
290 } 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
291 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
292 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
293 } 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
294 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
295 }
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
296 } 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
297 inspector.removed(fname);
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
298 } 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
299 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
300 }
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
301 }
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
302
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
303 // 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
304 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
305 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
306 Nodeid nid1 = collect.nodeid(fname);
6dbbc53fc46d Use Path instead of plain String for manifest file names
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
307 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
308 HgDirstate.Record r;
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
309 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
310 // 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
311 // 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
312 // 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
313 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
314 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
315 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
316 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
317 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
318 return;
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319 }
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320 } catch (HgDataStreamException ex) {
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321 ex.printStackTrace();
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322 // FIXME report to a mediator, continue status collection
90
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323 }
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324 } else if ((r = getDirstate().checkAdded(fname)) != null) {
290
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325 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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326 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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327 inspector.copied(r.copySource(), fname);
58
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328 return;
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329 }
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330 // fall-through, report as added
59
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331 } else if (getDirstate().checkRemoved(fname) != null) {
58
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332 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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333 return;
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334 }
226
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335 inspector.added(fname);
58
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336 } else {
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337 // was known; check whether clean or modified
285
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338 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
282
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339 if ((r = getDirstate().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
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340 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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341 // same code as in #checkLocalStatusAgainstFile
290
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342 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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343 boolean handled = false;
280
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344 if (timestampEqual && sizeEqual) {
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345 inspector.clean(fname);
282
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346 handled = true;
290
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347 } else if (!sizeEqual && r.size() >= 0) {
280
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348 inspector.modified(fname);
282
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349 handled = true;
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350 } else if (!todoCheckFlagsEqual(f, flags)) {
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351 // seems like flags have changed, no reason to check content further
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352 inspector.modified(fname);
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353 handled = true;
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354 }
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diff changeset
355 if (handled) {
285
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356 baseRevNames.remove(fname); // consumed, processed, handled.
280
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357 return;
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358 }
282
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359 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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360 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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361 // FALL THROUGH
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diff changeset
362 }
282
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diff changeset
363 if (r != null || (r = getDirstate().checkMerged(fname)) != null || (r = getDirstate().checkAdded(fname)) != null) {
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364 // check actual content to see actual changes
280
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365 // 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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366 // either clean or modified
282
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diff changeset
367 HgDataFile fileNode = repo.getFileNode(fname);
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368 if (areTheSame(f, fileNode, nid1)) {
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369 inspector.clean(fname);
58
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370 } else {
282
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371 inspector.modified(fname);
58
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372 }
285
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373 baseRevNames.remove(fname); // consumed, processed, handled.
226
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374 } else if (getDirstate().checkRemoved(fname) != null) {
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375 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
376 inspector.removed(fname);
285
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377 baseRevNames.remove(fname); // consumed, processed, handled.
58
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378 }
226
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diff changeset
379 // only those left in baseRevNames after processing are reported as removed
58
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380 }
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381
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382 // 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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383 // 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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diff changeset
384 // 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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diff changeset
385 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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diff changeset
386 // 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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diff changeset
387 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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388 }
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diff changeset
389
287
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diff changeset
390 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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391 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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392 ByteArrayChannel bac = new ByteArrayChannel();
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diff changeset
393 boolean ioFailed = false;
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diff changeset
394 try {
282
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diff changeset
395 int localRevision = dataFile.getLocalRevision(revision);
157
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diff changeset
396 // need content with metadata striped off - although theoretically chances are metadata may be different,
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diff changeset
397 // WC doesn't have it anyway
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diff changeset
398 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
399 } 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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diff changeset
400 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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diff changeset
401 } catch (HgException ex) {
323
4c7e3ba67213 Exception when analyzing metadata of an empty renamed file
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parents: 314
diff changeset
402 repo.getContext().getLog().warn(getClass(), ex, 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
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diff changeset
403 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
404 }
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
405 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
406 }
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diff changeset
407
287
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diff changeset
408 private boolean areTheSame(FileInfo f, final byte[] data, Path p) {
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diff changeset
409 ReadableByteChannel is = null;
295
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diff changeset
410 class Check implements ByteChannel {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
411 final boolean debug = repo.getContext().getLog().isDebug();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
412 boolean sameSoFar = true;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
413 int x = 0;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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diff changeset
414
295
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diff changeset
415 public int write(ByteBuffer buffer) {
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diff changeset
416 for (int i = buffer.remaining(); i > 0; i--, x++) {
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417 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
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418 if (debug) {
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419 byte[] xx = new byte[15];
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420 if (buffer.position() > 5) {
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421 buffer.position(buffer.position() - 5);
117
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422 }
334
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423 buffer.get(xx, 0, min(xx.length, i-1 /*-1 for the one potentially read at buffer.get in if() */));
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424 String exp;
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425 if (x < data.length) {
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426 exp = new String(data, max(0, x - 4), min(data.length - x, 20));
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427 } else {
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428 int offset = max(0, x - 4);
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diff changeset
429 exp = new String(data, offset, min(data.length - offset, 20));
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430 }
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431 repo.getContext().getLog().debug(getClass(), "expected >>%s<< but got >>%s<<", exp, new String(xx));
117
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432 }
295
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433 sameSoFar = false;
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434 break;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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435 }
117
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436 }
295
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437 buffer.position(buffer.limit()); // mark as read
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438 return buffer.limit();
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439 }
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440
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441 public boolean sameSoFar() {
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442 return sameSoFar;
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443 }
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444 public boolean ultimatelyTheSame() {
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445 return sameSoFar && x == data.length;
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446 }
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447 };
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448 Check check = new Check();
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449 try {
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450 is = f.newInputChannel();
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451 ByteBuffer fb = ByteBuffer.allocate(min(1 + data.length * 2 /*to fit couple of lines appended; never zero*/, 8192));
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452 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
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453 while (is.read(fb) != -1 && check.sameSoFar()) {
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454 fb.flip();
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455 filters.write(fb);
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456 fb.compact();
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457 }
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458 return check.ultimatelyTheSame();
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459 } catch (CancelledException ex) {
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460 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
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461 return check.ultimatelyTheSame();
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462 } catch (IOException ex) {
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463 repo.getContext().getLog().warn(getClass(), ex, null);
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464 } finally {
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465 if (is != null) {
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466 try {
287
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467 is.close();
295
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468 } catch (IOException ex) {
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469 repo.getContext().getLog().info(getClass(), ex, null);
117
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470 }
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471 }
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472 }
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473 return false;
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474 }
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475
287
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476 private static boolean todoCheckFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
58
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477 // FIXME implement
280
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478 return true;
58
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479 }
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480
229
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481 /**
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482 * 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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483 * traverse only relevant part of working copy on the filesystem.
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484 *
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485 * @param hgRepo repository
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486 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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487 *
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488 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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489 */
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490 @Experimental(reason="Provisional API")
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491 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
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492 ArrayList<Path> f = new ArrayList<Path>(5);
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493 ArrayList<Path> d = new ArrayList<Path>(5);
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494 for (Path p : paths) {
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diff changeset
495 if (p.isDirectory()) {
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496 d.add(p);
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diff changeset
497 } else {
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498 f.add(p);
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499 }
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500 }
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501 // final Path[] dirs = f.toArray(new Path[d.size()]);
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502 if (d.isEmpty()) {
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diff changeset
503 final Path[] files = f.toArray(new Path[f.size()]);
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504 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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505 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
506 }
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diff changeset
507 //
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508
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diff changeset
509 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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diff changeset
510 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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diff changeset
511 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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diff changeset
512 }
229
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513
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514 /**
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diff changeset
515 * Configure collector object to calculate status for matching files only.
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diff changeset
516 * This method may be less effective than explicit list of files as it iterates over whole repository
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diff changeset
517 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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518 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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diff changeset
519 *
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diff changeset
520 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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diff changeset
521 */
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diff changeset
522 @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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523 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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diff changeset
524 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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diff changeset
525 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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diff changeset
526 // 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
527 // 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
528 // 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
529 // 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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530 // 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
531 // method above/
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diff changeset
532 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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diff changeset
533 }
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534
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535 private static class FileListIterator implements FileIterator {
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536 private final File dir;
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537 private final Path[] paths;
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538 private int index;
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539 private RegularFileInfo nextFile;
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540
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541 public FileListIterator(File startDir, Path... files) {
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542 dir = startDir;
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543 paths = files;
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544 reset();
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545 }
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546
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547 public void reset() {
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548 index = -1;
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549 nextFile = new RegularFileInfo();
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550 }
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551
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552 public boolean hasNext() {
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553 return paths.length > 0 && index < paths.length-1;
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554 }
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555
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556 public void next() {
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557 index++;
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558 if (index == paths.length) {
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559 throw new NoSuchElementException();
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560 }
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561 nextFile.init(new File(dir, paths[index].toString()));
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562 }
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563
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564 public Path name() {
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565 return paths[index];
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566 }
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567
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568 public FileInfo file() {
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569 return nextFile;
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570 }
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571
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572 public boolean inScope(Path file) {
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573 for (int i = 0; i < paths.length; i++) {
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574 if (paths[i].equals(file)) {
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575 return true;
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576 }
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577 }
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578 return false;
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579 }
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580 }
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581
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582 private static class FileIteratorFilter implements FileIterator {
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583 private final Path.Matcher filter;
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584 private final FileIterator walker;
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585 private boolean didNext = false;
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586
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587 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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588 assert fileWalker != null;
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589 assert filterMatcher != null;
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590 filter = filterMatcher;
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591 walker = fileWalker;
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592 }
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593
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594 public void reset() {
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595 walker.reset();
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596 }
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597
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598 public boolean hasNext() {
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599 while (walker.hasNext()) {
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600 walker.next();
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601 if (filter.accept(walker.name())) {
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602 didNext = true;
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603 return true;
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604 }
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605 }
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606 return false;
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607 }
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608
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609 public void next() {
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610 if (didNext) {
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611 didNext = false;
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612 } else {
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613 if (!hasNext()) {
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614 throw new NoSuchElementException();
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615 }
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616 }
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617 }
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618
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619 public Path name() {
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620 return walker.name();
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621 }
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622
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623 public FileInfo file() {
226
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624 return walker.file();
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625 }
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626
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627 public boolean inScope(Path file) {
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628 return filter.accept(file);
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629 }
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630 }
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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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631 }