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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 282:e51dd9a14b6f

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Yet another WC status fix, where dirstate parent and base revision are treated right (dirstate parent other than tip and explicit baseRevision are not the same)
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sat, 03 Sep 2011 01:21:03 +0200
parents 35125450c804
children 7232b94f2ae3
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.FileInputStream;
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25 import java.io.IOException;
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26 import java.nio.ByteBuffer;
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27 import java.nio.channels.FileChannel;
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28 import java.util.ArrayList;
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29 import java.util.Collections;
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30 import java.util.NoSuchElementException;
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31 import java.util.Set;
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32 import java.util.TreeSet;
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33
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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.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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50 /**
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51 *
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52 * @author Artem Tikhomirov
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53 * @author TMate Software Ltd.
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54 */
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55 public class HgWorkingCopyStatusCollector {
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57 private final HgRepository repo;
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58 private final FileIterator repoWalker;
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59 private HgDirstate dirstate;
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60 private HgStatusCollector baseRevisionCollector;
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61 private PathPool pathPool;
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62 private ManifestRevision dirstateParentManifest;
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64 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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65 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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66 }
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67
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68 // FIXME document cons
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69 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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70 repo = hgRepo;
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71 repoWalker = hgRepoWalker;
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72 }
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74 /**
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75 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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76 * @param sc may be null
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77 */
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78 public void setBaseRevisionCollector(HgStatusCollector sc) {
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79 baseRevisionCollector = sc;
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80 }
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81
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82 /*package-local*/ PathPool getPathPool() {
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83 if (pathPool == null) {
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84 if (baseRevisionCollector == null) {
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85 pathPool = new PathPool(new PathRewrite.Empty());
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86 } else {
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87 return baseRevisionCollector.getPathPool();
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88 }
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89 }
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90 return pathPool;
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91 }
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93 public void setPathPool(PathPool pathPool) {
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94 this.pathPool = pathPool;
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95 }
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96
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98 private HgDirstate getDirstate() {
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99 if (dirstate == null) {
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100 dirstate = repo.loadDirstate();
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101 }
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102 return dirstate;
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103 }
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104
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105 private ManifestRevision getManifest(int changelogLocalRev) {
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106 ManifestRevision mr;
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107 if (baseRevisionCollector != null) {
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108 mr = baseRevisionCollector.raw(changelogLocalRev);
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109 } else {
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110 mr = new ManifestRevision(null, null);
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111 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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112 }
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113 return mr;
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114 }
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115
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116 private ManifestRevision getDirstateParentManifest() {
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117 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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118 // 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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119 if (dirstateParentManifest == null) {
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120 Nodeid dirstateParent = getDirstate().parents()[0];
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121 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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122 dirstateParentManifest = getManifest(changelogLocalRev);
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123 }
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124 return dirstateParentManifest;
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125 }
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126
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127 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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128 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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129 public void walk(int baseRevision, HgStatusInspector inspector) {
282
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130 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
218
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131 throw new IllegalArgumentException(String.valueOf(baseRevision));
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132 }
282
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133 ManifestRevision collect = null; // non null indicates we compare against base revision
226
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134 Set<String> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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135 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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136 collect = getManifest(baseRevision);
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137 baseRevFiles = new TreeSet<String>(collect.files());
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138 }
94
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139 if (inspector instanceof HgStatusCollector.Record) {
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140 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
282
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141 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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142 // because the change might be actually in working copy. Nevertheless,
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143 // as long as no nodeids can be provided for WC, seems reasonable to report
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144 // latest known nodeid change (although at the moment this is not used and
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145 // is done mostly not to leave stale initialization in the Record)
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146 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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147 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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148 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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149 } else {
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150 rev1 = baseRevision;
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151 }
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152 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
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153 }
282
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154 final HgIgnore hgIgnore = repo.getIgnore();
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155 TreeSet<String> knownEntries = getDirstate().all();
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156 repoWalker.reset();
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157 final PathPool pp = getPathPool();
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158 while (repoWalker.hasNext()) {
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159 repoWalker.next();
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160 final Path fname = pp.path(repoWalker.name());
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161 File f = repoWalker.file();
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162 if (!f.exists()) {
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163 // file coming from iterator doesn't exist.
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164 if (knownEntries.remove(fname.toString())) {
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165 if (getDirstate().checkRemoved(fname) == null) {
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166 inspector.missing(fname);
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167 } else {
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168 inspector.removed(fname);
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169 }
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170 // do not report it as removed later
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171 if (collect != null) {
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172 baseRevFiles.remove(fname.toString());
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173 }
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174 } else {
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175 // chances are it was known in baseRevision. We may rely
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176 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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177 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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178 if (collect != null && baseRevFiles.remove(fname.toString())) {
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179 inspector.removed(fname);
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180 } else {
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181 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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182 // as unknown. Command-line HG aborts "system can't find the file specified"
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183 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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184 // however, as it's unlikely to get unexisting files from FileIterator, and
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185 // its better to see erroneous file status rather than not to see any (which is too easy
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186 // to overlook), I think unknown() is reasonable approach here
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187 inspector.unknown(fname);
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188 }
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189 }
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190 continue;
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191 }
229
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192 assert f.isFile();
226
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193 if (knownEntries.remove(fname.toString())) {
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194 // tracked file.
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195 // modified, added, removed, clean
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196 if (collect != null) { // need to check against base revision, not FS file
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197 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, fname, f, inspector);
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198 } else {
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199 checkLocalStatusAgainstFile(fname, f, inspector);
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200 }
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201 } else {
226
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202 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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203 inspector.ignored(fname);
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204 } else {
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205 inspector.unknown(fname);
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206 }
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207 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
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208 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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209 // yield two statuses for the same file)
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210 }
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211 }
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212 if (collect != null) {
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213 for (String r : baseRevFiles) {
226
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214 final Path fromBase = pp.path(r);
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diff changeset
215 if (repoWalker.inScope(fromBase)) {
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diff changeset
216 inspector.removed(fromBase);
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diff changeset
217 }
58
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218 }
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219 }
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220 for (String m : knownEntries) {
226
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diff changeset
221 if (!repoWalker.inScope(pp.path(m))) {
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222 // do not report as missing/removed those FileIterator doesn't care about.
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diff changeset
223 continue;
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diff changeset
224 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
225 // missing known file from a working dir
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
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diff changeset
226 if (getDirstate().checkRemoved(m) == null) {
74
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diff changeset
227 // not removed from the repository = 'deleted'
93
d55d4eedfc57 Switch to Path instead of String in filenames returned by various status operations
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228 inspector.missing(pp.path(m));
74
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diff changeset
229 } else {
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diff changeset
230 // removed from the repo
76
658fa6b3a371 Fixed a defect when a file added and removed past some revision was reported as R for status against that rev
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231 // if we check against non-tip revision, do not report files that were added past that revision and now removed.
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diff changeset
232 if (collect == null || baseRevFiles.contains(m)) {
93
d55d4eedfc57 Switch to Path instead of String in filenames returned by various status operations
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diff changeset
233 inspector.removed(pp.path(m));
76
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234 }
58
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235 }
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236 }
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237 }
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238
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
239 public HgStatusCollector.Record status(int baseRevision) {
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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240 HgStatusCollector.Record rv = new HgStatusCollector.Record();
58
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241 walk(baseRevision, rv);
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242 return rv;
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243 }
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244
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245 //********************************************
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246
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247
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
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248 private void checkLocalStatusAgainstFile(Path fname, File 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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249 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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250 if ((r = getDirstate().checkNormal(fname)) != null) {
58
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251 // either clean or modified
280
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252 final boolean timestampEqual = getFileModificationTime(f) == r.time, sizeEqual = r.size == f.length();
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diff changeset
253 if (timestampEqual && sizeEqual) {
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254 inspector.clean(fname);
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255 } else if (!sizeEqual && r.size >= 0) {
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diff changeset
256 inspector.modified(fname);
58
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257 } else {
280
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258 // size is the same or unknown, and, perhaps, different timestamp
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
259 // check actual content to avoid false modified files
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diff changeset
260 HgDataFile df = repo.getFileNode(fname);
282
e51dd9a14b6f Yet another WC status fix, where dirstate parent and base revision are treated right (dirstate parent other than tip and explicit baseRevision are not the same)
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diff changeset
261 Nodeid rev = getDirstateParentManifest().nodeid(fname.toString());
e51dd9a14b6f Yet another WC status fix, where dirstate parent and base revision are treated right (dirstate parent other than tip and explicit baseRevision are not the same)
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diff changeset
262 if (!areTheSame(f, df, rev)) {
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
263 inspector.modified(df.getPath());
180
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
264 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
265 inspector.clean(df.getPath());
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
266 }
58
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267 }
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diff changeset
268 } else if ((r = getDirstate().checkAdded(fname)) != null) {
58
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269 if (r.name2 == null) {
280
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diff changeset
270 inspector.added(fname);
58
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271 } else {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
272 inspector.copied(getPathPool().path(r.name2), fname);
58
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273 }
59
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diff changeset
274 } else if ((r = getDirstate().checkRemoved(fname)) != null) {
280
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diff changeset
275 inspector.removed(fname);
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276 } else if ((r = getDirstate().checkMerged(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
277 inspector.modified(fname);
58
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278 }
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279 }
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diff changeset
280
280
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diff changeset
281 // return mtime analog, directly comparable to dirstate's mtime.
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diff changeset
282 private static int getFileModificationTime(File f) {
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diff changeset
283 return (int) (f.lastModified() / 1000);
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diff changeset
284 }
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diff changeset
285
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
286 // XXX refactor checkLocalStatus methods in more OO way
248
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 246
diff changeset
287 private void checkLocalStatusAgainstBaseRevision(Set<String> baseRevNames, ManifestRevision collect, int baseRevision, Path fname, File 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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diff changeset
288 // fname is in the dirstate, either Normal, Added, Removed or Merged
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
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diff changeset
289 Nodeid nid1 = collect.nodeid(fname.toString());
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
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diff changeset
290 String flags = collect.flags(fname.toString());
58
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diff changeset
291 HgDirstate.Record r;
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diff changeset
292 if (nid1 == null) {
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diff changeset
293 // normal: added?
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diff changeset
294 // added: not known at the time of baseRevision, shall report
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diff changeset
295 // merged: was not known, report as added?
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
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parents: 89
diff changeset
296 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
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diff changeset
297 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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diff changeset
298 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
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diff changeset
299 if (origin != null) {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
300 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
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diff changeset
301 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
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diff changeset
302 }
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
303 } 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
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diff changeset
304 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
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diff changeset
305 // FIXME report to a mediator, continue status collection
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
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diff changeset
306 }
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diff changeset
307 } else if ((r = getDirstate().checkAdded(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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diff changeset
308 if (r.name2 != null && baseRevNames.contains(r.name2)) {
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
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diff changeset
309 baseRevNames.remove(r.name2); // XXX surely I shall not report rename source as Removed?
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
310 inspector.copied(getPathPool().path(r.name2), 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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diff changeset
311 return;
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diff changeset
312 }
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diff changeset
313 // fall-through, report as added
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
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diff changeset
314 } else if (getDirstate().checkRemoved(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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diff changeset
315 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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
316 return;
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parents:
diff changeset
317 }
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
318 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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diff changeset
319 } else {
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320 // was known; check whether clean or modified
282
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321 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname.toString());
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322 if ((r = getDirstate().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
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323 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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324 // same code as in #checkLocalStatusAgainstFile
280
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325 final boolean timestampEqual = getFileModificationTime(f) == r.time, sizeEqual = r.size == f.length();
282
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326 boolean handled = false;
280
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327 if (timestampEqual && sizeEqual) {
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328 inspector.clean(fname);
282
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329 handled = true;
280
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330 } else if (!sizeEqual && r.size >= 0) {
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331 inspector.modified(fname);
282
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332 handled = true;
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333 } else if (!todoCheckFlagsEqual(f, flags)) {
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334 // seems like flags have changed, no reason to check content further
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335 inspector.modified(fname);
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336 handled = true;
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337 }
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338 if (handled) {
280
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339 baseRevNames.remove(fname.toString()); // consumed, processed, handled.
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340 return;
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341 }
282
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342 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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343 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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344 // FALL THROUGH
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345 }
282
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346 if (r != null || (r = getDirstate().checkMerged(fname)) != null || (r = getDirstate().checkAdded(fname)) != null) {
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347 // check actual content to see actual changes
280
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348 // 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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349 // either clean or modified
282
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350 HgDataFile fileNode = repo.getFileNode(fname);
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351 if (areTheSame(f, fileNode, nid1)) {
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352 inspector.clean(fname);
58
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353 } else {
282
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354 inspector.modified(fname);
58
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355 }
226
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356 baseRevNames.remove(fname.toString()); // consumed, processed, handled.
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357 } else if (getDirstate().checkRemoved(fname) != null) {
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358 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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359 inspector.removed(fname);
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360 baseRevNames.remove(fname.toString()); // consumed, processed, handled.
58
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361 }
226
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362 // only those left in baseRevNames after processing are reported as removed
58
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363 }
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364
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365 // 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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366 // 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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367 // 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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368 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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369 // 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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370 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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371 }
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372
282
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373 private boolean areTheSame(File f, HgDataFile dataFile, Nodeid revision) {
157
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374 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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375 ByteArrayChannel bac = new ByteArrayChannel();
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376 boolean ioFailed = false;
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377 try {
282
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378 int localRevision = dataFile.getLocalRevision(revision);
157
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379 // need content with metadata striped off - although theoretically chances are metadata may be different,
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380 // WC doesn't have it anyway
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diff changeset
381 dataFile.content(localRevision, bac);
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382 } catch (CancelledException ex) {
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383 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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384 } catch (HgException ex) {
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385 ioFailed = true;
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386 }
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387 return !ioFailed && areTheSame(f, bac.toArray(), dataFile.getPath());
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388 }
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389
117
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390 private boolean areTheSame(File f, final byte[] data, Path p) {
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391 FileInputStream fis = null;
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392 try {
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393 try {
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394 fis = new FileInputStream(f);
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395 FileChannel fc = fis.getChannel();
226
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396 ByteBuffer fb = ByteBuffer.allocate(min(1 + data.length * 2 /*to fit couple of lines appended; never zero*/, 8192));
219
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397 class Check implements ByteChannel {
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398 final boolean debug = false; // XXX may want to add global variable to allow clients to turn
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399 boolean sameSoFar = true;
117
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diff changeset
400 int x = 0;
219
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401
148
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diff changeset
402 public int write(ByteBuffer buffer) {
117
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403 for (int i = buffer.remaining(); i > 0; i--, x++) {
219
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404 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
120
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405 if (debug) {
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406 byte[] xx = new byte[15];
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diff changeset
407 if (buffer.position() > 5) {
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408 buffer.position(buffer.position() - 5);
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409 }
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diff changeset
410 buffer.get(xx);
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411 System.out.print("expected >>" + new String(data, max(0, x - 4), 20) + "<< but got >>");
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412 System.out.println(new String(xx) + "<<");
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diff changeset
413 }
219
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diff changeset
414 sameSoFar = false;
117
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diff changeset
415 break;
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diff changeset
416 }
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diff changeset
417 }
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diff changeset
418 buffer.position(buffer.limit()); // mark as read
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419 return buffer.limit();
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420 }
219
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421
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422 public boolean sameSoFar() {
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423 return sameSoFar;
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424 }
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425 public boolean ultimatelyTheSame() {
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426 return sameSoFar && x == data.length;
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427 }
117
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428 };
219
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429 Check check = new Check();
117
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430 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
219
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431 while (fc.read(fb) != -1 && check.sameSoFar()) {
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432 fb.flip();
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433 filters.write(fb);
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434 fb.compact();
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435 }
246
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436 fis.close();
219
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437 return check.ultimatelyTheSame();
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438 } catch (IOException ex) {
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439 if (fis != null) {
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440 fis.close();
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441 }
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442 ex.printStackTrace(); // log warn
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443 }
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444 } catch (/*TODO typed*/Exception ex) {
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445 ex.printStackTrace();
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446 }
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447 return false;
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448 }
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449
280
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450 private static boolean todoCheckFlagsEqual(File f, String manifestFlags) {
58
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451 // FIXME implement
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452 return true;
58
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453 }
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454
229
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455 /**
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456 * 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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457 * traverse only relevant part of working copy on the filesystem.
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458 *
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459 * @param hgRepo repository
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460 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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461 *
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462 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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463 */
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464 @Experimental(reason="Provisional API")
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465 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
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466 ArrayList<Path> f = new ArrayList<Path>(5);
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467 ArrayList<Path> d = new ArrayList<Path>(5);
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468 for (Path p : paths) {
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469 if (p.isDirectory()) {
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470 d.add(p);
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471 } else {
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472 f.add(p);
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473 }
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474 }
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475 // final Path[] dirs = f.toArray(new Path[d.size()]);
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476 if (d.isEmpty()) {
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477 final Path[] files = f.toArray(new Path[f.size()]);
237
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478 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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479 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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480 }
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481 //
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482
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483 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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484 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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485 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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486 }
229
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487
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488 /**
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489 * Configure collector object to calculate status for matching files only.
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490 * This method may be less effective than explicit list of files as it iterates over whole repository
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491 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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492 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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493 *
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494 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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495 */
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496 @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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497 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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498 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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499 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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500 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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501 // 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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502 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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503 // 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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504 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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505 // method above/
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506 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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507 }
226
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508
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509 private static class FileListIterator implements FileIterator {
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510 private final File dir;
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511 private final Path[] paths;
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512 private int index;
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513 private File nextFile; // cache file() in case it's called more than once
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514
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515 public FileListIterator(File startDir, Path... files) {
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516 dir = startDir;
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517 paths = files;
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518 reset();
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519 }
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520
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521 public void reset() {
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522 index = -1;
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523 nextFile = null;
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524 }
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525
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526 public boolean hasNext() {
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527 return paths.length > 0 && index < paths.length-1;
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528 }
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529
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530 public void next() {
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531 index++;
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532 if (index == paths.length) {
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533 throw new NoSuchElementException();
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534 }
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535 nextFile = new File(dir, paths[index].toString());
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536 }
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537
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538 public Path name() {
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539 return paths[index];
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540 }
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541
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542 public File file() {
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543 return nextFile;
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544 }
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545
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546 public boolean inScope(Path file) {
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547 for (int i = 0; i < paths.length; i++) {
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548 if (paths[i].equals(file)) {
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549 return true;
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550 }
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551 }
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552 return false;
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553 }
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554 }
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555
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556 private static class FileIteratorFilter implements FileIterator {
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557 private final Path.Matcher filter;
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558 private final FileIterator walker;
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559 private boolean didNext = false;
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560
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561 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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562 assert fileWalker != null;
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563 assert filterMatcher != null;
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564 filter = filterMatcher;
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565 walker = fileWalker;
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566 }
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567
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568 public void reset() {
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569 walker.reset();
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570 }
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571
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572 public boolean hasNext() {
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573 while (walker.hasNext()) {
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574 walker.next();
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575 if (filter.accept(walker.name())) {
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576 didNext = true;
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577 return true;
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578 }
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579 }
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580 return false;
226
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581 }
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582
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583 public void next() {
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584 if (didNext) {
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585 didNext = false;
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586 } else {
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587 if (!hasNext()) {
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588 throw new NoSuchElementException();
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589 }
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590 }
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591 }
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592
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593 public Path name() {
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594 return walker.name();
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595 }
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596
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597 public File file() {
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598 return walker.file();
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599 }
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600
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601 public boolean inScope(Path file) {
229
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602 return filter.accept(file);
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603 }
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604 }
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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605 }