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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 290:8faad08c709b

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Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 14 Sep 2011 01:52:41 +0200
parents ed6b74a58c66
children 9774f47d904d
rev   line source
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import static java.lang.Math.max;
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20 import static java.lang.Math.min;
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21 import static org.tmatesoft.hg.repo.HgRepository.*;
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23 import java.io.File;
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24 import java.io.IOException;
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25 import java.nio.ByteBuffer;
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26 import java.nio.channels.ReadableByteChannel;
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27 import java.util.ArrayList;
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28 import java.util.Collections;
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29 import java.util.NoSuchElementException;
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30 import java.util.Set;
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31 import java.util.TreeSet;
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32
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33 import org.tmatesoft.hg.core.HgDataStreamException;
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34 import org.tmatesoft.hg.core.HgException;
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35 import org.tmatesoft.hg.core.Nodeid;
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36 import org.tmatesoft.hg.internal.ByteArrayChannel;
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37 import org.tmatesoft.hg.internal.Experimental;
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38 import org.tmatesoft.hg.internal.FilterByteChannel;
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39 import org.tmatesoft.hg.internal.ManifestRevision;
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40 import org.tmatesoft.hg.internal.PathScope;
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41 import org.tmatesoft.hg.util.ByteChannel;
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42 import org.tmatesoft.hg.util.CancelledException;
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43 import org.tmatesoft.hg.util.FileInfo;
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44 import org.tmatesoft.hg.util.FileIterator;
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45 import org.tmatesoft.hg.util.FileWalker;
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46 import org.tmatesoft.hg.util.Path;
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47 import org.tmatesoft.hg.util.PathPool;
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48 import org.tmatesoft.hg.util.PathRewrite;
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49 import org.tmatesoft.hg.util.RegularFileInfo;
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51 /**
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52 *
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53 * @author Artem Tikhomirov
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54 * @author TMate Software Ltd.
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55 */
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56 public class HgWorkingCopyStatusCollector {
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58 private final HgRepository repo;
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59 private final FileIterator repoWalker;
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60 private HgDirstate dirstate;
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61 private HgStatusCollector baseRevisionCollector;
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62 private PathPool pathPool;
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63 private ManifestRevision dirstateParentManifest;
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64
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65 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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66 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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67 }
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68
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69 // FIXME document cons
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70 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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71 repo = hgRepo;
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72 repoWalker = hgRepoWalker;
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73 }
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75 /**
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76 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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77 * @param sc may be null
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78 */
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79 public void setBaseRevisionCollector(HgStatusCollector sc) {
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80 baseRevisionCollector = sc;
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81 }
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83 /*package-local*/ PathPool getPathPool() {
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84 if (pathPool == null) {
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85 if (baseRevisionCollector == null) {
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86 pathPool = new PathPool(new PathRewrite.Empty());
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87 } else {
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88 return baseRevisionCollector.getPathPool();
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89 }
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90 }
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91 return pathPool;
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92 }
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93
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94 public void setPathPool(PathPool pathPool) {
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95 this.pathPool = pathPool;
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96 }
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97
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98 /**
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99 * Access to directory state information this collector uses.
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100 * @return directory state holder, never <code>null</code>
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101 */
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102 public HgDirstate getDirstate() {
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103 if (dirstate == null) {
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104 dirstate = repo.loadDirstate(getPathPool());
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105 }
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106 return dirstate;
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107 }
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108
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109 private ManifestRevision getManifest(int changelogLocalRev) {
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110 assert changelogLocalRev >= 0;
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111 ManifestRevision mr;
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112 if (baseRevisionCollector != null) {
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113 mr = baseRevisionCollector.raw(changelogLocalRev);
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114 } else {
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115 mr = new ManifestRevision(null, null);
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116 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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117 }
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118 return mr;
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119 }
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120
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121 private ManifestRevision getDirstateParentManifest() {
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122 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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123 // In such case, we need to compare local files not to their TIP content, but to specific version at the time of selected revision
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124 if (dirstateParentManifest == null) {
284
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125 Nodeid dirstateParent = getDirstate().parents().first();
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126 if (dirstateParent.isNull()) {
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127 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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128 } else {
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129 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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130 dirstateParentManifest = getManifest(changelogLocalRev);
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131 }
282
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132 }
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133 return dirstateParentManifest;
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134 }
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135
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136 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
275
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137 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
93
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138 public void walk(int baseRevision, HgStatusInspector inspector) {
282
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139 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
218
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140 throw new IllegalArgumentException(String.valueOf(baseRevision));
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141 }
282
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142 ManifestRevision collect = null; // non null indicates we compare against base revision
285
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143 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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144 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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145 collect = getManifest(baseRevision);
285
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146 baseRevFiles = new TreeSet<Path>(collect.files());
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147 }
94
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148 if (inspector instanceof HgStatusCollector.Record) {
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149 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
282
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150 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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151 // because the change might be actually in working copy. Nevertheless,
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152 // as long as no nodeids can be provided for WC, seems reasonable to report
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153 // latest known nodeid change (although at the moment this is not used and
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154 // is done mostly not to leave stale initialization in the Record)
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155 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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156 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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157 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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158 } else {
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159 rev1 = baseRevision;
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160 }
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161 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
68
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162 }
282
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163 final HgIgnore hgIgnore = repo.getIgnore();
284
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164 TreeSet<Path> knownEntries = getDirstate().all();
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165 repoWalker.reset();
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166 while (repoWalker.hasNext()) {
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167 repoWalker.next();
284
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168 final Path fname = getPathPool().path(repoWalker.name());
287
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169 FileInfo f = repoWalker.file();
226
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170 if (!f.exists()) {
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171 // file coming from iterator doesn't exist.
284
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172 if (knownEntries.remove(fname)) {
226
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173 if (getDirstate().checkRemoved(fname) == null) {
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174 inspector.missing(fname);
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175 } else {
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176 inspector.removed(fname);
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177 }
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178 // do not report it as removed later
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179 if (collect != null) {
285
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180 baseRevFiles.remove(fname);
226
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181 }
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182 } else {
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183 // chances are it was known in baseRevision. We may rely
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184 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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185 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
285
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186 if (collect != null && baseRevFiles.remove(fname)) {
226
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187 inspector.removed(fname);
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188 } else {
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189 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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190 // as unknown. Command-line HG aborts "system can't find the file specified"
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191 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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192 // however, as it's unlikely to get unexisting files from FileIterator, and
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193 // its better to see erroneous file status rather than not to see any (which is too easy
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194 // to overlook), I think unknown() is reasonable approach here
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195 inspector.unknown(fname);
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196 }
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197 }
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198 continue;
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199 }
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200 if (knownEntries.remove(fname)) {
226
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201 // tracked file.
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202 // modified, added, removed, clean
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203 if (collect != null) { // need to check against base revision, not FS file
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204 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, fname, f, inspector);
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205 } else {
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206 checkLocalStatusAgainstFile(fname, f, inspector);
58
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207 }
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208 } else {
226
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209 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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210 inspector.ignored(fname);
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diff changeset
211 } else {
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
212 inspector.unknown(fname);
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
213 }
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
214 // 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
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parents: 219
diff changeset
215 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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parents: 219
diff changeset
216 // 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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217 }
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218 }
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parents:
diff changeset
219 if (collect != null) {
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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diff changeset
220 for (Path fromBase : baseRevFiles) {
226
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parents: 219
diff changeset
221 if (repoWalker.inScope(fromBase)) {
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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parents: 219
diff changeset
222 inspector.removed(fromBase);
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diff changeset
223 }
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 }
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225 }
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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diff changeset
226 for (Path m : knownEntries) {
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diff changeset
227 if (!repoWalker.inScope(m)) {
226
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diff changeset
228 // do not report as missing/removed those FileIterator doesn't care about.
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diff changeset
229 continue;
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
230 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
231 // 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
232 if (getDirstate().checkRemoved(m) == null) {
74
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diff changeset
233 // not removed from the repository = 'deleted'
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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diff changeset
234 inspector.missing(m);
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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parents: 68
diff changeset
235 } else {
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
236 // 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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diff changeset
237 // if we check against non-tip revision, do not report files that were added past that revision and now removed.
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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diff changeset
238 if (collect == null || baseRevFiles.contains(m)) {
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
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parents: 282
diff changeset
239 inspector.removed(m);
76
658fa6b3a371 Fixed a defect when a file added and removed past some revision was reported as R for status against that rev
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diff changeset
240 }
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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241 }
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242 }
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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243 }
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
244
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
245 public HgStatusCollector.Record status(int baseRevision) {
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
246 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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247 walk(baseRevision, rv);
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248 return rv;
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249 }
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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
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diff changeset
251 //********************************************
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252
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253
287
ed6b74a58c66 Use FileInfo abstraction with necessary subset of File functionality instead of File to facilitate other effective file system iterators
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diff changeset
254 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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diff changeset
255 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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diff changeset
256 if ((r = getDirstate().checkNormal(fname)) != null) {
58
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257 // either clean or modified
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
258 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
259 if (timestampEqual && sizeEqual) {
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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parents: 275
diff changeset
260 inspector.clean(fname);
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
261 } else if (!sizeEqual && r.size() >= 0) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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parents: 275
diff changeset
262 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
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parents:
diff changeset
263 } else {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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parents: 275
diff changeset
264 // 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
265 // 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
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parents: 117
diff changeset
266 HgDataFile df = repo.getFileNode(fname);
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
267 Nodeid rev = getDirstateParentManifest().nodeid(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)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
268 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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parents: 117
diff changeset
269 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
270 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
271 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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parents: 117
diff changeset
272 }
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
273 }
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
274 } else if ((r = getDirstate().checkAdded(fname)) != null) {
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
275 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
276 inspector.added(fname);
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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parents:
diff changeset
277 } else {
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
278 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
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parents:
diff changeset
279 }
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
280 } 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
281 inspector.removed(fname);
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
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parents: 58
diff changeset
282 } 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
283 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
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diff changeset
284 }
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
285 }
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
286
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
287 // 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
288 private void checkLocalStatusAgainstBaseRevision(Set<Path> baseRevNames, ManifestRevision collect, int baseRevision, Path fname, FileInfo f, HgStatusInspector inspector) {
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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parents:
diff changeset
289 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
290 Nodeid nid1 = collect.nodeid(fname);
6dbbc53fc46d Use Path instead of plain String for manifest file names
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parents: 284
diff changeset
291 HgManifest.Flags flags = collect.flags(fname);
58
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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parents:
diff changeset
292 HgDirstate.Record r;
4cfc47bc14cc Status against local working dir extracted into distinct class. Iterating over local files extracted for ease of os-dependant patching
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parents:
diff changeset
293 if (nid1 == null) {
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
294 // normal: added?
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
295 // 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
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parents:
diff changeset
296 // 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
297 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
298 try {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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parents: 148
diff changeset
299 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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parents: 148
diff changeset
300 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
301 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
302 return;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
303 }
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
304 } 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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parents: 148
diff changeset
305 ex.printStackTrace();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
306 // FIXME report to a mediator, continue status collection
90
a95c700408a9 Correctly report copy/rename events for rev..working copy case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 89
diff changeset
307 }
a95c700408a9 Correctly report copy/rename events for rev..working copy case
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 89
diff changeset
308 } 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
309 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
310 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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parents: 287
diff changeset
311 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
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parents:
diff changeset
312 return;
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
313 }
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
314 // 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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parents: 58
diff changeset
315 } 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
316 // 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
317 return;
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
318 }
226
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319 inspector.added(fname);
58
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320 } else {
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321 // was known; check whether clean or modified
285
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322 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
282
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323 if ((r = getDirstate().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
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324 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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325 // same code as in #checkLocalStatusAgainstFile
290
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326 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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327 boolean handled = false;
280
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328 if (timestampEqual && sizeEqual) {
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329 inspector.clean(fname);
282
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330 handled = true;
290
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331 } else if (!sizeEqual && r.size() >= 0) {
280
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332 inspector.modified(fname);
282
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333 handled = true;
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334 } else if (!todoCheckFlagsEqual(f, flags)) {
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335 // seems like flags have changed, no reason to check content further
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336 inspector.modified(fname);
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337 handled = true;
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338 }
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339 if (handled) {
285
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340 baseRevNames.remove(fname); // consumed, processed, handled.
280
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341 return;
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342 }
282
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343 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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344 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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345 // FALL THROUGH
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346 }
282
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347 if (r != null || (r = getDirstate().checkMerged(fname)) != null || (r = getDirstate().checkAdded(fname)) != null) {
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348 // check actual content to see actual changes
280
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349 // 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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350 // either clean or modified
282
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351 HgDataFile fileNode = repo.getFileNode(fname);
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352 if (areTheSame(f, fileNode, nid1)) {
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353 inspector.clean(fname);
58
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354 } else {
282
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355 inspector.modified(fname);
58
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356 }
285
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357 baseRevNames.remove(fname); // consumed, processed, handled.
226
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358 } else if (getDirstate().checkRemoved(fname) != null) {
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359 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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360 inspector.removed(fname);
285
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361 baseRevNames.remove(fname); // consumed, processed, handled.
58
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362 }
226
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363 // only those left in baseRevNames after processing are reported as removed
58
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364 }
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365
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366 // 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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367 // 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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368 // 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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369 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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370 // 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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371 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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372 }
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373
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374 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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375 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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376 ByteArrayChannel bac = new ByteArrayChannel();
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377 boolean ioFailed = false;
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378 try {
282
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379 int localRevision = dataFile.getLocalRevision(revision);
157
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380 // need content with metadata striped off - although theoretically chances are metadata may be different,
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381 // WC doesn't have it anyway
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382 dataFile.content(localRevision, bac);
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383 } catch (CancelledException ex) {
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384 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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385 } catch (HgException ex) {
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386 ioFailed = true;
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387 }
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388 return !ioFailed && areTheSame(f, bac.toArray(), dataFile.getPath());
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389 }
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390
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diff changeset
391 private boolean areTheSame(FileInfo f, final byte[] data, Path p) {
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392 ReadableByteChannel is = null;
117
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393 try {
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394 try {
287
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395 is = f.newInputChannel();
226
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diff changeset
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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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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diff changeset
406 byte[] xx = new byte[15];
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diff changeset
407 if (buffer.position() > 5) {
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diff changeset
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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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 }
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428 };
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429 Check check = new Check();
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430 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
287
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431 while (is.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 }
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436 return check.ultimatelyTheSame();
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437 } catch (IOException ex) {
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438 ex.printStackTrace(); // log warn
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439 } finally {
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440 if (is != null) {
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441 is.close();
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442 }
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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
287
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450 private static boolean todoCheckFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
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451 // FIXME implement
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452 return true;
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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()]);
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478 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
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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));
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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 }
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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;
287
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513 private RegularFileInfo nextFile;
226
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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 = new RegularFileInfo();
226
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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.init(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 FileInfo 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;
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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 FileInfo 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) {
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602 return filter.accept(file);
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603 }
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604 }
58
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605 }