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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 420:6c22bdc0bdfd

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author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 22 Mar 2012 22:56:01 +0100
parents ee8264d80747
children 9c9c442b5f2e
rev   line source
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1 /*
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2 * Copyright (c) 2011-2012 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.HgException;
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34 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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35 import org.tmatesoft.hg.core.HgInvalidFileException;
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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.Internals;
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41 import org.tmatesoft.hg.internal.ManifestRevision;
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42 import org.tmatesoft.hg.internal.PathScope;
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43 import org.tmatesoft.hg.internal.Preview;
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44 import org.tmatesoft.hg.util.Adaptable;
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45 import org.tmatesoft.hg.util.ByteChannel;
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46 import org.tmatesoft.hg.util.CancelledException;
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47 import org.tmatesoft.hg.util.FileInfo;
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48 import org.tmatesoft.hg.util.FileIterator;
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49 import org.tmatesoft.hg.util.FileWalker;
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50 import org.tmatesoft.hg.util.Path;
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51 import org.tmatesoft.hg.util.PathPool;
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52 import org.tmatesoft.hg.util.PathRewrite;
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53 import org.tmatesoft.hg.util.RegularFileInfo;
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55 /**
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56 *
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57 * @author Artem Tikhomirov
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58 * @author TMate Software Ltd.
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59 */
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60 public class HgWorkingCopyStatusCollector {
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62 private final HgRepository repo;
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63 private final FileIterator repoWalker;
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64 private HgDirstate dirstate;
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65 private HgStatusCollector baseRevisionCollector;
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66 private PathPool pathPool;
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67 private ManifestRevision dirstateParentManifest;
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69 /**
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70 * Collector that iterates over complete working copy
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71 */
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72 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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73 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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74 }
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76 /**
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77 * Collector may analyze and report status for any arbitrary sub-tree of the working copy.
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78 * File iterator shall return names of the files relative to the repository root.
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79 *
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80 * @param hgRepo status target repository
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81 * @param workingCopyWalker iterator over files in the working copy
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82 */
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83 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator workingCopyWalker) {
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84 repo = hgRepo;
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85 repoWalker = workingCopyWalker;
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86 }
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88 /**
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89 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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90 * @param sc may be null
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91 */
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92 public void setBaseRevisionCollector(HgStatusCollector sc) {
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93 baseRevisionCollector = sc;
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94 }
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96 /*package-local*/ PathPool getPathPool() {
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97 if (pathPool == null) {
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98 if (baseRevisionCollector == null) {
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99 pathPool = new PathPool(new PathRewrite.Empty());
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100 } else {
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101 return baseRevisionCollector.getPathPool();
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102 }
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103 }
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104 return pathPool;
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105 }
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106
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107 public void setPathPool(PathPool pathPool) {
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108 this.pathPool = pathPool;
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109 }
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110
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111 /**
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112 * Access to directory state information this collector uses.
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113 * @return directory state holder, never <code>null</code>
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114 */
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115 public HgDirstate getDirstate() throws HgInvalidControlFileException {
59
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116 if (dirstate == null) {
284
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117 dirstate = repo.loadDirstate(getPathPool());
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118 }
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119 return dirstate;
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120 }
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121
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122 private HgDirstate getDirstateImpl() {
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123 return dirstate;
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124 }
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125
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126 private ManifestRevision getManifest(int changelogLocalRev) throws HgInvalidControlFileException {
284
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127 assert changelogLocalRev >= 0;
282
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128 ManifestRevision mr;
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129 if (baseRevisionCollector != null) {
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130 mr = baseRevisionCollector.raw(changelogLocalRev);
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131 } else {
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132 mr = new ManifestRevision(null, null);
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133 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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134 }
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135 return mr;
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136 }
354
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137
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138 private void initDirstateParentManifest() throws HgInvalidControlFileException {
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139 Nodeid dirstateParent = getDirstateImpl().parents().first();
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140 if (dirstateParent.isNull()) {
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141 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(NO_REVISION) : HgStatusCollector.createEmptyManifestRevision();
354
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142 } else {
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143 int changeloRevIndex = repo.getChangelog().getRevisionIndex(dirstateParent);
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144 dirstateParentManifest = getManifest(changeloRevIndex);
354
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145 }
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146 }
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147
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148 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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149 // In such case, we need to compare local files not to their TIP content, but to specific version at the time of selected revision
282
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150 private ManifestRevision getDirstateParentManifest() {
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151 return dirstateParentManifest;
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152 }
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153
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154 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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155 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
362
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156 public void walk(int baseRevision, HgStatusInspector inspector) throws HgInvalidControlFileException, IOException {
367
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157 if (HgInternals.wrongRevisionIndex(baseRevision) || baseRevision == BAD_REVISION) {
218
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158 throw new IllegalArgumentException(String.valueOf(baseRevision));
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159 }
362
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160 if (getDirstateImpl() == null) {
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161 getDirstate();
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162 }
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163 if (getDirstateParentManifest() == null) {
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164 initDirstateParentManifest();
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165 }
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166 ManifestRevision collect = null; // non null indicates we compare against base revision
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167 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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168 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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169 collect = getManifest(baseRevision);
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170 baseRevFiles = new TreeSet<Path>(collect.files());
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171 }
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172 if (inspector instanceof HgStatusCollector.Record) {
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173 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
282
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174 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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175 // because the change might be actually in working copy. Nevertheless,
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176 // as long as no nodeids can be provided for WC, seems reasonable to report
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177 // latest known nodeid change (although at the moment this is not used and
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178 // is done mostly not to leave stale initialization in the Record)
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179 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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180 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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181 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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182 } else {
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183 rev1 = baseRevision;
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184 }
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185 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
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186 }
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187 final HgIgnore hgIgnore = repo.getIgnore();
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188 repoWalker.reset();
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189 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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190 final HgDirstate ds = getDirstateImpl();
293
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191 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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192 while (repoWalker.hasNext()) {
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193 repoWalker.next();
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194 final Path fname = getPathPool().path(repoWalker.name());
287
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195 FileInfo f = repoWalker.file();
293
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196 Path knownInDirstate;
226
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197 if (!f.exists()) {
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198 // file coming from iterator doesn't exist.
293
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199 if ((knownInDirstate = ds.known(fname)) != null) {
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200 // found in dirstate
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201 processed.add(knownInDirstate);
294
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202 if (ds.checkRemoved(knownInDirstate) == null) {
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203 inspector.missing(knownInDirstate);
226
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204 } else {
294
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205 inspector.removed(knownInDirstate);
226
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206 }
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207 // do not report it as removed later
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208 if (collect != null) {
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209 baseRevFiles.remove(knownInDirstate);
226
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210 }
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211 } else {
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212 // chances are it was known in baseRevision. We may rely
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213 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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214 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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215 if (collect != null && baseRevFiles.remove(fname)) {
226
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216 inspector.removed(fname);
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217 } else {
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218 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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219 // as unknown. Command-line HG aborts "system can't find the file specified"
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220 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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221 // however, as it's unlikely to get unexisting files from FileIterator, and
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222 // its better to see erroneous file status rather than not to see any (which is too easy
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223 // to overlook), I think unknown() is reasonable approach here
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224 inspector.unknown(fname);
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225 }
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226 }
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227 continue;
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228 }
293
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229 if ((knownInDirstate = ds.known(fname)) != null) {
226
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230 // tracked file.
58
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231 // modified, added, removed, clean
293
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232 processed.add(knownInDirstate);
58
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233 if (collect != null) { // need to check against base revision, not FS file
294
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234 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, knownInDirstate, f, inspector);
58
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235 } else {
294
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236 checkLocalStatusAgainstFile(knownInDirstate, f, inspector);
58
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237 }
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238 } else {
226
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239 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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240 inspector.ignored(fname);
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241 } else {
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242 inspector.unknown(fname);
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243 }
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244 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
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245 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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246 // yield two statuses for the same file)
58
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247 }
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248 }
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249 if (collect != null) {
285
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250 for (Path fromBase : baseRevFiles) {
226
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251 if (repoWalker.inScope(fromBase)) {
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252 inspector.removed(fromBase);
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253 }
58
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254 }
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255 }
293
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256 knownEntries.removeAll(processed);
284
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257 for (Path m : knownEntries) {
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258 if (!repoWalker.inScope(m)) {
226
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259 // do not report as missing/removed those FileIterator doesn't care about.
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260 continue;
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261 }
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262 // missing known file from a working dir
293
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263 if (ds.checkRemoved(m) == null) {
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264 // not removed from the repository = 'deleted'
284
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265 inspector.missing(m);
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266 } else {
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267 // 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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268 // if we check against non-tip revision, do not report files that were added past that revision and now removed.
285
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269 if (collect == null || baseRevFiles.contains(m)) {
284
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270 inspector.removed(m);
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271 }
58
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272 }
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273 }
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274 }
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275
362
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276 public HgStatusCollector.Record status(int baseRevision) throws HgInvalidControlFileException, IOException {
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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277 HgStatusCollector.Record rv = new HgStatusCollector.Record();
58
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278 walk(baseRevision, rv);
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279 return rv;
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280 }
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281
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282 //********************************************
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283
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284
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
285 private void checkLocalStatusAgainstFile(Path fname, FileInfo f, HgStatusInspector inspector) {
58
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286 HgDirstate.Record r;
348
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diff changeset
287 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
58
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288 // either clean or modified
290
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diff changeset
289 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
280
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290 if (timestampEqual && sizeEqual) {
413
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diff changeset
291 // if flags change (chmod -x), timestamp does not change
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292 if (checkFlagsEqual(f, r.mode())) {
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293 inspector.clean(fname);
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294 } else {
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295 inspector.modified(fname); // flags are not the same
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296 }
290
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diff changeset
297 } else if (!sizeEqual && r.size() >= 0) {
280
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298 inspector.modified(fname);
58
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299 } else {
413
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diff changeset
300 // size is the same or unknown, and, perhaps, different timestamp
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diff changeset
301 // check actual content to avoid false modified files
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
302 try {
413
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diff changeset
303 if (!checkFlagsEqual(f, r.mode())) {
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304 // flags modified, no need to do expensive content check
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diff changeset
305 inspector.modified(fname);
397
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diff changeset
306 } else {
413
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diff changeset
307 HgDataFile df = repo.getFileNode(fname);
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diff changeset
308 if (!df.exists()) {
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diff changeset
309 String msg = String.format("File %s known as normal in dirstate (%d, %d), doesn't exist at %s", fname, r.modificationTime(), r.size(), repo.getStoragePath(df));
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diff changeset
310 throw new HgInvalidFileException(msg, null).setFileName(fname);
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311 }
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diff changeset
312 Nodeid rev = getDirstateParentManifest().nodeid(fname);
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313 // rev might be null here if fname comes to dirstate as a result of a merge operation
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314 // where one of the parents (first parent) had no fname file, but second parent had.
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diff changeset
315 // E.g. fork revision 3, revision 4 gets .hgtags, few modifications and merge(3,12)
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316 // see Issue 14 for details
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diff changeset
317 if (rev == null || !areTheSame(f, df, rev)) {
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diff changeset
318 inspector.modified(df.getPath());
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319 } else {
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diff changeset
320 inspector.clean(df.getPath());
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321 }
397
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322 }
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diff changeset
323 } catch (HgException ex) {
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diff changeset
324 repo.getContext().getLog().warn(getClass(), ex, null);
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diff changeset
325 inspector.invalid(fname, ex);
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
326 }
58
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327 }
348
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328 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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329 if (r.copySource() == null) {
280
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330 inspector.added(fname);
58
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331 } else {
290
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332 inspector.copied(r.copySource(), fname);
58
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333 }
348
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334 } else if ((r = getDirstateImpl().checkRemoved(fname)) != null) {
280
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335 inspector.removed(fname);
348
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336 } else if ((r = getDirstateImpl().checkMerged(fname)) != null) {
280
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337 inspector.modified(fname);
58
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338 }
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339 }
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340
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341 // XXX refactor checkLocalStatus methods in more OO way
287
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342 private void checkLocalStatusAgainstBaseRevision(Set<Path> baseRevNames, ManifestRevision collect, int baseRevision, Path fname, FileInfo f, HgStatusInspector inspector) {
58
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343 // fname is in the dirstate, either Normal, Added, Removed or Merged
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344 Nodeid nid1 = collect.nodeid(fname);
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345 HgManifest.Flags flags = collect.flags(fname);
58
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346 HgDirstate.Record r;
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347 if (nid1 == null) {
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348 // normal: added?
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349 // added: not known at the time of baseRevision, shall report
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350 // merged: was not known, report as added?
348
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351 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
157
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352 try {
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353 Path origin = HgStatusCollector.getOriginIfCopy(repo, fname, baseRevNames, baseRevision);
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354 if (origin != null) {
226
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355 inspector.copied(getPathPool().path(origin), fname);
157
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356 return;
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357 }
354
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358 } catch (HgException ex) {
360
150500515714 Report non-critical errors during status operation to handler/inspector
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359 // report failure and continue status collection
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360 inspector.invalid(fname, ex);
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361 }
348
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362 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
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363 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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364 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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365 inspector.copied(r.copySource(), fname);
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366 return;
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367 }
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368 // fall-through, report as added
348
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369 } else if (getDirstateImpl().checkRemoved(fname) != null) {
58
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370 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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371 return;
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372 }
226
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373 inspector.added(fname);
58
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374 } else {
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375 // was known; check whether clean or modified
285
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376 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
348
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377 if ((r = getDirstateImpl().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
282
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378 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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379 // same code as in #checkLocalStatusAgainstFile
290
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380 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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381 boolean handled = false;
280
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382 if (timestampEqual && sizeEqual) {
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383 inspector.clean(fname);
282
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384 handled = true;
290
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385 } else if (!sizeEqual && r.size() >= 0) {
280
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386 inspector.modified(fname);
282
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387 handled = true;
413
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388 } else if (!checkFlagsEqual(f, flags)) {
282
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389 // seems like flags have changed, no reason to check content further
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390 inspector.modified(fname);
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391 handled = true;
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392 }
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diff changeset
393 if (handled) {
285
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diff changeset
394 baseRevNames.remove(fname); // consumed, processed, handled.
280
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diff changeset
395 return;
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diff changeset
396 }
282
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diff changeset
397 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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diff changeset
398 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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399 // FALL THROUGH
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400 }
348
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diff changeset
401 if (r != null || (r = getDirstateImpl().checkMerged(fname)) != null || (r = getDirstateImpl().checkAdded(fname)) != null) {
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
402 try {
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
403 // check actual content to see actual changes
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diff changeset
404 // when added - seems to be the case of a file added once again, hence need to check if content is different
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diff changeset
405 // either clean or modified
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diff changeset
406 HgDataFile fileNode = repo.getFileNode(fname);
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
407 if (areTheSame(f, fileNode, nid1)) {
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diff changeset
408 inspector.clean(fname);
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
409 } else {
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
410 inspector.modified(fname);
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
411 }
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diff changeset
412 } catch (HgException ex) {
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
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diff changeset
413 repo.getContext().getLog().warn(getClass(), ex, null);
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diff changeset
414 inspector.invalid(fname, ex);
58
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415 }
285
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diff changeset
416 baseRevNames.remove(fname); // consumed, processed, handled.
348
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diff changeset
417 } else if (getDirstateImpl().checkRemoved(fname) != null) {
226
26ad7827a62d Support status query for a single file or a subdirectory of a repository
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diff changeset
418 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
419 inspector.removed(fname);
285
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diff changeset
420 baseRevNames.remove(fname); // consumed, processed, handled.
58
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diff changeset
421 }
226
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diff changeset
422 // only those left in baseRevNames after processing are reported as removed
58
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423 }
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parents:
diff changeset
424
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
425 // 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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diff changeset
426 // we don't need to tell exact difference, hash should be enough to detect difference, and it doesn't involve reading historical file content, and it's relatively
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diff changeset
427 // 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:
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
428 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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
429 // 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).
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
430 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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
431 }
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
432
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
433 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) throws HgException {
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
434 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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
435 ByteArrayChannel bac = new ByteArrayChannel();
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
436 try {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
437 int fileRevisionIndex = dataFile.getRevisionIndex(revision);
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
438 // need content with metadata striped off - although theoretically chances are metadata may be different,
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
439 // WC doesn't have it anyway
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
440 dataFile.content(fileRevisionIndex, bac);
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
441 } catch (CancelledException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
442 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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
443 }
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
444 return areTheSame(f, bac.toArray(), dataFile.getPath());
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
445 }
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
446
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
447 private boolean areTheSame(FileInfo f, final byte[] data, Path p) throws HgException {
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
448 ReadableByteChannel is = null;
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
449 class Check implements ByteChannel {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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parents: 294
diff changeset
450 final boolean debug = repo.getContext().getLog().isDebug();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
451 boolean sameSoFar = true;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
452 int x = 0;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
453
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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parents: 294
diff changeset
454 public int write(ByteBuffer buffer) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
455 for (int i = buffer.remaining(); i > 0; i--, x++) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
456 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
457 if (debug) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
458 byte[] xx = new byte[15];
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
459 if (buffer.position() > 5) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
460 buffer.position(buffer.position() - 5);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
461 }
334
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
462 buffer.get(xx, 0, min(xx.length, i-1 /*-1 for the one potentially read at buffer.get in if() */));
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
463 String exp;
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
464 if (x < data.length) {
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
465 exp = new String(data, max(0, x - 4), min(data.length - x, 20));
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
466 } else {
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
467 int offset = max(0, x - 4);
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
468 exp = new String(data, offset, min(data.length - offset, 20));
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
469 }
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
470 repo.getContext().getLog().debug(getClass(), "expected >>%s<< but got >>%s<<", exp, new String(xx));
117
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
471 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
472 sameSoFar = false;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
473 break;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
474 }
117
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
475 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
476 buffer.position(buffer.limit()); // mark as read
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
477 return buffer.limit();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
478 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
479
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
480 public boolean sameSoFar() {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
481 return sameSoFar;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
482 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
483 public boolean ultimatelyTheSame() {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
484 return sameSoFar && x == data.length;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
485 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
486 };
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
487 Check check = new Check();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
488 try {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
489 is = f.newInputChannel();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
490 ByteBuffer fb = ByteBuffer.allocate(min(1 + data.length * 2 /*to fit couple of lines appended; never zero*/, 8192));
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
491 FilterByteChannel filters = new FilterByteChannel(check, repo.getFiltersFromWorkingDirToRepo(p));
356
91d75e1bac9f Consistent approach to deal with adaptable objects. Give adaptable precedence over instanceof to allow conditional response when classes do implement desired interface
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 355
diff changeset
492 Preview preview = Adaptable.Factory.getAdapter(filters, Preview.class, null);
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
493 if (preview != null) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
494 while (is.read(fb) != -1) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
495 fb.flip();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
496 preview.preview(fb);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
497 fb.clear();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
498 }
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
499 // reset channel to read once again
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
500 try {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
501 is.close();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
502 } catch (IOException ex) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
503 repo.getContext().getLog().info(getClass(), ex, null);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
504 }
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
505 is = f.newInputChannel();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
506 fb.clear();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
507 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
508 while (is.read(fb) != -1 && check.sameSoFar()) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
509 fb.flip();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
510 filters.write(fb);
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
511 fb.compact();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
512 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
513 return check.ultimatelyTheSame();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
514 } catch (CancelledException ex) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
515 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
516 return check.ultimatelyTheSame();
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
517 } catch (IOException ex) {
397
5e95b0da26f2 Issue 24: IAE, Underflow in FilterDataAccess. Issue 26:UnsupportedOperationException when patching empty base revision. Tests
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
518 throw new HgInvalidFileException("File comparison failed", ex).setFileName(p);
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
519 } finally {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
520 if (is != null) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
521 try {
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
522 is.close();
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
523 } catch (IOException ex) {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
524 repo.getContext().getLog().info(getClass(), ex, null);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
525 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
526 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
527 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
528 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
529
413
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
530 /**
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
531 * @return <code>true</code> if flags are the same
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
532 */
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
533 private boolean checkFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
534 boolean same = true;
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
535 if (repoWalker.supportsLinkFlag()) {
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
536 if (originalManifestFlags == HgManifest.Flags.Link) {
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
537 return f.isSymlink();
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
538 }
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
539 // original flag is not link, hence flags are the same if file is not link, too.
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
540 same = !f.isSymlink();
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541 } // otherwise treat flags the same
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542 if (repoWalker.supportsExecFlag()) {
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543 if (originalManifestFlags == HgManifest.Flags.Exec) {
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544 return f.isExecutable();
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545 }
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546 // original flag has no executable attribute, hence file shall not be executable, too
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547 same = same || !f.isExecutable();
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548 }
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549 return same;
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550 }
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551
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552 private boolean checkFlagsEqual(FileInfo f, int dirstateFileMode) {
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553 // source/include/linux/stat.h
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554 final int S_IFLNK = 0120000, S_IXUSR = 00100;
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555 // TODO post-1.0 HgManifest.Flags.parse(int)
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556 if ((dirstateFileMode & S_IFLNK) == S_IFLNK) {
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557 return checkFlagsEqual(f, HgManifest.Flags.Link);
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558 }
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559 if ((dirstateFileMode & S_IXUSR) == S_IXUSR) {
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560 return checkFlagsEqual(f, HgManifest.Flags.Exec);
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561 }
415
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562 return checkFlagsEqual(f, HgManifest.Flags.RegularFile); // no flags
58
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563 }
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564
229
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565 /**
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566 * 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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567 * traverse only relevant part of working copy on the filesystem.
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568 *
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569 * @param hgRepo repository
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570 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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571 *
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572 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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573 */
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574 @Experimental(reason="Provisional API")
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575 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
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576 ArrayList<Path> f = new ArrayList<Path>(5);
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577 ArrayList<Path> d = new ArrayList<Path>(5);
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578 for (Path p : paths) {
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579 if (p.isDirectory()) {
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580 d.add(p);
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581 } else {
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582 f.add(p);
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583 }
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584 }
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585 // final Path[] dirs = f.toArray(new Path[d.size()]);
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586 if (d.isEmpty()) {
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diff changeset
587 final Path[] files = f.toArray(new Path[f.size()]);
237
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588 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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589 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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590 }
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591 //
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592
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593 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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594 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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595 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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596 }
229
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597
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diff changeset
598 /**
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diff changeset
599 * Configure collector object to calculate status for matching files only.
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600 * This method may be less effective than explicit list of files as it iterates over whole repository
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601 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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602 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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603 *
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604 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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605 */
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606 @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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607 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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608 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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609 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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610 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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611 // 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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612 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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613 // 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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614 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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615 // method above/
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616 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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617 }
226
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618
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619 private static class FileListIterator implements FileIterator {
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620 private final File dir;
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621 private final Path[] paths;
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622 private int index;
287
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623 private RegularFileInfo nextFile;
413
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624 private final boolean execCap, linkCap;
226
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625
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626 public FileListIterator(File startDir, Path... files) {
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627 dir = startDir;
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628 paths = files;
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629 reset();
413
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630 execCap = Internals.checkSupportsExecutables(startDir);
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631 linkCap = Internals.checkSupportsSymlinks(startDir);
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632 }
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633
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634 public void reset() {
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635 index = -1;
413
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636 nextFile = new RegularFileInfo(execCap, linkCap);
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637 }
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638
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639 public boolean hasNext() {
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640 return paths.length > 0 && index < paths.length-1;
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641 }
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642
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643 public void next() {
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644 index++;
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645 if (index == paths.length) {
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646 throw new NoSuchElementException();
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647 }
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648 nextFile.init(new File(dir, paths[index].toString()));
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649 }
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650
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651 public Path name() {
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652 return paths[index];
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653 }
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654
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655 public FileInfo file() {
226
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656 return nextFile;
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657 }
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658
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659 public boolean inScope(Path file) {
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660 for (int i = 0; i < paths.length; i++) {
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661 if (paths[i].equals(file)) {
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662 return true;
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663 }
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664 }
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665 return false;
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666 }
413
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667
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668 public boolean supportsExecFlag() {
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669 // TODO Auto-generated method stub
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670 return false;
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671 }
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672
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673 public boolean supportsLinkFlag() {
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674 // TODO Auto-generated method stub
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675 return false;
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676 }
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677 }
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678
229
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679 private static class FileIteratorFilter implements FileIterator {
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680 private final Path.Matcher filter;
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681 private final FileIterator walker;
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682 private boolean didNext = false;
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683
229
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684 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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685 assert fileWalker != null;
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686 assert filterMatcher != null;
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687 filter = filterMatcher;
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diff changeset
688 walker = fileWalker;
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689 }
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690
350
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diff changeset
691 public void reset() throws IOException {
226
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diff changeset
692 walker.reset();
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693 }
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diff changeset
694
350
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695 public boolean hasNext() throws IOException {
229
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696 while (walker.hasNext()) {
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697 walker.next();
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698 if (filter.accept(walker.name())) {
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699 didNext = true;
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700 return true;
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701 }
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702 }
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703 return false;
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diff changeset
704 }
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705
350
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diff changeset
706 public void next() throws IOException {
229
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707 if (didNext) {
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diff changeset
708 didNext = false;
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diff changeset
709 } else {
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diff changeset
710 if (!hasNext()) {
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diff changeset
711 throw new NoSuchElementException();
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712 }
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diff changeset
713 }
226
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714 }
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diff changeset
715
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716 public Path name() {
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717 return walker.name();
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diff changeset
718 }
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diff changeset
719
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
720 public FileInfo file() {
226
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diff changeset
721 return walker.file();
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722 }
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diff changeset
723
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diff changeset
724 public boolean inScope(Path file) {
229
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diff changeset
725 return filter.accept(file);
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diff changeset
726 }
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diff changeset
727
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
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diff changeset
728 public boolean supportsExecFlag() {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 405
diff changeset
729 return walker.supportsExecFlag();
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diff changeset
730 }
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parents: 405
diff changeset
731
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
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parents: 405
diff changeset
732 public boolean supportsLinkFlag() {
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
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parents: 405
diff changeset
733 return walker.supportsLinkFlag();
7f27122011c3 Support and respect for symbolic links and executable flag, with /bin/ls backed implementation to discover these
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diff changeset
734 }
226
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diff changeset
735 }
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
736 }