Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 367:2fadf8695f8a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use 'revision index' instead of the vague 'local revision number' concept in the API
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 16 Dec 2011 15:37:27 +0100
parents 189dc6dc1c3e
children 5e95b0da26f2
rev   line source
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import static java.lang.Math.max;
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20 import static java.lang.Math.min;
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21 import static org.tmatesoft.hg.repo.HgRepository.*;
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23 import java.io.File;
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24 import java.io.IOException;
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25 import java.nio.ByteBuffer;
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26 import java.nio.channels.ReadableByteChannel;
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27 import java.util.ArrayList;
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28 import java.util.Collections;
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29 import java.util.NoSuchElementException;
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30 import java.util.Set;
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31 import java.util.TreeSet;
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32
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33 import org.tmatesoft.hg.core.HgBadStateException;
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34 import org.tmatesoft.hg.core.HgException;
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35 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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36 import org.tmatesoft.hg.core.Nodeid;
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37 import org.tmatesoft.hg.internal.ByteArrayChannel;
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38 import org.tmatesoft.hg.internal.Experimental;
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39 import org.tmatesoft.hg.internal.FilterByteChannel;
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40 import org.tmatesoft.hg.internal.ManifestRevision;
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41 import org.tmatesoft.hg.internal.PathScope;
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42 import org.tmatesoft.hg.internal.Preview;
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43 import org.tmatesoft.hg.util.Adaptable;
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44 import org.tmatesoft.hg.util.ByteChannel;
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45 import org.tmatesoft.hg.util.CancelledException;
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46 import org.tmatesoft.hg.util.FileInfo;
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47 import org.tmatesoft.hg.util.FileIterator;
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48 import org.tmatesoft.hg.util.FileWalker;
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49 import org.tmatesoft.hg.util.Path;
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50 import org.tmatesoft.hg.util.PathPool;
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51 import org.tmatesoft.hg.util.PathRewrite;
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52 import org.tmatesoft.hg.util.RegularFileInfo;
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54 /**
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55 *
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56 * @author Artem Tikhomirov
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57 * @author TMate Software Ltd.
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58 */
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59 public class HgWorkingCopyStatusCollector {
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61 private final HgRepository repo;
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62 private final FileIterator repoWalker;
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63 private HgDirstate dirstate;
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64 private HgStatusCollector baseRevisionCollector;
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65 private PathPool pathPool;
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66 private ManifestRevision dirstateParentManifest;
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67
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68 /**
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69 * Collector that iterates over complete working copy
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70 */
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71 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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72 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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73 }
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75 /**
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76 * Collector may analyze and report status for any arbitrary sub-tree of the working copy.
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77 * File iterator shall return names of the files relative to the repository root.
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78 *
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79 * @param hgRepo status target repository
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80 * @param workingCopyWalker iterator over files in the working copy
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81 */
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82 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator workingCopyWalker) {
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83 repo = hgRepo;
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84 repoWalker = workingCopyWalker;
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85 }
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87 /**
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88 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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89 * @param sc may be null
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90 */
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91 public void setBaseRevisionCollector(HgStatusCollector sc) {
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92 baseRevisionCollector = sc;
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93 }
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94
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95 /*package-local*/ PathPool getPathPool() {
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96 if (pathPool == null) {
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97 if (baseRevisionCollector == null) {
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98 pathPool = new PathPool(new PathRewrite.Empty());
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99 } else {
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100 return baseRevisionCollector.getPathPool();
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101 }
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102 }
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103 return pathPool;
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104 }
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105
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106 public void setPathPool(PathPool pathPool) {
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107 this.pathPool = pathPool;
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108 }
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109
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110 /**
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111 * Access to directory state information this collector uses.
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112 * @return directory state holder, never <code>null</code>
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113 */
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114 public HgDirstate getDirstate() throws HgInvalidControlFileException {
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115 if (dirstate == null) {
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116 dirstate = repo.loadDirstate(getPathPool());
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117 }
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118 return dirstate;
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119 }
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120
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121 private HgDirstate getDirstateImpl() {
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122 return dirstate;
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123 }
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124
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125 private ManifestRevision getManifest(int changelogLocalRev) throws HgInvalidControlFileException {
284
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126 assert changelogLocalRev >= 0;
282
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127 ManifestRevision mr;
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128 if (baseRevisionCollector != null) {
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129 mr = baseRevisionCollector.raw(changelogLocalRev);
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130 } else {
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131 mr = new ManifestRevision(null, null);
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132 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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133 }
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134 return mr;
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135 }
354
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136
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137 private void initDirstateParentManifest() throws HgInvalidControlFileException {
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138 Nodeid dirstateParent = getDirstateImpl().parents().first();
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139 if (dirstateParent.isNull()) {
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140 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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141 } else {
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142 int changeloRevIndex = repo.getChangelog().getRevisionIndex(dirstateParent);
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143 dirstateParentManifest = getManifest(changeloRevIndex);
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144 }
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145 }
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146
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147 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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148 // 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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149 private ManifestRevision getDirstateParentManifest() {
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150 return dirstateParentManifest;
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151 }
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152
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153 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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154 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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155 public void walk(int baseRevision, HgStatusInspector inspector) throws HgInvalidControlFileException, IOException {
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156 if (HgInternals.wrongRevisionIndex(baseRevision) || baseRevision == BAD_REVISION) {
218
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157 throw new IllegalArgumentException(String.valueOf(baseRevision));
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158 }
362
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159 if (getDirstateImpl() == null) {
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160 getDirstate();
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161 }
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162 if (getDirstateParentManifest() == null) {
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163 initDirstateParentManifest();
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164 }
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165 ManifestRevision collect = null; // non null indicates we compare against base revision
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166 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
282
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167 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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168 collect = getManifest(baseRevision);
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169 baseRevFiles = new TreeSet<Path>(collect.files());
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170 }
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171 if (inspector instanceof HgStatusCollector.Record) {
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172 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
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173 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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174 // because the change might be actually in working copy. Nevertheless,
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175 // as long as no nodeids can be provided for WC, seems reasonable to report
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176 // latest known nodeid change (although at the moment this is not used and
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177 // is done mostly not to leave stale initialization in the Record)
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178 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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179 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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180 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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181 } else {
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182 rev1 = baseRevision;
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183 }
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184 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
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185 }
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186 final HgIgnore hgIgnore = repo.getIgnore();
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187 repoWalker.reset();
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188 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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189 final HgDirstate ds = getDirstateImpl();
293
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190 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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191 while (repoWalker.hasNext()) {
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192 repoWalker.next();
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193 final Path fname = getPathPool().path(repoWalker.name());
287
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194 FileInfo f = repoWalker.file();
293
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195 Path knownInDirstate;
226
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196 if (!f.exists()) {
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197 // file coming from iterator doesn't exist.
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198 if ((knownInDirstate = ds.known(fname)) != null) {
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199 // found in dirstate
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200 processed.add(knownInDirstate);
294
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201 if (ds.checkRemoved(knownInDirstate) == null) {
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202 inspector.missing(knownInDirstate);
226
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203 } else {
294
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204 inspector.removed(knownInDirstate);
226
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205 }
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206 // do not report it as removed later
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207 if (collect != null) {
294
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208 baseRevFiles.remove(knownInDirstate);
226
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209 }
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210 } else {
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211 // chances are it was known in baseRevision. We may rely
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212 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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213 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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214 if (collect != null && baseRevFiles.remove(fname)) {
226
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215 inspector.removed(fname);
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216 } else {
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217 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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parents: 219
diff changeset
218 // as unknown. Command-line HG aborts "system can't find the file specified"
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parents: 219
diff changeset
219 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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diff changeset
220 // however, as it's unlikely to get unexisting files from FileIterator, and
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diff changeset
221 // its better to see erroneous file status rather than not to see any (which is too easy
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diff changeset
222 // to overlook), I think unknown() is reasonable approach here
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diff changeset
223 inspector.unknown(fname);
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diff changeset
224 }
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diff changeset
225 }
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diff changeset
226 continue;
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diff changeset
227 }
293
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diff changeset
228 if ((knownInDirstate = ds.known(fname)) != null) {
226
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diff changeset
229 // tracked file.
58
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230 // modified, added, removed, clean
293
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diff changeset
231 processed.add(knownInDirstate);
58
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diff changeset
232 if (collect != null) { // need to check against base revision, not FS file
294
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diff changeset
233 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, knownInDirstate, f, inspector);
58
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234 } else {
294
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diff changeset
235 checkLocalStatusAgainstFile(knownInDirstate, f, inspector);
58
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236 }
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237 } else {
226
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diff changeset
238 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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239 inspector.ignored(fname);
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240 } else {
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diff changeset
241 inspector.unknown(fname);
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242 }
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243 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
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244 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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245 // yield two statuses for the same file)
58
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246 }
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247 }
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248 if (collect != null) {
285
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diff changeset
249 for (Path fromBase : baseRevFiles) {
226
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250 if (repoWalker.inScope(fromBase)) {
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251 inspector.removed(fromBase);
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252 }
58
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253 }
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254 }
293
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255 knownEntries.removeAll(processed);
284
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256 for (Path m : knownEntries) {
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257 if (!repoWalker.inScope(m)) {
226
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258 // do not report as missing/removed those FileIterator doesn't care about.
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diff changeset
259 continue;
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diff changeset
260 }
74
6f1b88693d48 Complete refactoring to org.tmatesoft
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diff changeset
261 // missing known file from a working dir
293
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diff changeset
262 if (ds.checkRemoved(m) == null) {
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diff changeset
263 // not removed from the repository = 'deleted'
284
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264 inspector.missing(m);
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diff changeset
265 } else {
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diff changeset
266 // 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
267 // 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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diff changeset
268 if (collect == null || baseRevFiles.contains(m)) {
284
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diff changeset
269 inspector.removed(m);
76
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diff changeset
270 }
58
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271 }
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272 }
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273 }
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parents:
diff changeset
274
362
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diff changeset
275 public HgStatusCollector.Record status(int baseRevision) throws HgInvalidControlFileException, IOException {
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
276 HgStatusCollector.Record rv = new HgStatusCollector.Record();
58
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277 walk(baseRevision, rv);
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278 return rv;
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279 }
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280
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281 //********************************************
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282
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283
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
284 private void checkLocalStatusAgainstFile(Path fname, FileInfo f, HgStatusInspector inspector) {
58
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285 HgDirstate.Record r;
348
a0864b2892cd Expose errors reading mercurial control files with exception
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diff changeset
286 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
58
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287 // either clean or modified
290
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parents: 287
diff changeset
288 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
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diff changeset
289 if (timestampEqual && sizeEqual) {
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diff changeset
290 inspector.clean(fname);
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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diff changeset
291 } else if (!sizeEqual && r.size() >= 0) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
292 inspector.modified(fname);
58
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diff changeset
293 } else {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
294 // size is the same or unknown, and, perhaps, different timestamp
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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parents: 117
diff changeset
295 // check actual content to avoid false modified files
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diff changeset
296 HgDataFile df = repo.getFileNode(fname);
337
f377f833b780 Issue 17: temporary code to nail down the problem
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parents: 334
diff changeset
297 if (!df.exists()) {
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
298 String msg = String.format("File %s known as normal in dirstate (%d, %d), doesn't exist at %s", fname, r.modificationTime(), r.size(), repo.getStoragePath(df));
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
299 throw new HgBadStateException(msg);
f377f833b780 Issue 17: temporary code to nail down the problem
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parents: 334
diff changeset
300 }
285
6dbbc53fc46d Use Path instead of plain String for manifest file names
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diff changeset
301 Nodeid rev = getDirstateParentManifest().nodeid(fname);
314
fb74133d2025 Issue 14: NPE for merged dirstate and a file missed in dirstate's first parent
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parents: 295
diff changeset
302 // rev might be null here if fname comes to dirstate as a result of a merge operation
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parents: 295
diff changeset
303 // where one of the parents (first parent) had no fname file, but second parent had.
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parents: 295
diff changeset
304 // E.g. fork revision 3, revision 4 gets .hgtags, few modifications and merge(3,12)
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parents: 295
diff changeset
305 // see Issue 14 for details
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parents: 295
diff changeset
306 if (rev == null || !areTheSame(f, df, rev)) {
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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parents: 117
diff changeset
307 inspector.modified(df.getPath());
180
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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parents: 157
diff changeset
308 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
309 inspector.clean(df.getPath());
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
310 }
58
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diff changeset
311 }
348
a0864b2892cd Expose errors reading mercurial control files with exception
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diff changeset
312 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
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diff changeset
313 if (r.copySource() == null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
314 inspector.added(fname);
58
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diff changeset
315 } else {
290
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diff changeset
316 inspector.copied(r.copySource(), fname);
58
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diff changeset
317 }
348
a0864b2892cd Expose errors reading mercurial control files with exception
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diff changeset
318 } else if ((r = getDirstateImpl().checkRemoved(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
319 inspector.removed(fname);
348
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diff changeset
320 } else if ((r = getDirstateImpl().checkMerged(fname)) != null) {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
321 inspector.modified(fname);
58
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322 }
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diff changeset
323 }
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diff changeset
324
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
325 // 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
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parents: 285
diff changeset
326 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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diff changeset
327 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
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328 Nodeid nid1 = collect.nodeid(fname);
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329 HgManifest.Flags flags = collect.flags(fname);
58
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330 HgDirstate.Record r;
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331 if (nid1 == null) {
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332 // normal: added?
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333 // added: not known at the time of baseRevision, shall report
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334 // merged: was not known, report as added?
348
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335 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
157
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336 try {
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337 Path origin = HgStatusCollector.getOriginIfCopy(repo, fname, baseRevNames, baseRevision);
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338 if (origin != null) {
226
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339 inspector.copied(getPathPool().path(origin), fname);
157
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340 return;
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341 }
354
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342 } catch (HgException ex) {
360
150500515714 Report non-critical errors during status operation to handler/inspector
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343 // report failure and continue status collection
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344 inspector.invalid(fname, ex);
90
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345 }
348
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346 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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347 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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348 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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349 inspector.copied(r.copySource(), fname);
58
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350 return;
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351 }
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352 // fall-through, report as added
348
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353 } else if (getDirstateImpl().checkRemoved(fname) != null) {
58
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354 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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355 return;
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356 }
226
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357 inspector.added(fname);
58
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358 } else {
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359 // was known; check whether clean or modified
285
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360 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
348
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361 if ((r = getDirstateImpl().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
282
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362 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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363 // same code as in #checkLocalStatusAgainstFile
290
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364 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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365 boolean handled = false;
280
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366 if (timestampEqual && sizeEqual) {
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367 inspector.clean(fname);
282
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368 handled = true;
290
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369 } else if (!sizeEqual && r.size() >= 0) {
280
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370 inspector.modified(fname);
282
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371 handled = true;
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372 } else if (!todoCheckFlagsEqual(f, flags)) {
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373 // seems like flags have changed, no reason to check content further
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374 inspector.modified(fname);
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375 handled = true;
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376 }
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diff changeset
377 if (handled) {
285
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diff changeset
378 baseRevNames.remove(fname); // consumed, processed, handled.
280
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diff changeset
379 return;
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diff changeset
380 }
282
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diff changeset
381 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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diff changeset
382 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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383 // FALL THROUGH
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diff changeset
384 }
348
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diff changeset
385 if (r != null || (r = getDirstateImpl().checkMerged(fname)) != null || (r = getDirstateImpl().checkAdded(fname)) != null) {
282
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diff changeset
386 // check actual content to see actual changes
280
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diff changeset
387 // 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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388 // either clean or modified
282
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diff changeset
389 HgDataFile fileNode = repo.getFileNode(fname);
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diff changeset
390 if (areTheSame(f, fileNode, nid1)) {
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diff changeset
391 inspector.clean(fname);
58
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392 } else {
282
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393 inspector.modified(fname);
58
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394 }
285
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diff changeset
395 baseRevNames.remove(fname); // consumed, processed, handled.
348
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396 } 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
397 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
398 inspector.removed(fname);
285
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diff changeset
399 baseRevNames.remove(fname); // consumed, processed, handled.
58
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400 }
226
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diff changeset
401 // only those left in baseRevNames after processing are reported as removed
58
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402 }
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parents:
diff changeset
403
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
404 // 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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405 // 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
406 // 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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407 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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diff changeset
408 // then it's sufficient to check parents from dirstate, and if they do not match parents from file's baseRevision (non matching parents means different nodeids).
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diff changeset
409 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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410 }
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diff changeset
411
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
412 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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diff changeset
413 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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diff changeset
414 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
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diff changeset
415 boolean ioFailed = false;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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diff changeset
416 try {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
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diff changeset
417 int fileRevisionIndex = dataFile.getRevisionIndex(revision);
157
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418 // need content with metadata striped off - although theoretically chances are metadata may be different,
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419 // WC doesn't have it anyway
367
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diff changeset
420 dataFile.content(fileRevisionIndex, bac);
157
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diff changeset
421 } catch (CancelledException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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422 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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423 } catch (HgException ex) {
323
4c7e3ba67213 Exception when analyzing metadata of an empty renamed file
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diff changeset
424 repo.getContext().getLog().warn(getClass(), ex, null);
157
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diff changeset
425 ioFailed = true;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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diff changeset
426 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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diff changeset
427 return !ioFailed && areTheSame(f, bac.toArray(), dataFile.getPath());
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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parents: 148
diff changeset
428 }
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
429
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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parents: 285
diff changeset
430 private boolean areTheSame(FileInfo f, final byte[] data, Path p) {
ed6b74a58c66 Use FileInfo abstraction with necessary subset of File functionality instead of File to facilitate other effective file system iterators
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parents: 285
diff changeset
431 ReadableByteChannel is = null;
295
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diff changeset
432 class Check implements ByteChannel {
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diff changeset
433 final boolean debug = repo.getContext().getLog().isDebug();
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diff changeset
434 boolean sameSoFar = true;
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diff changeset
435 int x = 0;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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parents: 218
diff changeset
436
295
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diff changeset
437 public int write(ByteBuffer buffer) {
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diff changeset
438 for (int i = buffer.remaining(); i > 0; i--, x++) {
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parents: 294
diff changeset
439 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
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diff changeset
440 if (debug) {
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diff changeset
441 byte[] xx = new byte[15];
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diff changeset
442 if (buffer.position() > 5) {
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diff changeset
443 buffer.position(buffer.position() - 5);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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parents: 102
diff changeset
444 }
334
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
445 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
446 String exp;
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
447 if (x < data.length) {
15e1961719f2 Investigate sporadic BufferUnderflowException
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parents: 323
diff changeset
448 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
449 } else {
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
450 int offset = max(0, x - 4);
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
451 exp = new String(data, offset, min(data.length - offset, 20));
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
452 }
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
453 repo.getContext().getLog().debug(getClass(), "expected >>%s<< but got >>%s<<", exp, new String(xx));
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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parents: 102
diff changeset
454 }
295
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diff changeset
455 sameSoFar = false;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
456 break;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
457 }
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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parents: 102
diff changeset
458 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
459 buffer.position(buffer.limit()); // mark as read
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diff changeset
460 return buffer.limit();
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parents: 294
diff changeset
461 }
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diff changeset
462
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diff changeset
463 public boolean sameSoFar() {
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diff changeset
464 return sameSoFar;
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parents: 294
diff changeset
465 }
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diff changeset
466 public boolean ultimatelyTheSame() {
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467 return sameSoFar && x == data.length;
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diff changeset
468 }
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diff changeset
469 };
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diff changeset
470 Check check = new Check();
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parents: 294
diff changeset
471 try {
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diff changeset
472 is = f.newInputChannel();
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diff changeset
473 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
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diff changeset
474 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
475 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
476 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
477 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
478 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
479 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
480 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
481 }
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
482 // 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
483 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
484 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
485 } 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
486 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
487 }
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
488 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
489 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
490 }
295
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diff changeset
491 while (is.read(fb) != -1 && check.sameSoFar()) {
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diff changeset
492 fb.flip();
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diff changeset
493 filters.write(fb);
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diff changeset
494 fb.compact();
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parents: 294
diff changeset
495 }
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diff changeset
496 return check.ultimatelyTheSame();
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diff changeset
497 } catch (CancelledException ex) {
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parents: 294
diff changeset
498 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
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diff changeset
499 return check.ultimatelyTheSame();
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diff changeset
500 } catch (IOException ex) {
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diff changeset
501 repo.getContext().getLog().warn(getClass(), ex, null);
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parents: 294
diff changeset
502 } finally {
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diff changeset
503 if (is != null) {
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parents: 294
diff changeset
504 try {
287
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parents: 285
diff changeset
505 is.close();
295
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diff changeset
506 } catch (IOException ex) {
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diff changeset
507 repo.getContext().getLog().info(getClass(), ex, null);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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parents: 102
diff changeset
508 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
509 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
510 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
511 return false;
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
512 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
513
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
514 private static boolean todoCheckFlagsEqual(FileInfo f, HgManifest.Flags originalManifestFlags) {
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
515 // FIXME implement
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 275
diff changeset
516 return true;
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
517 }
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
518
229
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parents: 226
diff changeset
519 /**
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
520 * Configure status collector to consider only subset of a working copy tree. Tries to be as effective as possible, and to
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
521 * traverse only relevant part of working copy on the filesystem.
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parents: 226
diff changeset
522 *
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
523 * @param hgRepo repository
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diff changeset
524 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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diff changeset
525 *
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
526 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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diff changeset
527 */
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diff changeset
528 @Experimental(reason="Provisional API")
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parents: 226
diff changeset
529 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
530 ArrayList<Path> f = new ArrayList<Path>(5);
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parents: 226
diff changeset
531 ArrayList<Path> d = new ArrayList<Path>(5);
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parents: 226
diff changeset
532 for (Path p : paths) {
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parents: 226
diff changeset
533 if (p.isDirectory()) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
534 d.add(p);
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
535 } else {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
536 f.add(p);
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
537 }
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 226
diff changeset
538 }
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
539 // final Path[] dirs = f.toArray(new Path[d.size()]);
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
540 if (d.isEmpty()) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
541 final Path[] files = f.toArray(new Path[f.size()]);
237
6e1373b54e9b Allow access to working copy content through HgDataFile. Give access to repository's working dir
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parents: 229
diff changeset
542 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
543 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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544 }
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545 //
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546
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547 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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548 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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549 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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550 }
229
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551
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552 /**
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553 * Configure collector object to calculate status for matching files only.
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554 * This method may be less effective than explicit list of files as it iterates over whole repository
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555 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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556 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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557 *
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558 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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559 */
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560 @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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561 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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562 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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563 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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564 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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565 // 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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566 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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567 // 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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568 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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569 // method above/
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570 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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571 }
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572
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573 private static class FileListIterator implements FileIterator {
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574 private final File dir;
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575 private final Path[] paths;
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576 private int index;
287
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577 private RegularFileInfo nextFile;
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578
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579 public FileListIterator(File startDir, Path... files) {
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580 dir = startDir;
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581 paths = files;
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582 reset();
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583 }
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584
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585 public void reset() {
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586 index = -1;
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587 nextFile = new RegularFileInfo();
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588 }
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589
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590 public boolean hasNext() {
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591 return paths.length > 0 && index < paths.length-1;
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592 }
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593
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594 public void next() {
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595 index++;
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596 if (index == paths.length) {
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597 throw new NoSuchElementException();
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598 }
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599 nextFile.init(new File(dir, paths[index].toString()));
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600 }
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601
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602 public Path name() {
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603 return paths[index];
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604 }
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605
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606 public FileInfo file() {
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607 return nextFile;
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608 }
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609
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610 public boolean inScope(Path file) {
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611 for (int i = 0; i < paths.length; i++) {
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612 if (paths[i].equals(file)) {
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613 return true;
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614 }
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615 }
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616 return false;
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617 }
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618 }
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619
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620 private static class FileIteratorFilter implements FileIterator {
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621 private final Path.Matcher filter;
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622 private final FileIterator walker;
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623 private boolean didNext = false;
226
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624
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625 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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626 assert fileWalker != null;
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627 assert filterMatcher != null;
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628 filter = filterMatcher;
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629 walker = fileWalker;
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630 }
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631
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632 public void reset() throws IOException {
226
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633 walker.reset();
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634 }
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635
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636 public boolean hasNext() throws IOException {
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637 while (walker.hasNext()) {
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638 walker.next();
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639 if (filter.accept(walker.name())) {
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640 didNext = true;
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641 return true;
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642 }
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643 }
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644 return false;
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645 }
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646
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647 public void next() throws IOException {
229
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648 if (didNext) {
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649 didNext = false;
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650 } else {
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651 if (!hasNext()) {
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652 throw new NoSuchElementException();
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653 }
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654 }
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655 }
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656
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657 public Path name() {
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658 return walker.name();
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659 }
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660
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661 public FileInfo file() {
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662 return walker.file();
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663 }
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664
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665 public boolean inScope(Path file) {
229
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 226
diff changeset
666 return filter.accept(file);
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
667 }
26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
668 }
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
669 }