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annotate src/org/tmatesoft/hg/repo/HgWorkingCopyStatusCollector.java @ 359:1d9bcab9c50f

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More or less stable functionality, before final API cleanup/changes
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 08 Dec 2011 15:34:13 +0100
parents 91d75e1bac9f
children 150500515714
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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68 public HgWorkingCopyStatusCollector(HgRepository hgRepo) {
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69 this(hgRepo, new HgInternals(hgRepo).createWorkingDirWalker(null));
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70 }
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72 // FIXME document cons
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73 public HgWorkingCopyStatusCollector(HgRepository hgRepo, FileIterator hgRepoWalker) {
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74 repo = hgRepo;
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75 repoWalker = hgRepoWalker;
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76 }
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78 /**
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79 * Optionally, supply a collector instance that may cache (or have already cached) base revision
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80 * @param sc may be null
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81 */
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82 public void setBaseRevisionCollector(HgStatusCollector sc) {
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83 baseRevisionCollector = sc;
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84 }
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85
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86 /*package-local*/ PathPool getPathPool() {
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87 if (pathPool == null) {
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88 if (baseRevisionCollector == null) {
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89 pathPool = new PathPool(new PathRewrite.Empty());
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90 } else {
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91 return baseRevisionCollector.getPathPool();
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92 }
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93 }
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94 return pathPool;
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95 }
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96
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97 public void setPathPool(PathPool pathPool) {
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98 this.pathPool = pathPool;
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99 }
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100
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101 /**
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102 * Access to directory state information this collector uses.
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103 * @return directory state holder, never <code>null</code>
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104 */
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105 public HgDirstate getDirstate() throws HgInvalidControlFileException {
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106 if (dirstate == null) {
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107 dirstate = repo.loadDirstate(getPathPool());
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108 }
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109 return dirstate;
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110 }
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111
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112 private HgDirstate getDirstateImpl() {
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113 return dirstate;
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114 }
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115
282
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116 private ManifestRevision getManifest(int changelogLocalRev) {
284
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117 assert changelogLocalRev >= 0;
282
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118 ManifestRevision mr;
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119 if (baseRevisionCollector != null) {
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120 mr = baseRevisionCollector.raw(changelogLocalRev);
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121 } else {
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122 mr = new ManifestRevision(null, null);
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123 repo.getManifest().walk(changelogLocalRev, changelogLocalRev, mr);
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124 }
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125 return mr;
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126 }
354
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127
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128 private void initDirstateParentManifest() throws HgInvalidControlFileException {
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129 Nodeid dirstateParent = getDirstateImpl().parents().first();
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130 if (dirstateParent.isNull()) {
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131 dirstateParentManifest = baseRevisionCollector != null ? baseRevisionCollector.raw(-1) : HgStatusCollector.createEmptyManifestRevision();
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132 } else {
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133 int changelogLocalRev = repo.getChangelog().getLocalRevision(dirstateParent);
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134 dirstateParentManifest = getManifest(changelogLocalRev);
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135 }
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136 }
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137
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138 // WC not necessarily points to TIP, but may be result of update to any previous revision.
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139 // In such case, we need to compare local files not to their TIP content, but to specific version at the time of selected revision
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140 private ManifestRevision getDirstateParentManifest() {
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141 return dirstateParentManifest;
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142 }
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143
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144 // may be invoked few times, TIP or WORKING_COPY indicate comparison shall be run against working copy parent
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145 // NOTE, use of TIP constant requires certain care. TIP here doesn't mean latest cset, but actual working copy parent.
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146 public void walk(int baseRevision, HgStatusInspector inspector) throws IOException {
282
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147 if (HgInternals.wrongLocalRevision(baseRevision) || baseRevision == BAD_REVISION) {
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148 throw new IllegalArgumentException(String.valueOf(baseRevision));
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149 }
354
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150 try {
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151 if (getDirstateImpl() == null) {
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152 // XXX this is a hack to avoid declaring throws for the #walk() at the moment
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153 // once I decide whether to have mediator that collects errors or to use exceptions here
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154 // this hack shall be removed in favor of either severe error in mediator or a re-thrown exception.
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155 getDirstate();
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156 }
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157 if (getDirstateParentManifest() == null) {
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158 initDirstateParentManifest();
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159 }
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160 } catch (HgInvalidControlFileException ex) {
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161 repo.getContext().getLog().error(getClass(), ex, "Failed to initialize with dirstate information");
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162 return;
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163 }
282
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164 ManifestRevision collect = null; // non null indicates we compare against base revision
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165 Set<Path> baseRevFiles = Collections.emptySet(); // files from base revision not affected by status calculation
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166 if (baseRevision != TIP && baseRevision != WORKING_COPY) {
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167 collect = getManifest(baseRevision);
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168 baseRevFiles = new TreeSet<Path>(collect.files());
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169 }
94
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170 if (inspector instanceof HgStatusCollector.Record) {
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171 HgStatusCollector sc = baseRevisionCollector == null ? new HgStatusCollector(repo) : baseRevisionCollector;
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172 // nodeidAfterChange(dirstate's parent) doesn't make too much sense,
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173 // because the change might be actually in working copy. Nevertheless,
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174 // as long as no nodeids can be provided for WC, seems reasonable to report
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175 // latest known nodeid change (although at the moment this is not used and
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176 // is done mostly not to leave stale initialization in the Record)
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177 int rev1,rev2 = getDirstateParentManifest().changesetLocalRev();
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178 if (baseRevision == TIP || baseRevision == WORKING_COPY) {
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179 rev1 = rev2 - 1; // just use revision prior to dirstate's parent
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180 } else {
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181 rev1 = baseRevision;
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182 }
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183 ((HgStatusCollector.Record) inspector).init(rev1, rev2, sc);
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184 }
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185 final HgIgnore hgIgnore = repo.getIgnore();
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186 repoWalker.reset();
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187 TreeSet<Path> processed = new TreeSet<Path>(); // names of files we handled as they known to Dirstate (not FileIterator)
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188 final HgDirstate ds = getDirstateImpl();
293
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189 TreeSet<Path> knownEntries = ds.all(); // here just to get dirstate initialized
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190 while (repoWalker.hasNext()) {
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191 repoWalker.next();
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192 final Path fname = getPathPool().path(repoWalker.name());
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193 FileInfo f = repoWalker.file();
293
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194 Path knownInDirstate;
226
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195 if (!f.exists()) {
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196 // file coming from iterator doesn't exist.
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197 if ((knownInDirstate = ds.known(fname)) != null) {
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198 // found in dirstate
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199 processed.add(knownInDirstate);
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200 if (ds.checkRemoved(knownInDirstate) == null) {
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201 inspector.missing(knownInDirstate);
226
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202 } else {
294
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203 inspector.removed(knownInDirstate);
226
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204 }
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205 // do not report it as removed later
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206 if (collect != null) {
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207 baseRevFiles.remove(knownInDirstate);
226
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208 }
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209 } else {
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210 // chances are it was known in baseRevision. We may rely
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211 // that later iteration over baseRevFiles leftovers would yield correct Removed,
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212 // but it doesn't hurt to be explicit (provided we know fname *is* inScope of the FileIterator
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213 if (collect != null && baseRevFiles.remove(fname)) {
226
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214 inspector.removed(fname);
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diff changeset
215 } else {
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216 // not sure I shall report such files (i.e. arbitrary name coming from FileIterator)
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217 // as unknown. Command-line HG aborts "system can't find the file specified"
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218 // in similar case (against wc), or just gives nothing if --change <rev> is specified.
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219 // however, as it's unlikely to get unexisting files from FileIterator, and
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220 // its better to see erroneous file status rather than not to see any (which is too easy
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diff changeset
221 // to overlook), I think unknown() is reasonable approach here
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222 inspector.unknown(fname);
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223 }
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diff changeset
224 }
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diff changeset
225 continue;
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diff changeset
226 }
293
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227 if ((knownInDirstate = ds.known(fname)) != null) {
226
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228 // tracked file.
58
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229 // modified, added, removed, clean
293
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230 processed.add(knownInDirstate);
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231 if (collect != null) { // need to check against base revision, not FS file
294
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diff changeset
232 checkLocalStatusAgainstBaseRevision(baseRevFiles, collect, baseRevision, knownInDirstate, f, inspector);
58
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233 } else {
294
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234 checkLocalStatusAgainstFile(knownInDirstate, f, inspector);
58
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235 }
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236 } else {
226
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237 if (hgIgnore.isIgnored(fname)) { // hgignore shall be consulted only for non-tracked files
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238 inspector.ignored(fname);
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239 } else {
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240 inspector.unknown(fname);
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241 }
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242 // the file is not tracked. Even if it's known at baseRevision, we don't need to remove it
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243 // from baseRevFiles, it might need to be reported as removed as well (cmdline client does
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244 // yield two statuses for the same file)
58
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245 }
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246 }
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247 if (collect != null) {
285
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248 for (Path fromBase : baseRevFiles) {
226
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249 if (repoWalker.inScope(fromBase)) {
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250 inspector.removed(fromBase);
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251 }
58
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252 }
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253 }
293
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254 knownEntries.removeAll(processed);
284
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255 for (Path m : knownEntries) {
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256 if (!repoWalker.inScope(m)) {
226
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257 // do not report as missing/removed those FileIterator doesn't care about.
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258 continue;
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diff changeset
259 }
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260 // missing known file from a working dir
293
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261 if (ds.checkRemoved(m) == null) {
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262 // not removed from the repository = 'deleted'
284
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263 inspector.missing(m);
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264 } else {
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diff changeset
265 // 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
266 // 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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267 if (collect == null || baseRevFiles.contains(m)) {
284
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268 inspector.removed(m);
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269 }
58
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270 }
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271 }
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272 }
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273
350
33eaed1ad130 Allow FileIterator report any errors from the underlaying file system up to the client
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diff changeset
274 public HgStatusCollector.Record status(int baseRevision) throws IOException {
94
af1f3b78b918 *StatusCollector renamed to Hg*StatusCollector
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diff changeset
275 HgStatusCollector.Record rv = new HgStatusCollector.Record();
58
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276 walk(baseRevision, rv);
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277 return rv;
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278 }
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279
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280 //********************************************
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281
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282
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
283 private void checkLocalStatusAgainstFile(Path fname, FileInfo f, HgStatusInspector inspector) {
58
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284 HgDirstate.Record r;
348
a0864b2892cd Expose errors reading mercurial control files with exception
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diff changeset
285 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
58
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286 // either clean or modified
290
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diff changeset
287 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
288 if (timestampEqual && sizeEqual) {
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
289 inspector.clean(fname);
290
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diff changeset
290 } 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
291 inspector.modified(fname);
58
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292 } else {
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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diff changeset
293 // size is the same or unknown, and, perhaps, different timestamp
120
b19f0ac5ee62 Check against working copy shall expect non-persistent modifications done by filters and not report such files as modified
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diff changeset
294 // check actual content to avoid false modified files
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diff changeset
295 HgDataFile df = repo.getFileNode(fname);
337
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diff changeset
296 if (!df.exists()) {
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
297 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
298 throw new HgBadStateException(msg);
f377f833b780 Issue 17: temporary code to nail down the problem
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diff changeset
299 }
285
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diff changeset
300 Nodeid rev = getDirstateParentManifest().nodeid(fname);
314
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parents: 295
diff changeset
301 // rev might be null here if fname comes to dirstate as a result of a merge operation
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diff changeset
302 // where one of the parents (first parent) had no fname file, but second parent had.
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diff changeset
303 // E.g. fork revision 3, revision 4 gets .hgtags, few modifications and merge(3,12)
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diff changeset
304 // see Issue 14 for details
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diff changeset
305 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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diff changeset
306 inspector.modified(df.getPath());
180
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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parents: 157
diff changeset
307 } else {
42fe9a94b9d0 Report files as clean when no difference but timestamp found
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diff changeset
308 inspector.clean(df.getPath());
120
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diff changeset
309 }
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310 }
348
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diff changeset
311 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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diff changeset
312 if (r.copySource() == null) {
280
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diff changeset
313 inspector.added(fname);
58
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314 } else {
290
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diff changeset
315 inspector.copied(r.copySource(), fname);
58
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316 }
348
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diff changeset
317 } else if ((r = getDirstateImpl().checkRemoved(fname)) != null) {
280
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diff changeset
318 inspector.removed(fname);
348
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diff changeset
319 } 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
320 inspector.modified(fname);
58
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321 }
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322 }
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323
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diff changeset
324 // 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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diff changeset
325 private void checkLocalStatusAgainstBaseRevision(Set<Path> baseRevNames, ManifestRevision collect, int baseRevision, Path fname, FileInfo f, HgStatusInspector inspector) {
58
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326 // fname is in the dirstate, either Normal, Added, Removed or Merged
285
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327 Nodeid nid1 = collect.nodeid(fname);
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328 HgManifest.Flags flags = collect.flags(fname);
58
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329 HgDirstate.Record r;
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330 if (nid1 == null) {
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331 // normal: added?
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332 // added: not known at the time of baseRevision, shall report
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333 // merged: was not known, report as added?
348
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334 if ((r = getDirstateImpl().checkNormal(fname)) != null) {
157
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335 try {
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336 Path origin = HgStatusCollector.getOriginIfCopy(repo, fname, baseRevNames, baseRevision);
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337 if (origin != null) {
226
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338 inspector.copied(getPathPool().path(origin), fname);
157
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339 return;
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340 }
354
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341 } catch (HgException ex) {
157
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342 ex.printStackTrace();
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343 // FIXME report to a mediator, continue status collection
90
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344 }
348
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345 } else if ((r = getDirstateImpl().checkAdded(fname)) != null) {
290
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346 if (r.copySource() != null && baseRevNames.contains(r.copySource())) {
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347 baseRevNames.remove(r.copySource()); // XXX surely I shall not report rename source as Removed?
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348 inspector.copied(r.copySource(), fname);
58
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349 return;
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350 }
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351 // fall-through, report as added
348
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352 } else if (getDirstateImpl().checkRemoved(fname) != null) {
58
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353 // removed: removed file was not known at the time of baseRevision, and we should not report it as removed
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354 return;
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355 }
226
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356 inspector.added(fname);
58
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357 } else {
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358 // was known; check whether clean or modified
285
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359 Nodeid nidFromDirstate = getDirstateParentManifest().nodeid(fname);
348
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360 if ((r = getDirstateImpl().checkNormal(fname)) != null && nid1.equals(nidFromDirstate)) {
282
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361 // regular file, was the same up to WC initialization. Check if was modified since, and, if not, report right away
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362 // same code as in #checkLocalStatusAgainstFile
290
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363 final boolean timestampEqual = f.lastModified() == r.modificationTime(), sizeEqual = r.size() == f.length();
282
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364 boolean handled = false;
280
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365 if (timestampEqual && sizeEqual) {
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366 inspector.clean(fname);
282
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367 handled = true;
290
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368 } else if (!sizeEqual && r.size() >= 0) {
280
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369 inspector.modified(fname);
282
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370 handled = true;
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371 } else if (!todoCheckFlagsEqual(f, flags)) {
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diff changeset
372 // seems like flags have changed, no reason to check content further
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diff changeset
373 inspector.modified(fname);
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374 handled = true;
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375 }
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diff changeset
376 if (handled) {
285
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diff changeset
377 baseRevNames.remove(fname); // consumed, processed, handled.
280
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diff changeset
378 return;
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diff changeset
379 }
282
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diff changeset
380 // otherwise, shall check actual content (size not the same, or unknown (-1 or -2), or timestamp is different,
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diff changeset
381 // or nodeid in dirstate is different, but local change might have brought it back to baseRevision state)
280
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diff changeset
382 // FALL THROUGH
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diff changeset
383 }
348
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diff changeset
384 if (r != null || (r = getDirstateImpl().checkMerged(fname)) != null || (r = getDirstateImpl().checkAdded(fname)) != null) {
282
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diff changeset
385 // check actual content to see actual changes
280
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diff changeset
386 // 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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387 // either clean or modified
282
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diff changeset
388 HgDataFile fileNode = repo.getFileNode(fname);
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diff changeset
389 if (areTheSame(f, fileNode, nid1)) {
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diff changeset
390 inspector.clean(fname);
58
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diff changeset
391 } else {
282
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diff changeset
392 inspector.modified(fname);
58
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393 }
285
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diff changeset
394 baseRevNames.remove(fname); // consumed, processed, handled.
348
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diff changeset
395 } else if (getDirstateImpl().checkRemoved(fname) != null) {
226
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diff changeset
396 // was known, and now marked as removed, report it right away, do not rely on baseRevNames processing later
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diff changeset
397 inspector.removed(fname);
285
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398 baseRevNames.remove(fname); // consumed, processed, handled.
58
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399 }
226
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diff changeset
400 // only those left in baseRevNames after processing are reported as removed
58
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401 }
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parents:
diff changeset
402
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
403 // 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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404 // 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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parents:
diff changeset
405 // 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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parents:
diff changeset
406 // changeset nodeid + hash(actual content) => entry (Nodeid) in the next Manifest
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diff changeset
407 // 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
408 // The question is whether original Hg treats this case (same content, different parents and hence nodeids) as 'modified' or 'clean'
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409 }
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diff changeset
410
287
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diff changeset
411 private boolean areTheSame(FileInfo f, HgDataFile dataFile, Nodeid revision) {
157
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412 // XXX consider adding HgDataDile.compare(File/byte[]/whatever) operation to optimize comparison
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diff changeset
413 ByteArrayChannel bac = new ByteArrayChannel();
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diff changeset
414 boolean ioFailed = false;
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diff changeset
415 try {
282
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diff changeset
416 int localRevision = dataFile.getLocalRevision(revision);
157
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417 // need content with metadata striped off - although theoretically chances are metadata may be different,
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418 // WC doesn't have it anyway
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diff changeset
419 dataFile.content(localRevision, bac);
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420 } catch (CancelledException ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
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diff changeset
421 // silently ignore - can't happen, ByteArrayChannel is not cancellable
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422 } catch (HgException ex) {
323
4c7e3ba67213 Exception when analyzing metadata of an empty renamed file
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diff changeset
423 repo.getContext().getLog().warn(getClass(), ex, null);
157
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diff changeset
424 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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parents: 148
diff changeset
425 }
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
426 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 148
diff changeset
427 }
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
428
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
429 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
430 ReadableByteChannel is = null;
295
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diff changeset
431 class Check implements ByteChannel {
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diff changeset
432 final boolean debug = repo.getContext().getLog().isDebug();
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diff changeset
433 boolean sameSoFar = true;
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diff changeset
434 int x = 0;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
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parents: 218
diff changeset
435
295
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diff changeset
436 public int write(ByteBuffer buffer) {
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diff changeset
437 for (int i = buffer.remaining(); i > 0; i--, x++) {
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parents: 294
diff changeset
438 if (x >= data.length /*file has been appended*/ || data[x] != buffer.get()) {
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parents: 294
diff changeset
439 if (debug) {
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diff changeset
440 byte[] xx = new byte[15];
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parents: 294
diff changeset
441 if (buffer.position() > 5) {
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diff changeset
442 buffer.position(buffer.position() - 5);
117
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
443 }
334
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
444 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
445 String exp;
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
446 if (x < data.length) {
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
447 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
448 } else {
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
449 int offset = max(0, x - 4);
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
450 exp = new String(data, offset, min(data.length - offset, 20));
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
451 }
15e1961719f2 Investigate sporadic BufferUnderflowException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 323
diff changeset
452 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
453 }
295
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
454 sameSoFar = false;
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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parents: 294
diff changeset
455 break;
219
d63583b47bfa ArrayIndexOutOfBoundsException when file appended. Erroneous 'areTheSame' when trailing were deleted.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
456 }
117
6c0be854d149 Enable filters for status operation (ToRepo case)
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parents: 102
diff changeset
457 }
295
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diff changeset
458 buffer.position(buffer.limit()); // mark as read
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diff changeset
459 return buffer.limit();
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 294
diff changeset
460 }
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diff changeset
461
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diff changeset
462 public boolean sameSoFar() {
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diff changeset
463 return sameSoFar;
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parents: 294
diff changeset
464 }
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diff changeset
465 public boolean ultimatelyTheSame() {
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diff changeset
466 return sameSoFar && x == data.length;
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diff changeset
467 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
468 };
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
469 Check check = new Check();
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parents: 294
diff changeset
470 try {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
471 is = f.newInputChannel();
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parents: 294
diff changeset
472 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
473 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
474 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
475 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
476 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
477 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
478 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
479 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
480 }
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 // 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
482 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
483 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
484 } 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
485 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
486 }
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 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
488 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
489 }
295
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diff changeset
490 while (is.read(fb) != -1 && check.sameSoFar()) {
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diff changeset
491 fb.flip();
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diff changeset
492 filters.write(fb);
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diff changeset
493 fb.compact();
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parents: 294
diff changeset
494 }
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diff changeset
495 return check.ultimatelyTheSame();
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diff changeset
496 } catch (CancelledException ex) {
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parents: 294
diff changeset
497 repo.getContext().getLog().warn(getClass(), ex, "Unexpected cancellation");
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diff changeset
498 return check.ultimatelyTheSame();
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parents: 294
diff changeset
499 } catch (IOException ex) {
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parents: 294
diff changeset
500 repo.getContext().getLog().warn(getClass(), ex, null);
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parents: 294
diff changeset
501 } finally {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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diff changeset
502 if (is != null) {
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parents: 294
diff changeset
503 try {
287
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parents: 285
diff changeset
504 is.close();
295
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diff changeset
505 } catch (IOException ex) {
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diff changeset
506 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
507 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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 return false;
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
511 }
6c0be854d149 Enable filters for status operation (ToRepo case)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
512
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
513 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
514 // FIXME implement
280
35125450c804 Erroneous and slow status for working copies based on non-tip revision
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parents: 275
diff changeset
515 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
516 }
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
229
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 226
diff changeset
518 /**
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
519 * 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
520 * traverse only relevant part of working copy on the filesystem.
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parents: 226
diff changeset
521 *
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
522 * @param hgRepo repository
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parents: 226
diff changeset
523 * @param paths repository-relative files and/or directories. Directories are processed recursively.
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parents: 226
diff changeset
524 *
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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diff changeset
525 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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parents: 226
diff changeset
526 */
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diff changeset
527 @Experimental(reason="Provisional API")
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parents: 226
diff changeset
528 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path... paths) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
529 ArrayList<Path> f = new ArrayList<Path>(5);
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parents: 226
diff changeset
530 ArrayList<Path> d = new ArrayList<Path>(5);
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
531 for (Path p : paths) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
532 if (p.isDirectory()) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
533 d.add(p);
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parents: 226
diff changeset
534 } else {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
535 f.add(p);
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 226
diff changeset
536 }
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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 // 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
539 if (d.isEmpty()) {
1ec6b327a6ac Scope for status reworked: explicit files or a general matcher
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parents: 226
diff changeset
540 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
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 229
diff changeset
541 FileIterator fi = new FileListIterator(hgRepo.getWorkingDir(), files);
229
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542 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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543 }
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544 //
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545
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546 //FileIterator fi = file.isDirectory() ? new DirFileIterator(hgRepo, file) : new FileListIterator(, file);
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547 FileIterator fi = new HgInternals(hgRepo).createWorkingDirWalker(new PathScope(true, paths));
226
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548 return new HgWorkingCopyStatusCollector(hgRepo, fi);
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549 }
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550
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551 /**
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552 * Configure collector object to calculate status for matching files only.
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553 * This method may be less effective than explicit list of files as it iterates over whole repository
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554 * (thus supplied matcher doesn't need to care if directories to files in question are also in scope,
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555 * see {@link FileWalker#FileWalker(File, Path.Source, Path.Matcher)})
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556 *
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557 * @return new instance of {@link HgWorkingCopyStatusCollector}, ready to {@link #walk(int, HgStatusInspector) walk} associated working copy
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558 */
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559 @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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560 public static HgWorkingCopyStatusCollector create(HgRepository hgRepo, Path.Matcher scope) {
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561 FileIterator w = new HgInternals(hgRepo).createWorkingDirWalker(null);
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562 FileIterator wf = (scope == null || scope instanceof Path.Matcher.Any) ? w : new FileIteratorFilter(w, scope);
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563 // the reason I need to iterate over full repo and apply filter is that I have no idea whatsoever about
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564 // 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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565 // to the file unless matcher would also explicitly include "a/", "a/b/" in scope. Since I can't rely
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566 // 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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567 // correct matcher from Path is much like what PathScope does, and can be accessed directly with #create(repo, Path...)
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568 // method above/
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569 return new HgWorkingCopyStatusCollector(hgRepo, wf);
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570 }
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571
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572 private static class FileListIterator implements FileIterator {
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573 private final File dir;
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574 private final Path[] paths;
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575 private int index;
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576 private RegularFileInfo nextFile;
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577
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578 public FileListIterator(File startDir, Path... files) {
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579 dir = startDir;
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580 paths = files;
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581 reset();
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582 }
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583
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584 public void reset() {
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585 index = -1;
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586 nextFile = new RegularFileInfo();
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587 }
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588
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589 public boolean hasNext() {
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590 return paths.length > 0 && index < paths.length-1;
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591 }
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592
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593 public void next() {
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594 index++;
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595 if (index == paths.length) {
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596 throw new NoSuchElementException();
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597 }
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598 nextFile.init(new File(dir, paths[index].toString()));
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599 }
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600
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601 public Path name() {
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602 return paths[index];
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603 }
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604
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605 public FileInfo file() {
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606 return nextFile;
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607 }
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608
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609 public boolean inScope(Path file) {
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610 for (int i = 0; i < paths.length; i++) {
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611 if (paths[i].equals(file)) {
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612 return true;
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613 }
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614 }
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615 return false;
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616 }
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617 }
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618
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619 private static class FileIteratorFilter implements FileIterator {
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620 private final Path.Matcher filter;
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621 private final FileIterator walker;
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622 private boolean didNext = false;
226
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623
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624 public FileIteratorFilter(FileIterator fileWalker, Path.Matcher filterMatcher) {
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625 assert fileWalker != null;
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626 assert filterMatcher != null;
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627 filter = filterMatcher;
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628 walker = fileWalker;
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629 }
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630
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631 public void reset() throws IOException {
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632 walker.reset();
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633 }
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634
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635 public boolean hasNext() throws IOException {
229
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636 while (walker.hasNext()) {
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637 walker.next();
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638 if (filter.accept(walker.name())) {
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639 didNext = true;
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640 return true;
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641 }
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642 }
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643 return false;
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644 }
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645
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646 public void next() throws IOException {
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647 if (didNext) {
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648 didNext = false;
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649 } else {
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650 if (!hasNext()) {
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651 throw new NoSuchElementException();
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652 }
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653 }
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654 }
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655
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656 public Path name() {
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657 return walker.name();
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658 }
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659
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660 public FileInfo file() {
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661 return walker.file();
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662 }
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663
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
664 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
665 return filter.accept(file);
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26ad7827a62d Support status query for a single file or a subdirectory of a repository
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 219
diff changeset
666 }
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 }
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
668 }