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annotate src/org/tmatesoft/hg/internal/Internals.java @ 338:3cfa4d908fc9

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Add options to control DataAccessProvider, allow to turn off use of file memory mapping in particular to solve potential sharing violation (os file handle gets released on MappedByteByffer being GC'd, not on FileChannel.close())
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Nov 2011 04:47:03 +0100
parents a37ce7145c3f
children 5abba41751e6
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.internal;
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19 import static org.tmatesoft.hg.internal.RequiresFile.*;
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21 import java.io.File;
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22 import java.io.FileOutputStream;
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23 import java.io.IOException;
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24 import java.util.ArrayList;
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25 import java.util.List;
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26
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27 import org.tmatesoft.hg.repo.HgInternals;
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28 import org.tmatesoft.hg.repo.HgRepoConfig.ExtensionsSection;
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29 import org.tmatesoft.hg.repo.HgRepository;
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30 import org.tmatesoft.hg.util.PathRewrite;
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31
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32 /**
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33 * Fields/members that shall not be visible
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34 *
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35 * @author Artem Tikhomirov
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36 * @author TMate Software Ltd.
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37 */
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38 public class Internals {
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39
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40 private int requiresFlags = 0;
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41 private List<Filter.Factory> filterFactories;
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42
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43
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44 public Internals() {
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45 }
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47 public void parseRequires(HgRepository hgRepo, File requiresFile) {
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48 try {
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49 new RequiresFile().parse(this, requiresFile);
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50 } catch (IOException ex) {
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51 // FIXME not quite sure error reading requires file shall be silently logged only.
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52 HgInternals.getContext(hgRepo).getLog().error(getClass(), ex, null);
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53 }
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54 }
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56 public/*for tests, otherwise pkg*/ void setStorageConfig(int version, int flags) {
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57 requiresFlags = flags;
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58 }
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60 // XXX perhaps, should keep both fields right here, not in the HgRepository
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61 public PathRewrite buildDataFilesHelper() {
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62 return new StoragePathHelper((requiresFlags & STORE) != 0, (requiresFlags & FNCACHE) != 0, (requiresFlags & DOTENCODE) != 0);
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63 }
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64
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65 public PathRewrite buildRepositoryFilesHelper() {
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66 if ((requiresFlags & STORE) != 0) {
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67 return new PathRewrite() {
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68 public CharSequence rewrite(CharSequence path) {
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69 return "store/" + path;
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70 }
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71 };
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72 } else {
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73 return new PathRewrite.Empty();
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74 }
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75 }
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77 public List<Filter.Factory> getFilters(HgRepository hgRepo) {
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78 if (filterFactories == null) {
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79 filterFactories = new ArrayList<Filter.Factory>();
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80 ExtensionsSection cfg = hgRepo.getConfiguration().getExtensions();
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81 if (cfg.isEnabled("eol")) {
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82 NewlineFilter.Factory ff = new NewlineFilter.Factory();
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83 ff.initialize(hgRepo);
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84 filterFactories.add(ff);
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85 }
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86 if (cfg.isEnabled("keyword")) {
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87 KeywordFilter.Factory ff = new KeywordFilter.Factory();
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88 ff.initialize(hgRepo);
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89 filterFactories.add(ff);
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90 }
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91 }
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92 return filterFactories;
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93 }
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95 public void initEmptyRepository(File hgDir) throws IOException {
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96 hgDir.mkdir();
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97 FileOutputStream requiresFile = new FileOutputStream(new File(hgDir, "requires"));
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98 StringBuilder sb = new StringBuilder(40);
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99 sb.append("revlogv1\n");
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100 if ((requiresFlags & STORE) != 0) {
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101 sb.append("store\n");
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102 }
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103 if ((requiresFlags & FNCACHE) != 0) {
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104 sb.append("fncache\n");
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105 }
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106 if ((requiresFlags & DOTENCODE) != 0) {
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107 sb.append("dotencode\n");
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108 }
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109 requiresFile.write(sb.toString().getBytes());
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110 requiresFile.close();
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111 new File(hgDir, "store").mkdir(); // with that, hg verify says ok.
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112 }
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113
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114 public static boolean runningOnWindows() {
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115 return System.getProperty("os.name").indexOf("Windows") != -1;
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116 }
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117
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118 public ConfigFile readConfiguration(HgRepository hgRepo, File repoRoot) throws IOException {
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119 ConfigFile configFile = new ConfigFile();
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120 // FIXME use Unix/Win location according to runningOnWindows
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121 configFile.addLocation(new File(System.getProperty("user.home"), ".hgrc"));
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parents: 295
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122 // last one, overrides anything else
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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123 // <repo>/.hg/hgrc
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124 configFile.addLocation(new File(repoRoot, "hgrc"));
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125 return configFile;
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126 }
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6f1b88693d48 Complete refactoring to org.tmatesoft
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127 }