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annotate src/org/tmatesoft/hg/internal/Internals.java @ 355:f2c11fe7f3e9

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Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 06 Dec 2011 12:57:21 +0100
parents 5abba41751e6
children 9fb990c8a724
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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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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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46
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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 if (runningOnWindows()) {
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121 // FIXME read install-dir
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122 //
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123 // XXX perhaps, makes sense to compare getenv(USERPROFILE) and getenv(HOME) and use
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124 // them if set (and use both if their values do not match). Only if both not set, rely to user.home?
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125 configFile.addLocation(new File(System.getProperty("user.home"), "Mercurial.ini"));
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126 } else {
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127 // FIXME read from install-root
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128 //
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129 File d = new File("/etc/mercurial/hgrc.d/");
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130 if (d.isDirectory()) {
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131 for (File f : d.listFiles()) {
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132 // XXX in fact, need to sort in alphabetical order
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133 if (f.getName().endsWith(".rc")) {
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134 configFile.addLocation(f);
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135 }
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136 }
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137 }
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138 configFile.addLocation(new File("/etc/mercurial/hgrc"));
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139 }
331
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140 configFile.addLocation(new File(System.getProperty("user.home"), ".hgrc"));
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141 // last one, overrides anything else
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142 // <repo>/.hg/hgrc
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143 configFile.addLocation(new File(repoRoot, "hgrc"));
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144 return configFile;
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145 }
74
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146 }