Mercurial > jhg

annotate src/org/tmatesoft/hg/repo/HgInternals.java @ 449:5787e912f60e smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Speed up changeset phase detection when no parent cache is avalable
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 07 Jun 2012 16:01:09 +0200
parents 63c5a9d7ca3f
children bb278ccf9866
rev   line source
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1 /*
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2 * Copyright (c) 2011-2012 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import static org.tmatesoft.hg.repo.HgRepository.*;
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20
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21 import java.io.BufferedReader;
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22 import java.io.File;
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23 import java.io.IOException;
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24 import java.io.Reader;
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25 import java.net.InetAddress;
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26 import java.net.UnknownHostException;
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28 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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29 import org.tmatesoft.hg.core.HgInvalidRevisionException;
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30 import org.tmatesoft.hg.core.SessionContext;
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31 import org.tmatesoft.hg.internal.Experimental;
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32 import org.tmatesoft.hg.internal.Internals;
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33 import org.tmatesoft.hg.internal.RelativePathRewrite;
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34 import org.tmatesoft.hg.internal.WinToNixPathRewrite;
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35 import org.tmatesoft.hg.util.FileIterator;
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36 import org.tmatesoft.hg.util.FileWalker;
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37 import org.tmatesoft.hg.util.Path;
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38 import org.tmatesoft.hg.util.PathPool;
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39 import org.tmatesoft.hg.util.PathRewrite;
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42 /**
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43 * DO NOT USE THIS CLASS, INTENDED FOR TESTING PURPOSES.
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44 *
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45 * This class gives access to repository internals, and holds methods that I'm not confident have to be widely accessible
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46 * Debug helper, to access otherwise restricted (package-local) methods
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47 *
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48 * @author Artem Tikhomirov
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49 * @author TMate Software Ltd.
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50 */
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51 @Experimental(reason="Perhaps, shall split methods with debug purpose from methods that are experimental API")
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52 public class HgInternals {
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54 private final HgRepository repo;
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56 public HgInternals(HgRepository hgRepo) {
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57 repo = hgRepo;
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58 }
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60 public HgDirstate getDirstate() throws HgInvalidControlFileException {
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61 return repo.loadDirstate(new PathPool(new PathRewrite.Empty()));
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62 }
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63
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64 // tests
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65 public HgDirstate createDirstate(boolean caseSensitiveFileSystem) throws HgInvalidControlFileException {
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66 PathRewrite canonicalPath = null;
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67 if (!caseSensitiveFileSystem) {
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68 canonicalPath = new PathRewrite() {
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69
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70 public CharSequence rewrite(CharSequence path) {
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71 return path.toString().toLowerCase();
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72 }
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73 };
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74 }
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75 HgDirstate ds = new HgDirstate(repo, new File(repo.getRepositoryRoot(), "dirstate"), new PathPool(new PathRewrite.Empty()), canonicalPath);
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76 ds.read(repo.getImplHelper().buildFileNameEncodingHelper());
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77 return ds;
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78 }
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80 public Path[] checkKnown(HgDirstate dirstate, Path[] toCheck) {
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81 Path[] rv = new Path[toCheck.length];
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82 for (int i = 0; i < toCheck.length; i++) {
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83 rv[i] = dirstate.known(toCheck[i]);
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84 }
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85 return rv;
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86 }
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88 public static File getRepositoryDir(HgRepository hgRepo) {
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89 return hgRepo.getRepositoryRoot();
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90 }
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92 /**
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93 * @param source where to read definitions from
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94 * @param globPathRewrite <code>null</code> to use default, or pass an instance to override defaults
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95 * @return
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96 * @throws IOException
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97 */
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98 public static HgIgnore newHgIgnore(Reader source, PathRewrite globPathRewrite) throws IOException {
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99 if (globPathRewrite == null) {
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100 // shall match that of HgRepository#getIgnore() (Internals#buildNormalizePathRewrite())
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101 if (Internals.runningOnWindows()) {
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102 globPathRewrite = new WinToNixPathRewrite();
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103 } else {
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104 globPathRewrite = new PathRewrite.Empty();
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105 }
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106 }
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107 HgIgnore hgIgnore = new HgIgnore(globPathRewrite);
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108 BufferedReader br = source instanceof BufferedReader ? (BufferedReader) source : new BufferedReader(source);
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109 hgIgnore.read(br);
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110 br.close();
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111 return hgIgnore;
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112 }
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114 // in fact, need a setter for this anyway, shall move to internal.Internals perhaps?
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115 public String getNextCommitUsername() {
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116 String hgUser = System.getenv("HGUSER");
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117 if (hgUser != null && hgUser.trim().length() > 0) {
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118 return hgUser.trim();
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119 }
331
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120 String configValue = repo.getConfiguration().getStringValue("ui", "username", null);
128
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121 if (configValue != null) {
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122 return configValue;
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123 }
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124 String email = System.getenv("EMAIL");
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125 if (email != null && email.trim().length() > 0) {
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126 return email;
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127 }
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128 String username = System.getProperty("user.name");
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129 try {
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130 String hostname = InetAddress.getLocalHost().getHostName();
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131 return username + '@' + hostname;
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132 } catch (UnknownHostException ex) {
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133 return username;
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134 }
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135 }
229
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136
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137 @Experimental(reason="Don't want to expose io.File from HgRepository; need to create FileIterator for working dir. Need a place to keep that code")
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138 /*package-local*/ FileIterator createWorkingDirWalker(Path.Matcher workindDirScope) {
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139 File repoRoot = repo.getWorkingDir();
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140 Path.Source pathSrc = new Path.SimpleSource(new PathRewrite.Composite(new RelativePathRewrite(repoRoot), repo.getToRepoPathHelper()));
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141 // Impl note: simple source is enough as files in the working dir are all unique
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142 // even if they might get reused (i.e. after FileIterator#reset() and walking once again),
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143 // path caching is better to be done in the code which knows that path are being reused
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144 return new FileWalker(repoRoot, pathSrc, workindDirScope);
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145 }
295
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146
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147 // expose othewise package-local information primarily to use in our own o.t.hg.core package
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148 public static SessionContext getContext(HgRepository repo) {
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149 return repo.getContext();
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150 }
229
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151
148
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152
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153 // Convenient check of revision index for validity (not all negative values are wrong as long as we use negative constants)
367
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154 public static boolean wrongRevisionIndex(int rev) {
148
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155 return rev < 0 && rev != TIP && rev != WORKING_COPY && rev != BAD_REVISION;
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156 }
300
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157
347
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158 // throws HgInvalidRevisionException or IllegalArgumentException if [start..end] range is not a subrange of [0..lastRevision]
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159 public static void checkRevlogRange(int start, int end, int lastRevision) throws HgInvalidRevisionException {
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160 if (start < 0 || start > lastRevision) {
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161 final String m = String.format("Bad left range boundary %d in [0..%d]", start, lastRevision);
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162 throw new HgInvalidRevisionException(m, null, start).setRevisionIndex(start, 0, lastRevision);
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163 }
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164 if (end < 0 || end > lastRevision) {
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165 final String m = String.format("Bad right range boundary %d in [0..%d]", end, lastRevision);
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166 throw new HgInvalidRevisionException(m, null, end).setRevisionIndex(end, 0, lastRevision);
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167 }
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168 if (end < start) {
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169 throw new IllegalArgumentException(String.format("Bad range [%d..%d]", start, end));
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170 }
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171 }
59
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172 }