Mercurial > hg4j
annotate src/org/tmatesoft/hg/repo/HgInternals.java @ 277:74e7493a042a
Favor delegation over generalization
| author | Artem Tikhomirov <tikhomirov.artem@gmail.com> | 
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| date | Mon, 29 Aug 2011 23:14:59 +0200 | 
| parents | 7af843ecc378 | 
| children | 7232b94f2ae3 | 
| 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 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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27 | 
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28 import org.tmatesoft.hg.internal.ConfigFile; | 
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29 import org.tmatesoft.hg.internal.Experimental; | 
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30 import org.tmatesoft.hg.internal.RelativePathRewrite; | 
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31 import org.tmatesoft.hg.util.FileIterator; | 
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32 import org.tmatesoft.hg.util.FileWalker; | 
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33 import org.tmatesoft.hg.util.Path; | 
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34 import org.tmatesoft.hg.util.PathRewrite; | 
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35 | 
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36 | 
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37 /** | 
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38 * DO NOT USE THIS CLASS, INTENDED FOR TESTING PURPOSES. | 
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39 * | 
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40 * This class gives access to repository internals, and holds methods that I'm not confident have to be widely accessible | 
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41 * Debug helper, to access otherwise restricted (package-local) methods | 
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42 * | 
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43 * @author Artem Tikhomirov | 
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44 * @author TMate Software Ltd. | 
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45 */ | 
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46 @Experimental(reason="Perhaps, shall split methods with debug purpose from methods that are experimental API") | 
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47 public class HgInternals { | 
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48 | 
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49 private final HgRepository repo; | 
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50 | 
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51 public HgInternals(HgRepository hgRepo) { | 
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52 repo = hgRepo; | 
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53 } | 
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54 | 
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55 public void dumpDirstate() { | 
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56 repo.loadDirstate().dump(); | 
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57 } | 
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58 | 
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59 public boolean[] checkIgnored(String... toCheck) { | 
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60 HgIgnore ignore = repo.getIgnore(); | 
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61 boolean[] rv = new boolean[toCheck.length]; | 
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62 for (int i = 0; i < toCheck.length; i++) { | 
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63 rv[i] = ignore.isIgnored(Path.create(toCheck[i])); | 
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64 } | 
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65 return rv; | 
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66 } | 
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67 | 
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68 public File getRepositoryDir() { | 
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69 return repo.getRepositoryRoot(); | 
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70 } | 
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71 | 
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72 public ConfigFile getRepoConfig() { | 
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73 return repo.getConfigFile(); | 
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74 } | 
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75 | 
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76 public static HgIgnore newHgIgnore(Reader source) throws IOException { | 
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77 HgIgnore hgIgnore = new HgIgnore(); | 
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78 BufferedReader br = source instanceof BufferedReader ? (BufferedReader) source : new BufferedReader(source); | 
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79 hgIgnore.read(br); | 
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80 br.close(); | 
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81 return hgIgnore; | 
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82 } | 
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83 | 
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84 // in fact, need a setter for this anyway, shall move to internal.Internals perhaps? | 
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85 public String getNextCommitUsername() { | 
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86 String hgUser = System.getenv("HGUSER"); | 
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87 if (hgUser != null && hgUser.trim().length() > 0) { | 
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88 return hgUser.trim(); | 
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89 } | 
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90 String configValue = getRepoConfig().getString("ui", "username", null); | 
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91 if (configValue != null) { | 
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92 return configValue; | 
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93 } | 
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94 String email = System.getenv("EMAIL"); | 
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95 if (email != null && email.trim().length() > 0) { | 
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96 return email; | 
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97 } | 
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98 String username = System.getProperty("user.name"); | 
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99 try { | 
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100 String hostname = InetAddress.getLocalHost().getHostName(); | 
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101 return username + '@' + hostname; | 
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102 } catch (UnknownHostException ex) { | 
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103 return username; | 
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104 } | 
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105 } | 
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106 | 
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107 @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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108 /*package-local*/ FileIterator createWorkingDirWalker(Path.Matcher workindDirScope) { | 
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109 File repoRoot = repo.getWorkingDir(); | 
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110 Path.Source pathSrc = new Path.SimpleSource(new PathRewrite.Composite(new RelativePathRewrite(repoRoot), repo.getToRepoPathHelper())); | 
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111 // Impl note: simple source is enough as files in the working dir are all unique | 
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112 // even if they might get reused (i.e. after FileIterator#reset() and walking once again), | 
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113 // path caching is better to be done in the code which knows that path are being reused | 
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114 return new FileWalker(repoRoot, pathSrc, workindDirScope); | 
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115 } | 
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116 | 
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117 | 
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118 // Convenient check of local revision number for validity (not all negative values are wrong as long as we use negative constants) | 
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119 public static boolean wrongLocalRevision(int rev) { | 
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120 return rev < 0 && rev != TIP && rev != WORKING_COPY && rev != BAD_REVISION; | 
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121 } | 
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122 } | 
