Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/HgSubrepoLocation.java @ 709:497e697636fc

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Report merged lines as changed block if possible, not as a sequence of added/deleted blocks. To facilitate access to merge parent lines AddBlock got mergeLineAt() method that reports index of the line in the second parent (if any), while insertedAt() has been changed to report index in the first parent always
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 21 Aug 2013 16:23:27 +0200
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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 java.io.File;
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20
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21 import org.tmatesoft.hg.core.HgRepositoryNotFoundException;
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22 import org.tmatesoft.hg.core.Nodeid;
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23 import org.tmatesoft.hg.internal.Internals;
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24 import org.tmatesoft.hg.util.Path;
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25
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26 /**
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27 * Descriptor for subrepository location
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28 *
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29 * @see http://mercurial.selenic.com/wiki/Subrepository
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30 * @author Artem Tikhomirov
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31 * @author TMate Software Ltd.
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32 */
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33 public class HgSubrepoLocation {
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34
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35 private final HgRepository owner;
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36 private final Kind kind;
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37 private final Path location;
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38 private final String source;
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39 private final Nodeid revInfo;
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40
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41 public enum Kind { Hg, SVN, Git, }
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42
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43 /**
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44 *
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45 * @param parentRepo
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46 * @param repoLocation path, shall be valid directory (i.e. even if .hgsub doesn't specify trailing slash, this one shall)
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47 * @param actualLocation
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48 * @param type
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49 * @param revision may be <code>null</code>
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50 */
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51 /*package-local*/ HgSubrepoLocation(HgRepository parentRepo, Path repoLocation, String actualLocation, Kind type, Nodeid revision) {
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52 owner = parentRepo;
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53 location = repoLocation;
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54 source = actualLocation;
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55 kind = type;
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56 revInfo = revision;
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57 }
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58
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59 /**
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60 * Sub-repository's location within owning repository, always directory, <code>path/to/nested</code>.
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61 * <p>
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62 * May differ from left-hand, key value from <code>.hgsub</code> if the latter doesn't include trailing slash, which is required
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63 * for {@link Path} objects
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64 *
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65 * @return path to nested repository relative to owner's location
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66 */
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67 public Path getLocation() {
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68 return location;
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69 }
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70
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71 /**
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72 * Right-hand value from <code>.hgsub</code>, with <code>[kind]</code> stripped, if any.
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73 * @return sub-repository's source
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74 */
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75 public String getSource() {
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76 return source;
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77 }
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78
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79 /**
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80 * Sub-repository kind, either Mercurial, Subversion or Git
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81 * @return one of predefined constants
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82 */
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83 public Kind getType() {
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84 return kind;
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85 }
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86
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87 /**
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88 * For a nested repository that has been committed at least once, returns
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89 * its revision as known from <code>.hgsubstate</code>
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90 *
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91 * <p>Note, this revision belongs to the nested repository history, not that of owning repository.
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92 *
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93 * @return revision of the nested repository, or <code>null</code> if not yet committed
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94 */
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95 public Nodeid getRevision() {
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96 return revInfo;
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97 }
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99 /**
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100 * Answers whether this sub repository has ever been part of a commit of the owner repository
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101 *
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102 * @return <code>true</code> if owning repository records {@link #getRevision() revision} of this sub-repository
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103 */
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104 public boolean isCommitted() {
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105 return revInfo != null;
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106 }
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107
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108 /**
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109 * Answers whether there are local changes in the sub-repository,
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110 * @return <code>true</code> if it's dirty
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111 */
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112 public boolean hasChanges() {
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113 throw Internals.notImplemented();
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114 }
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116 /**
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117 * Access repository that owns nested one described by this object
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118 */
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119 public HgRepository getOwner() {
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120 return owner;
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121 }
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122
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123 /**
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124 * Access nested repository as a full-fledged Mercurial repository
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125 *
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126 * @return object to access sub-repository
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127 * @throws HgRepositoryNotFoundException if failed to find repository
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128 * @throws HgRuntimeException subclass thereof to indicate issues with the library. <em>Runtime exception</em>
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129 */
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130 public HgRepository getRepo() throws HgRepositoryNotFoundException {
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131 if (kind != Kind.Hg) {
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132 throw new HgInvalidStateException(String.format("Unsupported subrepository %s", kind));
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133 }
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134 return new HgLookup().detect(new File(owner.getWorkingDir(), source));
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135 }
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136 }