Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgChangeset.java @ 135:3959bffb14e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
explicit op name instead math op to get last rev number
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 16 Feb 2011 22:00:39 +0100
parents 4a948ec83980
children 37a34044e6bd
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
102
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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.core;
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18
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19 import java.util.ArrayList;
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20 import java.util.Collections;
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21 import java.util.List;
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22
131
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23 import org.tmatesoft.hg.core.HgLogCommand.FileRevision;
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24 import org.tmatesoft.hg.repo.HgChangelog.Changeset;
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25 import org.tmatesoft.hg.repo.HgRepository;
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26 import org.tmatesoft.hg.repo.HgStatusCollector;
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27 import org.tmatesoft.hg.util.Path;
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28 import org.tmatesoft.hg.util.PathPool;
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29
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30
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31 /**
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32 * Record in the Mercurial changelog, describing single commit.
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33 *
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34 * Not thread-safe, don't try to read from different threads
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35 *
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36 * @author Artem Tikhomirov
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37 * @author TMate Software Ltd.
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38 */
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39 public class HgChangeset implements Cloneable {
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40 private final HgStatusCollector statusHelper;
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41 private final PathPool pathHelper;
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42
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43 //
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44 private Changeset changeset;
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45 private Nodeid nodeid;
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46
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47 //
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48 private List<FileRevision> modifiedFiles, addedFiles;
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49 private List<Path> deletedFiles;
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50 private int revNumber;
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51
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52 // XXX consider CommandContext with StatusCollector, PathPool etc. Commands optionally get CC through a cons or create new
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53 // and pass it around
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54 /*package-local*/HgChangeset(HgStatusCollector statusCollector, PathPool pathPool) {
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55 statusHelper = statusCollector;
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56 pathHelper = pathPool;
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57 }
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58
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59 /*package-local*/
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60 void init(int localRevNumber, Nodeid nid, Changeset rawChangeset) {
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61 revNumber = localRevNumber;
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62 nodeid = nid;
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63 changeset = rawChangeset;
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64 modifiedFiles = addedFiles = null;
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65 deletedFiles = null;
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66 }
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67 public int getRevision() {
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68 return revNumber;
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69 }
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70 public Nodeid getNodeid() {
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71 return nodeid;
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72 }
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73 public String getUser() {
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74 return changeset.user();
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75 }
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76 public String getComment() {
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77 return changeset.comment();
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78 }
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79 public String getBranch() {
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80 return changeset.branch();
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81 }
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82 public String getDate() {
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83 return changeset.dateString();
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84 }
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85 public Nodeid getManifestRevision() {
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86 return changeset.manifest();
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87 }
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88
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89 public List<Path> getAffectedFiles() {
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90 // reports files as recorded in changelog. Note, merge revisions may have no
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91 // files listed, and thus this method would return empty list, while
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92 // #getModifiedFiles() would return list with merged file(s) (because it uses status to get 'em, not
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93 // what #files() gives).
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94 ArrayList<Path> rv = new ArrayList<Path>(changeset.files().size());
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95 for (String name : changeset.files()) {
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96 rv.add(pathHelper.path(name));
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97 }
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98 return rv;
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99 }
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100
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101 public List<FileRevision> getModifiedFiles() {
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102 if (modifiedFiles == null) {
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103 initFileChanges();
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104 }
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105 return modifiedFiles;
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106 }
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107
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108 public List<FileRevision> getAddedFiles() {
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109 if (addedFiles == null) {
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110 initFileChanges();
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111 }
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112 return addedFiles;
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113 }
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114
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115 public List<Path> getRemovedFiles() {
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116 if (deletedFiles == null) {
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117 initFileChanges();
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118 }
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119 return deletedFiles;
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120 }
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121
125
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122 public boolean isMerge() {
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123 return !Nodeid.NULL.equals(getSecondParentRevision());
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124 }
124
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125
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126 public Nodeid getFirstParentRevision() {
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127 // XXX may read once for both p1 and p2
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128 // or use ParentWalker to minimize reads even more.
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129 byte[] p1 = new byte[20];
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130 statusHelper.getRepo().getChangelog().parents(revNumber, new int[2], p1, null);
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131 return Nodeid.fromBinary(p1, 0);
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132 }
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133
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134 public Nodeid getSecondParentRevision() {
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135 byte[] p2 = new byte[20];
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136 statusHelper.getRepo().getChangelog().parents(revNumber, new int[2], null, p2);
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137 return Nodeid.fromBinary(p2, 0);
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138 }
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139
64
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140 @Override
129
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141 public HgChangeset clone() {
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142 try {
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143 HgChangeset copy = (HgChangeset) super.clone();
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144 copy.changeset = changeset.clone();
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145 return copy;
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146 } catch (CloneNotSupportedException ex) {
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147 throw new InternalError(ex.toString());
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148 }
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149 }
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150
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151 private /*synchronized*/ void initFileChanges() {
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152 ArrayList<Path> deleted = new ArrayList<Path>();
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153 ArrayList<FileRevision> modified = new ArrayList<FileRevision>();
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154 ArrayList<FileRevision> added = new ArrayList<FileRevision>();
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155 HgStatusCollector.Record r = new HgStatusCollector.Record();
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156 statusHelper.change(revNumber, r);
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157 final HgRepository repo = statusHelper.getRepo();
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158 for (Path s : r.getModified()) {
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159 Nodeid nid = r.nodeidAfterChange(s);
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160 if (nid == null) {
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161 throw new IllegalArgumentException();
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162 }
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163 modified.add(new FileRevision(repo, nid, s));
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164 }
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165 for (Path s : r.getAdded()) {
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166 Nodeid nid = r.nodeidAfterChange(s);
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167 if (nid == null) {
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168 throw new IllegalArgumentException();
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169 }
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170 added.add(new FileRevision(repo, nid, s));
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171 }
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172 for (Path s : r.getRemoved()) {
124
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173 // with Path from getRemoved, may just copy
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174 deleted.add(s);
64
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175 }
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176 modified.trimToSize();
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177 added.trimToSize();
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178 deleted.trimToSize();
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179 modifiedFiles = Collections.unmodifiableList(modified);
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180 addedFiles = Collections.unmodifiableList(added);
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181 deletedFiles = Collections.unmodifiableList(deleted);
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182 }
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183 }