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annotate src/org/tmatesoft/hg/core/Cset.java @ 125:26ad21b250e4

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author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Feb 2011 06:40:36 +0100
parents cea84c5995e6
children
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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
a3a2e5deb320 Updated contact address to support@hg4j.com
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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
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23 import org.tmatesoft.hg.core.LogCommand.FileRevision;
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24 import org.tmatesoft.hg.repo.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.PathPool;
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28
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29
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30 /**
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31 * TODO rename to Changeset along with original Changeset moved to .repo and renamed to HgChangeset?
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32 * Not thread-safe, don't try to read from different threads
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33 *
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34 * @author Artem Tikhomirov
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35 * @author TMate Software Ltd.
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36 */
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37 public class Cset implements Cloneable {
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38 private final HgStatusCollector statusHelper;
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39 private final PathPool pathHelper;
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40
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41 //
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42 private Changeset changeset;
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43 private Nodeid nodeid;
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44
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45 //
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46 private List<FileRevision> modifiedFiles, addedFiles;
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47 private List<Path> deletedFiles;
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48 private int revNumber;
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49
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50 // XXX consider CommandContext with StatusCollector, PathPool etc. Commands optionally get CC through a cons or create new
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51 // and pass it around
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52 /*package-local*/Cset(HgStatusCollector statusCollector, PathPool pathPool) {
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53 statusHelper = statusCollector;
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54 pathHelper = pathPool;
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55 }
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56
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57 /*package-local*/
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58 void init(int localRevNumber, Nodeid nid, Changeset rawChangeset) {
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59 revNumber = localRevNumber;
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60 nodeid = nid;
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61 changeset = rawChangeset;
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62 modifiedFiles = addedFiles = null;
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63 deletedFiles = null;
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64 }
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65 public int getRevision() {
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66 return revNumber;
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67 }
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68 public Nodeid getNodeid() {
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69 return nodeid;
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70 }
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71 public String getUser() {
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72 return changeset.user();
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73 }
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74 public String getComment() {
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75 return changeset.comment();
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76 }
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77 public String getBranch() {
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78 return changeset.branch();
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79 }
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80 public String getDate() {
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81 return changeset.dateString();
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82 }
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83 public Nodeid getManifestRevision() {
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84 return changeset.manifest();
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85 }
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87 public List<Path> getAffectedFiles() {
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88 // reports files as recorded in changelog. Note, merge revisions may have no
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89 // files listed, and thus this method would return empty list, while
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90 // #getModifiedFiles() would return list with merged file(s) (because it uses status to get 'em, not
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91 // what #files() gives).
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92 ArrayList<Path> rv = new ArrayList<Path>(changeset.files().size());
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93 for (String name : changeset.files()) {
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94 rv.add(pathHelper.path(name));
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95 }
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96 return rv;
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97 }
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98
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99 public List<FileRevision> getModifiedFiles() {
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100 if (modifiedFiles == null) {
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101 initFileChanges();
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102 }
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103 return modifiedFiles;
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104 }
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105
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106 public List<FileRevision> getAddedFiles() {
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107 if (addedFiles == null) {
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108 initFileChanges();
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109 }
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110 return addedFiles;
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111 }
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112
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113 public List<Path> getRemovedFiles() {
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114 if (deletedFiles == null) {
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115 initFileChanges();
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116 }
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117 return deletedFiles;
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118 }
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119
125
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120 public boolean isMerge() {
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121 return !Nodeid.NULL.equals(getSecondParentRevision());
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122 }
124
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123
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124 public Nodeid getFirstParentRevision() {
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125 // XXX may read once for both p1 and p2
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126 // or use ParentWalker to minimize reads even more.
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127 byte[] p1 = new byte[20];
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128 statusHelper.getRepo().getChangelog().parents(revNumber, new int[2], p1, null);
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129 return Nodeid.fromBinary(p1, 0);
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130 }
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131
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132 public Nodeid getSecondParentRevision() {
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133 byte[] p2 = new byte[20];
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134 statusHelper.getRepo().getChangelog().parents(revNumber, new int[2], null, p2);
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135 return Nodeid.fromBinary(p2, 0);
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136 }
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137
64
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138 @Override
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139 public Cset clone() {
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140 try {
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141 Cset copy = (Cset) super.clone();
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142 copy.changeset = changeset.clone();
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143 return copy;
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144 } catch (CloneNotSupportedException ex) {
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145 throw new InternalError(ex.toString());
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146 }
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147 }
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148
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149 private /*synchronized*/ void initFileChanges() {
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150 ArrayList<Path> deleted = new ArrayList<Path>();
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151 ArrayList<FileRevision> modified = new ArrayList<FileRevision>();
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152 ArrayList<FileRevision> added = new ArrayList<FileRevision>();
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153 HgStatusCollector.Record r = new HgStatusCollector.Record();
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154 statusHelper.change(revNumber, r);
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155 final HgRepository repo = statusHelper.getRepo();
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156 for (Path s : r.getModified()) {
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157 Nodeid nid = r.nodeidAfterChange(s);
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158 if (nid == null) {
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159 throw new IllegalArgumentException();
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160 }
93
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161 modified.add(new FileRevision(repo, nid, s));
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162 }
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163 for (Path s : r.getAdded()) {
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164 Nodeid nid = r.nodeidAfterChange(s);
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165 if (nid == null) {
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166 throw new IllegalArgumentException();
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167 }
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168 added.add(new FileRevision(repo, nid, s));
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169 }
93
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170 for (Path s : r.getRemoved()) {
124
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171 // with Path from getRemoved, may just copy
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172 deleted.add(s);
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173 }
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174 modified.trimToSize();
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175 added.trimToSize();
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176 deleted.trimToSize();
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177 modifiedFiles = Collections.unmodifiableList(modified);
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178 addedFiles = Collections.unmodifiableList(added);
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179 deletedFiles = Collections.unmodifiableList(deleted);
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180 }
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181 }