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annotate src/org/tmatesoft/hg/repo/HgChangelog.java @ 628:6526d8adbc0f

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Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 22 May 2013 15:52:31 +0200
parents 46f29b73e51e
children a937e63b6e02
rev   line source
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e929cecae4e1 Refactor to move revlog content to base class
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1 /*
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2 * Copyright (c) 2010-2013 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.IOException;
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20 import java.io.UnsupportedEncodingException;
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21 import java.util.ArrayList;
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22 import java.util.Arrays;
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23 import java.util.Calendar;
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24 import java.util.Collections;
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25 import java.util.Date;
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26 import java.util.Formatter;
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27 import java.util.HashMap;
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28 import java.util.List;
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29 import java.util.Locale;
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30 import java.util.Map;
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31 import java.util.TimeZone;
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32
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33 import org.tmatesoft.hg.core.Nodeid;
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34 import org.tmatesoft.hg.internal.Callback;
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35 import org.tmatesoft.hg.internal.DataAccess;
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36 import org.tmatesoft.hg.internal.Lifecycle;
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37 import org.tmatesoft.hg.internal.LifecycleBridge;
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38 import org.tmatesoft.hg.internal.Pool;
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39 import org.tmatesoft.hg.internal.RevlogStream;
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40 import org.tmatesoft.hg.util.Adaptable;
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41 import org.tmatesoft.hg.util.CancelSupport;
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42 import org.tmatesoft.hg.util.ProgressSupport;
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43
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44 /**
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45 * Representation of the Mercurial changelog file (list of ChangeSets)
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46 *
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47 * @author Artem Tikhomirov
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48 * @author TMate Software Ltd.
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49 */
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50 public final class HgChangelog extends Revlog {
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51
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52 /* package-local */HgChangelog(HgRepository hgRepo, RevlogStream content) {
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53 super(hgRepo, content, true);
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54 }
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55
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56 /**
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57 * Iterate over whole changelog
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58 * @param inspector callback to process entries
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59 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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60 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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61 */
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62 public void all(final HgChangelog.Inspector inspector) throws HgRuntimeException {
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63 range(0, getLastRevision(), inspector);
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64 }
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66 /**
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67 * Iterate over changelog part
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68 * @param start first changelog entry to process
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69 * @param end last changelog entry to process
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70 * @param inspector callback to process entries
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71 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog. <em>Runtime exception</em>
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72 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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73 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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74 */
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75 public void range(int start, int end, final HgChangelog.Inspector inspector) throws HgRuntimeException {
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76 if (inspector == null) {
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77 throw new IllegalArgumentException();
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78 }
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79 content.iterate(start, end, true, new RawCsetParser(inspector));
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80 }
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81
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82 /**
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83 * @see #range(int, int, Inspector)
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84 * @return changeset entry objects, never <code>null</code>
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85 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog. <em>Runtime exception</em>
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86 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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87 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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88 */
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89 public List<RawChangeset> range(int start, int end) throws HgRuntimeException {
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90 final RawCsetCollector c = new RawCsetCollector(end - start + 1);
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91 range(start, end, c);
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92 return c.result;
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93 }
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95 /**
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96 * Access individual revisions. Note, regardless of supplied revision order, inspector gets
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97 * changesets strictly in the order they are in the changelog.
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98 * @param inspector callback to get changesets
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99 * @param revisions revisions to read, unrestricted ordering.
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100 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog <em>Runtime exception</em>
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101 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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102 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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103 */
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104 public void range(final HgChangelog.Inspector inspector, final int... revisions) throws HgRuntimeException {
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105 Arrays.sort(revisions);
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106 rangeInternal(inspector, revisions);
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107 }
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108
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109 /**
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110 * Friends-only version of {@link #range(Inspector, int...)}, when callers know array is sorted
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111 */
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112 /*package-local*/ void rangeInternal(HgChangelog.Inspector inspector, int[] sortedRevisions) throws HgRuntimeException {
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113 if (sortedRevisions == null || sortedRevisions.length == 0) {
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114 return;
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115 }
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116 if (inspector == null) {
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117 throw new IllegalArgumentException();
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118 }
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119 content.iterate(sortedRevisions, true, new RawCsetParser(inspector));
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120 }
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121
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122 /**
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123 * Get changeset entry object
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124 * @throws HgInvalidRevisionException if supplied nodeid doesn't identify any revision from this revlog. <em>Runtime exception</em>
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125 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em>
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126 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em>
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127 */
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128 public RawChangeset changeset(Nodeid nid) throws HgRuntimeException {
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129 int x = getRevisionIndex(nid);
236
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130 return range(x, x).get(0);
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131 }
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132
423
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133 @Callback
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134 public interface Inspector {
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135 /**
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136 * Access next changeset
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137 * TODO describe what revisionNumber is when Inspector is used with HgBundle (BAD_REVISION or bundle's local order?)
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138 *
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139 * @param revisionIndex index of revision being inspected, local to the inspected object
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140 * @param nodeid revision being inspected
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141 * @param cset changeset raw data
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142 */
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143 void next(int revisionIndex, Nodeid nodeid, RawChangeset cset) throws HgRuntimeException;
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144 }
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145
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146 /**
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147 * Entry in the Changelog
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148 */
154
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149 public static class RawChangeset implements Cloneable /* for those that would like to keep a copy */{
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150 // TODO immutable
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151 private/* final */Nodeid manifest;
153
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152 private String user;
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153 private String comment;
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154 private List<String> files; // unmodifiable collection (otherwise #files() and implicit #clone() shall be revised)
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155 private Date time;
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156 private int timezone;
161
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157 // http://mercurial.selenic.com/wiki/PruningDeadBranches - Closing changesets can be identified by close=1 in the changeset's extra field.
153
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158 private Map<String, String> extras;
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159
153
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160 /**
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161 * @see mercurial/changelog.py:read()
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162 *
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163 * <pre>
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164 * format used:
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165 * nodeid\n : manifest node in ascii
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166 * user\n : user, no \n or \r allowed
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167 * time tz extra\n : date (time is int or float, timezone is int)
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168 * : extra is metadatas, encoded and separated by '\0'
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169 * : older versions ignore it
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170 * files\n\n : files modified by the cset, no \n or \r allowed
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171 * (.*) : comment (free text, ideally utf-8)
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172 *
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173 * changelog v0 doesn't use extra
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174 * </pre>
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175 */
154
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176 private RawChangeset() {
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177 }
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178
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179 public Nodeid manifest() {
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180 return manifest;
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181 }
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182
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183 public String user() {
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184 return user;
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185 }
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186
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187 public String comment() {
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188 return comment;
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189 }
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190
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191 public List<String> files() {
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192 return files;
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193 }
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194
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195 public Date date() {
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196 return time;
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197 }
211
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198
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199 /**
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200 * @return time zone value, as is, positive for Western Hemisphere.
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201 */
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202 public int timezone() {
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203 return timezone;
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204 }
153
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205
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206 public String dateString() {
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207 // XXX keep once formatted? Perhaps, there's faster way to set up calendar/time zone?
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208 StringBuilder sb = new StringBuilder(30);
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209 Formatter f = new Formatter(sb, Locale.US);
211
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210 TimeZone tz = TimeZone.getTimeZone(TimeZone.getAvailableIDs(timezone * 1000)[0]);
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211 // apparently timezone field records number of seconds time differs from UTC,
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212 // i.e. value to substract from time to get UTC time. Calendar seems to add
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213 // timezone offset to UTC, instead, hence sign change.
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214 // tz.setRawOffset(timezone * -1000);
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215 Calendar c = Calendar.getInstance(tz, Locale.US);
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216 c.setTime(time);
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217 f.format("%ta %<tb %<td %<tH:%<tM:%<tS %<tY %<tz", c);
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218 return sb.toString();
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219 }
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220
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221 public Map<String, String> extras() {
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222 return extras;
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223 }
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224
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225 public String branch() {
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226 return extras.get("branch");
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227 }
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228
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229 @Override
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230 public String toString() {
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231 StringBuilder sb = new StringBuilder();
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232 sb.append("Changeset {");
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233 sb.append("User: ").append(user).append(", ");
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234 sb.append("Comment: ").append(comment).append(", ");
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235 sb.append("Manifest: ").append(manifest).append(", ");
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236 sb.append("Date: ").append(time).append(", ");
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237 sb.append("Files: ").append(files.size());
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238 for (String s : files) {
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239 sb.append(", ").append(s);
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240 }
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241 if (extras != null) {
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242 sb.append(", Extra: ").append(extras);
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243 }
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244 sb.append("}");
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245 return sb.toString();
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246 }
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247
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248 @Override
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249 public RawChangeset clone() {
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250 try {
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251 return (RawChangeset) super.clone();
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252 } catch (CloneNotSupportedException ex) {
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253 throw new InternalError(ex.toString());
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254 }
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255 }
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256
427
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diff changeset
257 /*package*/ static RawChangeset parse(DataAccess da) throws IOException, HgInvalidDataFormatException {
365
3572fcb06473 Don't expose methods with DataAccess in public API
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diff changeset
258 byte[] data = da.byteArray();
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259 RawChangeset rv = new RawChangeset();
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260 rv.init(data, 0, data.length, null);
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261 return rv;
153
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262 }
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263
196
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264 // @param usersPool - it's likely user names get repeated again and again throughout repository. can be null
427
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265 /* package-local */void init(byte[] data, int offset, int length, Pool<String> usersPool) throws HgInvalidDataFormatException {
153
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266 final int bufferEndIndex = offset + length;
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267 final byte lineBreak = (byte) '\n';
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268 int breakIndex1 = indexOf(data, lineBreak, offset, bufferEndIndex);
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269 if (breakIndex1 == -1) {
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270 throw new HgInvalidDataFormatException("Bad Changeset data");
153
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271 }
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272 Nodeid _nodeid = Nodeid.fromAscii(data, 0, breakIndex1);
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273 int breakIndex2 = indexOf(data, lineBreak, breakIndex1 + 1, bufferEndIndex);
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274 if (breakIndex2 == -1) {
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275 throw new HgInvalidDataFormatException("Bad Changeset data");
153
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276 }
589
c18095eedde0 Username in changeset uses UTF-8, not system encoding
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277 String _user;
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diff changeset
278 try {
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279 // TODO use encoding helper? Although where encoding is fixed (like here), seems to be just too much
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diff changeset
280 _user = new String(data, breakIndex1 + 1, breakIndex2 - breakIndex1 - 1, "UTF-8");
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diff changeset
281 if (usersPool != null) {
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diff changeset
282 _user = usersPool.unify(_user);
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283 }
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284 } catch (UnsupportedEncodingException ex) {
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285 _user = "";
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286 // Could hardly happen
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287 throw new HgInvalidDataFormatException("Bad Changeset data", ex);
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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288 }
589
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289
153
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290 int breakIndex3 = indexOf(data, lineBreak, breakIndex2 + 1, bufferEndIndex);
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291 if (breakIndex3 == -1) {
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292 throw new HgInvalidDataFormatException("Bad Changeset data");
153
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293 }
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294 String _timeString = new String(data, breakIndex2 + 1, breakIndex3 - breakIndex2 - 1);
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295 int space1 = _timeString.indexOf(' ');
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diff changeset
296 if (space1 == -1) {
427
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297 throw new HgInvalidDataFormatException(String.format("Bad Changeset data: %s in [%d..%d]", "time string", breakIndex2+1, breakIndex3));
153
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298 }
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diff changeset
299 int space2 = _timeString.indexOf(' ', space1 + 1);
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diff changeset
300 if (space2 == -1) {
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diff changeset
301 space2 = _timeString.length();
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diff changeset
302 }
363
d9dfa9fe9cec Decode escape sequences in changeset extras field
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diff changeset
303 long unixTime = Long.parseLong(_timeString.substring(0, space1));
153
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diff changeset
304 int _timezone = Integer.parseInt(_timeString.substring(space1 + 1, space2));
363
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diff changeset
305 // unixTime is local time, and timezone records difference of the local time to UTC.
153
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diff changeset
306 Date _time = new Date(unixTime * 1000);
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diff changeset
307 String _extras = space2 < _timeString.length() ? _timeString.substring(space2 + 1) : null;
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diff changeset
308 Map<String, String> _extrasMap;
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 242
diff changeset
309 final String extras_branch_key = "branch";
386
73e875154afb Do not fail with empty extras string in changeset
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
310 if (_extras == null || _extras.trim().length() == 0) {
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
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diff changeset
311 _extrasMap = Collections.singletonMap(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME);
153
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diff changeset
312 } else {
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diff changeset
313 _extrasMap = new HashMap<String, String>();
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diff changeset
314 for (String pair : _extras.split("\00")) {
363
d9dfa9fe9cec Decode escape sequences in changeset extras field
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diff changeset
315 pair = decode(pair);
153
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diff changeset
316 int eq = pair.indexOf(':');
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diff changeset
317 _extrasMap.put(pair.substring(0, eq), pair.substring(eq + 1));
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diff changeset
318 }
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 242
diff changeset
319 if (!_extrasMap.containsKey(extras_branch_key)) {
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
320 _extrasMap.put(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME);
153
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diff changeset
321 }
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diff changeset
322 _extrasMap = Collections.unmodifiableMap(_extrasMap);
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323 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
324
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diff changeset
325 //
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diff changeset
326 int lastStart = breakIndex3 + 1;
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diff changeset
327 int breakIndex4 = indexOf(data, lineBreak, lastStart, bufferEndIndex);
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diff changeset
328 ArrayList<String> _files = null;
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diff changeset
329 if (breakIndex4 > lastStart) {
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diff changeset
330 // if breakIndex4 == lastStart, we already found \n\n and hence there are no files (e.g. merge revision)
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diff changeset
331 _files = new ArrayList<String>(5);
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diff changeset
332 while (breakIndex4 != -1 && breakIndex4 + 1 < bufferEndIndex) {
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diff changeset
333 _files.add(new String(data, lastStart, breakIndex4 - lastStart));
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diff changeset
334 lastStart = breakIndex4 + 1;
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diff changeset
335 if (data[breakIndex4 + 1] == lineBreak) {
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diff changeset
336 // found \n\n
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diff changeset
337 break;
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diff changeset
338 } else {
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diff changeset
339 breakIndex4 = indexOf(data, lineBreak, lastStart, bufferEndIndex);
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
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parents: 102
diff changeset
340 }
153
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diff changeset
341 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
342 if (breakIndex4 == -1 || breakIndex4 >= bufferEndIndex) {
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 426
diff changeset
343 throw new HgInvalidDataFormatException("Bad Changeset data");
153
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diff changeset
344 }
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diff changeset
345 } else {
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diff changeset
346 breakIndex4--;
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diff changeset
347 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
348 String _comment;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
349 try {
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diff changeset
350 _comment = new String(data, breakIndex4 + 2, bufferEndIndex - breakIndex4 - 2, "UTF-8");
418
528b6780a8bd A bit of FIXME cleanup (mostly degraded to TODO post 1.0), comments and javadoc
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 386
diff changeset
351 // TODO post-1.0 respect ui.fallbackencoding and try to decode if set; use EncodingHelper
153
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diff changeset
352 } catch (UnsupportedEncodingException ex) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
353 _comment = "";
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 365
diff changeset
354 // Could hardly happen
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 426
diff changeset
355 throw new HgInvalidDataFormatException("Bad Changeset data", ex);
153
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diff changeset
356 }
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diff changeset
357 // change this instance at once, don't leave it partially changes in case of error
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diff changeset
358 this.manifest = _nodeid;
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diff changeset
359 this.user = _user;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
360 this.time = _time;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
361 this.timezone = _timezone;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
362 this.files = _files == null ? Collections.<String> emptyList() : Collections.unmodifiableList(_files);
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diff changeset
363 this.comment = _comment;
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diff changeset
364 this.extras = _extrasMap;
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diff changeset
365 }
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
366
153
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diff changeset
367 private static int indexOf(byte[] src, byte what, int startOffset, int endIndex) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
368 for (int i = startOffset; i < endIndex; i++) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
369 if (src[i] == what) {
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parents: 146
diff changeset
370 return i;
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parents: 146
diff changeset
371 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
372 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
373 return -1;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
374 }
363
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
375
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
376 private static String decode(String s) {
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
377 if (s != null && s.indexOf('\\') != -1) {
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
378 // TestAuxUtilities#testChangelogExtrasDecode
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
379 return s.replace("\\\\", "\\").replace("\\n", "\n").replace("\\r", "\r").replace("\\0", "\00");
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
380 }
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
381 return s;
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
382 }
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
383 }
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
384
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
385 private static class RawCsetCollector implements Inspector {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
386 final ArrayList<RawChangeset> result;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
387
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388 public RawCsetCollector(int count) {
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389 result = new ArrayList<RawChangeset>(count > 0 ? count : 5);
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390 }
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391
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392 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
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393 result.add(cset.clone());
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394 }
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395 }
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396
520
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397 private static class RawCsetParser implements RevlogStream.Inspector, Adaptable {
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398
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399 private final Inspector inspector;
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400 private final Pool<String> usersPool;
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401 private final RawChangeset cset = new RawChangeset();
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402 // non-null when inspector uses high-level lifecycle entities (progress and/or cancel supports)
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403 private final LifecycleBridge lifecycleStub;
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404 // non-null when inspector relies on low-level lifecycle and is responsible
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405 // to proceed any possible high-level entities himself.
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406 private final Lifecycle inspectorLifecycle;
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407
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408 public RawCsetParser(HgChangelog.Inspector delegate) {
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409 assert delegate != null;
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410 inspector = delegate;
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411 usersPool = new Pool<String>();
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412 inspectorLifecycle = Adaptable.Factory.getAdapter(delegate, Lifecycle.class, null);
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413 if (inspectorLifecycle == null) {
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414 ProgressSupport ph = Adaptable.Factory.getAdapter(delegate, ProgressSupport.class, null);
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415 CancelSupport cs = Adaptable.Factory.getAdapter(delegate, CancelSupport.class, null);
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416 if (cs != null || ph != null) {
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417 lifecycleStub = new LifecycleBridge(ph, cs);
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418 } else {
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419 lifecycleStub = null;
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420 }
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421 } else {
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422 lifecycleStub = null;
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423 }
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424 }
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425
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426 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) throws HgRuntimeException {
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427 try {
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428 byte[] data = da.byteArray();
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429 cset.init(data, 0, data.length, usersPool);
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430 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
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431 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
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432 if (lifecycleStub != null) {
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433 lifecycleStub.nextStep();
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434 }
427
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435 } catch (HgInvalidDataFormatException ex) {
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436 throw ex.setRevisionIndex(revisionNumber);
366
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437 } catch (IOException ex) {
423
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438 // XXX need better exception, perhaps smth like HgChangelogException (extends HgInvalidControlFileException)
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439 throw new HgInvalidControlFileException("Failed reading changelog", ex, null).setRevisionIndex(revisionNumber);
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440 }
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441 }
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442
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443 public <T> T getAdapter(Class<T> adapterClass) {
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444 if (adapterClass == Lifecycle.class) {
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445 if (inspectorLifecycle != null) {
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446 return adapterClass.cast(inspectorLifecycle);
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447 }
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448 // reveal interest in lifecycle only when either progress or cancel support is there
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449 // and inspector itself doesn't respond to lifecycle request
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450 // lifecycleStub may still be null here (no progress and cancel), it's ok to cast(null)
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451 return adapterClass.cast(lifecycleStub);
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452
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453 }
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454 return Adaptable.Factory.getAdapter(inspector, adapterClass, null);
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455 }
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456
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457 }
0
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458 }