Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/HgChangelog.java @ 449:5787e912f60e smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Speed up changeset phase detection when no parent cache is avalable
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 07 Jun 2012 16:01:09 +0200
parents 73e875154afb
children 528b6780a8bd
rev   line source
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1 /*
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2 * Copyright (c) 2010-2011 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 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.Collection;
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25 import java.util.Collections;
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26 import java.util.Date;
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27 import java.util.Formatter;
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28 import java.util.HashMap;
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29 import java.util.List;
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30 import java.util.Locale;
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31 import java.util.Map;
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32 import java.util.TimeZone;
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33
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34 import org.tmatesoft.hg.core.HgBadArgumentException;
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35 import org.tmatesoft.hg.core.HgException;
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36 import org.tmatesoft.hg.core.HgInvalidControlFileException;
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37 import org.tmatesoft.hg.core.HgInvalidRevisionException;
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38 import org.tmatesoft.hg.core.Nodeid;
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39 import org.tmatesoft.hg.internal.DataAccess;
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40 import org.tmatesoft.hg.internal.IterateControlMediator;
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41 import org.tmatesoft.hg.internal.Lifecycle;
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42 import org.tmatesoft.hg.internal.Pool;
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43 import org.tmatesoft.hg.internal.RevlogStream;
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44 import org.tmatesoft.hg.util.CancelSupport;
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45 import org.tmatesoft.hg.util.Pair;
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46 import org.tmatesoft.hg.util.ProgressSupport;
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47
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48 /**
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49 * Representation of the Mercurial changelog file (list of ChangeSets)
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50 *
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51 * @author Artem Tikhomirov
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52 * @author TMate Software Ltd.
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53 */
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54 public class HgChangelog extends Revlog {
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55
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56 /* package-local */HgChangelog(HgRepository hgRepo, RevlogStream content) {
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57 super(hgRepo, content);
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58 }
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60 public void all(final HgChangelog.Inspector inspector) throws HgInvalidRevisionException, HgInvalidControlFileException {
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61 range(0, getLastRevision(), inspector);
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62 }
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64 public void range(int start, int end, final HgChangelog.Inspector inspector) throws HgInvalidRevisionException, HgInvalidControlFileException {
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65 if (inspector == null) {
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66 throw new IllegalArgumentException();
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67 }
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68 content.iterate(start, end, true, new RawCsetParser(inspector));
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69 }
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71 public List<RawChangeset> range(int start, int end) throws HgInvalidRevisionException, HgInvalidControlFileException {
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72 final RawCsetCollector c = new RawCsetCollector(end - start + 1);
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73 range(start, end, c);
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74 return c.result;
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75 }
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77 /**
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78 * Access individual revisions. Note, regardless of supplied revision order, inspector gets
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79 * changesets strictly in the order they are in the changelog.
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80 * @param inspector callback to get changesets
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81 * @param revisions revisions to read, unrestricted ordering.
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82 */
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83 public void range(final HgChangelog.Inspector inspector, final int... revisions) throws HgInvalidRevisionException, HgInvalidControlFileException {
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84 Arrays.sort(revisions);
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85 rangeInternal(inspector, revisions);
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86 }
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87
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88 /**
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89 * Friends-only version of {@link #range(Inspector, int...)}, when callers know array is sorted
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90 */
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91 /*package-local*/ void rangeInternal(HgChangelog.Inspector inspector, int[] sortedRevisions) throws HgInvalidRevisionException, HgInvalidControlFileException {
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92 if (sortedRevisions == null || sortedRevisions.length == 0) {
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93 return;
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94 }
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95 if (inspector == null) {
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96 throw new IllegalArgumentException();
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97 }
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98 content.iterate(sortedRevisions, true, new RawCsetParser(inspector));
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99 }
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100
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101 /**
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102 * @throws HgInvalidRevisionException if supplied nodeid doesn't identify any revision from this revlog
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103 * @throws HgInvalidControlFileException if access to revlog index/data entry failed
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104 */
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105 public RawChangeset changeset(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException {
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106 int x = getRevisionIndex(nid);
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107 return range(x, x).get(0);
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108 }
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110 public interface Inspector {
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111 // TODO describe whether cset is new instance each time
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112 // describe what revisionNumber is when Inspector is used with HgBundle (BAD_REVISION or bundle's local order?)
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113 void next(int revisionNumber, Nodeid nodeid, RawChangeset cset);
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114 }
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115
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116 /**
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117 * Unlike regular {@link Inspector}, this one supplies changeset revision along with its parents and children according
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118 * to parent information of the revlog this inspector visits.
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119 * @see HgDataFile#history(TreeInspector)
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120 * @deprecated use {@link HgChangesetTreeHandler} and HgLogCommand#execute(HgChangesetTreeHandler)}
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121 */
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122 @Deprecated
317
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123 public interface TreeInspector {
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124 // the reason TreeInsector is in HgChangelog, not in Revlog, because despite the fact it can
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125 // be applied to any revlog, it's not meant to provide revisions of any revlog it's beeing applied to,
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126 // but changeset revisions always.
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127 // TODO HgChangelog.walk(TreeInspector)
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128 void next(Nodeid changesetRevision, Pair<Nodeid, Nodeid> parentChangesets, Collection<Nodeid> childChangesets);
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129 }
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130
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131 /**
129
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132 * Entry in the Changelog
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133 */
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134 public static class RawChangeset implements Cloneable /* for those that would like to keep a copy */{
129
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135 // TODO immutable
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136 private/* final */Nodeid manifest;
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137 private String user;
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138 private String comment;
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139 private List<String> files; // unmodifiable collection (otherwise #files() and implicit #clone() shall be revised)
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140 private Date time;
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141 private int timezone;
161
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142 // 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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143 private Map<String, String> extras;
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144
153
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145 /**
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146 * @see mercurial/changelog.py:read()
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147 *
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148 * <pre>
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149 * format used:
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150 * nodeid\n : manifest node in ascii
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151 * user\n : user, no \n or \r allowed
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152 * time tz extra\n : date (time is int or float, timezone is int)
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153 * : extra is metadatas, encoded and separated by '\0'
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154 * : older versions ignore it
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155 * files\n\n : files modified by the cset, no \n or \r allowed
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156 * (.*) : comment (free text, ideally utf-8)
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157 *
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158 * changelog v0 doesn't use extra
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159 * </pre>
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160 */
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161 private RawChangeset() {
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162 }
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163
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164 public Nodeid manifest() {
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165 return manifest;
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166 }
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167
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168 public String user() {
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169 return user;
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170 }
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171
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172 public String comment() {
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173 return comment;
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174 }
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175
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176 public List<String> files() {
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177 return files;
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178 }
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179
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180 public Date date() {
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181 return time;
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182 }
211
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183
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184 /**
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185 * @return time zone value, as is, positive for Western Hemisphere.
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186 */
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187 public int timezone() {
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188 return timezone;
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189 }
153
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190
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191 public String dateString() {
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192 // XXX keep once formatted? Perhaps, there's faster way to set up calendar/time zone?
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193 StringBuilder sb = new StringBuilder(30);
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194 Formatter f = new Formatter(sb, Locale.US);
211
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195 TimeZone tz = TimeZone.getTimeZone(TimeZone.getAvailableIDs(timezone * 1000)[0]);
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196 // apparently timezone field records number of seconds time differs from UTC,
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197 // i.e. value to substract from time to get UTC time. Calendar seems to add
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198 // timezone offset to UTC, instead, hence sign change.
211
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199 // tz.setRawOffset(timezone * -1000);
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200 Calendar c = Calendar.getInstance(tz, Locale.US);
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201 c.setTime(time);
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202 f.format("%ta %<tb %<td %<tH:%<tM:%<tS %<tY %<tz", c);
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203 return sb.toString();
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204 }
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205
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206 public Map<String, String> extras() {
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207 return extras;
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208 }
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209
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210 public String branch() {
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211 return extras.get("branch");
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212 }
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213
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214 @Override
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215 public String toString() {
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216 StringBuilder sb = new StringBuilder();
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217 sb.append("Changeset {");
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218 sb.append("User: ").append(user).append(", ");
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219 sb.append("Comment: ").append(comment).append(", ");
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220 sb.append("Manifest: ").append(manifest).append(", ");
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221 sb.append("Date: ").append(time).append(", ");
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222 sb.append("Files: ").append(files.size());
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223 for (String s : files) {
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224 sb.append(", ").append(s);
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225 }
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226 if (extras != null) {
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227 sb.append(", Extra: ").append(extras);
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228 }
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229 sb.append("}");
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230 return sb.toString();
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231 }
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232
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233 @Override
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234 public RawChangeset clone() {
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235 try {
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236 return (RawChangeset) super.clone();
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237 } catch (CloneNotSupportedException ex) {
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238 throw new InternalError(ex.toString());
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239 }
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240 }
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241
366
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242 /*package*/ static RawChangeset parse(DataAccess da) throws IOException, HgBadArgumentException {
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243 byte[] data = da.byteArray();
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244 RawChangeset rv = new RawChangeset();
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245 rv.init(data, 0, data.length, null);
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246 return rv;
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247 }
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248
196
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249 // @param usersPool - it's likely user names get repeated again and again throughout repository. can be null
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250 // FIXME replace HgBadArgumentException with HgInvalidDataFormatException or HgInvalidControlFileException
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251 /* package-local */void init(byte[] data, int offset, int length, Pool<String> usersPool) throws HgBadArgumentException {
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252 final int bufferEndIndex = offset + length;
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253 final byte lineBreak = (byte) '\n';
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254 int breakIndex1 = indexOf(data, lineBreak, offset, bufferEndIndex);
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255 if (breakIndex1 == -1) {
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256 throw new HgBadArgumentException("Bad Changeset data", null);
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257 }
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258 Nodeid _nodeid = Nodeid.fromAscii(data, 0, breakIndex1);
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259 int breakIndex2 = indexOf(data, lineBreak, breakIndex1 + 1, bufferEndIndex);
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260 if (breakIndex2 == -1) {
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261 throw new HgBadArgumentException("Bad Changeset data", null);
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262 }
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263 String _user = new String(data, breakIndex1 + 1, breakIndex2 - breakIndex1 - 1);
196
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264 if (usersPool != null) {
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265 _user = usersPool.unify(_user);
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266 }
153
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267 int breakIndex3 = indexOf(data, lineBreak, breakIndex2 + 1, bufferEndIndex);
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268 if (breakIndex3 == -1) {
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
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269 throw new HgBadArgumentException("Bad Changeset data", null);
153
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270 }
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271 String _timeString = new String(data, breakIndex2 + 1, breakIndex3 - breakIndex2 - 1);
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272 int space1 = _timeString.indexOf(' ');
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273 if (space1 == -1) {
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
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274 throw new HgBadArgumentException(String.format("Bad Changeset data: %s in [%d..%d]", "time string", breakIndex2+1, breakIndex3), null);
153
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275 }
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276 int space2 = _timeString.indexOf(' ', space1 + 1);
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277 if (space2 == -1) {
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278 space2 = _timeString.length();
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279 }
363
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280 long unixTime = Long.parseLong(_timeString.substring(0, space1));
153
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281 int _timezone = Integer.parseInt(_timeString.substring(space1 + 1, space2));
363
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282 // unixTime is local time, and timezone records difference of the local time to UTC.
153
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283 Date _time = new Date(unixTime * 1000);
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284 String _extras = space2 < _timeString.length() ? _timeString.substring(space2 + 1) : null;
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285 Map<String, String> _extrasMap;
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
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diff changeset
286 final String extras_branch_key = "branch";
386
73e875154afb Do not fail with empty extras string in changeset
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diff changeset
287 if (_extras == null || _extras.trim().length() == 0) {
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
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288 _extrasMap = Collections.singletonMap(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME);
153
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289 } else {
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290 _extrasMap = new HashMap<String, String>();
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291 for (String pair : _extras.split("\00")) {
363
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diff changeset
292 pair = decode(pair);
153
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diff changeset
293 int eq = pair.indexOf(':');
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294 _extrasMap.put(pair.substring(0, eq), pair.substring(eq + 1));
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295 }
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 242
diff changeset
296 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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297 _extrasMap.put(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME);
153
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298 }
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299 _extrasMap = Collections.unmodifiableMap(_extrasMap);
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300 }
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301
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302 //
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diff changeset
303 int lastStart = breakIndex3 + 1;
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diff changeset
304 int breakIndex4 = indexOf(data, lineBreak, lastStart, bufferEndIndex);
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diff changeset
305 ArrayList<String> _files = null;
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diff changeset
306 if (breakIndex4 > lastStart) {
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diff changeset
307 // if breakIndex4 == lastStart, we already found \n\n and hence there are no files (e.g. merge revision)
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diff changeset
308 _files = new ArrayList<String>(5);
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diff changeset
309 while (breakIndex4 != -1 && breakIndex4 + 1 < bufferEndIndex) {
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diff changeset
310 _files.add(new String(data, lastStart, breakIndex4 - lastStart));
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diff changeset
311 lastStart = breakIndex4 + 1;
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diff changeset
312 if (data[breakIndex4 + 1] == lineBreak) {
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diff changeset
313 // found \n\n
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diff changeset
314 break;
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diff changeset
315 } else {
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diff changeset
316 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
317 }
153
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diff changeset
318 }
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diff changeset
319 if (breakIndex4 == -1 || breakIndex4 >= bufferEndIndex) {
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
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diff changeset
320 throw new HgBadArgumentException("Bad Changeset data", null);
153
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diff changeset
321 }
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diff changeset
322 } else {
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diff changeset
323 breakIndex4--;
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diff changeset
324 }
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diff changeset
325 String _comment;
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diff changeset
326 try {
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diff changeset
327 _comment = new String(data, breakIndex4 + 2, bufferEndIndex - breakIndex4 - 2, "UTF-8");
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diff changeset
328 // FIXME respect ui.fallbackencoding and try to decode if set
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diff changeset
329 } catch (UnsupportedEncodingException ex) {
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diff changeset
330 _comment = "";
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 365
diff changeset
331 // Could hardly happen
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
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diff changeset
332 throw new HgBadArgumentException("Bad Changeset data", ex);
153
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diff changeset
333 }
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diff changeset
334 // change this instance at once, don't leave it partially changes in case of error
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diff changeset
335 this.manifest = _nodeid;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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336 this.user = _user;
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
337 this.time = _time;
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diff changeset
338 this.timezone = _timezone;
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diff changeset
339 this.files = _files == null ? Collections.<String> emptyList() : Collections.unmodifiableList(_files);
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diff changeset
340 this.comment = _comment;
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diff changeset
341 this.extras = _extrasMap;
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diff changeset
342 }
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
343
153
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diff changeset
344 private static int indexOf(byte[] src, byte what, int startOffset, int endIndex) {
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diff changeset
345 for (int i = startOffset; i < endIndex; i++) {
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
346 if (src[i] == what) {
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diff changeset
347 return i;
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parents: 146
diff changeset
348 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 146
diff changeset
349 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
350 return -1;
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parents: 146
diff changeset
351 }
363
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
352
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
353 private static String decode(String s) {
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
354 if (s != null && s.indexOf('\\') != -1) {
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
355 // TestAuxUtilities#testChangelogExtrasDecode
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
356 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
357 }
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
358 return s;
d9dfa9fe9cec Decode escape sequences in changeset extras field
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 360
diff changeset
359 }
129
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
360 }
645829962785 core.Cset renamed to HgChangeset; repo.Changeset moved into HgChangelog
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
361
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
362 private static class RawCsetCollector implements Inspector {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
363 final ArrayList<RawChangeset> result;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
364
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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diff changeset
365 public RawCsetCollector(int count) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
366 result = new ArrayList<RawChangeset>(count > 0 ? count : 5);
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
367 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
368
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
369 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
370 result.add(cset.clone());
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
371 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
372 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
373
312
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 252
diff changeset
374 private static class RawCsetParser implements RevlogStream.Inspector, Lifecycle {
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
375
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
376 private final Inspector inspector;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
377 private final Pool<String> usersPool;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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diff changeset
378 private final RawChangeset cset = new RawChangeset();
312
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
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parents: 252
diff changeset
379 private final ProgressSupport progressHelper;
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 252
diff changeset
380 private IterateControlMediator iterateControl;
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
381
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
382 public RawCsetParser(HgChangelog.Inspector delegate) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
383 assert delegate != null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
384 inspector = delegate;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
385 usersPool = new Pool<String>();
312
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 252
diff changeset
386 progressHelper = ProgressSupport.Factory.get(delegate);
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
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parents: 182
diff changeset
387 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
388
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 365
diff changeset
389 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) throws HgException {
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
390 try {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
391 byte[] data = da.byteArray();
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
392 cset.init(data, 0, data.length, usersPool);
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
393 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 182
diff changeset
394 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
312
f9f3e9b67ccc Facilitate cancellation and progress reporting in changelog and manifest iterations
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395 progressHelper.worked(1);
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396 } catch (IOException ex) {
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397 throw new HgException(ex); // XXX need better exception, perhaps smth like HgChangelogException (extends HgInvalidControlFileException)
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398 }
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399 if (iterateControl != null) {
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400 iterateControl.checkCancelled();
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401 }
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402 }
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403
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404 public void start(int count, Callback callback, Object token) {
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405 CancelSupport cs = CancelSupport.Factory.get(inspector, null);
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406 iterateControl = cs == null ? null : new IterateControlMediator(cs, callback);
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407 progressHelper.start(count);
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408 }
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409
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410 public void finish(Object token) {
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411 progressHelper.done();
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412 }
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413 }
0
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414 }