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annotate engine/core/vfs/dat/dat2.cpp @ 37:0d325e9d5953

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added unittest++ files into ext. Not hooked into build scripts yet
author jasoka@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 12 Jul 2008 12:00:57 +0000
parents 4a0efb7baf70
children 90005975cdbb
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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1 /***************************************************************************
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or modify *
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7 * it under the terms of the GNU General Public License as published by *
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8 * the Free Software Foundation; either version 2 of the License, or *
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9 * (at your option) any later version. *
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10 * *
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11 * This program is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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14 * GNU General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU General Public License *
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17 * along with this program; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23
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24 // 3rd party library includes
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25 #include <boost/bind.hpp>
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26
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27 // FIFE includes
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28 // These includes are split up in two parts, separated by one empty line
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29 // First block: files included from the FIFE root src directory
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30 // Second block: files included from the same folder
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31 #include "vfs/raw/rawdata.h"
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32 #include "util/base/exception.h"
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33 #include "util/log/logger.h"
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34
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35 #include "dat2.h"
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36
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37 namespace FIFE {
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38 static Logger _log(LM_FO_LOADERS);
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39
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40 DAT2::DAT2(VFS* vfs, const std::string& file)
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41 : VFSSource(vfs), m_datpath(file), m_data(vfs->open(file)), m_filelist() {
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42
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43 FL_LOG(_log, LMsg("MFFalloutDAT2")
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44 << "loading: " << file
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45 << " filesize: " << m_data->getDataLength());
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46
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47 m_data->setIndex(m_data->getDataLength() - 8);
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48 uint32_t fileListLength = m_data->read32Little();
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49 uint32_t archiveSize = m_data->read32Little();
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50
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51 FL_LOG(_log, LMsg("MFFalloutDAT2")
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52 << "FileListLength: " << fileListLength
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53 << " ArchiveSize: " << archiveSize);
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54
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55 if (archiveSize != m_data->getDataLength())
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56 throw InvalidFormat("size mismatch");
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57
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58 m_data->setIndex( archiveSize - fileListLength - 8);
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59 m_filecount = m_data->read32Little();
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60 m_currentIndex = m_data->getCurrentIndex();
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61
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62 FL_LOG(_log, LMsg("MFFalloutDAT2 FileCount: ") << m_filecount);
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63
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64 // Do not read the complete file list at startup.
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65 // Instead read a chunk each frame.
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66 m_timer.setInterval(0);
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67 m_timer.setCallback( boost::bind( &DAT2::readFileEntry, this) );
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68 m_timer.start();
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69 }
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70
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71 void DAT2::readFileEntry() const {
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72 assert( m_filecount != 0);
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73
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74 // Load more items per call,
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75 // otherwise it takes _ages_ until everything is in.
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76 unsigned int load_per_cycle = 50;
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77 if( load_per_cycle > m_filecount )
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78 load_per_cycle = m_filecount;
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79 m_filecount -= load_per_cycle;
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80
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81 // Save the old index in an exception save way.
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82 IndexSaver isaver(m_data.get());
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83
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84 // Move index to file list and read the entries.
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85 m_data->setIndex(m_currentIndex);
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86 RawDataDAT2::s_info info;
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87 while( load_per_cycle-- ) {
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88 uint32_t namelen = m_data->read32Little();
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89 info.name = fixPath(m_data->readString(namelen));
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90
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91 info.type = m_data->read8();
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92 info.unpackedLength = m_data->read32Little();
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93 info.packedLength = m_data->read32Little();
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94 info.offset = m_data->read32Little();
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95
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96 m_filelist.insert(std::make_pair(info.name, info));
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97 }
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98 m_currentIndex = m_data->getCurrentIndex();
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99
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100 // Finally log on completion and stop the timer.
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101 if( m_filecount == 0 ) {
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102 FL_LOG(_log, LMsg("MFFalloutDAT2, All file entries in '") << m_datpath << "' loaded.");
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103 m_timer.stop();
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104 }
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105 }
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106
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107 RawData* DAT2::open(const std::string& file) const {
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108 const RawDataDAT2::s_info& info = getInfo(file);
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109 return new RawData(new RawDataDAT2(getVFS(), m_datpath, info));
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110 }
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111
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 bool DAT2::fileExists(const std::string& name) const {
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113 return findFileEntry(name) != m_filelist.end();
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114 }
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115
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116 const RawDataDAT2::s_info& DAT2::getInfo(const std::string& name) const {
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117 type_filelist::const_iterator i = findFileEntry(name);
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118 if (i == m_filelist.end()) {
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119 throw NotFound(name);
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120 }
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121 return i->second;
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122 }
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123
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124 DAT2::type_filelist::const_iterator DAT2::findFileEntry(const std::string& path) const {
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125
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126 // Either the normalization is bogus, or we have to do
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127 // it here, too. Otherwise we can't load the files returned
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128 // by listFiles.
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129
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130 std::string name = path;
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131
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132 // Normalize the path
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133 if (name.find("./") == 0) {
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134 name.erase(0, 2);
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135 }
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136
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137 type_filelist::const_iterator i = m_filelist.find(name);
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138
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139 // We might have another chance to find the file
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140 // if the number of file entries not zero.
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141 if ( m_filecount && i == m_filelist.end()) {
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142 FL_LOG(_log, LMsg("MFFalloutDAT2")
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143 << "Missing '" << name
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144 << "' in partially(" << m_filecount <<") loaded "<< m_datpath);
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145 while( m_filecount && i == m_filelist.end()) {
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146 readFileEntry();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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147 i = m_filelist.find(name);
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148 }
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149 }
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150 return i;
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151 }
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152
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153
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154 std::set<std::string> DAT2::listFiles(const std::string& pathstr) const {
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155 return list(pathstr, false);
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156 }
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157
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158 std::set<std::string> DAT2::listDirectories(const std::string& pathstr) const {
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159 return list(pathstr, true);
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160 }
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161
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162 std::set<std::string> DAT2::list(const std::string& pathstr, bool dirs) const {
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163 std::set<std::string> list;
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164 std::string path = pathstr;
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165
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166 // Force loading the complete file entries
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167 // This is a costly operation... right after startup.
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168 // Later this should do nothing.
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169 while( m_filecount ) {
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170 readFileEntry();
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171 }
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172
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173 // Normalize the path
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diff changeset
174 if (path.find("./") == 0) {
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175 path.erase(0, 2);
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176 }
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177
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178 int lastIndex = path.size() - 1;
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179 if ((lastIndex != -1) && path[lastIndex] != '/') {
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180 path += '/';
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181 }
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182
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183 type_filelist::const_iterator end = m_filelist.end();
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184 for (type_filelist::const_iterator i = m_filelist.begin(); i != end; ++i) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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diff changeset
185 const std::string& file = i->first;
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186 if (file.find(path) == 0) {
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diff changeset
187 std::string cleanedfile = file.substr(path.size(), file.size()); // strip the pathstr
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diff changeset
188 bool isdir = cleanedfile.find('/') != std::string::npos; // if we still have a / it's a subdir
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189
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190 if (isdir) {
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191 cleanedfile = cleanedfile.substr(0, cleanedfile.find('/'));
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diff changeset
192 if (cleanedfile.find('/') != cleanedfile.rfind('/')) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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193 // check if this is a direct subdir
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
194 continue;
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195 }
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196 }
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197
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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198 if (isdir == dirs) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
199 list.insert(cleanedfile);
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200 }
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201 }
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202 }
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203
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
204 return list;
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205 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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206 } // FIFE