annotate src/SettingsPaths.cpp @ 794:fa7aa6f543f1

Changed the copyright date within the code files to 2012. git-svn-id: svn://svn.code.sf.net/p/universalindent/code/trunk@1072 59b1889a-e5ac-428c-b0c7-476e01d41282
author thomas_-_s <thomas_-_s@59b1889a-e5ac-428c-b0c7-476e01d41282>
date Sun, 01 Jan 2012 15:57:45 +0000
parents f3631db17328
children 4950731d52c1
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1 /***************************************************************************
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2 * Copyright (C) 2006-2012 by Thomas Schweitzer *
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3 * thomas-schweitzer(at)arcor.de *
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4 * *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License version 2.0 as *
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7 * published by the Free Software Foundation. *
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8 * *
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9 * This program is distributed in the hope that it will be useful, *
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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12 * GNU General Public License for more details. *
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13 * *
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14 * You should have received a copy of the GNU General Public License *
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15 * along with this program in the file LICENSE.GPL; if not, write to the *
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16 * Free Software Foundation, Inc., *
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17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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18 ***************************************************************************/
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19
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20 #include "SettingsPaths.h"
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22 #include <QCoreApplication>
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23 #include <QFile>
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24 #include <QDir>
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25 #include <QDirIterator>
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26 #include <QStack>
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27 #include <QtDebug>
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29 #include <stdlib.h>
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31 //! \defgroup grp_Settings All concerning applications settings.
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32
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33 /*!
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34 \class SettingsPaths
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35 \ingroup grp_Settings
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36 \brief SettingsPaths is a pure static functions class from which info about the
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37 paths needed for settings can be retrieved.
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38 */
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39
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40 bool SettingsPaths::_alreadyInitialized = false;
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41 QString SettingsPaths::_applicationBinaryPath = "";
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42 QString SettingsPaths::_settingsPath = "";
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43 QString SettingsPaths::_globalFilesPath = "";
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44 QString SettingsPaths::_indenterPath = "";
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45 QString SettingsPaths::_tempPath = "";
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46 bool SettingsPaths::_portableMode = false;
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47
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48
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49 /*!
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50 \brief Initializes all available information about the paths.
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51
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52 Mainly during this init it is detected whether to start in portable mode or not. This is
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53 done by testing whether the directory "config" is in the same directory as this
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54 applications executable file.
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55 In portable mode all data is ONLY written to subdirectories of the applications executable file.
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56 Means also that the directory "indenters" has to be there.
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57 In not portable mode (multiuser mode) only users home directory is used for writing config data.
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58 */
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59 void SettingsPaths::init() {
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60 _alreadyInitialized = true;
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61
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62 qDebug() << __LINE__ << " " << __FUNCTION__ << ": Initializing application paths.";
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64 // Get the applications binary path, with respect to MacOSXs use of the .app folder.
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65 _applicationBinaryPath = QCoreApplication::applicationDirPath();
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66 // Remove any trailing slashes
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67 while ( _applicationBinaryPath.right(1) == "/" ) {
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68 _applicationBinaryPath.chop(1);
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69 }
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71 #ifdef UNIVERSALINDENTGUI_NPP_EXPORTS
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72 _applicationBinaryPath += "/plugins/uigui";
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73 #endif
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75 #ifdef Q_OS_MAC
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76 // Because on Mac universal binaries are used, the binary path is not equal
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77 // to the applications (.app) path. So get the .apps path here.
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78 int indexOfDotApp = _applicationBinaryPath.indexOf(".app");
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79 if ( indexOfDotApp != -1 ) {
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80 // Cut off after the dot of ".app".
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81 _applicationBinaryPath = _applicationBinaryPath.left( indexOfDotApp-1 );
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82 // Cut off after the first slash that was in front of ".app" (normally this is the word "UniversalIndentGUI")
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83 _applicationBinaryPath = _applicationBinaryPath.left( _applicationBinaryPath.lastIndexOf("/") );
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84 }
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85 #endif
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86
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87 // If the "config" directory is a subdir of the applications binary path, use this one (portable mode)
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88 _settingsPath = _applicationBinaryPath + "/config";
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89 if ( QFile::exists( _settingsPath ) ) {
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90 _portableMode = true;
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91 QDir dirCreator;
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92 _globalFilesPath = _applicationBinaryPath;
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93 _indenterPath = _applicationBinaryPath + "/indenters";
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94 dirCreator.mkpath( _settingsPath );
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95 _tempPath = _applicationBinaryPath + "/temp";
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96 //TODO: If the portable drive has write protection, use local temp path and clean it up on exit.
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97 dirCreator.mkpath( _tempPath );
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98 }
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99 // ... otherwise use the system specific global application data path.
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100 else {
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101 _portableMode = false;
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102 QDir dirCreator;
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103 #ifdef Q_OS_WIN
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104 // Get the local users application settings directory.
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105 // Remove any trailing slashes.
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106 _settingsPath = QDir::fromNativeSeparators( qgetenv("APPDATA") );
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107 while ( _settingsPath.right(1) == "/" ) {
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108 _settingsPath.chop(1);
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109 }
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110 _settingsPath = _settingsPath + "/UniversalIndentGUI";
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111
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112 // On windows systems the directories "indenters", "translations" are subdirs of the _applicationBinaryPath.
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113 _globalFilesPath = _applicationBinaryPath;
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114 #else
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115 // Remove any trailing slashes.
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116 _settingsPath = QDir::homePath();
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117 while ( _settingsPath.right(1) == "/" ) {
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118 _settingsPath.chop(1);
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119 }
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120 _settingsPath = _settingsPath + "/.universalindentgui";
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121 _globalFilesPath = "/usr/share/universalindentgui";
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122 #endif
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123 dirCreator.mkpath( _settingsPath );
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124 // If a highlighter config file does not exist in the users home config dir
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125 // copy the default config file over there.
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126 if ( !QFile::exists(_settingsPath+"/UiGuiSyntaxHighlightConfig.ini") ) {
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127 QFile::copy( _globalFilesPath+"/config/UiGuiSyntaxHighlightConfig.ini", _settingsPath+"/UiGuiSyntaxHighlightConfig.ini" );
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128 }
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129 _indenterPath = _globalFilesPath + "/indenters";
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130
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131 // On different systems it may be that "QDir::tempPath()" ends with a "/" or not. So check this.
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132 // Remove any trailing slashes.
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133 _tempPath = QDir::tempPath();
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134 while ( _tempPath.right(1) == "/" ) {
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135 _tempPath.chop(1);
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136 }
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137 _tempPath = _tempPath + "/UniversalIndentGUI";
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138
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139 #if defined(Q_OS_WIN32)
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140 dirCreator.mkpath( _tempPath );
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141 #else
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142 // On Unix based systems create a random temporary directory for security
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143 // reasons. Otherwise an evil human being could create a symbolic link
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144 // to an important existing file which gets overwritten when UiGUI writes
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145 // into this normally temporary but linked file.
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146 char *pathTemplate = new char[_tempPath.length()+8];
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147 QByteArray pathTemplateQBA = QString(_tempPath + "-XXXXXX").toAscii();
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148 delete [] pathTemplate;
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149 pathTemplate = pathTemplateQBA.data();
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150 pathTemplate = mkdtemp( pathTemplate );
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151 _tempPath = pathTemplate;
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152 #endif
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153 }
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154
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155 qDebug() << __LINE__ << " " << __FUNCTION__ << ": Paths are:" \
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156 "<ul><li>_applicationBinaryPath=" << _applicationBinaryPath \
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157 << "</li><li>_settingsPath=" << _settingsPath \
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158 << "</li><li>_globalFilesPath=" << _globalFilesPath \
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159 << "</li><li>_indenterPath=" << _indenterPath \
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160 << "</li><li>_tempPath=" << _tempPath \
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161 << "</li><li>Running in portable mode=" << _portableMode << "</li></ul>";
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162 }
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163
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164
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165 /*!
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166 \brief Returns the path of the applications executable.
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167 */
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168 const QString SettingsPaths::getApplicationBinaryPath() {
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169 if ( !_alreadyInitialized ) {
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170 SettingsPaths::init();
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171 }
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172 return _applicationBinaryPath;
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173 }
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174
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175
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176 /*!
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177 \brief Returns the path where all settings are being/should be written to.
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178 */
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179 const QString SettingsPaths::getSettingsPath() {
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180 if ( !_alreadyInitialized ) {
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181 SettingsPaths::init();
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182 }
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183 return _settingsPath;
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184 }
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185
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186
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187 /*!
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188 \brief Returns the path where the files concerning all users reside. For example translations.
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189 */
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190 const QString SettingsPaths::getGlobalFilesPath() {
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191 if ( !_alreadyInitialized ) {
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192 SettingsPaths::init();
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193 }
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194 return _globalFilesPath;
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195 }
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196
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197
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198 /*!
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199 \brief Returns the path where the indenter executables reside.
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200 */
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201 const QString SettingsPaths::getIndenterPath() {
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202 if ( !_alreadyInitialized ) {
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203 SettingsPaths::init();
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204 }
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205 return _indenterPath;
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206 }
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207
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208
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209 /*!
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210 \brief Returns the path where the where all temporary data should be written to.
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211 */
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212 const QString SettingsPaths::getTempPath() {
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213 if ( !_alreadyInitialized ) {
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214 SettingsPaths::init();
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215 }
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216 return _tempPath;
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217 }
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218
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219
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220 /*!
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221 \brief Returns true if portable mode shall be used.
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222 */
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223 bool SettingsPaths::getPortableMode() {
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224 if ( !_alreadyInitialized ) {
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225 SettingsPaths::init();
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226 }
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227 return _portableMode;
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228 }
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229
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230
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231 /*!
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232 \brief Completely deletes the created temporary directory with all of its content.
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233 */
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234 void SettingsPaths::cleanAndRemoveTempDir() {
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235 QDirIterator dirIterator(_tempPath, QDirIterator::Subdirectories);
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236 QStack<QString> directoryStack;
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237 bool noErrorsOccurred = true;
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238
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239 while ( dirIterator.hasNext() ) {
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240 QString currentDirOrFile = dirIterator.next();
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241 // If this dummy call isn't done here, calling "dirIterator.fileInfo().isDir()" later somehow fails.
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242 dirIterator.fileInfo();
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243
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244 if ( !currentDirOrFile.isEmpty() && dirIterator.fileName() != "." && dirIterator.fileName() != ".." ) {
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245 // There is a path on the stack but the current path doesn't start with that path.
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246 // So we changed into another parent directory and the one on the stack can be deleted
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247 // since it must be empty.
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248 if ( !directoryStack.isEmpty() && !currentDirOrFile.startsWith(directoryStack.top()) ) {
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249 QString dirToBeRemoved = directoryStack.pop();
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250 bool couldRemoveDir = QDir(dirToBeRemoved).rmdir(dirToBeRemoved);
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251 noErrorsOccurred &= couldRemoveDir;
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252 if ( couldRemoveDir == false )
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253 qWarning() << __LINE__ << " " << __FUNCTION__ << "Could not remove the directory: " << dirToBeRemoved;
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254 //qDebug() << "Removing Dir " << directoryStack.pop();
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255 }
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256
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257 // If the iterator currently points to a directory push it onto the stack.
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258 if ( dirIterator.fileInfo().isDir() ) {
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259 directoryStack.push( currentDirOrFile );
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260 //qDebug() << "Pushing onto Stack " << currentDirOrFile;
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261 }
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262 // otherwise it must be a file, so delete it.
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263 else {
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264 bool couldRemoveFile = QFile::remove( currentDirOrFile );
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265 noErrorsOccurred &= couldRemoveFile;
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266 if ( couldRemoveFile == false )
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267 qWarning() << __LINE__ << " " << __FUNCTION__ << "Could not remove the file: " << currentDirOrFile;
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268 //qDebug() << "Removing File " << currentDirOrFile;
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269 }
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270 }
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271 }
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272 noErrorsOccurred &= QDir(_tempPath).rmdir(_tempPath);
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273 if ( noErrorsOccurred == false )
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274 qWarning() << __LINE__ << " " << __FUNCTION__ << "While cleaning up the temp dir an error occurred.";
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275 }