vaikene.ee Git - evaf/blob - src/libs/Common/env.cpp

   1 /**
   2  * @file Common/env.cpp
   3  * @brief iEnv interface implementation
   4  * @author Enar Vaikene
   5  *
   6  * Copyright (c) 2011 Enar Vaikene
   7  *
   8  * This file is part of the eVaf C++ cross-platform application development framework.
   9  *
  10  * This file can be used under the terms of the GNU General Public License
  11  * version 3.0 as published by the Free Software Foundation and appearing in
  12  * the file LICENSE included in the packaging of this file. Please review the
  13  * the following information to ensure the GNU General Public License version
  14  * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
  15  *
  16  * Alternatively, this file may be used in accordance with the Commercial License
  17  * Agreement provided with the Software.
  18  */
  19
  20 #include "env.h"
  21 #include "iregistry.h"
  22 #include "globals.h"
  23 #include "version.h"
  24 #include "iapp.h"
  25
  26 #include <QtCore>
  27
  28
  29 //-------------------------------------------------------------------
  30
  31 using namespace eVaf::Common;
  32
  33 iEnv * iEnv::instance()
  34 {
  35     static eVaf::Common::Internal::Env singleton;
  36     return &singleton;
  37 }
  38
  39
  40 //-------------------------------------------------------------------
  41
  42 using namespace eVaf::Common::Internal;
  43
  44 Env::Env()
  45     : iEnv()
  46 {
  47     setObjectName(QString("%1-iEnv").arg(VER_MODULE_NAME_STR));
  48 }
  49
  50 Env::~Env()
  51 {
  52 }
  53
  54 bool Env::init()
  55 {
  56     // Register out interface
  57     iRegistry::instance()->registerInterface("iEnv", this);
  58
  59     // Set initial bin and root directories
  60     mRootDir = mBinDir = qApp->applicationDirPath();
  61     int t = mBinDir.lastIndexOf(QChar('/'), -1);
  62     if (t >= 0)
  63         mRootDir = mBinDir.left(t);
  64
  65     if (!mBinDir.endsWith('/'))
  66         mBinDir.append('/');
  67     if (!mRootDir.endsWith('/'))
  68         mRootDir.append('/');
  69
  70     // Clear other directories
  71     mDataRootDir.clear();
  72     mQtPluginsDir.clear();
  73     mEtcDir.clear();
  74     mLogDir.clear();
  75     mDocDir.clear();
  76
  77     // Set the data root directory
  78 #ifdef Q_OS_LINUX
  79     QString dataLoc = QDir::homePath();
  80     if (!dataLoc.endsWith('/'))
  81         dataLoc.append('/');
  82     dataLoc.append(".local/share/data/");
  83     mDataRootDir = dataLoc + iApp::instance()->name();
  84     if (!mDataRootDir.endsWith('/'))
  85         mDataRootDir.append('/');
  86 #endif
  87     /// @TODO: Needs local data directory on Windows
  88
  89     // Process the environment
  90     QStringList env = QProcessEnvironment::systemEnvironment().toStringList();
  91     int sz = env.size();
  92     for (int i = 0; i < sz; ++i) {
  93         // Get the name/value pair
  94         QString name = env.at(i).section('=', 0, 0).trimmed();
  95         QString value = env.at(i).section('=', 1).trimmed();
  96
  97         if (name == "EVAF_ROOT_DIR") {
  98             mRootDir = value;
  99             if (!mRootDir.endsWith('/'))
 100                 mRootDir.append('/');
 101         }
 102         else if (name == "EVAF_DATA_ROOT_DIR") {
 103             mDataRootDir = value;
 104             if (!mDataRootDir.endsWith('/'))
 105                 mDataRootDir.append('/');
 106         }
 107         else if (name == "EVAF_ETC_DIR") {
 108             mEtcDir = value;
 109             if (!mEtcDir.endsWith('/'))
 110                 mEtcDir.append('/');
 111         }
 112         else if (name == "EVAF_LOG_DIR") {
 113             mLogDir = value;
 114             if (!mLogDir.endsWith('/'))
 115                 mLogDir.append('/');
 116         }
 117         else if (name == "EVAF_DOC_DIR") {
 118             mDocDir = value;
 119             if (!mDocDir.endsWith('/'))
 120                 mDocDir.append('/');
 121         }
 122         else if (name == "EVAF_QT_PLUGINS_DIR") {
 123             mQtPluginsDir = value;
 124             if (!mQtPluginsDir.endsWith('/'))
 125                 mQtPluginsDir.append('/');
 126         }
 127     }
 128
 129     // Then process comman-line arguments
 130     env = QCoreApplication::arguments();
 131     sz = env.size();
 132     for (int i = 0; i < sz; ++i) {
 133         // Get the name and optional value
 134         QStringList arg = env.at(i).simplified().split(QChar('='));
 135
 136         if (QRegExp("-[-]?root(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 137             mRootDir = arg.at(1);
 138             if (!mRootDir.endsWith('/'))
 139                 mRootDir.append('/');
 140         }
 141         else if (QRegExp("-[-]?dataroot(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 142             mDataRootDir = arg.at(1);
 143             if (!mDataRootDir.endsWith('/'))
 144                 mDataRootDir.append('/');
 145         }
 146         else if (QRegExp("-[-]?etc(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 147             mEtcDir = arg.at(1);
 148             if (!mEtcDir.endsWith('/'))
 149                 mEtcDir.append('/');
 150         }
 151         else if (QRegExp("-[-]?log(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 152             mLogDir = arg.at(1);
 153             if (!mLogDir.endsWith('/'))
 154                 mLogDir.append('/');
 155         }
 156         else if (QRegExp("-[-]?doc(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 157             mDocDir = arg.at(1);
 158             if (!mDocDir.endsWith('/'))
 159                 mDocDir.append('/');
 160         }
 161         else if (QRegExp("-[-]?qtplugins(dir)?").exactMatch(arg.at(0)) && arg.size() > 1) {
 162             mQtPluginsDir = arg.at(1);
 163             if (!mQtPluginsDir.endsWith('/'))
 164                 mQtPluginsDir.append('/');
 165         }
 166     }
 167
 168     return true;
 169 }
 170
 171 QString const Env::dataRootDir() const
 172 {
 173     // Fall-back to the application's root directory if the data root directory is empty
 174     if (mDataRootDir.isEmpty())
 175         mDataRootDir = rootDir();
 176     return mDataRootDir;
 177 }
 178
 179 QString const Env::etcDir() const
 180 {
 181     if (mEtcDir.isEmpty())
 182         mEtcDir = dataRootDir() + "etc/";
 183     return mEtcDir;
 184 }
 185
 186 QString const Env::logDir() const
 187 {
 188     if (mLogDir.isEmpty())
 189         mLogDir = dataRootDir() + "log/";
 190     return mLogDir;
 191 }
 192
 193 QString const Env::docDir() const
 194 {
 195     if (mDocDir.isEmpty())
 196         mDocDir = rootDir() + "doc/";
 197     return mDocDir;
 198 }
 199
 200 QString const Env::qtPluginsDir() const
 201 {
 202     if (mQtPluginsDir.isEmpty())
 203         mQtPluginsDir = binDir();
 204     return mQtPluginsDir;
 205 }