129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "Config.hpp"
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#include "core/Exception.hpp"
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namespace lms::core
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{
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std::unique_ptr<IConfig> createConfig(const std::filesystem::path& p)
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{
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return std::make_unique<Config>(p);
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}
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Config::Config(const std::filesystem::path& p)
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{
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try
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{
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_config.readFile(p.c_str());
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}
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catch (libconfig::FileIOException& e)
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{
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throw LmsException{ "Cannot open config file '" + p.string() + "'" };
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}
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catch (libconfig::ParseException& e)
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{
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throw LmsException{ "Cannot parse config file '" + p.string() + "', line = " + std::to_string(e.getLine()) + ", error = '" + e.getError() + "'" };
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}
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catch (libconfig::ConfigException& e)
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{
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throw LmsException{ "Cannot open config file '" + p.string() + "': " + e.what() };
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}
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}
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std::string_view Config::getString(std::string_view setting, std::string_view def)
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{
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try
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{
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return static_cast<const char*>(_config.lookup(std::string{ setting }));
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}
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catch (libconfig::ConfigException&)
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{
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return def;
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}
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}
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void Config::visitStrings(std::string_view setting, std::function<void(std::string_view)> _func, std::initializer_list<std::string_view> defs)
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{
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try
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{
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const libconfig::Setting& values{ _config.lookup(std::string{ setting }) };
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for (int i{}; i < values.getLength(); ++i)
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_func(static_cast<const char*>(values[i]));
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}
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catch (const libconfig::SettingNotFoundException&)
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{
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for (std::string_view def : defs)
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_func(def);
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}
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catch (libconfig::ConfigException&)
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{
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}
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}
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std::filesystem::path Config::getPath(std::string_view setting, const std::filesystem::path& path)
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{
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try
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{
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const char* res{ _config.lookup(std::string{ setting }) };
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return std::filesystem::path{ std::string(res) };
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}
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catch (libconfig::ConfigException&)
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{
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return path;
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}
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}
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unsigned long Config::getULong(std::string_view setting, unsigned long def)
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{
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try
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{
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return static_cast<unsigned int>(_config.lookup(std::string{ setting }));
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}
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catch (libconfig::ConfigException&)
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{
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return def;
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}
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}
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long Config::getLong(std::string_view setting, long def)
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{
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try
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{
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return _config.lookup(std::string{ setting });
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}
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catch (libconfig::ConfigException&)
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{
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return def;
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}
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}
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bool Config::getBool(std::string_view setting, bool def)
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{
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try
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{
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return _config.lookup(std::string{ setting });
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}
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catch (libconfig::ConfigException&)
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{
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return def;
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}
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}
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} // namespace lms::core
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