123 lines
2.6 KiB
C++
123 lines
2.6 KiB
C++
#include <config/config.hpp>
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#include <iostream>
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#include <sstream>
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#include <stdlib.h>
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std::string Config::filename = "./biboumi.cfg";
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bool Config::file_must_exist = false;
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std::string Config::get(const std::string& option, const std::string& def)
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{
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Config* self = Config::instance().get();
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auto it = self->values.find(option);
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if (it == self->values.end())
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return def;
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return it->second;
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}
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int Config::get_int(const std::string& option, const int& def)
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{
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Config* self = Config::instance().get();
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std::string res = self->get(option, "");
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if (!res.empty())
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return atoi(res.c_str());
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else
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return def;
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}
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void Config::set(const std::string& option, const std::string& value, bool save)
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{
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Config* self = Config::instance().get();
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self->values[option] = value;
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if (save)
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{
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self->save_to_file();
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self->trigger_configuration_change();
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}
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}
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void Config::connect(t_config_changed_callback callback)
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{
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Config* self = Config::instance().get();
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self->callbacks.push_back(callback);
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}
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void Config::close()
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{
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Config* self = Config::instance().get();
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self->values.clear();
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Config::instance().reset();
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}
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/**
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* Private methods
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*/
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void Config::trigger_configuration_change()
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{
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std::vector<t_config_changed_callback>::iterator it;
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for (it = this->callbacks.begin(); it < this->callbacks.end(); ++it)
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(*it)();
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}
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std::unique_ptr<Config>& Config::instance()
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{
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static std::unique_ptr<Config> instance;
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if (!instance)
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{
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instance = std::make_unique<Config>();
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instance->read_conf();
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}
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return instance;
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}
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bool Config::read_conf()
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{
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std::ifstream file;
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file.open(filename.data());
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if (!file.is_open())
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{
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if (Config::file_must_exist)
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{
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perror(("Error while opening file " + filename + " for reading.").c_str());
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file.exceptions(std::ifstream::failbit);
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}
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return false;
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}
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std::string line;
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size_t pos;
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std::string option;
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std::string value;
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while (file.good())
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{
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std::getline(file, line);
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if (line == "" || line[0] == '#')
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continue ;
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pos = line.find('=');
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if (pos == std::string::npos)
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continue ;
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option = line.substr(0, pos);
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value = line.substr(pos+1);
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this->values[option] = value;
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}
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return true;
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}
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void Config::save_to_file() const
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{
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std::ofstream file(this->filename.data());
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if (file.fail())
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{
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std::cerr << "Could not save config file." << std::endl;
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return ;
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}
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for (auto& it: this->values)
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file << it.first << "=" << it.second << std::endl;
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file.close();
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}
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