diff options
Diffstat (limited to 'louloulibs/config/config.cpp')
m--------- | louloulibs | 0 | ||||
-rw-r--r-- | louloulibs/config/config.cpp | 122 |
2 files changed, 122 insertions, 0 deletions
diff --git a/louloulibs b/louloulibs deleted file mode 160000 -Subproject 0f3c1183e2bf0941ae2bffd3f31577bce4f3001 diff --git a/louloulibs/config/config.cpp b/louloulibs/config/config.cpp new file mode 100644 index 0000000..3e016f4 --- /dev/null +++ b/louloulibs/config/config.cpp @@ -0,0 +1,122 @@ +#include <config/config.hpp> + +#include <iostream> +#include <sstream> + +#include <stdlib.h> + +std::string Config::filename{}; +bool Config::file_must_exist = false; + +std::string Config::get(const std::string& option, const std::string& def) +{ + Config* self = Config::instance().get(); + auto it = self->values.find(option); + + if (it == self->values.end()) + return def; + return it->second; +} + +int Config::get_int(const std::string& option, const int& def) +{ + Config* self = Config::instance().get(); + std::string res = self->get(option, ""); + if (!res.empty()) + return atoi(res.c_str()); + else + return def; +} + +void Config::set(const std::string& option, const std::string& value, bool save) +{ + Config* self = Config::instance().get(); + self->values[option] = value; + if (save) + { + self->save_to_file(); + self->trigger_configuration_change(); + } +} + +void Config::connect(t_config_changed_callback callback) +{ + Config* self = Config::instance().get(); + self->callbacks.push_back(callback); +} + +void Config::close() +{ + Config* self = Config::instance().get(); + self->values.clear(); + Config::instance().reset(); +} + +/** + * Private methods + */ + +void Config::trigger_configuration_change() +{ + std::vector<t_config_changed_callback>::iterator it; + for (it = this->callbacks.begin(); it < this->callbacks.end(); ++it) + (*it)(); +} + +std::unique_ptr<Config>& Config::instance() +{ + static std::unique_ptr<Config> instance; + + if (!instance) + { + instance = std::make_unique<Config>(); + instance->read_conf(); + } + return instance; +} + +bool Config::read_conf() +{ + std::ifstream file; + file.open(filename.data()); + if (!file.is_open()) + { + if (Config::file_must_exist) + { + perror(("Error while opening file " + filename + " for reading.").c_str()); + file.exceptions(std::ifstream::failbit); + } + return false; + } + + std::string line; + size_t pos; + std::string option; + std::string value; + while (file.good()) + { + std::getline(file, line); + if (line == "" || line[0] == '#') + continue ; + pos = line.find('='); + if (pos == std::string::npos) + continue ; + option = line.substr(0, pos); + value = line.substr(pos+1); + this->values[option] = value; + } + return true; +} + +void Config::save_to_file() const +{ + std::ofstream file(this->filename.data()); + if (file.fail()) + { + std::cerr << "Could not save config file." << std::endl; + return ; + } + for (auto& it: this->values) + file << it.first << "=" << it.second << std::endl; + file.close(); +} |