d0kuhn/mqtt2LoRaWAN
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read config under the home directory or /etc/mqtt2LoRaWAN directory. Alternatively, a config file can also be specified via command line.

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Dominik Kuhn 2022-10-04 19:48:45 +01:00
parent 6ef0fdae55
commit a7b057abd1
1 changed files with 21 additions and 5 deletions
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26
main.cpp
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@ -315,8 +315,8 @@ int main(int argc, char *argv[])
boost::program_options::options_description desc_env; boost::program_options::options_description desc_env;
desc_env.add_options() ("path", "the execution path") desc_env.add_options() ("path", "the execution path")
("home", "the home directory of the executing user") ("home", "the home directory of the executing user")
("verbosity", po::value<std::string>()->default_value("INFO"), "set verbosity: DEBUG, INFO, WARN, ERROR, FATAL") ("verbosity", po::value<std::string>()->default_value("INFO"), "set verbosity: DEBUG, INFO, WARN, ERROR, FATAL")
("hostname", boost::program_options::value<std::string>(&hostname)); ("hostname", boost::program_options::value<std::string>(&hostname));
boost::program_options::variables_map vm_env; boost::program_options::variables_map vm_env;
boost::program_options::store(boost::program_options::parse_environment(desc_env, boost::function1<std::string, std::string>(mapper)), vm_env); boost::program_options::store(boost::program_options::parse_environment(desc_env, boost::function1<std::string, std::string>(mapper)), vm_env);
@ -347,7 +347,7 @@ int main(int argc, char *argv[])
("version,v", "print the version number") ("version,v", "print the version number")
("hostname,h", po::value<string>()->default_value("localhost"), "Hostname") ("hostname,h", po::value<string>()->default_value("localhost"), "Hostname")
("port,p", po::value<int>()->default_value(1883), "Port") ("port,p", po::value<int>()->default_value(1883), "Port")
("config,c", po::value<std::string>()->default_value("default.conf"), "configuration file") ("config,c", po::value<std::string>(), "configuration file")
("magic,m", po::value<magic_number>(), "magic value (in NNN-NNN format)") ("magic,m", po::value<magic_number>(), "magic value (in NNN-NNN format)")
("appeui", po::value<appeui>(), "APPEUI") ("appeui", po::value<appeui>(), "APPEUI")
("deveui", po::value<deveui>(), "DEVEUI") ("deveui", po::value<deveui>(), "DEVEUI")
@ -363,8 +363,24 @@ int main(int argc, char *argv[])
po::variables_map variable_map; po::variables_map variable_map;
po::store(po::parse_command_line(argc, argv, command_line_options), variable_map); po::store(po::parse_command_line(argc, argv, command_line_options), variable_map);
po::notify(variable_map); po::notify(variable_map);
auto config_file = variable_map.at("config").as<std::string>(); std::string config_file;
if( variable_map.count("config") ){
config_file = variable_map.at("config").as<std::string>();
}else if( vm_env.count("home") ){
if(std::filesystem::exists( vm_env["home"].as<std::string>() + "/.config/mqtt2LoRaWAN/default.conf" )){
config_file = vm_env["home"].as<std::string>() + "/.config/mqtt2LoRaWAN/default.conf";
}else if(std::filesystem::exists("/etc/mqtt2LoRaWAN/default.conf")){
config_file = "/etc/mqtt2LoRaWAN/default.conf";
}
}else{
if(std::filesystem::exists("/etc/mqtt2LoRaWAN/default.conf")){
config_file = "/etc/mqtt2LoRaWAN/default.conf";
}
}
std::ifstream ifs(config_file.c_str()); std::ifstream ifs(config_file.c_str());
if (!ifs) { if (!ifs) {