fc::optional<fc::logging_config> load_logging_config_from_ini_file(const fc::path& config_ini_filename)
{
try
{
fc::logging_config logging_config;
bool found_logging_config = false;
boost::property_tree::ptree config_ini_tree;
boost::property_tree::ini_parser::read_ini(config_ini_filename.preferred_string().c_str(), config_ini_tree);
for (const auto& section : config_ini_tree)
{
const std::string& section_name = section.first;
const boost::property_tree::ptree& section_tree = section.second;
const std::string console_appender_section_prefix = "log.console_appender.";
const std::string file_appender_section_prefix = "log.file_appender.";
const std::string logger_section_prefix = "logger.";
if (boost::starts_with(section_name, console_appender_section_prefix))
{
std::string console_appender_name = section_name.substr(console_appender_section_prefix.length());
std::string stream_name = section_tree.get<std::string>("stream");
// construct a default console appender config here
// stdout/stderr will be taken from ini file, everything else hard-coded here
fc::console_appender::config console_appender_config;
console_appender_config.level_colors.emplace_back(
fc::console_appender::level_color(fc::log_level::debug,
fc::console_appender::color::green));
console_appender_config.level_colors.emplace_back(
fc::console_appender::level_color(fc::log_level::warn,
fc::console_appender::color::brown));
console_appender_config.level_colors.emplace_back(
fc::console_appender::level_color(fc::log_level::error,
fc::console_appender::color::cyan));
console_appender_config.stream = fc::variant(stream_name).as<fc::console_appender::stream::type>();
logging_config.appenders.push_back(fc::appender_config(console_appender_name, "console", fc::variant(console_appender_config)));
found_logging_config = true;
}
else if (boost::starts_with(section_name, file_appender_section_prefix))
{
std::string file_appender_name = section_name.substr(file_appender_section_prefix.length());
fc::path file_name = section_tree.get<std::string>("filename");
if (file_name.is_relative())
file_name = fc::absolute(config_ini_filename).parent_path() / file_name;
// construct a default file appender config here
// filename will be taken from ini file, everything else hard-coded here
fc::file_appender::config file_appender_config;
file_appender_config.filename = file_name;
file_appender_config.flush = true;
file_appender_config.rotate = true;
file_appender_config.rotation_interval = fc::hours(1);
file_appender_config.rotation_limit = fc::days(1);
logging_config.appenders.push_back(fc::appender_config(file_appender_name, "file", fc::variant(file_appender_config)));
found_logging_config = true;
}
else if (boost::starts_with(section_name, logger_section_prefix))
{
std::string logger_name = section_name.substr(logger_section_prefix.length());
std::string level_string = section_tree.get<std::string>("level");
std::string appenders_string = section_tree.get<std::string>("appenders");
fc::logger_config logger_config(logger_name);
logger_config.level = fc::variant(level_string).as<fc::log_level>();
boost::split(logger_config.appenders, appenders_string,
boost::is_any_of(" ,"),
boost::token_compress_on);
logging_config.loggers.push_back(logger_config);
found_logging_config = true;
}
}
if (found_logging_config)
return logging_config;
else
return fc::optional<fc::logging_config>();
}
FC_RETHROW_EXCEPTIONS(warn, "")
}
