log-cli.hh

/*
 * This file is open source software, licensed to you under the terms
 * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership.  You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/*
 * Copyright (C) 2017 ScyllaDB
 */
 
#pragma once
 
#ifndef SEASTAR_MODULE
#include <boost/program_options.hpp>
 
#include <algorithm>
#include <unordered_map>
#endif
 
#include <seastar/util/log.hh>
#include <seastar/util/program-options.hh>
 
#include <seastar/core/sstring.hh>
 
 
namespace seastar {
 
namespace log_cli {
 
boost::program_options::options_description get_options_description();
 
using log_level_map = std::unordered_map<sstring, log_level>;
 
struct options : public program_options::option_group {
    program_options::value<log_level> default_log_level;
    program_options::value<log_level_map> logger_log_level;
    program_options::value<logger_timestamp_style> logger_stdout_timestamps;
    program_options::value<bool> log_to_stdout;
    program_options::value<seastar::logger_ostream_type> logger_ostream_type;
    program_options::value<bool> log_to_syslog;
 
    program_options::value<bool> log_with_color;
    options(program_options::option_group* parent_group);
};
 
void print_available_loggers(std::ostream& os);
 
log_level parse_log_level(const sstring&);
 
void parse_map_associations(const std::string& v, std::function<void(std::string, std::string)> consume_key_value);
 
//
// \brief Parse associations from loggers to log-levels and write the resulting pairs to the output iterator.
//
// \throws \c std::runtime_error for an invalid log-level.
//
template <class OutputIter>
void parse_logger_levels(const program_options::string_map& levels, OutputIter out) {
    std::for_each(levels.begin(), levels.end(), [&out](auto&& pair) {
        *out++ = std::make_pair(pair.first, parse_log_level(pair.second));
    });
}
 
//
logging_settings extract_settings(const boost::program_options::variables_map&);
 
logging_settings extract_settings(const options&);
 
}
 
}