Logger.cpp

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//=======================================================================================
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//       \    \ |    |  |  ______________________________________________________________|
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//         \         |  |  |_____   |  |        |  |   |  |   |  |   |   _  \    /  _____)
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//
//  This file is part of VirtualFluids. VirtualFluids is free software: you can
//  redistribute it and/or modify it under the terms of the GNU General Public
//  License as published by the Free Software Foundation, either version 3 of
//  the License, or (at your option) any later version.
//
//  VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
//  for more details.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
//
//=======================================================================================
#include "Logger.h"
 
#include <spdlog/sinks/basic_file_sink.h>
#include <spdlog/sinks/daily_file_sink.h>
#include <spdlog/sinks/stdout_color_sinks.h>
#include <spdlog/spdlog.h>
 
namespace vf::logging
{
 
std::string Logger::logPath = { "logs/" };
 
void Logger::initializeLogger()
{
    updateDefaultLogger();
 
    // setting default log level to trace
    // levels: trace < debug < info < warn < error < critical
    spdlog::set_level(spdlog::level::trace);
 
    // setting the log pattern
    // formatting is documented here: https://github.com/gabime/spdlog/wiki/3.-Custom-formatting
    spdlog::set_pattern("[%Y-%m-%d %H:%M:%S.%e] [%^%l%$] %v");
 
    // according to the flush policy https://github.com/gabime/spdlog/wiki/7.-Flush-policy
    spdlog::flush_on(spdlog::level::info);
}
 
void Logger::changeLogPath(std::string path)
{
    if(path.back() != '/')
        path.append("/");
 
    logPath = path;
 
    updateDefaultLogger();
}
 
void Logger::updateDefaultLogger()
{
    // initialize stdout sink with colored output
    auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
 
    // initialize daily file sink
    // files will be written into "logs" folder relative to pwd. A new files is created at 0:00 o'clock.
    auto daily_file_sink = std::make_shared<spdlog::sinks::daily_file_sink_mt>(logPath + "daily.txt", 0, 0);
 
    // initialize last run file sink
    auto last_run_file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>(logPath + "last_run.txt", true);
 
    // creating default logger with console and file sink
    spdlog::set_default_logger(std::make_shared<spdlog::logger>(
        "default", spdlog::sinks_init_list({ console_sink, daily_file_sink, last_run_file_sink })));
}
 
} // namespace vf::logging