add logging

src/CMakeLists.txt

@@ -15,4 +15,4 @@ FetchContent_Declare(
 )
 FetchContent_MakeAvailable(Boost)
 
-target_link_libraries(cppScratch PRIVATE nlohmann_json::nlohmann_json Boost::program_options dal library)
+target_link_libraries(cppScratch PRIVATE nlohmann_json::nlohmann_json Boost::program_options Boost::log Boost::date_time Boost::filesystem Boost::system Boost::thread Boost::log_setup Boost::chrono Boost::atomic dal library)

src/main.cpp

@@ -7,15 +7,49 @@
 #include <nlohmann/json.hpp>
 #include <boost/program_options.hpp>
 
+#include <boost/log/core.hpp>
+#include <boost/log/trivial.hpp>
+#include <boost/log/expressions.hpp>
+#include <boost/log/utility/setup/file.hpp>
+#include <boost/log/utility/setup/common_attributes.hpp>
+
 using namespace std;
 namespace po = boost::program_options;
 
+namespace logging = boost::log;
+namespace src = boost::log::sources;
+namespace sinks = boost::log::sinks;
+namespace keywords = boost::log::keywords;
+
+void init_logging()
+{
+    logging::register_simple_formatter_factory<logging::trivial::severity_level, char>("Severity");
+
+    logging::add_file_log
+    (
+        keywords::file_name = "sample_%N.log",
+        keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0),
+        keywords::format = "[%TimeStamp%] [%ThreadID%] [%Severity%] %Message%"
+    );
+
+    logging::core::get()->set_filter
+    (
+        logging::trivial::severity >= logging::trivial::info
+    );
+
+    logging::add_common_attributes();
+}
+
 void on_age(int age)
 {
   std::cout << "On age: " << age << '\n';
 }
 
 int main(int argc, const char *argv[]) {
+    init_logging();
+
+    BOOST_LOG_TRIVIAL(info) << "log test";
+
     ////////////
     // DECLARE
     ////////////