Logger factory: make it possible to specify the logging level

Change-Id: Ic6f4a82eede242c9249fb502bf567e9539eca8b0
Reviewed-on: https://codereview.kdab.com/c/kdab/kdutils/+/136365
Tested-by: Continuous Integration <[email protected]>
Reviewed-by: Mike Krus <[email protected]>
Reviewed-by: Sean Harmer <[email protected]>

src/KDUtils/logging.cpp

@@ -16,13 +16,13 @@ namespace KDUtils {
 
 Logger::LoggerFactoryFunction Logger::ms_loggerFactory = {};
 
-std::shared_ptr<spdlog::logger> Logger::logger(const std::string &name)
+std::shared_ptr<spdlog::logger> Logger::logger(const std::string &name, spdlog::level::level_enum defaultLevel)
 {
     std::shared_ptr<spdlog::logger> logger;
     if (ms_loggerFactory) {
         // Use the factory set by the application which should check
         // its own spdlog registry first before creating a new logger.
-        logger = ms_loggerFactory(name);
+        logger = ms_loggerFactory(name, defaultLevel);
     } else {
         // No factory set, use the spdlog registry from KDUtils
         logger = spdlog::get(name);
@@ -32,6 +32,7 @@ std::shared_ptr<spdlog::logger> Logger::logger(const std::string &name)
 #else
             logger = spdlog::stdout_color_mt(name);
 #endif
+            logger->set_level(defaultLevel);
         }
     }
     return logger;

src/KDUtils/logging.h

@@ -22,9 +22,9 @@ namespace KDUtils {
 class KDUTILS_EXPORT Logger
 {
 public:
-    static std::shared_ptr<spdlog::logger> logger(const std::string &name);
+    static std::shared_ptr<spdlog::logger> logger(const std::string &name, spdlog::level::level_enum defaultLevel = spdlog::level::warn);
 
-    using LoggerFactoryFunction = std::function<std::shared_ptr<spdlog::logger>(const std::string &)>;
+    using LoggerFactoryFunction = std::function<std::shared_ptr<spdlog::logger>(const std::string &, spdlog::level::level_enum)>;
 
     static void setLoggerFactory(const LoggerFactoryFunction &factory);
     static LoggerFactoryFunction loggerFactory();