feat(logger): allow setting log level dynamically via config

Author: doITmagic

cmd/rag-code-mcp/main.go

@@ -17,7 +17,7 @@ import (
 )
 
 var (
-	Version = "2.1.58"
+	Version = "2.1.59"
 	Commit  = "none"
 	Date    = "24.10.2025"
 )

internal/daemon/run.go

@@ -88,6 +88,12 @@ func Run(rcfg RunConfig) error {
 		logger.InitLoggerFromEnv()
 	}
 
+	// Update the logging level dynamically based on the configuration file
+	if cfg.Logging.Level != "" {
+		logger.Instance.SetLevel(cfg.Logging.Level)
+		logger.Instance.Debug("Logger level set dynamically from config to: %s", cfg.Logging.Level)
+	}
+
 	// ── Health Checks ──
 	if cfg.HealthCheck.EnableOnStartup {
 		models := []string{cfg.LLM.OllamaEmbed}

internal/logger/logger.go

@@ -71,6 +71,20 @@ func (l *SimpleLogger) Debug(format string, args ...interface{}) {
 	}
 }
 
+// SetLevel dynamically updates the logging level based on string input (e.g. from config).
+func (l *SimpleLogger) SetLevel(level string) {
+	switch strings.ToLower(level) {
+	case "debug":
+		l.level.Set(slog.LevelDebug)
+	case "warn":
+		l.level.Set(slog.LevelWarn)
+	case "error":
+		l.level.Set(slog.LevelError)
+	default:
+		l.level.Set(slog.LevelInfo)
+	}
+}
+
 // Info logs an informational message.
 func (l *SimpleLogger) Info(format string, args ...interface{}) {
 	if l.level.Level() <= slog.LevelInfo {