feat: update InitLogger

env/init.go

@@ -9,5 +9,10 @@ func Init() error {
 	if err := godotenv.Load(); err != nil {
 		return err
 	}
-	return InitLogger()
+	lvl, err := getLogLevelOrdefault()
+	if err != nil {
+		return err
+	}
+	InitLogger(lvl)
+	return nil
 }

env/log.go

@@ -15,26 +15,33 @@ const (
 )
 
 // InitLogger setups zerolog global logger
-func InitLogger() error {
-	lvl, err := getLogLevel()
-	if err != nil {
-		return err
-	}
-
+func InitLogger(lvl zerolog.Level) {
 	zerolog.SetGlobalLevel(lvl)
 	zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack
 	log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
-	return nil
 }
 
+// reads log level from env. Returns NoLevel if not specified.
 func getLogLevel() (zerolog.Level, error) {
 	logLevelStr := os.Getenv(EnvLogLevel)
 	if logLevelStr == "" {
-		return zerolog.WarnLevel, nil
+		return zerolog.NoLevel, nil
 	}
 	lvl, err := zerolog.ParseLevel(logLevelStr)
 	if err != nil {
 		return lvl, fmt.Errorf("invalid LOG_LEVEL %q; %w", lvl, err)
 	}
 	return lvl, nil
 }
+
+// reads log level from env or returns a default if not specified.
+func getLogLevelOrdefault() (zerolog.Level, error) {
+	lvl, err := getLogLevel()
+	if err != nil {
+		return lvl, err
+	}
+	if lvl == zerolog.NoLevel {
+		lvl = zerolog.WarnLevel
+	}
+	return lvl, nil
+}