Add Fatalf to standard logger-ish

logger/stdlog.go

@@ -34,3 +34,8 @@ func (l stdLoggerish) Println(msg ...interface{}) {
 func (l stdLoggerish) Printf(msg string, args ...interface{}) {
 	l.f(l.key, "msg", fmt.Sprintf(msg, args...))
 }
+
+func (l stdLoggerish) Fatalf(msg string, args ...interface{}) {
+	l.log.Error(l.key, "msg", fmt.Sprintf(msg, args...))
+	panic("fatal error") // todo: does this make sense at all?
+}

tracing/tracing.go

@@ -64,7 +64,6 @@ type TracerConfig struct {
 }
 
 func InitTracer(ctx context.Context, cfg *TracerConfig) (TpShutdownFunc, error) {
-	// todo: setup environment from cfg
 	return SetupSDK(ctx, cfg)
 }
 
@@ -72,6 +71,8 @@ func SetupSDK(ctx context.Context, cfg *TracerConfig) (shutdown TpShutdownFunc,
 
 	log := logger.Setup()
 
+	log.Warn("SetupSDK")
+
 	if serviceName := os.Getenv(svcNameKey); len(serviceName) == 0 {
 		if len(cfg.ServiceName) > 0 {
 			os.Setenv(svcNameKey, cfg.ServiceName)
@@ -199,9 +200,11 @@ func newOLTPExporter(ctx context.Context, cfg *TracerConfig) (otelsdktrace.SpanE
 			opts = append(opts, otlptracegrpc.WithTLSCredentials(credentials.NewTLS(tlsConfig)))
 		}
 		if len(cfg.Endpoint) > 0 {
+			log.Info("adding option", "Endpoint", cfg.Endpoint)
 			opts = append(opts, otlptracegrpc.WithEndpoint(cfg.Endpoint))
 		}
 		if len(cfg.EndpointURL) > 0 {
+			log.Info("adding option", "EndpointURL", cfg.EndpointURL)
 			opts = append(opts, otlptracegrpc.WithEndpointURL(cfg.EndpointURL))
 		}