func main()

in main.go [40:72]

• 27 lines of code
• 5 McCabe index (conditional complexity)

func main() {
	ctx := context.Background()
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}
	log.Printf("listening on port %s", port)
	projectID := os.Getenv("GOOGLE_CLOUD_PROJECT")
	app, err := newApp(ctx, port, projectID)
	if err != nil {
		log.Fatalf("unable to initialize application: %v", err)
	}
	log.Println("starting HTTP server")
	go func() {
		if err := app.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("Server closed: %v", err)
		}
	}()

	// Listen for SIGINT to gracefully shutdown.
	nctx, stop := signal.NotifyContext(ctx, os.Interrupt, os.Kill)
	defer stop()
	<-nctx.Done()
	log.Println("shutdown initiated")

	// Cloud Run gives apps 10 seconds to shutdown. See
	// https://cloud.google.com/blog/topics/developers-practitioners/graceful-shutdowns-cloud-run-deep-dive
	// for more details.
	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
	defer cancel()
	app.Shutdown(ctx)
	log.Println("shutdown")
}