func main()

in main.go [35:56]

• 18 lines of code
• 3 McCabe index (conditional complexity)

func main() {
	listenAddress, ok := os.LookupEnv("ADDR")
	if !ok {
		listenAddress = defaultAddr
	}

	mux := http.NewServeMux()
	mux.HandleFunc("/", http.FileServer(http.Dir(webPublicDir())).ServeHTTP)

	server := &http.Server{
		Addr:              listenAddress,
		ReadHeaderTimeout: 20 * time.Second,
		Handler:           mux,
	}

	log.Println("Listening on ", listenAddress)

	err := server.ListenAndServe()
	if err != nil {
		log.Fatal(err)
	}
}