Simple static server in go

main.go

package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
)

func printRecovery() {
	if r := recover(); r != nil {
		log.Fatalln(fmt.Sprintf("ERROR: %+v", r))
	}
}

func main() {
	defer printRecovery()

	if len(os.Args) < 2 {
		panic("Require first command-line argument to be port")
	}

	portStr := os.Args[1]
	log.Println(fmt.Sprintf("Listening on %s...", portStr))

	panic(http.ListenAndServe(":"+portStr, http.FileServer(http.Dir("."))))
}