A web server for a single directory with content sniffing

httpd.go

import (
	"flag"
	"log"

	"net/http"
)

var addr = flag.String("-h", ":8080", "host:port")
var dir = flag.String("-d", ".", "directory to serve")

func main() {
	flag.Parse()

	http.Handle("/", http.FileServer(http.Dir(*dir)))
	log.Fatal(http.ListenAndServe(*addr, nil))
}