Simple Static File Server in Go

serve.go

/*
Serve is a very simple static file server in go
Usage:

	-p="8100": port to serve on
	-d=".":    the directory of static files to host
	-b="/":    the base URL to host

Navigating to http://localhost:8100 will display the index.html or directory
listing file.
*/
package main

import (
	"flag"
	"log"
	"net/http"
	"path/filepath"
	"time"
)

var (
	path     = flag.String("d", ".", "path to the folder to serve. Defaults to the current folder")
	port     = flag.String("p", "8080", "port to serve on. Defaults to 8080")
	basePath = flag.String("b", "/", "base url to serve on. Defaults to /")
)

func main() {
	flag.Parse()

	dirname, err := filepath.Abs(*path)
	if err != nil {
		log.Fatalf("Could not get absolute path to directory: %s: %s", dirname, err.Error())
	}

	log.Printf("Serving %s on port %s on url: %s", dirname, *port, *basePath)

	fs := http.FileServer(http.Dir(dirname))
	http.Handle(*basePath, http.StripPrefix(*basePath, fs))
	srv := http.Server{
		Addr:              ":" + *port,
		ReadTimeout:       1 * time.Second,
		WriteTimeout:      1 * time.Second,
		IdleTimeout:       30 * time.Second,
		ReadHeaderTimeout: 2 * time.Second,
	}

	err = srv.ListenAndServe()
	if err != nil {
		log.Fatalf("Could not serve directory: %s: %s", dirname, err.Error())
	}
}