easy http server

server.go

package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
	"os/exec"
	"path/filepath"
	"runtime"
)

// https://gist.github.com/hyg/9c4afcd91fe24316cbf0
func openbrowser(url string) {
	var err error

	switch runtime.GOOS {
	case "linux":
		err = exec.Command("xdg-open", url).Start()
	case "windows":
		err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
	case "darwin":
		err = exec.Command("open", url).Start()
	default:
		err = fmt.Errorf("unsupported platform")
	}
	if err != nil {
		log.Fatal(err)
	}
}

func main() {
	// Get directory path
	ex, err := os.Executable()
	if err != nil {
		panic(err)
	}
	dir, err := filepath.Abs(filepath.Dir(ex))
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(dir)

	done := make(chan bool)

	// Launch HTTP server
	fs := http.FileServer(http.Dir(dir))
	http.Handle("/", fs)
	go http.ListenAndServe(":80", nil)

	fmt.Println("gonna open")

	// Open index.html in browser
	openbrowser("http://localhost/index.html")

	// Await web server close
	<-done
}