check.go

package main

import (
	"io/ioutil"
	"log"
	"net/http"
	"os/exec"
	"time"
)

func main() {
	err := exec.Command("growlnotify", "-m", "starting").Run()
	if err != nil {
		log.Fatal(err)
	}
	c := &http.Client{}
	for {
		log.Println("checking")
		res, err := c.Get("http://www.hamiltonthemusical.co.uk")

		if err != nil {
			log.Println(err)
		}

		body, err := ioutil.ReadAll(res.Body)
		res.Body.Close()

		if err != nil {
			log.Println(err)
			continue
		}

		if string(body) != "site" {
			log.Println("huzzah")
			err := exec.Command("growlnotify", "-m", "site is live - probably")
			if err != nil {
				log.Println(err)
			}
		}
		time.Sleep(15 * time.Minute)
	}
}