package main

import (
	"fmt"
	"os"
	"os/exec"
	"os/signal"
	"time"
)

func main() {
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)
	file, err := os.OpenFile("out", os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
	if err != nil {
		panic(err)
	}
	file.WriteString("start: " + os.Args[1] + "\n")
	for {
		select {
		case <-c:
			file.WriteString("bye\n")
			exe, _ := os.Executable()
			cmd := exec.Command(exe, os.Args[1:]...)
			err := cmd.Start()
			if err != nil {
				fmt.Println(err)
			}
			os.Exit(0)
		case <-time.Tick(time.Second):
			file.WriteString("test\n")
		}
	}
}