package main

import (
	"crypto/rand"
	"fmt"
	"log"
	"os"
)

// FileExists returns true if a file exists at the path
func fileExists(path string) bool {
	_, err := os.Stat(path)
	if os.IsNotExist(err) {
		return false
	}
	return err == nil
}

// CreateGUID returns a random GUID
func createGUID() string {
	b := make([]byte, 16)
	_, err := rand.Read(b)
	if err != nil {
		log.Fatal(err)
	}
	uuid := fmt.Sprintf("%x-%x-%x-%x-%x",
		b[0:4], b[4:6], b[6:8], b[8:10], b[10:])

	return uuid
}