package main

import (
	"flag"
	"log"
)

var _days = flag.Int("days", 0, "number of days in the future")

func main() {
	flag.Parse()

	for calName, classList := range classes {
		err := updateCalendar(calName, classList, *_days)
		if err != nil {
			log.Fatal(err)
		}
	}
}