Function parseScheduleAtFlag

cmd/databases.go:299–335

(flag string)

)

func parseScheduleAtFlag(flag string) (int, *time.Location, error) {
	scheduleAtHour, err := strconv.Atoi(flag)
	if err == nil {
		// In this case, the schedule-at flag equals a single number
		return scheduleAtHour, time.Local, nil
	}

	validationError := errors.NewValidationErrorsBuilder()

	// From now on the schedule-at flag is a number and a timezone such as
	// "3 Europe/Paris"
	s := strings.Split(flag, " ")
	if len(s) < 2 {
		validationError = validationError.Set("schedule-at", "only contains two space-separated fields")
		return -1, nil, validationError.Build()
	}
	scheduleAtTime := s[0]
	scheduleAtTimezone := s[1]

	// If client writes "4:00" or "4h00", we only want to keep "4" in scheduleAtTime
	re := regexp.MustCompile(`([:hH].*)|[0]+`)
	scheduleAtTime = re.ReplaceAllString(scheduleAtTime, "")

	scheduleAtHour, err = strconv.Atoi(scheduleAtTime)
	if err != nil {
		validationError = validationError.Set("schedule-at", "first field must be a digit representing the hour")
		return -1, nil, validationError.Build()
	}

	loc, err := time.LoadLocation(scheduleAtTimezone)
	if err != nil {
		validationError = validationError.Set("schedule-at", "unknown timezone"+s[1])
		return -1, nil, validationError.Build()
	}

	return scheduleAtHour, loc, nil
}