func refreshDuration()

in internal/cloudsql/instance.go [341:353]

• 10 lines of code
• 3 McCabe index (conditional complexity)

func refreshDuration(now, certExpiry time.Time) time.Duration {
	d := certExpiry.Sub(now.Round(0))
	if d < time.Hour {
		// Something is wrong with the certificate, refresh now.
		if d < refreshBuffer {
			return 0
		}
		// Otherwise wait until 4 minutes before expiration for next
		// refresh cycle.
		return d - refreshBuffer
	}
	return d / 2
}