Function parseCapacity

lib/machine/machine.go:269–281

parseCapacity matches a Regexp in a []byte, returning the resulting value in bytes. Assumes that the value matched by the Regexp is in KB.

(b []byte, r *regexp.Regexp)

// parseCapacity matches a Regexp in a []byte, returning the resulting value in bytes.
// Assumes that the value matched by the Regexp is in KB.
func parseCapacity(b []byte, r *regexp.Regexp) (uint64, error) {
	matches := r.FindSubmatch(b)
	if len(matches) != 2 {
		return 0, fmt.Errorf("failed to match regexp in output: %q", string(b))
	}
	m, err := strconv.ParseUint(string(matches[1]), 10, 64)
	if err != nil {
		return 0, err
	}

	// Convert to bytes.
	return m * 1024, err
}

// getUniqueMatchesCount returns number of unique matches in given argument using provided regular expression
func getUniqueMatchesCount(s string, r *regexp.Regexp) int {