func ParseVersion()

in image/parse.go [34:71]

• 36 lines of code
• 8 McCabe index (conditional complexity)

func ParseVersion(versStr string) (ImageVersion, error) {
	var err error
	var major uint64
	var minor uint64
	var rev uint64
	var buildNum uint64
	var ver ImageVersion

	components := strings.SplitN(versStr, ".", 4)
	major, err = strconv.ParseUint(components[0], 10, 8)
	if err != nil {
		return ver, errors.Errorf("invalid version string %s", versStr)
	}
	if len(components) > 1 {
		minor, err = strconv.ParseUint(components[1], 10, 8)
		if err != nil {
			return ver, errors.Errorf("invalid version string %s", versStr)
		}
	}
	if len(components) > 2 {
		rev, err = strconv.ParseUint(components[2], 10, 16)
		if err != nil {
			return ver, errors.Errorf("invalid version string %s", versStr)
		}
	}
	if len(components) > 3 {
		buildNum, err = strconv.ParseUint(components[3], 10, 32)
		if err != nil {
			return ver, errors.Errorf("invalid version string %s", versStr)
		}
	}

	ver.Major = uint8(major)
	ver.Minor = uint8(minor)
	ver.Rev = uint16(rev)
	ver.BuildNum = uint32(buildNum)
	return ver, nil
}