func()

in pkg/cli/flags.go [20:50]

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

func (cl *CommandLineInterface) RatioFlag(name string, shorthand *string, defaultValue *string, description string) error {
	if defaultValue == nil {
		cl.nilDefaults[name] = true
		defaultValue = cl.StringMe("")
	}
	if shorthand != nil {
		cl.Flags[name] = cl.Command.Flags().StringP(name, string(*shorthand), *defaultValue, description)
	} else {
		cl.Flags[name] = cl.Command.Flags().String(name, *defaultValue, description)
	}

	cl.validators[name] = func(val interface{}) error {
		if val == nil {
			return nil
		}
		vcpuToMemRatioVal := *val.(*string)
		valid, err := regexp.Match(`^[0-9]+:[0-9]+$`, []byte(vcpuToMemRatioVal))
		if err != nil || !valid {
			return fmt.Errorf("Invalid input for --%s. A valid example is 1:2", name)
		}
		vals := strings.Split(vcpuToMemRatioVal, ":")
		vcpusRatioVal, err1 := strconv.Atoi(vals[0])
		memRatioVal, err2 := strconv.Atoi(vals[1])
		if err1 != nil || err2 != nil {
			return fmt.Errorf("Invalid input for --%s. Ratio values must be integers. A valid example is 1:2", name)
		}
		cl.Flags[name] = cl.Float64Me(float64(memRatioVal) / float64(vcpusRatioVal))
		return nil
	}
	return nil
}