func()

in pkg/cli/flags.go [234:272]

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

func (cl *CommandLineInterface) ByteQuantityFlagOnFlagSet(flagSet *pflag.FlagSet, name string, shorthand *string, defaultValue *bytequantity.ByteQuantity, description string) {
	invalidInputMsg := fmt.Sprintf("Invalid input for --%s. A valid example is 16gb. ", name)
	byteQuantityProcessor := func(val interface{}) error {
		if val == nil {
			return nil
		}
		switch byteQuantityInput := val.(type) {
		case *string:
			bq, err := bytequantity.ParseToByteQuantity(*byteQuantityInput)
			if err != nil {
				return fmt.Errorf(invalidInputMsg+"Can't parse byte quantity %s.", *byteQuantityInput)
			}
			cl.Flags[name] = &bq
		case *bytequantity.ByteQuantity:
			return nil
		default:
			return fmt.Errorf(invalidInputMsg + "Input type is unsupported.")
		}
		return nil
	}
	byteQuantityValidator := func(val interface{}) error {
		if val == nil {
			return nil
		}
		switch val.(type) {
		case *bytequantity.ByteQuantity:
			return nil
		default:
			return fmt.Errorf(invalidInputMsg + "Processing failed.")
		}
	}
	var stringDefaultValue *string
	if defaultValue != nil {
		stringDefaultValue = cl.StringMe(defaultValue.StringGiB())
	} else {
		stringDefaultValue = nil
	}
	cl.StringFlagOnFlagSet(flagSet, name, shorthand, stringDefaultValue, description, byteQuantityProcessor, byteQuantityValidator)
}