func()

in cmd/service_scale.go [20:46]

• 24 lines of code
• 9 McCabe index (conditional complexity)

func (o *ScaleServiceOperation) SetScale(scaleExpression string) {
	ecs := ECS.New(sess, clusterName)
	validScale := regexp.MustCompile(validScalePattern)

	if !validScale.MatchString(scaleExpression) {
		console.ErrorExit(fmt.Errorf("Invalid scale expression %s", scaleExpression), "Invalid command line argument")
	}

	if scaleExpression[0] == '+' || scaleExpression[0] == '-' {
		if s, err := strconv.ParseInt(scaleExpression[1:len(scaleExpression)], 10, 64); err == nil {
			currentDesiredCount := ecs.GetDesiredCount(o.ServiceName)
			if scaleExpression[0] == '+' {
				o.DesiredCount = currentDesiredCount + s
			} else if scaleExpression[0] == '-' {
				o.DesiredCount = currentDesiredCount - s
			}
		}
	} else if s, err := strconv.ParseInt(scaleExpression, 10, 64); err == nil {
		o.DesiredCount = s
	} else {
		console.ErrorExit(fmt.Errorf("Invalid scale expression %s", scaleExpression), "Invalid command line argument")
	}

	if o.DesiredCount < 0 {
		console.ErrorExit(fmt.Errorf("requested scale %d < 0", o.DesiredCount), "Invalid command line argument")
	}
}