func main()

in tools/scaler/scaler.go [93:125]

• 29 lines of code
• 2 McCabe index (conditional complexity)

func main() {

	app := kingpin.New(filepath.Base(os.Args[0]), "The Prombench-Scaler tool")
	app.HelpFlag.Short('h')

	s := newScaler()

	k8sApp := app.Command("scale", "Scale a Kubernetes deployment object periodically up and down. \nex: ./scaler scale -v NAMESPACE:scale -f fake-webserver.yaml 20 1 15m").
		Action(s.k8sClient.DeploymentsParse).
		Action(s.scale)
	k8sApp.Flag("file", "yaml file or folder that describes the parameters for the deployment.").
		Required().
		Short('f').
		ExistingFilesOrDirsVar(&s.k8sClient.DeploymentFiles)
	k8sApp.Flag("vars", "When provided it will substitute the token holders in the yaml file. Follows the standard golang template formating - {{ .hashStable }}.").
		Short('v').
		StringMapVar(&s.k8sClient.DeploymentVars)
	k8sApp.Arg("max", "Number of Replicas to scale up.").
		Required().
		Int32Var(&s.max)
	k8sApp.Arg("min", "Number of Replicas to scale down.").
		Required().
		Int32Var(&s.min)
	k8sApp.Arg("interval", "Time to wait before changing the number of replicas.").
		Required().
		DurationVar(&s.interval)

	if _, err := app.Parse(os.Args[1:]); err != nil {
		fmt.Fprintln(os.Stderr, errors.Wrapf(err, "Error parsing commandline arguments"))
		app.Usage(os.Args[1:])
		os.Exit(2)
	}
}