func ParseFlags()

in cmd/aks-node-viewer/flag.go [54:91]
27 lines of code
3 McCabe index (conditional complexity)

func ParseFlags() (Flags, error) {
	flagSet := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
	var flags Flags

	cfg, err := loadConfigFile()
	if err != nil {
		return Flags{}, fmt.Errorf("load config file: %w", err)
	}

	flagSet.BoolVar(&flags.Version, "v", false, "Display aks-node-viewer version")
	flagSet.BoolVar(&flags.Version, "version", false, "Display aks-node-viewer version")

	contextDefault := cfg.getValue("context", "")
	flagSet.StringVar(&flags.Context, "context", contextDefault, "Name of the kubernetes context to use")

	nodeSelectorDefault := cfg.getValue("node-selector", "")
	flagSet.StringVar(&flags.NodeSelector, "node-selector", nodeSelectorDefault, "Node label selector used to filter nodes, if empty all nodes are selected ")

	extraLabelsDefault := cfg.getValue("extra-labels", "")
	flagSet.StringVar(&flags.ExtraLabels, "extra-labels", extraLabelsDefault, "A comma separated set of extra node labels to display")

	// flag overrides env. var. and env. var. overrides config file
	kubeconfigDefault := getStringEnv("KUBECONFIG", cfg.getValue("kubeconfig", filepath.Join(homeDir, ".kube", "config")))
	flagSet.StringVar(&flags.Kubeconfig, "kubeconfig", kubeconfigDefault, "Absolute path to the kubeconfig file")

	resourcesDefault := cfg.getValue("resources", "cpu")
	flagSet.StringVar(&flags.Resources, "resources", resourcesDefault, "List of comma separated resources to monitor")

	disablePricingDefault := cfg.getBoolValue("disable-pricing", false)
	flagSet.BoolVar(&flags.DisablePricing, "disable-pricing", disablePricingDefault, "Disable pricing lookups")

	flagSet.BoolVar(&flags.ShowAttribution, "attribution", false, "Show the Open Source Attribution")

	if err := flagSet.Parse(os.Args[1:]); err != nil {
		return Flags{}, err
	}
	return flags, nil
}