func()

in pkg/cmd/apiresources/apiresources.go [142:242]

• 88 lines of code
• 27 McCabe index (conditional complexity)

func (o *APIResourceOptions) RunAPIResources(cmd *cobra.Command, f cmdutil.Factory) error {
	w := printers.GetNewTabWriter(o.Out)
	defer w.Flush()

	discoveryclient, err := f.ToDiscoveryClient()
	if err != nil {
		return err
	}

	if !o.Cached {
		// Always request fresh data from the server
		discoveryclient.Invalidate()
	}

	errs := []error{}
	lists, err := discoveryclient.ServerPreferredResources()
	if err != nil {
		errs = append(errs, err)
	}

	resources := []groupResource{}

	groupChanged := cmd.Flags().Changed("api-group")
	nsChanged := cmd.Flags().Changed("namespaced")

	for _, list := range lists {
		if len(list.APIResources) == 0 {
			continue
		}
		gv, err := schema.ParseGroupVersion(list.GroupVersion)
		if err != nil {
			continue
		}
		for _, resource := range list.APIResources {
			if len(resource.Verbs) == 0 {
				continue
			}
			// filter apiGroup
			if groupChanged && o.APIGroup != gv.Group {
				continue
			}
			// filter namespaced
			if nsChanged && o.Namespaced != resource.Namespaced {
				continue
			}
			// filter to resources that support the specified verbs
			if len(o.Verbs) > 0 && !sets.NewString(resource.Verbs...).HasAll(o.Verbs...) {
				continue
			}
			resources = append(resources, groupResource{
				APIGroup:        gv.Group,
				APIGroupVersion: gv.String(),
				APIResource:     resource,
			})
		}
	}

	if o.NoHeaders == false && o.Output != "name" {
		if err = printContextHeaders(w, o.Output); err != nil {
			return err
		}
	}

	sort.Stable(sortableResource{resources, o.SortBy})
	for _, r := range resources {
		switch o.Output {
		case "name":
			name := r.APIResource.Name
			if len(r.APIGroup) > 0 {
				name += "." + r.APIGroup
			}
			if _, err := fmt.Fprintf(w, "%s\n", name); err != nil {
				errs = append(errs, err)
			}
		case "wide":
			if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%v\t%s\t%v\n",
				r.APIResource.Name,
				strings.Join(r.APIResource.ShortNames, ","),
				r.APIGroupVersion,
				r.APIResource.Namespaced,
				r.APIResource.Kind,
				r.APIResource.Verbs); err != nil {
				errs = append(errs, err)
			}
		case "":
			if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%v\t%s\n",
				r.APIResource.Name,
				strings.Join(r.APIResource.ShortNames, ","),
				r.APIGroupVersion,
				r.APIResource.Namespaced,
				r.APIResource.Kind); err != nil {
				errs = append(errs, err)
			}
		}
	}

	if len(errs) > 0 {
		return errors.NewAggregate(errs)
	}
	return nil
}