Parsing documents from a manifest

parse.go

func ParseSearchConstruct(resources []*restmapper.APIGroupResources, dynamicClient dynamic.Interface, doc string) (*Resource, error) {
	unstruct, gvk, err := decode(doc)
	if err != nil {
		return nil, err
	}

	ns, nsFound, err := search(unstruct, "metadata", "namespace")
	if err != nil {
		return nil, err
	}

	kind, kindFound, err := search(unstruct, "kind")
	if err != nil {
		return nil, err
	}

	// Not all resources will have or work with a namespace.
	if !nsFound || (kindFound && (kind.(string) == "CustomResourceDefinition" || kind.(string) == "ClusterRole" || kind.(string) == "ClusterRoleBinding")) {
		ns = ""
	}

	name, found, err := search(unstruct, "metadata", "name")
	if err != nil {
		return nil, err
	}

	if !found {
		return nil, errors.New("Failed to find name field")
	}

	mapping, err := restMapping(resources, gvk)
	if err != nil {
		return nil, err
	}

	// If the namespace returned to us is empty then the action call will work in a non-namespaced context.
	// Think of resources that are cluster-wide and not namespace specific.
	return &Resource{
		Action:   dynamicClient.Resource(mapping.Resource).Namespace(ns.(string)),
		Mapping:  mapping,
		Ns:       ns.(string),
		Name:     name.(string),
		Unstruct: unstruct,
	}, nil
}