/
groupversion.go
55 lines (43 loc) · 1.73 KB
/
groupversion.go
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package utls
import (
"fmt"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/discovery"
)
func ParseKubectlResourceStringtoGVK(resource string, restMapper meta.RESTMapper, discClient discovery.CachedDiscoveryInterface) (schema.GroupVersionKind, error) {
var gvk schema.GroupVersionKind
gvr := ParseKubectlResourceStringToGVR(resource)
gvk, err := ConvertGVRtoGVK(gvr, restMapper)
if err != nil {
return gvk, fmt.Errorf("error converting group/version/resource to group/version/kind: %w", err)
}
return gvk, nil
}
func ConvertGVRtoGVK(gvr schema.GroupVersionResource, restMapper meta.RESTMapper) (schema.GroupVersionKind, error) {
var gvk schema.GroupVersionKind
if preferredKinds, err := restMapper.KindsFor(gvr); err != nil {
return gvk, fmt.Errorf("error matching a group/version/resource %q: %w", gvr.String(), err)
} else if len(preferredKinds) == 0 {
return gvk, fmt.Errorf("no matches for group/version/resource %q", gvr.String())
} else {
gvk = preferredKinds[0]
}
return gvk, nil
}
func ConvertGVKtoGVR(gvk schema.GroupVersionKind, mapper meta.RESTMapper) (gvr schema.GroupVersionResource, namespaced bool, err error) {
mapping, err := mapper.RESTMapping(gvk.GroupKind(), gvk.Version)
if err != nil {
return schema.GroupVersionResource{}, false, fmt.Errorf("error getting resource mapping for group/version/kind %q: %w", gvk.String(), err)
}
return mapping.Resource, mapping.Scope == meta.RESTScopeNamespace, nil
}
func ParseKubectlResourceStringToGVR(resource string) schema.GroupVersionResource {
var result schema.GroupVersionResource
if gvr, gr := schema.ParseResourceArg(resource); gvr != nil {
result = *gvr
} else {
result = gr.WithVersion("")
}
return result
}