| /* |
| Copyright 2017 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package rbac |
| |
| import ( |
| "reflect" |
| |
| "k8s.io/apimachinery/pkg/api/meta" |
| "k8s.io/apimachinery/pkg/conversion" |
| "k8s.io/apimachinery/pkg/runtime" |
| ) |
| |
| // IsOnlyMutatingGCFields checks finalizers and ownerrefs which GC manipulates |
| // and indicates that only those fields are changing |
| func IsOnlyMutatingGCFields(obj, old runtime.Object, equalities conversion.Equalities) bool { |
| if old == nil || reflect.ValueOf(old).IsNil() { |
| return false |
| } |
| |
| // make a copy of the newObj so that we can stomp for comparison |
| copied := obj.DeepCopyObject() |
| copiedMeta, err := meta.Accessor(copied) |
| if err != nil { |
| return false |
| } |
| oldMeta, err := meta.Accessor(old) |
| if err != nil { |
| return false |
| } |
| copiedMeta.SetOwnerReferences(oldMeta.GetOwnerReferences()) |
| copiedMeta.SetFinalizers(oldMeta.GetFinalizers()) |
| copiedMeta.SetSelfLink(oldMeta.GetSelfLink()) |
| |
| return equalities.DeepEqual(copied, old) |
| } |