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