94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
/*
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Copyright 2016 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 util
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import (
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"reflect"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/kubernetes/pkg/api"
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)
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// Copies cluster-independent, user provided data from the given ObjectMeta struct. If in
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// the future the ObjectMeta structure is expanded then any field that is not populated
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// by the api server should be included here.
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func copyObjectMeta(obj metav1.ObjectMeta) metav1.ObjectMeta {
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return metav1.ObjectMeta{
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Name: obj.Name,
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Namespace: obj.Namespace,
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Labels: obj.Labels,
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Annotations: obj.Annotations,
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}
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}
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// Deep copies cluster-independent, user provided data from the given ObjectMeta struct. If in
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// the future the ObjectMeta structure is expanded then any field that is not populated
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// by the api server should be included here.
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func DeepCopyRelevantObjectMeta(obj metav1.ObjectMeta) metav1.ObjectMeta {
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copyMeta := copyObjectMeta(obj)
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if obj.Labels != nil {
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copyMeta.Labels = make(map[string]string)
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for key, val := range obj.Labels {
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copyMeta.Labels[key] = val
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}
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}
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if obj.Annotations != nil {
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copyMeta.Annotations = make(map[string]string)
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for key, val := range obj.Annotations {
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copyMeta.Annotations[key] = val
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}
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}
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return copyMeta
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}
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// Checks if cluster-independent, user provided data in two given ObjectMeta are equal. If in
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// the future the ObjectMeta structure is expanded then any field that is not populated
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// by the api server should be included here.
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func ObjectMetaEquivalent(a, b metav1.ObjectMeta) bool {
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if a.Name != b.Name {
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return false
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}
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if a.Namespace != b.Namespace {
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return false
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}
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if !reflect.DeepEqual(a.Labels, b.Labels) && (len(a.Labels) != 0 || len(b.Labels) != 0) {
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return false
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}
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if !reflect.DeepEqual(a.Annotations, b.Annotations) && (len(a.Annotations) != 0 || len(b.Annotations) != 0) {
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return false
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}
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return true
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}
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// Checks if cluster-independent, user provided data in ObjectMeta and Spec in two given top
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// level api objects are equivalent.
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func ObjectMetaAndSpecEquivalent(a, b runtime.Object) bool {
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objectMetaA := reflect.ValueOf(a).Elem().FieldByName("ObjectMeta").Interface().(metav1.ObjectMeta)
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objectMetaB := reflect.ValueOf(b).Elem().FieldByName("ObjectMeta").Interface().(metav1.ObjectMeta)
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specA := reflect.ValueOf(a).Elem().FieldByName("Spec").Interface()
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specB := reflect.ValueOf(b).Elem().FieldByName("Spec").Interface()
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return ObjectMetaEquivalent(objectMetaA, objectMetaB) && reflect.DeepEqual(specA, specB)
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}
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func DeepCopyApiTypeOrPanic(item interface{}) interface{} {
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result, err := api.Scheme.DeepCopy(item)
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if err != nil {
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panic(err)
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}
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return result
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}
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