mirror of https://github.com/knative/pkg.git
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
/*
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Copyright 2021 The Knative 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 unstructured
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// ConvertTo converts a runtime.Object to an unstructured.Unstructured type
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func ConvertTo(s *runtime.Scheme, obj runtime.Object) (*unstructured.Unstructured, error) {
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var (
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err error
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u unstructured.Unstructured
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)
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u.Object, err = runtime.DefaultUnstructuredConverter.ToUnstructured(obj)
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if err != nil {
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return nil, fmt.Errorf("failed to convert to unstructured: %w", err)
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}
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gvk := u.GroupVersionKind()
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if gvk.Group == "" || gvk.Kind == "" {
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gvks, _, err := s.ObjectKinds(obj)
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if err != nil {
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return nil, fmt.Errorf("failed to convert to unstructured: %w", err)
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}
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apiv, k := gvks[0].ToAPIVersionAndKind()
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u.SetAPIVersion(apiv)
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u.SetKind(k)
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}
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return &u, nil
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}
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// ConvertManyTo converts a slice of runtime.Object to a slice of *unstructured.Unstructured
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func ConvertManyTo(s *runtime.Scheme, objs []runtime.Object) ([]*unstructured.Unstructured, error) {
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ul := make([]*unstructured.Unstructured, 0, len(objs))
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for _, obj := range objs {
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u, err := ConvertTo(s, obj)
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if err != nil {
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return nil, err
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}
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ul = append(ul, u)
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}
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return ul, nil
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}
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// ConvertManyToObjects converts a slice of runtime.Object to a slice of runtime.Objects
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// where each element is of the type *unstructured.Unstructured
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func ConvertManyToObjects(s *runtime.Scheme, objs []runtime.Object) ([]runtime.Object, error) {
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ul := make([]runtime.Object, 0, len(objs))
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for _, obj := range objs {
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u, err := ConvertTo(s, obj)
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if err != nil {
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return nil, err
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}
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ul = append(ul, u)
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}
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return ul, nil
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}
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