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52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
/*
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Copyright 2022 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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"k8s.io/kube-openapi/pkg/schemamutation"
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"k8s.io/kube-openapi/pkg/validation/spec"
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)
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// wrapRefs wraps OpenAPI V3 Schema refs that contain sibling elements.
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// AllOf is used to wrap the Ref to prevent references from having sibling elements
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// Please see https://github.com/kubernetes/kubernetes/issues/106387#issuecomment-967640388
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func WrapRefs(schema *spec.Schema) *spec.Schema {
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walker := schemamutation.Walker{
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SchemaCallback: func(schema *spec.Schema) *spec.Schema {
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orig := schema
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clone := func() {
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if orig == schema {
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schema = new(spec.Schema)
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*schema = *orig
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}
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}
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if schema.Ref.String() != "" && !reflect.DeepEqual(*schema, spec.Schema{SchemaProps: spec.SchemaProps{Ref: schema.Ref}}) {
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clone()
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refSchema := new(spec.Schema)
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refSchema.Ref = schema.Ref
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schema.Ref = spec.Ref{}
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schema.AllOf = []spec.Schema{*refSchema}
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}
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return schema
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},
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RefCallback: schemamutation.RefCallbackNoop,
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}
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return walker.WalkSchema(schema)
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}
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