diff --git a/utils/scheme/scheme.go b/utils/scheme/scheme.go new file mode 100644 index 0000000..7986821 --- /dev/null +++ b/utils/scheme/scheme.go @@ -0,0 +1,56 @@ +/* +Copyright 2018 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 scheme + +import ( + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/apimachinery/pkg/runtime/schema" +) + +// Builder builds a new Scheme for mapping go types to Kubernetes GroupVersionKinds. +type Builder struct { + GroupVersion schema.GroupVersion + runtime.SchemeBuilder +} + +// Register adds one or objects to the SchemeBuilder so they can be added to a Scheme. Register mutates bld. +func (bld *Builder) Register(object ...runtime.Object) *Builder { + bld.SchemeBuilder.Register(func(scheme *runtime.Scheme) error { + scheme.AddKnownTypes(bld.GroupVersion, object...) + metav1.AddToGroupVersion(scheme, bld.GroupVersion) + return nil + }) + return bld +} + +// RegisterAll registers all types from the Builder argument. RegisterAll mutates bld. +func (bld *Builder) RegisterAll(b *Builder) *Builder { + bld.SchemeBuilder = append(bld.SchemeBuilder, b.SchemeBuilder...) + return bld +} + +// AddToScheme adds all registered types to s. +func (bld *Builder) AddToScheme(s *runtime.Scheme) error { + return bld.SchemeBuilder.AddToScheme(s) +} + +// Build returns a new Scheme containing the registered types. +func (bld *Builder) Build() (*runtime.Scheme, error) { + s := runtime.NewScheme() + return s, bld.AddToScheme(s) +}