49 lines
1.8 KiB
Go
49 lines
1.8 KiB
Go
/*
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Copyright 2018 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 versioned
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/kubernetes/pkg/kubectl/describe"
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"k8s.io/kubernetes/pkg/printers"
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printersinternal "k8s.io/kubernetes/pkg/printers/internalversion"
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)
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// DescriberFn gives a way to easily override the function for unit testing if needed
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var DescriberFn describe.DescriberFunc = Describer
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// Describer returns a Describer for displaying the specified RESTMapping type or an error.
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func Describer(restClientGetter genericclioptions.RESTClientGetter, mapping *meta.RESTMapping) (printers.Describer, error) {
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clientConfig, err := restClientGetter.ToRESTConfig()
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if err != nil {
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return nil, err
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}
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// try to get a describer
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if describer, ok := printersinternal.DescriberFor(mapping.GroupVersionKind.GroupKind(), clientConfig); ok {
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return describer, nil
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}
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// if this is a kind we don't have a describer for yet, go generic if possible
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if genericDescriber, ok := printersinternal.GenericDescriberFor(mapping, clientConfig); ok {
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return genericDescriber, nil
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}
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// otherwise return an unregistered error
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return nil, fmt.Errorf("no description has been implemented for %s", mapping.GroupVersionKind.String())
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}
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