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function.go
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function.go
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// Copyright 2022 The kpt 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 porch
import (
"context"
"time"
"github.com/GoogleContainerTools/kpt/porch/api/porch/v1alpha1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/cli-runtime/pkg/genericclioptions"
// Enable the GCP Authentication plugin
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
)
const Expiration time.Duration = 10 * time.Second
// FunctionListGetter gets the list of v1alpha1.Functions from the cluster.
type FunctionListGetter struct{}
func (f FunctionListGetter) Get(ctx context.Context) []v1alpha1.Function {
kubeflags := genericclioptions.NewConfigFlags(true)
client, err := CreateRESTClient(kubeflags)
if err != nil {
return nil
}
scheme := runtime.NewScheme()
if err := v1alpha1.SchemeBuilder.AddToScheme(scheme); err != nil {
return nil
}
codec := runtime.NewParameterCodec(scheme)
var functions v1alpha1.FunctionList
if err := client.Get().
Timeout(Expiration).
Resource("functions").
VersionedParams(&metav1.GetOptions{}, codec).
Do(ctx).
Into(&functions); err != nil {
return nil
}
return functions.Items
}
// FunctionGetter gets a specific v1alpha1.Functions by name.
type FunctionGetter struct{}
func (f FunctionGetter) Get(ctx context.Context, name, namespace string) (v1alpha1.Function, error) {
kubeflags := genericclioptions.NewConfigFlags(true)
var function v1alpha1.Function
client, err := CreateRESTClient(kubeflags)
if err != nil {
return function, err
}
scheme := runtime.NewScheme()
if err := v1alpha1.SchemeBuilder.AddToScheme(scheme); err != nil {
return function, err
}
codec := runtime.NewParameterCodec(scheme)
err = client.Get().
Timeout(Expiration).
Resource("functions").
Name(name).
Namespace(namespace).
VersionedParams(&metav1.GetOptions{}, codec).
Do(ctx).
Into(&function)
return function, err
}
func ToShortNames(functions []v1alpha1.Function) []string {
var shortNameFunctions []string
for _, function := range functions {
shortNameFunctions = append(shortNameFunctions, function.Name)
}
return shortNameFunctions
}
func UnifyKeywords(functions []v1alpha1.Function) []string {
var keywords []string
keywordsMap := map[string]bool{}
for _, function := range functions {
for _, kw := range function.Spec.Keywords {
if _, ok := keywordsMap[kw]; !ok {
keywordsMap[kw] = true
keywords = append(keywords, kw)
}
}
}
return keywords
}