helper.go

Documentation: sigs.k8s.io/controller-runtime/pkg/envtest

     1  /*
     2  Copyright 2021 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package envtest
    18  
    19  import (
    20  	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
    21  	"k8s.io/client-go/kubernetes/scheme"
    22  )
    23  
    24  var (
    25  	crdScheme = scheme.Scheme
    26  )
    27  
    28  // init is required to correctly initialize the crdScheme package variable.
    29  func init() {
    30  	_ = apiextensionsv1.AddToScheme(crdScheme)
    31  }
    32  
    33  // mergePaths merges two string slices containing paths.
    34  // This function makes no guarantees about order of the merged slice.
    35  func mergePaths(s1, s2 []string) []string {
    36  	m := make(map[string]struct{})
    37  	for _, s := range s1 {
    38  		m[s] = struct{}{}
    39  	}
    40  	for _, s := range s2 {
    41  		m[s] = struct{}{}
    42  	}
    43  	merged := make([]string, len(m))
    44  	i := 0
    45  	for key := range m {
    46  		merged[i] = key
    47  		i++
    48  	}
    49  	return merged
    50  }
    51  
    52  // mergeCRDs merges two CRD slices using their names.
    53  // This function makes no guarantees about order of the merged slice.
    54  func mergeCRDs(s1, s2 []*apiextensionsv1.CustomResourceDefinition) []*apiextensionsv1.CustomResourceDefinition {
    55  	m := make(map[string]*apiextensionsv1.CustomResourceDefinition)
    56  	for _, obj := range s1 {
    57  		m[obj.GetName()] = obj
    58  	}
    59  	for _, obj := range s2 {
    60  		m[obj.GetName()] = obj
    61  	}
    62  	merged := make([]*apiextensionsv1.CustomResourceDefinition, len(m))
    63  	i := 0
    64  	for _, obj := range m {
    65  		merged[i] = obj.DeepCopy()
    66  		i++
    67  	}
    68  	return merged
    69  }
    70
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