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86 lines
2.4 KiB
86 lines
2.4 KiB
/*
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Copyright The Helm 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 kube // import "helm.sh/helm/v3/pkg/kube"
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import "k8s.io/cli-runtime/pkg/resource"
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// ResourceList provides convenience methods for comparing collections of Infos.
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type ResourceList []*resource.Info
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// Append adds an Info to the Result.
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func (r *ResourceList) Append(val *resource.Info) {
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*r = append(*r, val)
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}
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// Visit implements resource.Visitor. The visitor stops if fn returns an error.
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func (r ResourceList) Visit(fn resource.VisitorFunc) error {
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for _, i := range r {
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if err := fn(i, nil); err != nil {
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return err
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}
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}
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return nil
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}
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// Filter returns a new Result with Infos that satisfy the predicate fn.
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func (r ResourceList) Filter(fn func(*resource.Info) bool) ResourceList {
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var result ResourceList
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for _, i := range r {
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if fn(i) {
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result.Append(i)
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}
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}
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return result
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}
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// Get returns the Info from the result that matches the name and kind.
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func (r ResourceList) Get(info *resource.Info) *resource.Info {
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for _, i := range r {
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if isMatchingInfo(i, info) {
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return i
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}
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}
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return nil
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}
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// Contains checks to see if an object exists.
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func (r ResourceList) Contains(info *resource.Info) bool {
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for _, i := range r {
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if isMatchingInfo(i, info) {
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return true
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}
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}
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return false
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}
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// Difference will return a new Result with objects not contained in rs.
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func (r ResourceList) Difference(rs ResourceList) ResourceList {
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return r.Filter(func(info *resource.Info) bool {
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return !rs.Contains(info)
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})
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}
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// Intersect will return a new Result with objects contained in both Results.
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func (r ResourceList) Intersect(rs ResourceList) ResourceList {
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return r.Filter(rs.Contains)
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}
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// isMatchingInfo returns true if infos match on Name and GroupVersionKind.
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func isMatchingInfo(a, b *resource.Info) bool {
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return a.Name == b.Name && a.Namespace == b.Namespace && a.Mapping.GroupVersionKind.Kind == b.Mapping.GroupVersionKind.Kind
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}
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