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79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
/*
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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 releaseutil // import "k8s.io/helm/pkg/releaseutil"
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import rspb "k8s.io/helm/pkg/proto/hapi/release"
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// FilterFunc returns true if the release object satisfies
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// the predicate of the underlying filter func.
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type FilterFunc func(*rspb.Release) bool
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// Check applies the FilterFunc to the release object.
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func (fn FilterFunc) Check(rls *rspb.Release) bool {
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if rls == nil {
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return false
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}
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return fn(rls)
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}
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// Filter applies the filter(s) to the list of provided releases
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// returning the list that satisfies the filtering predicate.
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func (fn FilterFunc) Filter(rels []*rspb.Release) (rets []*rspb.Release) {
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for _, rel := range rels {
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if fn.Check(rel) {
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rets = append(rets, rel)
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}
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}
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return
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}
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// Any returns a FilterFunc that filters a list of releases
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// determined by the predicate 'f0 || f1 || ... || fn'.
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func Any(filters ...FilterFunc) FilterFunc {
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return func(rls *rspb.Release) bool {
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for _, filter := range filters {
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if filter(rls) {
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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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}
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// All returns a FilterFunc that filters a list of releases
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// determined by the predicate 'f0 && f1 && ... && fn'.
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func All(filters ...FilterFunc) FilterFunc {
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return func(rls *rspb.Release) bool {
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for _, filter := range filters {
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if !filter(rls) {
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return false
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}
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}
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return true
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}
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}
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// StatusFilter filters a set of releases by status code.
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func StatusFilter(status rspb.Status_Code) FilterFunc {
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return FilterFunc(func(rls *rspb.Release) bool {
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if rls == nil {
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return true
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}
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return rls.GetInfo().GetStatus().Code == status
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})
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}
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