86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
// Copyright 2022 The KubeSphere Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package utils
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import (
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"sort"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// IsDeletionCandidate checks if object is candidate to be deleted
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func IsDeletionCandidate(obj metav1.Object, finalizer string) bool {
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return obj.GetDeletionTimestamp() != nil && ContainsString(obj.GetFinalizers(),
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finalizer, nil)
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}
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// NeedToAddFinalizer checks if need to add finalizer to object
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func NeedToAddFinalizer(obj metav1.Object, finalizer string) bool {
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return obj.GetDeletionTimestamp() == nil && !ContainsString(obj.GetFinalizers(),
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finalizer, nil)
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}
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// CopyStrings copies the contents of the specified string slice
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// into a new slice.
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func CopyStrings(s []string) []string {
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if s == nil {
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return nil
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}
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c := make([]string, len(s))
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copy(c, s)
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return c
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}
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// SortStrings sorts the specified string slice in place. It returns the same
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// slice that was provided in order to facilitate method chaining.
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func SortStrings(s []string) []string {
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sort.Strings(s)
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return s
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}
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// ContainsString checks if a given slice of strings contains the provided string.
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// If a modifier func is provided, it is called with the slice item before the comparation.
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func ContainsString(slice []string, s string, modifier func(s string) string) bool {
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for _, item := range slice {
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if item == s {
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return true
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}
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if modifier != nil && modifier(item) == s {
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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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// RemoveString returns a newly created []string that contains all items from slice that
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// are not equal to s and modifier(s) in case modifier func is provided.
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func RemoveString(slice []string, s string, modifier func(s string) string) []string {
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newSlice := make([]string, 0)
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for _, item := range slice {
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if item == s {
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continue
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}
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if modifier != nil && modifier(item) == s {
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continue
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}
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newSlice = append(newSlice, item)
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}
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if len(newSlice) == 0 {
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// Sanitize for unit tests so we don't need to distinguish empty array
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// and nil.
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newSlice = nil
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}
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return newSlice
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}
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