78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
/*
|
|
Copyright 2022 The Kruise 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 client
|
|
|
|
import (
|
|
"context"
|
|
"flag"
|
|
|
|
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
|
|
"k8s.io/client-go/rest"
|
|
"sigs.k8s.io/controller-runtime/pkg/cache"
|
|
"sigs.k8s.io/controller-runtime/pkg/client"
|
|
)
|
|
|
|
var (
|
|
disableNoDeepCopy bool
|
|
)
|
|
|
|
func init() {
|
|
flag.BoolVar(&disableNoDeepCopy, "disable-no-deepcopy", false, "If you are going to disable NoDeepCopy List in some controllers and webhooks.")
|
|
}
|
|
|
|
type internalCache struct {
|
|
cache.Cache
|
|
noDeepCopyLister *noDeepCopyLister
|
|
}
|
|
|
|
func NewCache(config *rest.Config, opts cache.Options) (cache.Cache, error) {
|
|
if opts.Scheme == nil {
|
|
opts.Scheme = clientgoscheme.Scheme
|
|
}
|
|
c, err := cache.New(config, opts)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &internalCache{
|
|
Cache: c,
|
|
noDeepCopyLister: &noDeepCopyLister{cache: c, scheme: opts.Scheme},
|
|
}, nil
|
|
}
|
|
|
|
func (ic *internalCache) List(ctx context.Context, list client.ObjectList, opts ...client.ListOption) error {
|
|
if !disableNoDeepCopy && isDisableDeepCopy(opts) {
|
|
return ic.noDeepCopyLister.List(ctx, list, opts...)
|
|
}
|
|
return ic.Cache.List(ctx, list, opts...)
|
|
}
|
|
|
|
var DisableDeepCopy = disableDeepCopy{}
|
|
|
|
type disableDeepCopy struct{}
|
|
|
|
func (disableDeepCopy) ApplyToList(*client.ListOptions) {
|
|
}
|
|
|
|
func isDisableDeepCopy(opts []client.ListOption) bool {
|
|
for _, opt := range opts {
|
|
if opt == DisableDeepCopy {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|