ceph-csi/vendor/sigs.k8s.io/controller-runtime/pkg/client/watch.go
Niels de Vos b1a4590967 rebase: update sigs.k8s.io/controller-runtime to current version
There is no release for sigs.k8s.io/controller-runtime that supports
Kubernetes v1.27. The main branch has all the required modifications, so
we can use that for the time being.

Signed-off-by: Niels de Vos <ndevos@ibm.com>
2023-06-06 12:21:43 +00:00

107 lines
2.9 KiB
Go

/*
Copyright 2020 The Kubernetes 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"
"strings"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/rest"
)
// NewWithWatch returns a new WithWatch.
func NewWithWatch(config *rest.Config, options Options) (WithWatch, error) {
client, err := newClient(config, options)
if err != nil {
return nil, err
}
return &watchingClient{client: client}, nil
}
type watchingClient struct {
*client
}
func (w *watchingClient) Watch(ctx context.Context, list ObjectList, opts ...ListOption) (watch.Interface, error) {
switch l := list.(type) {
case runtime.Unstructured:
return w.unstructuredWatch(ctx, l, opts...)
case *metav1.PartialObjectMetadataList:
return w.metadataWatch(ctx, l, opts...)
default:
return w.typedWatch(ctx, l, opts...)
}
}
func (w *watchingClient) listOpts(opts ...ListOption) ListOptions {
listOpts := ListOptions{}
listOpts.ApplyOptions(opts)
if listOpts.Raw == nil {
listOpts.Raw = &metav1.ListOptions{}
}
listOpts.Raw.Watch = true
return listOpts
}
func (w *watchingClient) metadataWatch(ctx context.Context, obj *metav1.PartialObjectMetadataList, opts ...ListOption) (watch.Interface, error) {
gvk := obj.GroupVersionKind()
gvk.Kind = strings.TrimSuffix(gvk.Kind, "List")
listOpts := w.listOpts(opts...)
resInt, err := w.client.metadataClient.getResourceInterface(gvk, listOpts.Namespace)
if err != nil {
return nil, err
}
return resInt.Watch(ctx, *listOpts.AsListOptions())
}
func (w *watchingClient) unstructuredWatch(ctx context.Context, obj runtime.Unstructured, opts ...ListOption) (watch.Interface, error) {
r, err := w.client.unstructuredClient.resources.getResource(obj)
if err != nil {
return nil, err
}
listOpts := w.listOpts(opts...)
return r.Get().
NamespaceIfScoped(listOpts.Namespace, r.isNamespaced()).
Resource(r.resource()).
VersionedParams(listOpts.AsListOptions(), w.client.unstructuredClient.paramCodec).
Watch(ctx)
}
func (w *watchingClient) typedWatch(ctx context.Context, obj ObjectList, opts ...ListOption) (watch.Interface, error) {
r, err := w.client.typedClient.resources.getResource(obj)
if err != nil {
return nil, err
}
listOpts := w.listOpts(opts...)
return r.Get().
NamespaceIfScoped(listOpts.Namespace, r.isNamespaced()).
Resource(r.resource()).
VersionedParams(listOpts.AsListOptions(), w.client.typedClient.paramCodec).
Watch(ctx)
}