diff --git a/tools/cache/listwatch.go b/tools/cache/listwatch.go index db2329c5..06657a3b 100644 --- a/tools/cache/listwatch.go +++ b/tools/cache/listwatch.go @@ -63,8 +63,18 @@ type Getter interface { // NewListWatchFromClient creates a new ListWatch from the specified client, resource, namespace and field selector. func NewListWatchFromClient(c Getter, resource string, namespace string, fieldSelector fields.Selector) *ListWatch { - listFunc := func(options metav1.ListOptions) (runtime.Object, error) { + optionsModifier := func(options *metav1.ListOptions) { options.FieldSelector = fieldSelector.String() + } + return NewFilteredListWatchFromClient(c, resource, namespace, optionsModifier) +} + +// NewFilteredListWatchFromClient creates a new ListWatch from the specified client, resource, namespace, and option modifier. +// Option modifier is a function takes a ListOptions and modifies the consumed ListOptions. Provide customized modifier function +// to apply modification to ListOptions with a field selector, a label selector, or any other desired options. +func NewFilteredListWatchFromClient(c Getter, resource string, namespace string, optionsModifier func(options *metav1.ListOptions)) *ListWatch { + listFunc := func(options metav1.ListOptions) (runtime.Object, error) { + optionsModifier(&options) return c.Get(). Namespace(namespace). Resource(resource). @@ -74,7 +84,7 @@ func NewListWatchFromClient(c Getter, resource string, namespace string, fieldSe } watchFunc := func(options metav1.ListOptions) (watch.Interface, error) { options.Watch = true - options.FieldSelector = fieldSelector.String() + optionsModifier(&options) return c.Get(). Namespace(namespace). Resource(resource).