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source.go
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source.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package controllerutils
import (
"context"
"k8s.io/client-go/util/workqueue"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
)
// EnqueueOnce is a source.Source that simply triggers the reconciler once by directly enqueueing an empty
// reconcile.Request.
var EnqueueOnce = source.Func(func(_ context.Context, _ handler.EventHandler, q workqueue.RateLimitingInterface, _ ...predicate.Predicate) error {
q.Add(reconcile.Request{})
return nil
})
// HandleOnce is a source.Source that simply triggers the reconciler once by calling 'Create' at the event handler with
// an empty event.CreateEvent.
var HandleOnce = source.Func(func(ctx context.Context, handler handler.EventHandler, queue workqueue.RateLimitingInterface, _ ...predicate.Predicate) error {
handler.Create(ctx, event.CreateEvent{}, queue)
return nil
})
// EnqueueAnonymously is a handler.EventHandler which enqueues a reconcile.Request without any namespace/name data.
var EnqueueAnonymously = handler.EnqueueRequestsFromMapFunc(func(_ context.Context, _ client.Object) []reconcile.Request {
return []reconcile.Request{{}}
})