Generate reconcilers for resources out of tree. (knative#1175)

* genreconciler:nonNamespaced

* Adding a force-kinds flag to the reconciler generator to allow us to generate reconcilers for non-owned types.

* force-kinds --> force-genreconciler-kinds

* some minor nits with the generators for non-knative types needed to be removed.

* remove whitespace

Co-authored-by: Nacho Cano <[email protected]>

apis/test/example/v1alpha1/fiz_types.go

@@ -0,0 +1,94 @@
+/*
+Copyright 2020 The Knative 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 v1alpha1
+
+import (
+	"context"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"knative.dev/pkg/apis"
+	duckv1 "knative.dev/pkg/apis/duck/v1"
+	"knative.dev/pkg/kmeta"
+)
+
+// +genclient
+// +genclient:nonNamespaced
+// +genreconciler
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// ClusterFiz is for testing.
+type ClusterFiz struct {
+	metav1.TypeMeta `json:",inline"`
+	// +optional
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	// Spec holds the desired state of the ClusterFiz (from the client).
+	// +optional
+	Spec ClusterFizSpec `json:"spec,omitempty"`
+
+	// Status communicates the observed state of the ClusterFiz (from the controller).
+	// +optional
+	Status ClusterFizStatus `json:"status,omitempty"`
+}
+
+// Check that ClusterFiz can be validated and defaulted.
+var _ apis.Validatable = (*ClusterFiz)(nil)
+var _ apis.Defaultable = (*ClusterFiz)(nil)
+var _ kmeta.OwnerRefable = (*ClusterFiz)(nil)
+
+// ClusterFizSpec holds the desired state of the ClusterFiz (from the client).
+type ClusterFizSpec struct{}
+
+// ClusterFizStatus communicates the observed state of the ClusterFiz (from the controller).
+type ClusterFizStatus struct {
+	duckv1.Status `json:",inline"`
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// ClusterFizList is a list of ClusterFiz resources
+type ClusterFizList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata"`
+
+	Items []ClusterFiz `json:"items"`
+}
+
+// -- lifecycle --
+
+func (fs *ClusterFizStatus) InitializeConditions() {}
+
+// GetGroupVersionKind implements kmeta.OwnerRefable
+func (f *ClusterFiz) GetGroupVersionKind() schema.GroupVersionKind {
+	return SchemeGroupVersion.WithKind("Bar")
+}
+
+// -- Defaults --
+
+// SetDefaults implements apis.Defaultable
+func (f *ClusterFiz) SetDefaults(ctx context.Context) {
+	// Nothing to default.
+}
+
+// -- Validation --
+
+// Validate implements apis.Validatable
+func (f *ClusterFiz) Validate(ctx context.Context) *apis.FieldError {
+	// Nothing to validate.
+	return nil
+}