Merge pull request #52753 from munnerz/sample-controller

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

sample-controller: add example CRD controller

**What this PR does / why we need it**:

Adds a sample-controller example repository

fixes #52752

**Special notes for your reviewer**:

This is currently based on the sttts:sttts-codegen-scripts branch and should not be merged until that is (ref https://github.com/kubernetes/kubernetes/pull/52186)

**Release note**:

```
Add sample-controller repository
```

/cc @sttts @nikhita @colemickens

Kubernetes-commit: 9a7800f7d2efb88b397674672ac56f898826cf7c

vendor/k8s.io/apimachinery/pkg/apis/meta/internalversion/conversion.go

@@ -0,0 +1,77 @@
+/*
+Copyright 2017 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 internalversion
+
+import (
+	"fmt"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/conversion"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+func Convert_internalversion_ListOptions_To_v1_ListOptions(in *ListOptions, out *metav1.ListOptions, s conversion.Scope) error {
+	if err := metav1.Convert_fields_Selector_To_string(&in.FieldSelector, &out.FieldSelector, s); err != nil {
+		return err
+	}
+	if err := metav1.Convert_labels_Selector_To_string(&in.LabelSelector, &out.LabelSelector, s); err != nil {
+		return err
+	}
+	out.IncludeUninitialized = in.IncludeUninitialized
+	out.ResourceVersion = in.ResourceVersion
+	out.TimeoutSeconds = in.TimeoutSeconds
+	out.Watch = in.Watch
+	out.Limit = in.Limit
+	out.Continue = in.Continue
+	return nil
+}
+
+func Convert_v1_ListOptions_To_internalversion_ListOptions(in *metav1.ListOptions, out *ListOptions, s conversion.Scope) error {
+	if err := metav1.Convert_string_To_fields_Selector(&in.FieldSelector, &out.FieldSelector, s); err != nil {
+		return err
+	}
+	if err := metav1.Convert_string_To_labels_Selector(&in.LabelSelector, &out.LabelSelector, s); err != nil {
+		return err
+	}
+	out.IncludeUninitialized = in.IncludeUninitialized
+	out.ResourceVersion = in.ResourceVersion
+	out.TimeoutSeconds = in.TimeoutSeconds
+	out.Watch = in.Watch
+	out.Limit = in.Limit
+	out.Continue = in.Continue
+	return nil
+}
+
+func Convert_map_to_v1_LabelSelector(in *map[string]string, out *metav1.LabelSelector, s conversion.Scope) error {
+	if in == nil {
+		return nil
+	}
+	out = new(metav1.LabelSelector)
+	for labelKey, labelValue := range *in {
+		metav1.AddLabelToSelector(out, labelKey, labelValue)
+	}
+	return nil
+}
+
+func Convert_v1_LabelSelector_to_map(in *metav1.LabelSelector, out *map[string]string, s conversion.Scope) error {
+	var err error
+	*out, err = metav1.LabelSelectorAsMap(in)
+	if err != nil {
+		err = field.Invalid(field.NewPath("labelSelector"), *in, fmt.Sprintf("cannot convert to old selector: %v", err))
+	}
+	return err
+}