Alter the build to generate for __internal correctly

cmd/gendeepcopy/deep_copy.go

@@ -61,7 +61,7 @@ func pkgPath(group, version string) string {
 		group = "api"
 	}
 	gv := group
-	if version != "" {
+	if version != "__internal" {
 		gv = path.Join(group, version)
 	}
 	switch {

hack/after-build/update-generated-deep-copies.sh

@@ -54,7 +54,7 @@ function generate_deep_copies() {
     else
       apiVersions="${ver}"
     fi
-    KUBE_API_VERSIONS="${apiVersions}" generate_version "${ver}"
+    KUBE_API_VERSIONS="${apiVersions:-}" generate_version "${ver}"
   done
 }
 
@@ -62,6 +62,6 @@ function generate_deep_copies() {
 # Currently pkg/api/deep_copy_generated.go is generated by the new go2idl generator.
 # All others (mentioned above) are still generated by the old reflection-based generator.
 # TODO: Migrate these to the new generator.
-DEFAULT_VERSIONS="v1 authorization/ authorization/v1beta1 extensions/ extensions/v1beta1 componentconfig/ componentconfig/v1alpha1 metrics/ metrics/v1alpha1"
+DEFAULT_VERSIONS="v1 authorization/__internal authorization/v1beta1 extensions/__internal extensions/v1beta1 componentconfig/__internal componentconfig/v1alpha1 metrics/__internal metrics/v1alpha1"
 VERSIONS=${VERSIONS:-$DEFAULT_VERSIONS}
 generate_deep_copies "$VERSIONS"

hack/lib/util.sh

@@ -282,7 +282,7 @@ kube::util::group-version-to-pkg-path() {
   # moving the results to pkg/apis/api.
   case "${group_version}" in
     # both group and version are "", this occurs when we generate deep copies for internal objects of the legacy v1 API.
-    /)
+    __internal)
       echo "api"
       ;;
     v1)
@@ -292,7 +292,7 @@ kube::util::group-version-to-pkg-path() {
       echo "api/unversioned"
       ;;
     *)
-      echo "apis/${group_version}"
+      echo "apis/${group_version%__internal}"
       ;;
   esac
 }