Migrate to kube codegen (#15491)

hack/update-codegen.sh

@@ -60,20 +60,25 @@ ${REPO_ROOT_DIR}/hack/update-checksums.sh
 
 group "Kubernetes Codegen"
 
-# generate the code with:
-# --output-base    because this script should also be able to run inside the vendor dir of
-#                  k8s.io/kubernetes. The output-base is needed for the generators to output into the vendor dir
-#                  instead of the $GOPATH directly. For normal projects this can be dropped.
-${CODEGEN_PKG}/generate-groups.sh "deepcopy,client,informer,lister" \
-  knative.dev/serving/pkg/client knative.dev/serving/pkg/apis \
-  "serving:v1 serving:v1beta1 autoscaling:v1alpha1" \
-  --go-header-file "${boilerplate}"
+source "${CODEGEN_PKG}/kube_codegen.sh"
 
-# Generate our own client for cert-manager (otherwise injection won't work)
-${CODEGEN_PKG}/generate-groups.sh "deepcopy,client,informer,lister" \
-  knative.dev/serving/pkg/client/certmanager github.com/cert-manager/cert-manager/pkg/apis \
-  "certmanager:v1 acme:v1" \
-  --go-header-file ${REPO_ROOT_DIR}/hack/boilerplate/boilerplate.go.txt
+kube::codegen::gen_helpers \
+  --boilerplate "${REPO_ROOT_DIR}/hack/boilerplate/boilerplate.go.txt" \
+  "${REPO_ROOT_DIR}/pkg/apis"
+
+kube::codegen::gen_client \
+  --boilerplate "${REPO_ROOT_DIR}/hack/boilerplate/boilerplate.go.txt" \
+  --output-dir "${REPO_ROOT_DIR}/pkg/client" \
+  --output-pkg "knative.dev/serving/pkg/client" \
+  --with-watch \
+  "${REPO_ROOT_DIR}/pkg/apis"
+
+kube::codegen::gen_client \
+  --boilerplate "${REPO_ROOT_DIR}/hack/boilerplate/boilerplate.go.txt" \
+  --output-dir "${REPO_ROOT_DIR}/pkg/client/certmanager" \
+  --output-pkg "knative.dev/serving/pkg/client/certmanager" \
+  --with-watch \
+  "${REPO_ROOT_DIR}/vendor/github.com/cert-manager/cert-manager/pkg/apis"
 
 group "Knative Codegen"
 
@@ -92,16 +97,15 @@ ${KNATIVE_CODEGEN_PKG}/hack/generate-knative.sh "injection" \
 
 group "Deepcopy Gen"
 
-# Depends on generate-groups.sh to install bin/deepcopy-gen
 ${GOPATH}/bin/deepcopy-gen \
-  -O zz_generated.deepcopy \
+  --output-file zz_generated.deepcopy.go \
   --go-header-file "${boilerplate}" \
-  -i knative.dev/serving/pkg/apis/config \
-  -i knative.dev/serving/pkg/reconciler/route/config \
-  -i knative.dev/serving/pkg/autoscaler/config/autoscalerconfig \
-  -i knative.dev/serving/pkg/autoscaler/scaling \
-  -i knative.dev/serving/pkg/deployment \
-  -i knative.dev/serving/pkg/gc
+  knative.dev/serving/pkg/apis/config \
+  knative.dev/serving/pkg/reconciler/route/config \
+  knative.dev/serving/pkg/autoscaler/config/autoscalerconfig \
+  knative.dev/serving/pkg/autoscaler/scaling \
+  knative.dev/serving/pkg/deployment \
+  knative.dev/serving/pkg/gc
 
 group "Generating API reference docs"
 

pkg/apis/zz_generated.deepcopy.go

@@ -0,0 +1,22 @@
+//go:build !ignore_autogenerated
+// +build !ignore_autogenerated
+
+/*
+Copyright 2022 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package apis