Fix hack/update-codegen.sh failed to generates the code in right place

hack/update-codegen.sh

@@ -38,22 +38,41 @@ if [[ "${VERIFY_CODEGEN:-}" == "true" ]]; then
 fi
 COMMON_FLAGS="${VERIFY_FLAG:-} --go-header-file ${SCRIPT_ROOT}/hack/boilerplate.go.txt"
 
+# code generator tools rely on the environment variable GOPATH and generates files to $GOPATH/src/.
+export GOPATH=$(go env GOPATH | awk -F ':' '{print $1}')
+
 echo "Generating deepcopy funcs"
-"${gobin}/deepcopy-gen" --input-dirs "${FQ_APIS}" -O zz_generated.deepcopy --bounding-dirs "${APIS_PKG}" ${COMMON_FLAGS}
+"${gobin}/deepcopy-gen" \
+  --input-dirs=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-package=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-file-base=zz_generated.deepcopy \
+  ${COMMON_FLAGS}
+
+echo "Generating register at ${FQ_APIS}"
+"${gobin}/register-gen" \
+  --input-dirs=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-package=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-file-base=zz_generated.register \
+  ${COMMON_FLAGS}
 
 echo "Generating clientset at ${OUTPUT_PKG}/${CLIENTSET_PKG_NAME}"
-"${gobin}/client-gen" --clientset-name "${CLIENTSET_NAME}" --input-base "" --input "${FQ_APIS}" --output-package "${OUTPUT_PKG}/${CLIENTSET_PKG_NAME}" ${COMMON_FLAGS}
+"${gobin}/client-gen" \
+  --input-base="" \
+  --input=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-package=sigs.k8s.io/work-api/pkg/client/clientset \
+  --clientset-name=versioned \
+  ${COMMON_FLAGS}
 
 echo "Generating listers at ${OUTPUT_PKG}/listers"
-"${gobin}/lister-gen" --input-dirs "${FQ_APIS}" --output-package "${OUTPUT_PKG}/listers" ${COMMON_FLAGS}
+"${gobin}/lister-gen" \
+  --input-dirs=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --output-package=sigs.k8s.io/work-api/pkg/client/listers \
+  ${COMMON_FLAGS}
 
 echo "Generating informers at ${OUTPUT_PKG}/informers"
 "${gobin}/informer-gen" \
-         --input-dirs "${FQ_APIS}" \
-         --versioned-clientset-package "${OUTPUT_PKG}/${CLIENTSET_PKG_NAME}/${CLIENTSET_NAME}" \
-         --listers-package "${OUTPUT_PKG}/listers" \
-         --output-package "${OUTPUT_PKG}/informers" \
-         ${COMMON_FLAGS}
-
-echo "Generating register at ${FQ_APIS}"
-"${gobin}/register-gen" --output-package "${FQ_APIS}" --input-dirs ${FQ_APIS} ${COMMON_FLAGS}
+  --input-dirs=sigs.k8s.io/work-api/pkg/apis/v1alpha1 \
+  --versioned-clientset-package=sigs.k8s.io/work-api/pkg/client/clientset/versioned \
+  --listers-package=sigs.k8s.io/work-api/pkg/client/listers \
+  --output-package=sigs.k8s.io/work-api/pkg/client/informers \
+  ${COMMON_FLAGS}

pkg/apis/v1alpha1/appliedwork_type.go

@@ -65,6 +65,7 @@ type AppliedResourceMeta struct {
 // +kubebuilder:subresource:status
 // +kubebuilder:resource:scope=Cluster,categories={fleet}
 // +kubebuilder:object:root=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // AppliedWork represents an applied work on managed cluster that is placed
 // on a managed cluster. An appliedwork links to a work on a hub recording resources
@@ -89,6 +90,7 @@ type AppliedWork struct {
 }
 
 // +kubebuilder:object:root=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // AppliedWorkList contains a list of AppliedWork
 type AppliedWorkList struct {

pkg/apis/v1alpha1/doc.go

@@ -16,6 +16,7 @@ limitations under the License.
 
 // Package v1alpha1 contains API schema definitions for the Multi-Cluster
 // Services v1alpha1 API group.
+// +k8s:deepcopy-gen=package,register
 // +kubebuilder:object:generate=true
 // +groupName=multicluster.x-k8s.io
 package v1alpha1

pkg/apis/v1alpha1/work_types.go

@@ -101,6 +101,7 @@ type ManifestCondition struct {
 
 // +genclient
 // +kubebuilder:object:root=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 // +kubebuilder:subresource:status
 
 // Work is the Schema for the works API
@@ -116,6 +117,7 @@ type Work struct {
 }
 
 // +kubebuilder:object:root=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // WorkList contains a list of Work
 type WorkList struct {