Fix license handling in code generation (#380)

Signed-off-by: ialidzhikov <[email protected]>

Author: ialidzhikov

hack/LICENSE_BOILERPLATE.txt

@@ -0,0 +1,15 @@
+/*
+Copyright (c) YEAR SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
+
+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.
+*/

hack/generate-code

@@ -14,25 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-function headers() {
-  echo '''/*
-Copyright YEAR The Gardener 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.
-*/
-'''
-}
-
 rm -f $GOPATH/bin/*-gen
 
 CURRENT_DIR=$(dirname $0)
@@ -60,7 +41,7 @@ bash "${PROJECT_ROOT}"/vendor/k8s.io/code-generator/generate-internal-groups.sh
   github.com/gardener/machine-controller-manager/pkg/apis \
   github.com/gardener/machine-controller-manager/pkg/apis \
   "machine:v1alpha1" \
-  -h <(headers)
+  -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
 
 rm -Rf ./${PROJECT_ROOT}/openapi/openapi_generated.go
 go install ./${PROJECT_ROOT}/vendor/k8s.io/code-generator/cmd/openapi-gen
@@ -77,4 +58,4 @@ ${GOPATH}/bin/openapi-gen "$@" \
   --input-dirs=k8s.io/apimachinery/pkg/version \
   --input-dirs=k8s.io/apimachinery/pkg/runtime \
   --output-package=github.com/gardener/machine-controller-manager/pkg/openapi \
-  -h <(headers)
+  -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"