scaffolder: add permissions

Signed-off-by: Vincenzo Scamporlino <vincenzos@spotify.com>

plugins/scaffolder-common/package.json

@@ -39,6 +39,7 @@
   },
   "dependencies": {
     "@backstage/catalog-model": "workspace:^",
+    "@backstage/plugin-permission-common": "workspace:^",
     "@backstage/types": "workspace:^"
   },
   "devDependencies": {

plugins/scaffolder-common/src/index.ts

@@ -25,4 +25,5 @@ export {
   templateEntityV1beta3Validator,
   isTemplateEntityV1beta3,
 } from './TemplateEntityV1beta3';
+export * from './permissions';
 export type { TemplateEntityV1beta3 } from './TemplateEntityV1beta3';

plugins/scaffolder-common/src/permissions.ts

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2022 The Backstage 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.
+ */
+
+import { createPermission } from '@backstage/plugin-permission-common';
+
+export const RESOURCE_TYPE_SCAFFOLDER_TEMPLATE = 'scaffolder-field';
+
+export const templateSchemaExecutePermission = createPermission({
+  name: 'scaffolder.template.schema.execute',
+  attributes: {
+    action: 'create',
+  },
+  resourceType: RESOURCE_TYPE_SCAFFOLDER_TEMPLATE,
+});
+
+export const scaffolderPermissions = [templateSchemaExecutePermission];