Merge pull request #1371 from spotify/mob/prepare-from-catalog

File Preparer for the Scaffolder using the Catalog Template Entity

packages/backend/src/plugins/scaffolder.ts

@@ -17,13 +17,17 @@
 import {
   CookieCutter,
   createRouter,
-  DiskStorage,
+  FilePreparer,
+  Preparers,
 } from '@backstage/plugin-scaffolder-backend';
 import type { PluginEnvironment } from '../types';
 
 export default async function createPlugin({ logger }: PluginEnvironment) {
-  const storage = new DiskStorage({ logger });
   const templater = new CookieCutter();
+  const filePreparer = new FilePreparer();
+  const preparers = new Preparers();
 
-  return await createRouter({ storage, templater, logger });
+  preparers.register('file', filePreparer);
+
+  return await createRouter({ preparers, templater, logger });
 }

packages/catalog-model/src/kinds/TemplateEntityV1alpha1.ts

@@ -26,6 +26,7 @@ export interface TemplateEntityV1alpha1 extends Entity {
   kind: typeof KIND;
   spec: {
     type: string;
+    path?: string;
   };
 }
 
@@ -39,6 +40,7 @@ export class TemplateEntityV1alpha1Policy implements EntityPolicy {
       spec: yup
         .object({
           type: yup.string().required().min(1),
+          path: yup.string(),
         })
         .required(),
     });