events-backend: migrate to use exports

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/events-backend/alpha-api-report.md

@@ -0,0 +1,12 @@
+## API Report File for "@backstage/plugin-events-backend"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+import { BackendFeature } from '@backstage/backend-plugin-api';
+
+// @alpha
+export const eventsPlugin: () => BackendFeature;
+
+// (No @packageDocumentation comment for this package)
+```

plugins/events-backend/api-report.md

@@ -3,7 +3,6 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
-import { BackendFeature } from '@backstage/backend-plugin-api';
 import { Config } from '@backstage/config';
 import { EventBroker } from '@backstage/plugin-events-node';
 import { EventPublisher } from '@backstage/plugin-events-node';
@@ -28,9 +27,6 @@ export class EventsBackend {
   start(): Promise<void>;
 }
 
-// @alpha
-export const eventsPlugin: () => BackendFeature;
-
 // @public
 export class HttpPostIngressEventPublisher implements EventPublisher {
   // (undocumented)

plugins/events-backend/package.json

@@ -5,17 +5,28 @@
   "types": "src/index.ts",
   "license": "Apache-2.0",
   "publishConfig": {
-    "access": "public",
-    "alphaTypes": "dist/index.alpha.d.ts",
-    "main": "dist/index.cjs.js",
-    "types": "dist/index.d.ts"
+    "access": "public"
+  },
+  "exports": {
+    ".": "./src/index.ts",
+    "./alpha": "./src/alpha.ts"
+  },
+  "typesVersions": {
+    "*": {
+      "*": [
+        "src/index.ts"
+      ],
+      "alpha": [
+        "src/alpha.ts"
+      ]
+    }
   },
   "backstage": {
     "role": "backend-plugin"
   },
   "scripts": {
     "start": "backstage-cli package start",
-    "build": "backstage-cli package build --experimental-type-build",
+    "build": "backstage-cli package build",
     "lint": "backstage-cli package lint",
     "test": "backstage-cli package test",
     "clean": "backstage-cli package clean",
@@ -40,7 +51,6 @@
     "supertest": "^6.1.3"
   },
   "files": [
-    "alpha",
     "config.d.ts",
     "dist"
   ],

plugins/events-backend/src/alpha.ts

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2023 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.
+ */
+
+export { eventsPlugin } from './service/EventsPlugin';

plugins/events-backend/src/index.ts

@@ -21,5 +21,4 @@
  */
 
 export { EventsBackend } from './service/EventsBackend';
-export { eventsPlugin } from './service/EventsPlugin';
 export { HttpPostIngressEventPublisher } from './service/http';

plugins/events-backend/src/service/EventsPlugin.test.ts

@@ -21,7 +21,7 @@ import {
   createBackendModule,
 } from '@backstage/backend-plugin-api';
 import { startTestBackend } from '@backstage/backend-test-utils';
-import { eventsExtensionPoint } from '@backstage/plugin-events-node';
+import { eventsExtensionPoint } from '@backstage/plugin-events-node/alpha';
 import {
   TestEventBroker,
   TestEventPublisher,

plugins/events-backend/src/service/EventsPlugin.ts

@@ -19,12 +19,14 @@ import {
   coreServices,
 } from '@backstage/backend-plugin-api';
 import { loggerToWinstonLogger } from '@backstage/backend-common';
+import {
+  eventsExtensionPoint,
+  EventsExtensionPoint,
+} from '@backstage/plugin-events-node/alpha';
 import {
   EventBroker,
   EventPublisher,
   EventSubscriber,
-  eventsExtensionPoint,
-  EventsExtensionPoint,
   HttpPostIngressOptions,
 } from '@backstage/plugin-events-node';
 import { InMemoryEventBroker } from './InMemoryEventBroker';