backend-common: migrate to use exports

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

packages/backend-common/alpha-api-report.md

@@ -0,0 +1,32 @@
+## API Report File for "@backstage/backend-common"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+import { Duration } from 'luxon';
+
+// @alpha
+export interface Context {
+  readonly abortSignal: AbortSignal;
+  readonly deadline: Date | undefined;
+  value<T = unknown>(key: string): T | undefined;
+}
+
+// @alpha
+export class Contexts {
+  static root(): Context;
+  static withAbort(
+    parentCtx: Context,
+    source: AbortController | AbortSignal,
+  ): Context;
+  static withTimeoutDuration(parentCtx: Context, timeout: Duration): Context;
+  static withTimeoutMillis(parentCtx: Context, timeout: number): Context;
+  static withValue(
+    parentCtx: Context,
+    key: string,
+    value: unknown | ((previous: unknown | undefined) => unknown),
+  ): Context;
+}
+
+// (No @packageDocumentation comment for this package)
+```

packages/backend-common/api-report.md

@@ -20,7 +20,6 @@ import { Config } from '@backstage/config';
 import { ConfigService } from '@backstage/backend-plugin-api';
 import cors from 'cors';
 import Docker from 'dockerode';
-import { Duration } from 'luxon';
 import { ErrorRequestHandler } from 'express';
 import express from 'express';
 import { GerritIntegration } from '@backstage/integration';
@@ -211,29 +210,6 @@ export interface ContainerRunner {
   runContainer(opts: RunContainerOptions): Promise<void>;
 }
 
-// @alpha
-export interface Context {
-  readonly abortSignal: AbortSignal;
-  readonly deadline: Date | undefined;
-  value<T = unknown>(key: string): T | undefined;
-}
-
-// @alpha
-export class Contexts {
-  static root(): Context;
-  static withAbort(
-    parentCtx: Context,
-    source: AbortController | AbortSignal,
-  ): Context;
-  static withTimeoutDuration(parentCtx: Context, timeout: Duration): Context;
-  static withTimeoutMillis(parentCtx: Context, timeout: number): Context;
-  static withValue(
-    parentCtx: Context,
-    key: string,
-    value: unknown | ((previous: unknown | undefined) => unknown),
-  ): Context;
-}
-
 // @public
 export function createDatabaseClient(
   dbConfig: Config,

packages/backend-common/package.json

@@ -5,10 +5,21 @@
   "main": "src/index.ts",
   "types": "src/index.ts",
   "publishConfig": {
-    "access": "public",
-    "main": "dist/index.cjs.js",
-    "types": "dist/index.d.ts",
-    "alphaTypes": "dist/index.alpha.d.ts"
+    "access": "public"
+  },
+  "exports": {
+    ".": "./src/index.ts",
+    "./alpha": "./src/alpha.ts"
+  },
+  "typesVersions": {
+    "*": {
+      "*": [
+        "src/index.ts"
+      ],
+      "alpha": [
+        "src/alpha.ts"
+      ]
+    }
   },
   "backstage": {
     "role": "node-library"
@@ -24,7 +35,7 @@
   ],
   "license": "Apache-2.0",
   "scripts": {
-    "build": "backstage-cli package build --experimental-type-build",
+    "build": "backstage-cli package build",
     "lint": "backstage-cli package lint",
     "test": "backstage-cli package test",
     "prepack": "backstage-cli package prepack",

packages/backend-common/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 * from './context';

packages/backend-common/src/index.ts

@@ -24,7 +24,6 @@ export { legacyPlugin, makeLegacyPlugin } from './legacy';
 export type { LegacyCreateRouter } from './legacy';
 export * from './cache';
 export { loadBackendConfig } from './config';
-export * from './context';
 export * from './database';
 export * from './discovery';
 export * from './hot';