Fix bundled extensions not being loaded (#7359)

* Fix bundled extensions not being loaded

- Also show that this fixes it by added an example bundled
  extension to 'open-lens'

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix build

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Add explanatory comment for inline require

Signed-off-by: Sebastian Malton <sebastian@malton.name>

---------

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/technical-features/application/agnostic/.eslintrc.js

@@ -1,6 +0,0 @@
-module.exports = {
-  extends: "@k8slens/eslint-config/eslint",
-  parserOptions: {
-    project: "./tsconfig.json",
-  },
-};

packages/technical-features/application/agnostic/.eslintrc.json

@@ -0,0 +1,6 @@
+{
+  "extends": "@k8slens/eslint-config/eslint",
+  "parserOptions": {
+    "project": "./tsconfig.json"
+  }
+}

packages/technical-features/application/legacy-extensions/.eslintrc.json

@@ -0,0 +1,6 @@
+{
+  "extends": "@k8slens/eslint-config/eslint",
+  "parserOptions": {
+    "project": "./tsconfig.json"
+  }
+}

packages/technical-features/application/legacy-extensions/README.md

@@ -0,0 +1,5 @@
+# @k8slens/legacy-extensions
+
+This package contains stuff related to creating Lens-applications.
+
+Namely, this package contains information about extensions and bundled extensions of the v1 API.

packages/technical-features/application/legacy-extensions/index.ts

@@ -0,0 +1,2 @@
+export * from "./src/bundled-extension";
+export * from "./src/lens-extension";

packages/technical-features/application/legacy-extensions/jest.config.js

@@ -0,0 +1 @@
+module.exports = require("@k8slens/jest").monorepoPackageConfig(__dirname).configForNode;

packages/technical-features/application/legacy-extensions/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "@k8slens/legacy-extensions",
+  "private": false,
+  "version": "1.0.0-alpha.0",
+  "description": "Package for Lens extensions using the v1 API",
+  "type": "commonjs",
+  "files": [
+    "dist"
+  ],
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lensapp/lens.git"
+  },
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "author": {
+    "name": "OpenLens Authors",
+    "email": "info@k8slens.dev"
+  },
+  "license": "MIT",
+  "homepage": "https://github.com/lensapp/lens",
+  "scripts": {
+    "build": "webpack",
+    "dev": "webpack --mode=development --watch",
+    "test": "jest --coverage --runInBand",
+    "lint": "lens-lint",
+    "lint:fix": "lens-lint --fix"
+  },
+  "peerDependencies": {
+    "@ogre-tools/injectable": "^15.1.2"
+  },
+  "devDependencies": {
+    "@k8slens/eslint-config": "6.5.0-alpha.1"
+  }
+}

packages/technical-features/application/legacy-extensions/src/bundled-extension.ts

@@ -0,0 +1,16 @@
+import { getInjectionToken } from "@ogre-tools/injectable";
+import type {
+  LensExtensionConstructor,
+  LensExtensionManifest,
+} from "./lens-extension";
+
+export interface BundledExtension {
+  readonly manifest: LensExtensionManifest;
+  main: () => LensExtensionConstructor | null;
+  renderer: () => LensExtensionConstructor | null;
+}
+
+export const bundledExtensionInjectionToken =
+  getInjectionToken<BundledExtension>({
+    id: "bundled-extension-path",
+  });

packages/technical-features/application/legacy-extensions/src/lens-extension.ts

@@ -0,0 +1,63 @@
+export type LensExtensionId = string;
+export type LensExtensionConstructor = new (
+  ext: InstalledExtension
+) => LegacyLensExtension;
+
+export interface InstalledExtension {
+  id: LensExtensionId;
+
+  readonly manifest: LensExtensionManifest;
+
+  // Absolute path to the non-symlinked source folder,
+  // e.g. "/Users/user/.k8slens/extensions/helloworld"
+  readonly absolutePath: string;
+
+  /**
+   * Absolute to the symlinked package.json file
+   */
+  readonly manifestPath: string;
+  readonly isBundled: boolean;
+  readonly isCompatible: boolean;
+  isEnabled: boolean;
+}
+
+export interface LegacyLensExtension {
+  readonly id: LensExtensionId;
+  readonly manifest: LensExtensionManifest;
+  readonly manifestPath: string;
+  readonly isBundled: boolean;
+  readonly sanitizedExtensionId: string;
+  readonly name: string;
+  readonly version: string;
+  readonly description: string | undefined;
+  readonly storeName: string;
+
+  getExtensionFileFolder(): Promise<string>;
+  enable(): Promise<void>;
+  disable(): Promise<void>;
+  activate(): Promise<void>;
+}
+
+export interface LensExtensionManifest {
+  name: string;
+  version: string;
+  description?: string;
+
+  main?: string; // path to %ext/dist/main.js
+  renderer?: string; // path to %ext/dist/renderer.js
+  /**
+   * Supported Lens version engine by extension could be defined in `manifest.engines.lens`
+   * Only MAJOR.MINOR version is taken in consideration.
+   */
+  engines: {
+    lens: string; // "semver"-package format
+    npm?: string;
+    node?: string;
+  };
+
+  /**
+   * Specify extension name used for persisting data.
+   * Useful if extension is renamed but the data should not be lost.
+   */
+  storeName?: string;
+}

packages/technical-features/application/legacy-extensions/tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "extends": "@k8slens/typescript/config/base.json",
+  "include": ["**/*.ts"]
+}

packages/technical-features/application/legacy-extensions/webpack.config.js

@@ -0,0 +1 @@
+module.exports = require("@k8slens/webpack").configForNode;