Fix issue where TypeScript errors in scripts/ folder weren't picked up

Summary: This diff fixes an issue where the `scripts` folder wasn't automatically type checked by TypeScript, and as a result `yarn flipper-server` was broken atm.

Reviewed By: nikoant

Differential Revision: D33348825

fbshipit-source-id: 059a834cacb881d45ae4b0933af3f1feabb90182

desktop/scripts/build-utils.ts

@@ -36,7 +36,6 @@ import {
   serverDir,
   rootDir,
   browserUiDir,
-  serverStaticDir,
 } from './paths';
 import pFilter from 'p-filter';
 import child from 'child_process';

desktop/scripts/jest-setup-after.ts

@@ -14,7 +14,7 @@ import {cleanup} from '@testing-library/react';
 import {resolve} from 'path';
 import os from 'os';
 
-(window as any).FlipperRenderHostInstance = createStubRenderHost();
+(global as any).FlipperRenderHostInstance = createStubRenderHost();
 
 import {TestUtils} from 'flipper-plugin';
 import {
@@ -53,7 +53,7 @@ if (!test) {
 
 beforeEach(() => {
   // Fresh mock flipperServer for every test
-  (window as any).FlipperRenderHostInstance = createStubRenderHost();
+  (global as any).FlipperRenderHostInstance = createStubRenderHost();
 });
 
 afterEach(cleanup);
@@ -77,10 +77,10 @@ Object.defineProperty(global, 'performance', {
   },
 });
 
-global.PerformanceObserver = PerformanceObserver;
+(global as any).PerformanceObserver = PerformanceObserver;
 
 // https://jestjs.io/docs/manual-mocks#mocking-methods-which-are-not-implemented-in-jsdom
-Object.defineProperty(window, 'matchMedia', {
+Object.defineProperty(global, 'matchMedia', {
   writable: true,
   value: jest.fn().mockImplementation((query) => ({
     matches: false,

desktop/scripts/jest-setup.ts

@@ -9,7 +9,7 @@
 
 // import/no-unresolved complains, although it is a perfectly fine import
 // eslint-disable-next-line
-global.fetch = require('jest-fetch-mock');
+(global as any).fetch = require('jest-fetch-mock');
 
 // @ts-ignore
 global.electronRequire = require;

desktop/scripts/start-dev-server.ts

@@ -22,6 +22,7 @@ import fs from 'fs-extra';
 import {hostname} from 'os';
 import {compileMain, prepareDefaultPlugins} from './build-utils';
 import Watchman from './watchman';
+// @ts-ignore no typings for metro
 import Metro from 'metro';
 import {staticDir, babelTransformationsDir, rootDir} from './paths';
 import isFB from './isFB';

desktop/scripts/start-flipper-server-dev.ts

@@ -16,11 +16,9 @@ import {
   prepareDefaultPlugins,
 } from './build-utils';
 import Watchman from './watchman';
-import {serverStaticDir} from './paths';
 import isFB from './isFB';
 import yargs from 'yargs';
 import ensurePluginFoldersWatchable from './ensurePluginFoldersWatchable';
-import {remove} from 'fs-extra';
 
 const argv = yargs
   .usage('yarn flipper-server [args]')
@@ -179,8 +177,6 @@ async function startWatchChanges() {
 }
 
 (async () => {
-  await remove(serverStaticDir);
-
   if (dotenv && dotenv.parsed) {
     console.log('✅  Loaded env vars from .env file: ', dotenv.parsed);
   }

desktop/scripts/tsconfig.json

@@ -5,7 +5,8 @@
     "rootDir": ".",
     "lib": ["ES2019"],
     "noEmit": true,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "types": ["jest"]
   },
   "references": [
     {