Update fixtures/flight to webpack 5 (#25115)

* Add new flight fixture

* Move flight dir files

* Enable writeToDisk and distDir

* Move flight2 -> flight

* flight2 -> flight

* Remove unused files

* Remove unused files

* Run prettier

* Ignore eslint cache

Co-authored-by: Sebastian Markbage <[email protected]>

Author: timneutkens

fixtures/flight/.env

@@ -86,8 +86,6 @@ function getClientEnvironment(publicUrl) {
         WDS_SOCKET_PATH: process.env.WDS_SOCKET_PATH,
         WDS_SOCKET_PORT: process.env.WDS_SOCKET_PORT,
         // Whether or not react-refresh is enabled.
-        // react-refresh is not 100% stable at this time,
-        // which is why it's disabled by default.
         // It is defined here so it is available in the webpackHotDevClient.
         FAST_REFRESH: process.env.FAST_REFRESH !== 'false',
       }

fixtures/flight/config/env.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const babelJest = require('babel-jest').default;
+
+const hasJsxRuntime = (() => {
+  if (process.env.DISABLE_NEW_JSX_TRANSFORM === 'true') {
+    return false;
+  }
+
+  try {
+    require.resolve('react/jsx-runtime');
+    return true;
+  } catch (e) {
+    return false;
+  }
+})();
+
+module.exports = babelJest.createTransformer({
+  presets: [
+    [
+      require.resolve('babel-preset-react-app'),
+      {
+        runtime: hasJsxRuntime ? 'automatic' : 'classic',
+      },
+    ],
+  ],
+  babelrc: false,
+  configFile: false,
+});

fixtures/flight/config/jest/babelTransform.js

@@ -21,6 +21,8 @@ const publicUrlOrPath = getPublicUrlOrPath(
   process.env.PUBLIC_URL
 );
 
+const buildPath = process.env.BUILD_PATH || 'build';
+
 const moduleFileExtensions = [
   'web.mjs',
   'mjs',
@@ -52,7 +54,7 @@ const resolveModule = (resolveFn, filePath) => {
 module.exports = {
   dotenv: resolveApp('.env'),
   appPath: resolveApp('.'),
-  appBuild: resolveApp('build'),
+  appBuild: resolveApp(buildPath),
   appPublic: resolveApp('public'),
   appHtml: resolveApp('public/index.html'),
   appIndexJs: resolveModule(resolveApp, 'src/index'),
@@ -64,6 +66,8 @@ module.exports = {
   testsSetup: resolveModule(resolveApp, 'src/setupTests'),
   proxySetup: resolveApp('src/setupProxy.js'),
   appNodeModules: resolveApp('node_modules'),
+  appWebpackCache: resolveApp('node_modules/.cache'),
+  appTsBuildInfoFile: resolveApp('node_modules/.cache/tsconfig.tsbuildinfo'),
   swSrc: resolveModule(resolveApp, 'src/service-worker'),
   publicUrlOrPath,
 };