feat(babel): rewrite babel-preset-expo to use TypeScript

packages/babel-preset-expo/.eslintrc.js

@@ -0,0 +1,2 @@
+// @generated by expo-module-scripts
+module.exports = require('expo-module-scripts/eslintrc.base.js');

packages/babel-preset-expo/.npmignore

@@ -1 +1,11 @@
-__tests__/
+# @generated by expo-module-scripts
+
+# Exclude all top-level hidden directories by convention
+/.*/
+
+__mocks__
+__tests__
+
+/babel.config.js
+/android/src/androidTest/
+/android/src/test/

packages/babel-preset-expo/CHANGELOG.md

@@ -4,12 +4,17 @@
 
 ### 🛠 Breaking changes
 
+- Remove experimental native Webpack support. ([#24328](https://github.com/expo/expo/pull/24328) by [@EvanBacon](https://github.com/EvanBacon))
+
 ### 🎉 New features
 
 ### 🐛 Bug fixes
 
 ### 💡 Others
 
+- Drop warning for invalid property `useTransformReactJsxExperimental`. ([#24328](https://github.com/expo/expo/pull/24328) by [@EvanBacon](https://github.com/EvanBacon))
+- Re-write in TypeScript. ([#24328](https://github.com/expo/expo/pull/24328) by [@EvanBacon](https://github.com/EvanBacon))
+
 ## 9.6.2 — 2023-09-04
 
 _This version does not introduce any user-facing changes._

packages/babel-preset-expo/babel.config.js

@@ -0,0 +1,11 @@
+module.exports = function (api) {
+  api.cache(true);
+  return {
+    // Only transpile our source code
+    include(filename) {
+      // Ignore tests and the `unknown` name used in tests
+      return !filename.match(/samples/) && filename.match(/src[\//](.*)\.tsx?/);
+    },
+    presets: ['@expo/babel-preset-cli'],
+  };
+};

packages/babel-preset-expo/jest.config.js

@@ -0,0 +1,10 @@
+const path = require('path');
+
+module.exports = {
+  testEnvironment: 'node',
+  testRegex: '/__tests__/.*(test|spec)\\.[jt]sx?$',
+  watchPlugins: ['jest-watch-typeahead/filename', 'jest-watch-typeahead/testname'],
+  clearMocks: true,
+  rootDir: path.resolve(__dirname),
+  displayName: require('./package').name,
+};

packages/babel-preset-expo/lazy-imports-blacklist.js

@@ -3,4 +3,4 @@
  */
 'use strict';
 
-module.exports = new Set(['expo', 'expo-asset', 'expo-task-manager']);
+module.exports = require('./build/lazyImports').lazyImports;

packages/babel-preset-expo/package.json

@@ -2,16 +2,20 @@
   "name": "babel-preset-expo",
   "version": "9.6.2",
   "description": "The Babel preset for Expo projects",
-  "main": "index.js",
+  "main": "build/index.js",
   "files": [
-    "index.js",
-    "lazy-imports-blacklist.js",
-    "plugins"
+    "build",
+    "lazy-imports-blacklist.js"
   ],
+
   "scripts": {
-    "jest": "jest",
-    "lint": "eslint .",
-    "test": "jest --watch"
+    "build": "expo-module build",
+    "clean": "expo-module clean",
+    "lint": "expo-module lint",
+    "test": "expo-module test",
+    "prepare": "expo-module prepare",
+    "prepublishOnly": "expo-module prepublishOnly",
+    "expo-module": "expo-module"
   },
   "repository": {
     "type": "git",
@@ -37,13 +41,6 @@
   "eslintConfig": {
     "extends": "universe/node"
   },
-  "jest": {
-    "testEnvironment": "node",
-    "testPathIgnorePatterns": [
-      "<rootDir>/node_modules/",
-      "<rootDir>/__tests__/samples/"
-    ]
-  },
   "dependencies": {
     "@babel/plugin-proposal-decorators": "^7.12.9",
     "@babel/plugin-proposal-export-namespace-from": "^7.18.9",