react-native-test-app/scripts/config-plugins/plugins/withIosBaseMods.mjs

react-native-test-app provides a test app for all supported platforms as a package

// @ts-check
import { createRequire } from "node:module";
import * as path from "node:path";
import { BaseMods } from "../ExpoConfigPlugins.mjs";
import { makeFilePathModifier, makeNullProvider } from "../provider.mjs";

const modifyFilePath = makeFilePathModifier("node_modules/.generated/ios");

const require = createRequire(import.meta.url);
const modifyReactNativeHostFilePath = makeFilePathModifier(
  path.dirname(require.resolve("@rnx-kit/react-native-host/package.json"))
);

const nullProvider = makeNullProvider();

// https://github.com/expo/expo/blob/93cd0503117d5a25f8b80ed7b30ec5bed3a67c24/packages/@expo/config-plugins/src/plugins/withIosBaseMods.ts
const expoProviders = BaseMods.getIosModFileProviders();

/** @type {typeof expoProviders & Record<string, unknown>} */
const defaultProviders = {
  dangerous: expoProviders.dangerous,
  finalized: expoProviders.finalized,
  appDelegate: modifyFilePath(
    expoProviders.appDelegate,
    "ReactTestApp/AppDelegate.swift"
  ),
  expoPlist: nullProvider,
  xcodeproj: modifyFilePath(
    expoProviders.xcodeproj,
    "ReactTestApp.xcodeproj/project.pbxproj"
  ),
  infoPlist: modifyFilePath(expoProviders.infoPlist, "Info.plist"),
  entitlements: modifyFilePath(
    expoProviders.entitlements,
    "ReactTestApp/ReactTestApp.entitlements"
  ),
  podfileProperties: nullProvider,
};

// `react-native-test-app` files
defaultProviders["sceneDelegate"] = modifyFilePath(
  expoProviders.appDelegate,
  "ReactTestApp/SceneDelegate.swift"
);

// `@rnx-kit/react-native-host` files
defaultProviders["reactNativeHost"] = modifyReactNativeHostFilePath(
  expoProviders.appDelegate,
  "cocoa/ReactNativeHost.mm"
);

export function getIosModFileProviders() {
  return defaultProviders;
}