Automate the download of ReactNativeDependencies

packages/react-native/Package.swift

@@ -344,7 +344,7 @@ let reactRuntimeApple = RNTarget(
   name: .reactRuntimeApple,
   path: "ReactCommon/react/runtime/platform/ios",
   searchPaths: ["ReactCommon", RuntimeExecutorPath, CallInvokerPath, ReactFBReactNativeSpecPath, FBLazyVectorPath],
-  excludedPaths: ["ReactCommon/RCTJscInstance.mm"],
+  excludedPaths: ["ReactCommon/RCTJscInstance.mm", "ReactCommon/metainternal"],
   dependencies: [.reactNativeDependencies, .jsi, .reactPerfLogger, .reactCxxReact, .rctDeprecation, .yoga, .reactRuntime, .reactRCTFabric, .reactCoreModules, .reactTurboModuleCore, .hermesPrebuilt, .reactUtils]
 )
 

packages/react-native/scripts/ios-prebuild.js

@@ -9,6 +9,9 @@
  */
 
 const {prepareHermesArtifactsAsync} = require('./ios-prebuild/hermes');
+const {
+  prepareReactNativeDependenciesArtifactsAsync,
+} = require('./ios-prebuild/reactNativeDependencies');
 const {
   createFolderIfNotExists,
   prebuildLog,
@@ -111,6 +114,8 @@ async function main() {
     // HERMES ARTIFACTS
     await prepareHermesArtifactsAsync(currentVersion, 'debug');
 
+    await prepareReactNativeDependenciesArtifactsAsync(currentVersion, 'debug');
+
     // CODEGEN
     const codegenPath = path.join(root, '.build/codegen');
     createFolderIfNotExists(codegenPath);

packages/react-native/scripts/ios-prebuild/hermes.js

@@ -47,7 +47,13 @@ async function prepareHermesArtifactsAsync(
   // Only check if the artifacts folder exists if we are not using a local tarball
   if (!localPath) {
     // Resolve the version from the environment variable or use the default version
-    const resolvedVersion = process.env.HERMES_VERSION ?? version;
+    let resolvedVersion = process.env.HERMES_VERSION ?? version;
+
+    if (resolvedVersion === 'nightly') {
+      hermesLog('Using latest nightly tarball');
+      const hermesVersion = await getNightlyVersionFromNPM();
+      resolvedVersion = hermesVersion;
+    }
 
     // Check if the Hermes artifacts are already downloaded
     if (
@@ -89,6 +95,23 @@ async function prepareHermesArtifactsAsync(
   return artifactsPath;
 }
 
+async function getNightlyVersionFromNPM() /*: Promise<string> */ {
+  const npmResponse /*: Response */ = await fetch(
+    'https://registry.npmjs.org/react-native/nightly',
+  );
+
+  if (!npmResponse.ok) {
+    throw new Error(
+      `Couldn't get an answer from NPM: ${npmResponse.status} ${npmResponse.statusText}`,
+    );
+  }
+
+  const json = await npmResponse.json();
+  const latestNightly = json.version;
+  hermesLog(`Using version ${latestNightly}`);
+  return latestNightly;
+}
+
 /*::
 type HermesEngineSourceType =
   | 'local_prebuilt_tarball'