feat: use node to call rnccli codegen

packages/react-native-builder-bob/src/targets/codegen.ts

@@ -1,10 +1,10 @@
 import kleur from 'kleur';
 import type { Input } from '../types';
 import { patchCodegen } from '../utils/patchCodegen';
-import { spawn } from '../utils/spawn';
 import fs from 'fs-extra';
 import path from 'path';
 import del from 'del';
+import { runRNCCli } from '../utils/runRNCCli';
 
 type Options = Input;
 
@@ -33,11 +33,9 @@ export default async function build({ root, report }: Options) {
   }
 
   try {
-    await spawn('npx', ['@react-native-community/cli', 'codegen'], {
-      stdio: 'ignore',
-    });
+    await runRNCCli(['codegen']);
 
-    patchCodegen(root, packageJson, report);
+    await patchCodegen(root, packageJson, report);
 
     report.success('Generated native code with codegen');
   } catch (e: unknown) {

packages/react-native-builder-bob/src/utils/runRNCCli.ts

@@ -0,0 +1,27 @@
+import { type SpawnOptions } from 'node:child_process';
+import { spawn } from './spawn';
+import path from 'node:path';
+
+const RNC_CLI_BINARY_PATH = path.resolve(
+  process.cwd(), // We are always expected to run in the library
+  'node_modules',
+  '.bin',
+  'rnc-cli'
+);
+
+// This is a special case for calling bob from the XCode scripts
+// XCode scripts don't have the node binary properly set
+// We expose an env value for node instead.
+const NODE_BINARY = process.env['NODE_BINARY'] || 'node';
+
+/**
+ * Runs the React Native Community CLI with the specified arguments
+ */
+export async function runRNCCli(
+  args: string[],
+  options: SpawnOptions = {
+    stdio: 'ignore',
+  }
+) {
+  return await spawn(NODE_BINARY, [RNC_CLI_BINARY_PATH, ...args], options);
+}