Fix RNTester Podfile.lock update in release workflow (facebook#43513)

Summary:
Pull Request resolved: facebook#43513

The previous `update_podfile_lock.sh` script would fail as executed from the repo root (could not locate RNTester dir). Delete this and replace with direct calls in `prepare-package-for-release.js`, which will fail script on error.

 {F1469216632}

Changelog: [Internal]

Reviewed By: cortinico

Differential Revision: D54949214

fbshipit-source-id: 4f032069e803e84f835c279d01332d16787dfafc

Author: huntie

scripts/consts.js

@@ -36,9 +36,19 @@ const REACT_NATIVE_PACKAGE_DIR /*: string */ = path.join(
   'react-native',
 );
 
+/**
+ * The absolute path to the rn-tester package.
+ */
+const RN_TESTER_DIR /*: string */ = path.join(
+  REPO_ROOT,
+  'packages',
+  'rn-tester',
+);
+
 module.exports = {
   PACKAGES_DIR,
   REACT_NATIVE_PACKAGE_DIR,
   REPO_ROOT,
+  RN_TESTER_DIR,
   SCRIPTS_DIR,
 };

scripts/releases-ci/prepare-package-for-release.js

@@ -11,12 +11,14 @@
 
 'use strict';
 
+const {RN_TESTER_DIR} = require('../consts');
 const {setReactNativeVersion} = require('../releases/set-rn-version');
 const {failIfTagExists} = require('../releases/utils/release-utils');
 const {
   isReleaseBranch,
   parseVersion,
 } = require('../releases/utils/version-utils');
+const {execSync} = require('child_process');
 const {echo, exec, exit} = require('shelljs');
 const yargs = require('yargs');
 
@@ -95,11 +97,21 @@ async function main() {
   }
 
   // Release builds should commit the version bumps, and create tags.
-  echo('Updating RNTester Podfile.lock...');
-  if (exec('source scripts/update_podfile_lock.sh && update_pods').code) {
-    echo('Failed to update RNTester Podfile.lock.');
-    echo('Fix the issue, revert and try again.');
-    exit(1);
+  try {
+    console.log('Updating RNTester Podfile.lock');
+    execSync(
+      `
+        bundle install;
+        bundle exec pod install;
+      `,
+      {cwd: RN_TESTER_DIR, stdio: 'inherit'},
+    );
+  } catch (e) {
+    console.error('Failed to update RNTester Podfile.lock.');
+    console.error('Fix the issue, revert and try again.');
+
+    process.exitCode = 1;
+    return;
   }
 
   echo(`Local checkout has been prepared for release version ${version}.`);