Windows: Refactor Shell Scripts to Node.js for Cross-Platform Compatibility (#784)

scripts/build_package.js

@@ -0,0 +1,37 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { execSync } from 'child_process';
+import { writeFileSync } from 'fs';
+import { join } from 'path';
+
+if (!process.cwd().includes('packages')) {
+  console.error('must be invoked from a package directory');
+  process.exit(1);
+}
+
+// build typescript files
+execSync('tsc --build', { stdio: 'inherit' });
+
+// copy .{md,json} files
+execSync('node ../../scripts/copy_files.js', { stdio: 'inherit' });
+
+// touch dist/.last_build
+writeFileSync(join(process.cwd(), 'dist', '.last_build'), '');
+process.exit(0);