pre-release commit

packages/cli/src/utils/readStdin.ts

@@ -0,0 +1,39 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export async function readStdin(): Promise<string> {
+  return new Promise((resolve, reject) => {
+    let data = '';
+    process.stdin.setEncoding('utf8');
+
+    const onReadable = () => {
+      let chunk;
+      while ((chunk = process.stdin.read()) !== null) {
+        data += chunk;
+      }
+    };
+
+    const onEnd = () => {
+      cleanup();
+      resolve(data);
+    };
+
+    const onError = (err: Error) => {
+      cleanup();
+      reject(err);
+    };
+
+    const cleanup = () => {
+      process.stdin.removeListener('readable', onReadable);
+      process.stdin.removeListener('end', onEnd);
+      process.stdin.removeListener('error', onError);
+    };
+
+    process.stdin.on('readable', onReadable);
+    process.stdin.on('end', onEnd);
+    process.stdin.on('error', onError);
+  });
+}