From 1a167b2ea5ef10d0bea66e227bd2148d4934f5b5 Mon Sep 17 00:00:00 2001
From: Allen Hutchison <adh@google.com>
Date: Mon, 21 Apr 2025 17:41:44 -0700
Subject: Piped input (#104)

* New method for handling stdin. Bypass Ink, and output to stdout. Makes the CLI work like a typical Unix application when called with piped input.

* Fixing a few post-merge errors.

* Format code.

* Clean up lint and format errors.
---
 packages/cli/src/utils/readStdin.ts | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 packages/cli/src/utils/readStdin.ts

(limited to 'packages/cli/src/utils')

diff --git a/packages/cli/src/utils/readStdin.ts b/packages/cli/src/utils/readStdin.ts
new file mode 100644
index 00000000..d890aa2c
--- /dev/null
+++ b/packages/cli/src/utils/readStdin.ts
@@ -0,0 +1,27 @@
+/**
+ * @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');
+
+    process.stdin.on('readable', () => {
+      let chunk;
+      while ((chunk = process.stdin.read()) !== null) {
+        data += chunk;
+      }
+    });
+
+    process.stdin.on('end', () => {
+      resolve(data);
+    });
+
+    process.stdin.on('error', (err) => {
+      reject(err);
+    });
+  });
+}
-- 
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