move shared package to cli

packages/cli/src/utils/stdin.ts

@@ -0,0 +1,25 @@
+export function getStdin(timeout: number = 10): Promise<string> {
+  return new Promise<string>((resolve, reject) => {
+    // Store the data from stdin in a buffer
+    let buffer = ''
+    let t: NodeJS.Timeout
+
+    const dataHandler = (d: Buffer) => (buffer += d.toString())
+    const endHandler = () => {
+      clearTimeout(t)
+      resolve(buffer.trim())
+    }
+
+    // Stop listening for data after the timeout, otherwise hangs indefinitely
+    t = setTimeout(() => {
+      process.stdin.removeListener('data', dataHandler)
+      process.stdin.removeListener('end', endHandler)
+      process.stdin.pause()
+      resolve('')
+    }, timeout)
+
+    process.stdin.on('error', reject)
+    process.stdin.on('data', dataHandler)
+    process.stdin.on('end', endHandler)
+  })
+}