From d7b7d2de6e76680dd5bee6301113fcac499e7e6f Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Mon, 25 Oct 2021 21:12:29 +0300
Subject: [PATCH] Pass system STDIN stream to SCons subprocess

---
 platformio/platform/_run.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/platformio/platform/_run.py b/platformio/platform/_run.py
index 73190167..09642689 100644
--- a/platformio/platform/_run.py
+++ b/platformio/platform/_run.py
@@ -137,12 +137,14 @@ class PlatformRunMixin(object):
                     line_callback=self._on_stderr_line,
                     data_callback=lambda data: _write_and_flush(sys.stderr, data),
                 ),
+                stdin=sys.stdin,
             )
 
         return proc.exec_command(
             args,
             stdout=proc.LineBufferedAsyncPipe(line_callback=self._on_stdout_line),
             stderr=proc.LineBufferedAsyncPipe(line_callback=self._on_stderr_line),
+            stdin=sys.stdin,
         )
 
     def _on_stdout_line(self, line):