From 94dee63a4181cf778bdedbde8327e3cd1f08d4b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Krist=C3=B3f=20T=C3=B3th?= <kristof.toth@avatao.com>
Date: Mon, 13 May 2019 14:52:17 +0200
Subject: [PATCH] Improve CommandEventHandler subprocess failure error message

---
 lib/tfw/components/pipe_io_event_handler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/tfw/components/pipe_io_event_handler.py b/lib/tfw/components/pipe_io_event_handler.py
index c0f54aa..d0eda41 100644
--- a/lib/tfw/components/pipe_io_event_handler.py
+++ b/lib/tfw/components/pipe_io_event_handler.py
@@ -129,7 +129,7 @@ class CommandEventHandler(PipeIOEventHandler):
         return_code = self._proc.wait()
         if return_code != 0:
             _, stderr = self._proc.communicate()
-            raise RuntimeError(f'Subprocess failed: {stderr.decode()}')
+            raise RuntimeError(f'Subprocess failed ({return_code})! Stderr:\n{stderr.decode()}')
 
     def cleanup(self):
         with suppress(ProcessLookupError):