obs: lib.run_cmd: set stdin to subprocess.DEVNULL

Don't pass stdin to the programs, as we expect them to run
non-interactively and also don't show the program's output unless -v is
used or the exit code is not 0.

Change-Id: I7e893101c2a3e7b005659ec72aa44fa932b7ccd9

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/obs/lib/__init__.py b/scripts/obs/lib/__init__.py
index 58fe0e4..1ed5ef5 100644
--- a/scripts/obs/lib/__init__.py
+++ b/scripts/obs/lib/__init__.py
@@ -119,9 +119,9 @@ def run_cmd(cmd, check=True, *args, **kwargs):
         print(f"+ {caller}(): {cmd}")
 
     with tempfile.TemporaryFile(encoding="utf8", mode="w+") as output_buf:
-        p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
-                             stderr=subprocess.STDOUT, text=True, bufsize=1,
-                             *args, **kwargs)
+        p = subprocess.Popen(cmd, stdin=subprocess.DEVNULL,
+                             stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+                             text=True, bufsize=1, *args, **kwargs)
 
         while True:
             out = p.stdout.read(1)