[PATCH v2 7/7] Config: redirect git stderr to /dev/null

[Ondrej Lichtner]

From: Ondrej Lichtner <olichtne(a)redhat.com&gt;

When trying to get the git revision fails it prints out a 'fatal: ...'
error message to stderr. Since we don't care about how the git command
fails we can redirect the error to /dev/null so that it's not mixed in
with normal lnst output.

Signed-off-by: Ondrej Lichtner <olichtne(a)redhat.com&gt;
---
 lnst/Common/Config.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lnst/Common/Config.py b/lnst/Common/Config.py
index 0b8b03e..5362da1 100644
--- a/lnst/Common/Config.py
+++ b/lnst/Common/Config.py
@@ -39,7 +39,9 @@ class Config():
             abspath = os.path.abspath(__file__)
             dname = os.path.dirname(abspath)
             os.chdir(dname)
-            head = subprocess.check_output(['git', 'rev-parse',
'HEAD']).strip()
+            with open(os.devnull, 'w') as null:
+                head = subprocess.check_output(['git', 'rev-parse',
'HEAD'],
+                                               stderr=null).strip()
             return head
         except subprocess.CalledProcessError:
             return LNSTMajorVersion
-- 
2.9.0