Simply return None if no git repo available

This prevents an error when ReBench is used in a project without git repo, or, if the repo is corrupt. Signed-off-by: Stefan Marr <git@stefan-marr.de>
smarr · Apr 10, 2020 · 526463e · 526463e
1 parent 81902da
commit 526463e
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/rebench/environment.py b/rebench/environment.py
@@ -21,7 +21,10 @@ def _encode_str(out):
 
 
 def _exec(cmd):
-    out = subprocess.check_output(cmd)
+    try:
+        out = subprocess.check_output(cmd)
+    except subprocess.CalledProcessError:
+        return None
     return _encode_str(out)