[OE-core] [PATCH v3 14/22] oeqa/oetest: oeSDKTest when run a command redirect env output to null

[Aníbal Limón]

Some tests are failing because the eSDK env load script shows a help
message on the output so redirect this to /dev/null.

There was a discussion with Paul Eggleton [1], he don't want to have env
variables to change the behaviour of what the env script needs to print
so redirect the output in oeSDK.run() method. I didn't agree because
it can hides another messages like error ones and with the variable you
can control what prints or not.

[1] http://lists.openembedded.org/pipermail/openembedded-core/2016-February/116744.html

Signed-off-by: Aníbal Limón <anibal.limon at linux.intel.com>
---
 meta/lib/oeqa/oetest.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/lib/oeqa/oetest.py b/meta/lib/oeqa/oetest.py
index 16705cc..47ea3b2 100644
--- a/meta/lib/oeqa/oetest.py
+++ b/meta/lib/oeqa/oetest.py
@@ -124,7 +124,7 @@ class oeSDKTest(oeTest):
         return False
 
     def _run(self, cmd):
-        return subprocess.check_output(". %s; " % self.tc.sdkenv + cmd, shell=True)
+        return subprocess.check_output(". %s > /dev/null; %s;" % (self.tc.sdkenv, cmd), shell=True)
 
 def getmodule(pos=2):
     # stack returns a list of tuples containg frame information
-- 
2.1.4