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[Qemu-devel] [RFC v2 02/20] qtest.py: Support QTEST_LOG environment vari


From: Eduardo Habkost
Subject: [Qemu-devel] [RFC v2 02/20] qtest.py: Support QTEST_LOG environment variable
Date: Fri, 25 Nov 2016 20:05:38 -0200

qtest logs everything to stderr by default, but we don't want it
to be the default behavior on test cases.

Implement the same behavior of libqtest.c, and redirect the qtest
log to /dev/null by default unless the QTEST_LOG environment
variable is set.

Signed-off-by: Eduardo Habkost <address@hidden>
---
Changes series v1 -> v2:
* (none)
---
 scripts/qtest.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/qtest.py b/scripts/qtest.py
index d5aecb5..5ac2c69 100644
--- a/scripts/qtest.py
+++ b/scripts/qtest.py
@@ -88,8 +88,14 @@ class QEMUQtestMachine(qemu.QEMUMachine):
         self._qtest_path = os.path.join(test_dir, name + "-qtest.sock")
 
     def _base_args(self):
+        if os.getenv('QTEST_LOG'):
+            qtest_log = '/dev/fd/2'
+        else:
+            qtest_log = '/dev/null'
+
         args = super(QEMUQtestMachine, self)._base_args()
         args.extend(['-qtest', 'unix:path=' + self._qtest_path,
+                     '-qtest-log', qtest_log,
                      '-machine', 'accel=qtest'])
         return args
 
-- 
2.7.4




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