[Qemu-devel] [PATCH v3 10/18] iotests: handle -f argument correctly for qemu_io_silent

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Correctly rewrite default argument. After the patch, the function can
be used for other (not only default test-chosen) image format.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 tests/qemu-iotests/iotests.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 4e67fbbe96..bc0b8851bd 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -136,7 +136,12 @@ def qemu_io(*args):
 
 def qemu_io_silent(*args):
     '''Run qemu-io and return the exit code, suppressing stdout'''
-    args = qemu_io_args + list(args)
+    if '-f' in qemu_io_args and '-f' in args:
+        ind = qemu_io_args.index('-f')
+        args = qemu_io_args[:ind] + qemu_io_args[ind+2:] + list(args)
+    else:
+        args = qemu_io_args + list(args)
+
     exitcode = subprocess.call(args, stdout=open('/dev/null', 'w'))
     if exitcode < 0:
         sys.stderr.write('qemu-io received signal %i: %s\n' %
-- 
2.18.0