[Qemu-devel] [PATCH v1 1/4] qemu-iotests: refine common.config

[Bo Tu <tubo@linux.vnet.ibm.com>]

Be easier to read, and be slightly shorter.

Suggested-By: Sascha Silbe <silbe@linux.vnet.ibm.com>
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Signed-off-by: Bo Tu <tubo@linux.vnet.ibm.com>
---
 tests/qemu-iotests/common.config | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tests/qemu-iotests/common.config b/tests/qemu-iotests/common.config
index 596bb2b..0a165e8 100644
--- a/tests/qemu-iotests/common.config
+++ b/tests/qemu-iotests/common.config
@@ -129,10 +129,9 @@ export QEMU_IO=_qemu_io_wrapper
 export QEMU_NBD=_qemu_nbd_wrapper
 
 default_machine=$($QEMU -machine \? | awk '/(default)/{print $1}')
-default_alias_machine=$($QEMU -machine \? |\
-    awk -v var_default_machine="$default_machine"\)\
-    '{if ($(NF-2)=="(alias"&&$(NF-1)=="of"&&$(NF)==var_default_machine){print $1}}')
-if [ ! -z "$default_alias_machine" ]; then
+default_alias_machine=$($QEMU -machine \? \
+    | grep -F "(alias of ${default_machine})" |cut -d ' ' -f 1 |head -n 1)
+if [ -n "$default_alias_machine" ]; then
     default_machine="$default_alias_machine"
 fi
 
-- 
2.3.0