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qemu-iotests: refine common.config

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Replacing awk with sed, then it's easier to read.
Replacing "[ ! -z "$default_alias_machine" ]" with
"[[ $default_alias_machine ]]", then it's slightly shorter.

Reviewed-by: Max Reitz <mreitz@redhat.com>
Suggested-By: Sascha Silbe <silbe@linux.vnet.ibm.com>
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Reviewed-by: Eric Blake   <eblake@redhat.com>
Signed-off-by: Bo Tu <tubo@linux.vnet.ibm.com>
Message-id: 1449136891-26850-2-git-send-email-tubo@linux.vnet.ibm.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Bo Tu 2015-12-03 18:01:29 +08:00 committed by Max Reitz
parent ba88944495
commit 8a7607c2e2
1 changed files with 4 additions and 5 deletions
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9
tests/qemu-iotests/common.config
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@ -154,11 +154,10 @@ export QEMU_IMG=_qemu_img_wrapper
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_machine=$($QEMU -machine help | sed -n '/(default)/ s/ .*//p')
default_alias_machine=$($QEMU -machine help | \
sed -n "/(alias of $default_machine)/ { s/ .*//p; q; }")
if [[ "$default_alias_machine" ]]; then
default_machine="$default_alias_machine"
fi