Re: [Qemu-devel] [PATCH v2 3/3] qemu-iotests: Modern shell scripting (use $() instead of ``)

[Eric Blake <eblake@redhat.com>]

On 10/24/18 4:40 AM, Mao Zhongyi wrote:
> Various shell files contain a mix between obsolete ``
> and modern $(); It would be nice to convert to using
> $() everywhere.
> 
> Cc: kwolf@redhat.com
> Cc: mreitz@redhat.com
> Cc: eblake@redhat.com
> 
> Suggested-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
> ---
>   tests/qemu-iotests/check         | 60 ++++++++++++++++----------------
>   tests/qemu-iotests/common.config |  4 +--
>   2 files changed, 32 insertions(+), 32 deletions(-)

Only affects tests/ so safe for 3.1.  I'm happy to take this through my 
NBD queue, since Dan's test addition will also be impacted by this change.

> 
> diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check
> index b37713277d..89ed275988 100755
> --- a/tests/qemu-iotests/check
> +++ b/tests/qemu-iotests/check
> @@ -590,7 +590,7 @@ fi
>   export QEMU_NBD_PROG="$(type -p "$QEMU_NBD_PROG")"
>   
>   if [ -z "$QEMU_VXHS_PROG" ]; then
> -  export QEMU_VXHS_PROG="`set_prog_path qnio_server`"
> +    export QEMU_VXHS_PROG="$(set_prog_path qnio_server)"
>   fi

Interesting indentation change while at it.  But 4 spaces does seem to 
be more consistent.

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org