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Re: [Qemu-devel] [PATCH v2 4/5] block: qemu-iotests - fix image cleanup
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH v2 4/5] block: qemu-iotests - fix image cleanup when using spaced pathnames |
Date: |
Fri, 11 Apr 2014 08:59:32 +0800 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Thu, 04/10 14:09, Jeff Cody wrote:
> On Thu, Apr 10, 2014 at 08:48:10AM -0600, Eric Blake wrote:
> > On 04/10/2014 08:43 AM, Eric Blake wrote:
> > > On 04/10/2014 06:53 AM, Jeff Cody wrote:
> > >
> > >>>> +++ b/tests/qemu-iotests/common.rc
> > >>>> @@ -178,10 +178,10 @@ _rm_test_img()
> > >>>> local img=$1
> > >>>
> > >>> Since we are quoting $img, should we quote $1 as well?
> > >>>
> >
> > >
> > > http://austingroupbugs.net/view.php?id=351
> > >
> > > But even with the notion of an assignment-context argument added to a
> > > future version of POSIX, the reality is that given the present standard,
> > > it's safer to either use "" to ensure no word splitting:
> >
> > Well, if you were trying to be portable to multiple shells, then it
> > would matter. But as this script is explicitly being run under
> > /bin/bash, and as bash already has support for declaration utilities
> > where local is one such utility, your script as written is safe without
> > "" in the arguments to local. So I'm fine whether you choose to change
> > it in a respin or to leave it as written in this version.
Thanks for the thorough explanation, Eric!
>
> Hi Eric,
>
> Thanks - I consulted specifically with just the bash documentation, so
> you are right, this script (and likely most of qemu-iotests) is
> bash-only.
>
> That particular line is context as well, and not an actual change - so
> while it may be a good idea to quote it to make the scripts closer to
> posix-only, my guess is there are quite a few similar lines throughout
> all the qemu-iotests scripts.
>
> Given that, if we address that it would probably make sense to do that
> in a bash->posix conversion series for all the scripts (likely a low
> priority, however).
>
OK :)
Thanks,
Fam
- Re: [Qemu-devel] [PATCH v2 3/5] block: qemu-iotests - test for live migration, (continued)
[Qemu-devel] [PATCH v2 5/5] block: qemu-iotests: make test 019 and 086 work with spaced pathnames, Jeff Cody, 2014/04/09