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Re: [Qemu-devel] For all targets and machine types: "start to monitor" s
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test |
Date: |
Tue, 07 Aug 2012 14:37:12 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0 |
On 08/07/2012 02:30 PM, Markus Armbruster wrote:
> Peter Maydell <address@hidden> writes:
>
>> On 7 August 2012 20:55, Markus Armbruster <address@hidden> wrote:
>>> Anthony Liguori <address@hidden> writes:
>>>> Perhaps we could add a QEMUMachine parameter that indicates that the
>>>> machine doesn't start without special options.
>>>
>>> Recommend to make it a string that lists the mandatory options.
>>
>> How are you going to say "need either option foo or option bar" ? I'm
>> pretty sure we have some of those (eg "either you need to pass a flash
>> image or a kernel").
>
> Yes, we do.
>
> The string should be suitable for inserting into -help.
Convention in other programs' -help output is to express a mandatory
selection from mutually exclusive options using {}, as in:
{ -foo | -bar }
If both options can be used together, but cannot both be omitted, then
this style works:
{ -foo [ -bar ] | -bar }
Mutually exclusive options, but where omission is okay, would then be:
[ { -foo | -bar } ]
or even this variant, to express the default when both are omitted:
{ -foo | [ -bar ] }
Using strings with metasyntax like that should be usable in qemu -help.
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Markus Armbruster, 2012/08/07
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Anthony Liguori, 2012/08/07
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Markus Armbruster, 2012/08/07
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Peter Maydell, 2012/08/07
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Markus Armbruster, 2012/08/07
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test,
Eric Blake <=
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Markus Armbruster, 2012/08/08
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Peter Maydell, 2012/08/08
- Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Markus Armbruster, 2012/08/08
Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Peter Maydell, 2012/08/07
Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Andreas Färber, 2012/08/07
Re: [Qemu-devel] For all targets and machine types: "start to monitor" smoke test, Blue Swirl, 2012/08/07