On Fri, May 13, 2011 at 05:18:27PM -0600, Eric Blake wrote:
> On 05/13/2011 03:16 AM, Daniel P. Berrange wrote:
> > On Thu, May 12, 2011 at 06:29:12PM +0200, Michal Privoznik wrote:
> >> +static const vshCmdOptDef opts_screenshot[] = {
> >> + {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
> >> + {"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("where to store the screenshot")},
> >> + {"screen", VSH_OT_INT, 0, N_("ID of a screen to take screenshot of")},
> >> + {NULL, 0, 0, NULL}
> >> +};
> >> +
>
> > I think it would be better if 'screenID' was a flag instead of a
> > positional parameter, eg
> >
> > screenshot --screen 1 myguest imagefile.png
>
> But virsh _already_ handles all named arguments in any order. That is,
>
> screenshot --screen 1 myguest imagefile.png
> screenshot myguest imagefile.png 1
>
> are identical, at least with the above opts_screenshot (thanks to commit
> b9973f5).
I don't see how that could work, if you want to make filename
optional. Since if you have
screenshot myguest 1
it can't determine whether '1' is a screen number or filename. Thus
we have to use --screen for this
Daniel
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