[libvirt] [PATCH 0/8] Normalization API

[Cole Robinson]

On 09/17/2013 10:46 AM, Michal Privoznik wrote:
> A while ago I've invented this vshCompleteXMLFromDomain() function to increase
> device-detach intelligence. Basically, it took user's XML and tried to find
> matching device in domain's XML. However, it was kind of buggy - finding the
> matching device uses string comparison. This works on text values. It doesn't
> on integer ones (who would expect that). So prior the lookup process, we need
> to normalize the integer values (and whole XML). However, this can't be done on
> the client side, since he has no knowledge which values are integer and which
> are not. Therefore we need a new API.
> 
> Michal Privoznik (8):
>   domain_conf: Introduce virDomainDeviceDefFormat
>   Introduce new virDomainNormalizeXML API
>   remote_driver: Implement virDomainNormalizeXML
>   virsh: Expose virDomainNormalizeXML
>   qemu: Implement vimDomainNormalizeXML
>   domain_conf: Move MAC generation to post parse callback
>   virDomainDeviceDefParse: Make PostParse callback call optional
>   virsh: Resurrect vshCompleteXMLFromDomain
> 

Seems overkill IMO. Do we really need to add an API to facilitate the crappy
interface that is virsh detach-device? Will any other application ever want to
use this API?

Why not allow something like

virsh detach-device --device-number disk:2

Which will remove the second disk device? It's friendly-ish, easy to extend,
and simple to implement.

- Cole