[fedora-virt] Editing options of virsh XML files: virsh-xpath

[Ján ONDREJ (SAL)]

> > > There's /usr/bin/xpath but that's for querying only it seems. Would be pretty
> > > straightforward to make one for setting arbitrary data.
> >
> > OK, I wrote one. Please look at this:
> >
> > http://www.salstar.sk/pub/salpack/usr/sbin/virsh-pyquery
> >
> > This script uses pyquery, jquery based selector syntax. If you like jquery
> > selectors, then you will like it. It can add/delete/remove/update entities
> > or attributes.
>
> Very cool! Something like that should be implemented as a virsh subcommand
> (but it would likely use xpath syntax since that's what libvirt uses internally).

OK, try to look at xpath version with some enhancements:

http://www.salstar.sk/pub/salpack/usr/sbin/virsh-xpath

It's still beta quality, but functional.

Example options:
  # Query boot options:
  --guest NAME --query //os/boot
  # Add an element with attributes:
  --guest NAME //os --add bios --attr useserial=yes
  # Update attribute of an element:
  --guest NAME //devices/disk/driver --update --attr cache=none
  # Remove attributes:
  --guest NAME //disk/driver --remove cache --remove type
  # Delete element:
  --guest NAME '//os/boot[@dev="hd"]' --delete

SAL