On 22 Jul 2013 17:43, "Dan Williams" <dcbw redhat com> wrote:
>
> On Sat, 2013-07-20 at 01:53 +0200, Tom Gundersen wrote:
> > Udev recently gained a hardware database, which is an efficent replacement for
> > the kind of rules shipped with modemmanager.
> >
> > This patch ports all the relevant udev rules to hwdb format, which should
> > significantly speed up the processing of usb add events.
>
> Which is nice, but it's significantly less clear and readable than the
> udev rules, unfortunately. Is there any way we can autogenerate the
> hwdb stuff from the udev rules and just install that instead, but keep
> editing the udev rules?
I don't think it would be impossible, but at the same time I don't see how to do it in a reasonable and robust way. I'm cc'ing Kay in case he wants to prove me wrong.
Another option would be to introduce a new, special purpose, intermediate language, see e.g. how media-player-info does it.
However, are you sure it is worth the effort? We only have four different (and largely overlapping) patterns in use, so if we add the right documentation/comments at the top of all the rules files it should be easy enough to edit, don't you think?
-t