[Pkg-utopia-maintainers] Bug#500916: Bug#500916: Bug#500916: hal: FDI cache does not get updated when installing .fdi files from packages

[Michael Biebl]

Martin Pitt wrote:
> Hi Michael,
> 
> Michael Biebl [2008-10-03 21:48 +0200]:
>> I had a short discussion with lool on irc, and we had an alternative idea:
>> Install a dpkg trigger.
> 
> Ah, indeed that sounds like a great idea, and much less blunt than
> changing the init script (sorry for the kneejerk patch, had to do
> something quick to unscrew the Ubuntu upgrade to 8.10 beta).
> 
> However, so far I thought that dpkg triggers are triggered by postinst
> scripts. There are triggers for "any package installed/upgraded", too?
> I'm not very familiar with triggers, apparently you know more than me.
> :-)

Calling a trigger explicitely in postinst is only one possibility.

The one I had in mind would be a file based trigger.

This trigger would be installed by the hal package.
Whenever a package installs a file under /usr/share/hal/fdi, the trigger
would be activated. So we don't need to modify all packages shipping fdi
files.

I've committed a proposed fix as r2435 [1]


>> For the etch -> lenny upgrade, we would regenerate the fdi cache in hal
>> postinst as we can't rely on the dpkg triggers functionality yet.
> 
> Right, that makes perfect sense.

Actually, as sjoerd correctly noticed, we don't even need that, as the
etch version doesn't have a cache yet ;-)

Have a nice weekend,
Michael

[1] http://svn.debian.org/wsvn/pkg-utopia/?rev=2435&sc=1
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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