[Debconf-devel] Bug#560317: dpkg-trigger complains at dpkg-reconfigure time

[Raphael Hertzog]

On Mon, 13 Sep 2010, Ian Jackson wrote:
> Raphael Hertzog writes ("Re: Bug#560317: dpkg-trigger complains at dpkg-reconfigure time"):
> > On Thu, 10 Dec 2009, Joey Hess wrote:
> > > Does it actually make sense for dpkg-trigger to see those environment
> > > variables when the postinst is not being run by dpkg? Seems possible that
> > > any deferred trigger processing it then sets up will not take effect until
> > > the next dpkg run, which could be well after dpkg-reconfigure finishes.
> 
> I think Joey is right.  In particular, dpkg-reconfigure should not set
> DPKG_RUNNING_VERSION, because that promises that the whole thing is
> running as a descendant a copy of dpkg; said copy of dpkg is
> responsible for processing triggers.

I agree with not setting DPKG_RUNNING_VERSION, but the others should be
set. Otherwise you can't reliably use the variables in a postint. And they
are used in several situations when dpkg-maintscript-helper is invoked.

> > Given that dpkg-maintscript-helper is also impacted and not only
> > dpkg-trigger, I think that ? yes ? it really make sense to set them.
> 
> Can you explain why the analysis above is wrong ?

Did I say it's wrong?

Cheers,
-- 
Raphaël Hertzog ◈ Debian Developer ◈ [Flattr=20693]

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