On Wed, Feb 08, 2023 at 03:49:48PM +0000, Holger Levsen wrote:
> On Wed, Feb 08, 2023 at 08:39:36AM -0700, Sam Hartman wrote:
> > >>>>> "Holger" == Holger Levsen <hol...@layer-acht.org> writes:
> >     Holger> I don't think there has been consent on the issue, thus I'm
> >     Holger> tagging it moreinfo.
> > My reading of the TC and debian-devel discussion was that this was at
> > least a reasonable thing for maintainers to do,

> can you give pointers?

> > and whether it should be done depended on the circumstances.

> I do agree with that. I'm more against a general recommendation, depending
> on the circumstances, it's the right thing to do.

FWIW I think that it's the wrong thing to do if the "circumstances" include
reverse-dependencies on the package which expect to interact with the
service the package provides, as these packages may themselves do such
interaction in the maintainer script, resulting in cascading damage.

And the decision for whether there are reverse-dependencies on your package
is non-local and asynchronous.

Therefore I think it's always wrong for a package's postinst to exit 0 if:

 - it ships a service,
 - it is a new install or an upgrade on a system where the service was
   previously started successfully, and
 - the service fails to start in the postinst.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                   https://www.debian.org/
slanga...@ubuntu.com                                     vor...@debian.org

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