Bug#867081: autopkgtest: @ no longer pulls in packages with versioned Provides

gregor herrmann gregoa at debian.org
Fri Jan 5 04:01:55 UTC 2018

On Mon, 31 Jul 2017 23:59:04 +0300, Niko Tyni wrote:

> > As seen on ci.debian.net with for instance libhttp-tiny-perl and
> > libcpan-meta-perl, autopkgtest gets confused about versioned Provides
> > that were introduced in sid recently with perl_5.24.1-5.
> > 
> > It looks like "Depends: @" will no longer pull in the binary packages
> > to be tested if the same name is also Provided by installed packages
> > with a version.
> > 
> > My reading of the autopkgtest code is that it synthesizes a dependency
> > on 'package (>= 0~)', where the versioning is assumed to guarantee that
> > only a real package gets pulled in. This assumption no longer holds with
> > versioned Provides.
> Oh, I'd mostly forgotten about #761003 which introduced the '(>= 0~)'
> thing three years ago and where we predicted that this will break with
> versioned Provides.
> The solution we discussed there was to insert an additional explicit
>  apt-get install <package>
> phase to the autopkgtest-satdep.deb installation (which unpacks a
> temporary package and then calls 'apt-get --fix-missing' to have apt solve
> the dependencies.)
> This explicit call prefers real packages to virtual ones (at least in
> all my tests though I can't find this documented; possibly this should
> be checked with the apt maintainers.)
> Is this approach something you would consider now that the versioned
> Provides issue has materialized in practice?

Hi autopkgtest maintainers!

AFAIK, this bug is the last blocker for using versioned provides in
the perl world, which would be a big help for us.

Did you have a chance to take a look? Is there anything we could do
to help?


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