Bug#851136: dh-make-perl: docs of where available modules -> debs found

[Kevin Ryde]

gregor herrmann <gregoa at debian.org> writes:
>
> 1) missing documentation for how dh-make-perl does the mapping of
>    CPAN distributions to Debian packages (which is primarily with
>    apt-file but also with DPKG::Parse::Available)

Yes.

> 2) DPKG::Parse::Available reading the /var/lib/dpkg/available file
>    which doesn't get updated anymore (?).

I thought dselect, but it didn't work for me.  Due to my setups or no
downloads I imagine.  I hold back a few packages too so wouldn't want it
running amok. :-)

>    I'm wondering if using DPKG::Parse::Status which reads
>    /var/lib/dpkg/status would make sense.  This then only returns
>    installed packages in my understanding but maybe that was the idea
>    of this change?  [0]

I had a suspicion apt-file now looks at installed packages too even if
you don't have the dist contents files (which I still usually don't due
to size).  I think I had a wishlist previously that dh-make-perl would
look at locally installed packages, maybe now it does, or mostly.

In either case the docs could say whether currently installed packages
are considered.