Bug#920024: Doesn't parse package architectures correctly when any-amd64 is used (etc.)

[Johannes Schauer Marin Rodrigues <josch@debian.org>]

Quoting Johannes Schauer (2019-03-27 06:05:51)
> On Tue, 22 Jan 2019 00:44:03 +0100 Raphael Hertzog <hertzog@debian.org> wrote:
> > On Mon, 21 Jan 2019, Steve McIntyre wrote:
> > > I've just been looking at the details for sbsigntool
> > > (https://tracker.debian.org/pkg/sbsigntool) It looks like the tracker
> > > code is confused by the architecture list for sbsigntool:
> > > 
> > >   Architecture: any-amd64 any-i386 arm64 armhf
> > > 
> > > and is just showing 
> > > 
> > >   arch: arm64 armhf
> > > 
> > > which is quite confusing!
> > 
> > Yeah, the data model includes a list of architectures by source package
> > and the parsing keeps only entries which are real architectures, the
> > architecture wildcards are just not handled.
> > 
> > Extract from distro_tracker/core/retrieve_data.py:
> > 
> >         # Convert the parsed data into corresponding model instances
> >         if 'architectures' in entry:
> >             # Map the list of architecture names to their objects
> >             # Discards any unknown architectures.
> >             entry['architectures'] = Architecture.objects.filter(
> >                 name__in=entry['architectures'])
> > 
> > I think we don't have any code in the tracker to handle architecture wildcard
> > and try to do any mapping or expansion. Given the data model, that's we should
> > aim to do here. Creating all the possible wildcards would be wrong, instead we
> > want to process the list of architectures that the tracker knows of and see
> > whether it matches the wildcards listed in the source package field.
> 
> Feel free to use this Debian architecture wildcard matching implementation:
> 
> https://gitlab.mister-muffin.de/josch/debarchwildcardtest/blob/master/debarch.py
> 
> In my opinion this code should really live in python-debian but hasn't been
> put there yet (#771058).

starting with python3-debian 0.1.45 you can do this:

    from debian.debian_support import DpkgArchTable
    arch_table = DpkgArchTable.load_arch_table()
    print(arch_table.matches_architecture("amd64", "linux-any"))

if tracker is running on stable, then maybe this bug can be fixed after the
bookworm release?

Thanks!

cheers, josch

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