Re: [gentoo-dev] Google Code shutdown requires 524 ebuilds to be fixed before end of 2016

[M. J. Everitt]

On 05/11/16 01:20, Rich Freeman wrote:
> On Fri, Nov 4, 2016 at 8:30 PM, M. J. Everitt <m.j.everitt@×××.org> wrote:
>> Apologies, getting ahead of myself here .. there must be a portage
>> utility, but I've forgotten which one interrogates metadata .. I'll
>> defer to a more authoritative source ...
>>
> There might be a command line utility if you're doing things the shell way.
>
> But, from that python script I linked the relevant part is:
>
> from portage.xml.metadata import MetaDataXML
>
> metxml = path+"/"+category+"/"+pkgname+"/metadata.xml"
> maints=[]
> try:
>   pkg_md = MetaDataXML(metxml,"/usr/portage/metadata/herds.xml")
>   for maint in pkg_md.maintainers():
>   maints.append(maint.email)
> except IOError: pass
>
> Just feed that api call with a metadata.xml.  Hopefuly it works with
> the projects.xml syntax as herds.xml is of course defunct.    I'd
> check the portage API docs as there might be some improvements there.
>
> The portage api is actually fairly powerful and far superior to a lot
> of stuff that gets done with grep.  It just needs a bit of time
> getting used to it since there aren't a lot of docs/examples/etc
> floating around.  The script that came out of was designed to find
> packages that depend on packages that expose subslots but which don't
> define slot operator deps.  Granted, not everything in that list
> should be using them, and by now I imagine it is almost entirely false
> positives, but it shows the sort of thing you can do with a couple of
> lines of python that would be an incredible pain to do any other way.
> I believe paludis also exposes some APIs that probably could also be
> used.
>
Bit beyond my python-fu .. but I get where you're going with that. If I
wasn't banging my head against cups/hplip, I might give it a shot ... :P !!