Re: [gentoo-perl] Fwd: Réf. : Re: g-cpan ;)

[Michael Cummings]

On Wednesday 11 May 2005 04:58 am, Elfyn McBratney wrote:
> /me waves @ new list :)
/me waves back ;)
>
> Exactly, this is a perfect reason to keep, and improve upon the notion of
> `g-cpan --upgrade`, imo. :)  Being able to respond to bug reports with a
> `g-cpan --upgrade whatever ..` and fix a user issue (come up quite few
> times in the month and a half that i've been on perl@, as Mike mentioned ;)
> makes all our bug-wrangling lives easier.
>
> Expanding on this a little, and now vdb has been mentioned ;), we could
> have, say, a --check-origin option to g-cpan - which would check for a
> tag/identifier in the ebuild in the vdb denoting that it was created by
> g-cpan - to ascertain whether or not the ebuild was installed via g-cpan
> (duh ;) or not .. not something that would be as useful now, but in time
> once such a thing is wide-spread .. lemme know if I'm way of base 'ere ;)

Actually, this was the idea behind having all of the g-cpan ebuilds (when an 
overlay is present) to be stored in $overlay/perl-gcpan - if it's in 
perl-gcpan, then its their problem so to speak.  For that matter, even if 
they don't have an overlay, when they emerge the temp file a copy of the 
ebuild is being plopped in /var/db/pkg/perl-gcpan/ anyway, so either way we 
have a means of identifying those ebuilds without any special tags (unless 
you twist my arm real nice, in which case I'll agree to anything :)

Also, fwiw, the upgrade functions got cleaned a little bit yesterday :) 


>   - check for the latest cpan version of foo;
done
>   - grab the latest versions of foo's dependencies (if any);
done
>   - write that out to a world/avail. file (a saved-state thing)
done
>   - use it on the next g-cpan run (upgrade if not within a set 'cache ttl'
done i think - not clear on the cache stuff (just groggy)

> With that (getting slightly adventurous) we could implement things like
> CPAN-dependency listings (a la `emerge -pvt dev-perl/Foo` - without having
> to actually make the ebuilds), --pretend (you know what that'd do ;),
> --sync (update metadata from CPAN, maybe even fetching the Xmodules.txt
> (tho CPAN.pm'll do this every other day when said files are updated), etc.
> files and stashing them locally, ..
>

-pv works now. If they have an overlay and the ebuild was stored, even if they 
didn't emerge it last time it's still available to emerge -pv output ;) As 
for the syncing - cpan updates its metalist based on a time default (1 day i 
think is the generic), so i'm leary of this whole synching again thing...but 
I don't think I'm understanding the implications completely either :)

ok, on to the next email i didn't answer...

~M
-- 

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Michael Cummings   |    #gentoo-dev, #gentoo-perl
Gentoo Perl Dev    |    on irc.freenode.net 
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