Re: [gentoo-portage-dev] Portage API

[Brian <dol-sen@telus.net>]

Here is the portion of Fredriks reply on the porthole-dev list for those
that are not on that list.

Hi,

Yes, I confess. I wrote most of portagelib.py. I am a little rusty
though, since I haven't been involved in porthole development for quite
som time.

mån 2004-10-18 klockan 22.14 skrev Brian:
> On Mon, 2004-10-18 at 22:53 +0900, Jason Stubbs wrote:
> > The current USE settings. I'm don't see why PORTDIR or
PORTDIR_OVERLAY is 
> > needed.
> 
> Porthole searches the directories for ebuilds, etc..  Better to use
the
> correct directories, so get the correct directories.  I believe Dan
was
> using portage rather than creating new code to scan
thru /etc/make.conf
> as well as the globals & defaults.

Yep, except it was I who did it :-)
 
> > > portage.auxdbkeys
> > 
> > I'm not sure what's required here either.

auxdbkeys is/should be a list of all properties an ebuild can have. It
was used to get all properties at once. The point of this was, if I
recall correctly, to convert the properties into fields in a python
object. Not necessary, but high in hack value, I think :-)

> > > # showing complete porthole function for (possibly) more clarity
> > > def get_properties(ebuild):
> > >     """Get all ebuild variables in one chunk."""
> > >     return Properties(dict(zip(keys,
> > >                                portage.portdb.aux_get(ebuild,
> > >
portage.auxdbkeys))))
> > >
> > >

See previous point.

> 
> To use portage's vercmp() I would have to write a python bubble sort
to
> sort a list of ebuild versions.   What I did was use Marius's code and
> modified it to pad the version string parts to 3 digits then used
> python's builtin list.sort().
> 

Ah, but list.sort() takes an option argument, which is a comparison
function. I haven't looked at it, but I would guess vercmp() is designed
to work with list.sort(). No need to write that bubble sort.

-- 
Fredrik Arnerup <e97_far@e.kth.se>
http://www.stacken.kth.se/~foo/

-- 
Brian <dol-sen@telus.net>


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