[gentoo-soc] Multiple Repository Support in Portage - Week 3

[Otávio Pontes]

Hi,
Last week i was working with adding to portage support for emerging
packages from one specific repository.
Atom class was modified to support a new field, with repository name.
Now before package category it is possible to add a repository name
followed by '::'.
So emerge gentoo::app-portage/eix is the eix from repository gentoo.
Atom class is already working, but emerge is still ignoring this
repository name.
It was also necessary to change other places in portage because slot
separator is ':' and portage was getting confused when atom has '::'.
This week work will be to use this atom information in portdbapi and
in the dependency resolver to use ebuilds from the specified
repository.

Otávio