[gentoo-soc] [Report 1] layman improvements

[Devan Franchini]

Hello community!

Throughout this week, the following progress has been made:

1.) py2/py3 compatibility has been added:
     * By running the 2to3 python tool I was able to make some small fixes.
     * SSL-Fetch code was migrated into layman for compatibility support.
     * Migration of optparse to argparse
2.) Repos.conf support has been added:
     For those of you familiar with Portage you are aware that if you
     look at the config in /etc/portage/repos.conf/gentoo.conf you will see
     the main portage overlay config file. Support for another file
called layman.conf
     has been added as well.
3.) RepoConfManager:
     To handle multiple config type plugins such as make.conf and
repos.conf a class
     has been added to handle the file configurations. This method
also will allow for no
     config type required, as well as custom config type plugins (not
yet implemented).
4.) URL Updating:
     What I am currently in the process of working on is the updating
of source URLs if they
     are reported by the remote database of layman overlays as no
longer valid. So far I have
     added support for updating git source URLs and more overlay
support will be added
     throughout next week along with polishing of the already in place code.

Goals for next week:

* Continue refining the code started.
* Add url update support for more overlay types.
* Hopefully add custom config type plugin support for RepoConfManager.

To all interested, the source code and my commits can be found on
g.o.g.o or github.com on layman's gsoc2014 branch:
   1.) http://git.overlays.gentoo.org/gitweb/?p=proj/layman.git;a=shortlog;h=refs/heads/gsoc2014
   2.) https://github.com/twitch153/layman/tree/gsoc2014

I hope everyone else is making good progress on their projects as well.

With regards,
    Devan Franchini