As wordpress requires regular updates for it's plugins, how to manage a wordpress git repository so to deploy a website on Paas servers like IBM Bluewmix ?
I would use Capistrano with WordPress for deployment.
The plugins and themes you are coding on would I put under git.
Some informations:
https://github.com/herrkris/wordpress-capistrano
Capistrano 3 deploy WordPress with GIT available in release dir
http://robert-reiz.com/2014/04/27/deployment-with-capistrano-3/