The Powerline install process for OS X 10.10

powerline.sh

#!/usr/bin/env bash

# Check that /usr/local/bin comes before /usr/bin in your PATH

brew install python

brew install cmake

brew install libgit2

brew install mercurial

pip install --upgrade pip

pip install --upgrade setuptools

pip install psutil

# may need these to install pygit2
export LIBGIT2=/usr/local/Cellar/libgit2/<libgit2 version>/lib

# if there is a libffi complaint
brew install libffi
export PKG_CONFIG_PATH="/usr/local/Cellar/libffi/<version>/lib/pkgconfig"

# end possible pygit issues

pip install pygit2

pip install git+git://github.com/Lokaltog/powerline