docker-compose/script/prepare-osx

#!/bin/bash

set -ex

if !(which brew); then
  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
fi

brew update

if [ ! -f /usr/local/bin/python ]; then
  brew install python
fi

if [ -n "$(brew outdated | grep python)" ]; then
  brew upgrade python
fi

if !(which virtualenv); then
  pip install virtualenv
fi