Creates a virtual env with Pinax if it doesn't exist.

jenkins_virtualenv.sh

#!/bin/bash
if [ -d ".env" ]; then
  echo "**> virtualenv exists"
else
  echo "**> creating virtualenv"
  virtualenv .env
  echo "**> Downloading Pinax"
  curl http://downloads.pinaxproject.com/Pinax-0.7.3-bundle.tar.gz -o Pinax-0.7.3-bundle.tar.gz
  echo "**> Extracting Pinax"
  tar -xf Pinax-0.7.3-bundle.tar.gz
  echo "**> Installing Pinax in virtualenv .env"
  python Pinax-0.7.3-bundle/scripts/pinax-boot.py .env
fi