bootstrap

#!/bin/bash -e

function create_virtualenv() {
	echo "Creating virtualenv...";
	virtualenv --no-site-packages --distribute .;
	source bin/activate;
}

function maybe_create_virtualenv() {
	echo "
This script will create an isolated environment for installing python
software libraries needed for development unless one exists.

This setup is recommended.

If you are not familiar with using virtualenv [1] to manage a python
development environment you may wish to take a few minutes to read a
bit about it.

If you are comfortable managing it yourself, e.g. through a tool like
virtualenv-wrapper [2], run this command after activating it.

[1] http://www.virtualenv.org/
[2] http://virtualenvwrapper.readthedocs.org/
"

	if [ -t 0 ]; then
		while true; do
			read -p "Create a virtualenv now (recommended)? " yn
			case $yn in
				[Yy]* )
					create_virtualenv
					break;;
				[Nn]* ) break;;
				* ) echo "Please answer yes or no.";;
			esac
		done
	else
		create_virtualenv
	fi
}

if test -z "$VIRTUAL_ENV"; then
	if test ! -e bin/activate; then
		maybe_create_virtualenv
	else
		source bin/activate
	fi
fi


if test -z "$PIP_DOWNLOAD_CACHE"; then
	export PIP_DOWNLOAD_CACHE=.pip
fi

echo "Ensuring an up-to-date pip..."
pip install -qU pip

echo "Checking dependencies (may be a few minutes for first run)..."
pip install --use-wheel -qr requirements.txt