#!/bin/sh
set -e

for package in python-pip python-virtualenv python-dev libevent-dev; do
    if [ "$(dpkg --status -- $package|sed -n 's/^Status: //p')" != "install ok installed" ]; then
	# add a space after old values
	missing="${missing:+$missing }$package"
    fi
done
if [ -n "$missing" ]; then
    echo "$0: missing required packages, please install them:" 1>&2
    echo "sudo apt-get install $missing"
    exit 1
fi

virtualenv --no-site-packages --distribute virtualenv

# avoid pip bugs
./virtualenv/bin/pip install --upgrade pip

# work-around change in pip 1.5
./virtualenv/bin/pip install setuptools --no-use-wheel --upgrade

./virtualenv/bin/pip install -r requirements.txt

# forbid setuptools from using the network because it'll try to use
# easy_install, and we really wanted pip; next line will fail if pip
# requirements.txt does not match setup.py requirements -- sucky but
# good enough for now
./virtualenv/bin/python setup.py develop \
    --allow-hosts None