#!/bin/bash

set -ex

if [[ "${PYTHON3}" == "no" ]]; then
    TMP_VIRTUALENV="virtualenv"
else
    TMP_VIRTUALENV="python3 -m virtualenv --python=python3"
fi

# This little dance allows us to install the latest pip and setuptools
# without get_pip.py or the python-pip package (in epel on centos)
if (( $(${TMP_VIRTUALENV} --version | cut -d. -f1) >= 14 )); then
    SETUPTOOLS="--no-setuptools"
fi
${TMP_VIRTUALENV} --extra-search-dir=/tmp/wheels ${SETUPTOOLS} /tmp/venv
source /tmp/venv/bin/activate

# TODO: Remove virtualenv version pinning once a suitable fix is found
# to this issue:
# http://lists.openstack.org/pipermail/openstack-discuss/2019-February/002592.html
pip install --upgrade ${PIP_ARGS} virtualenv==16.3.0
hash -r
virtualenv --extra-search-dir=/tmp/wheels /var/lib/openstack