loci/scripts/setup_pip.sh

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#!/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
# virtualenv 16.4.0 fixed symlink handling. The interaction of the new
# corrected behavior with legacy bugs in packaged virtualenv releases in
# distributions means we need to hold on to the pip bootstrap installation
# chain to preserve symlinks. As distributions upgrade their default
# installations we may not need this workaround in the future
PIPBOOTSTRAP=/var/lib/pipbootstrap
# Create the boostrap environment so we can get pip from virtualenv
${TMP_VIRTUALENV} --extra-search-dir=/tmp/wheels ${SETUPTOOLS} ${PIPBOOTSTRAP}
source ${PIPBOOTSTRAP}/bin/activate
# Upgrade to the latest version of virtualenv
pip install --upgrade ${PIP_ARGS} virtualenv
# Forget the cached locations of python binaries
hash -r
# Create the virtualenv with the updated toolchain for openstack service
virtualenv --extra-search-dir=/tmp/wheels /var/lib/openstack
# Deactivate the old bootstrap virtualenv and switch to the new one
deactivate
source /var/lib/openstack/bin/activate