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#!/usr/bin/env bash
# **install_pip.sh**
# Update pip and friends to a known common version
# Assumptions:
# - if USE_PYTHON3=True, PYTHON3_VERSION refers to a version already installed
set -o errexit
# Keep track of the current directory
TOOLS_DIR=$(cd $(dirname "$0") && pwd)
TOP_DIR=`cd $TOOLS_DIR/..; pwd`
# Change dir to top of DevStack
cd $TOP_DIR
# Import common functions
source $TOP_DIR/stackrc
# don't start tracing until after we've sourced the world
set -o xtrace
FILES=$TOP_DIR/files
# The URL from where the get-pip.py file gets downloaded. If a local
# get-pip.py mirror is available, PIP_GET_PIP_URL can be set to that
# mirror in local.conf to avoid download timeouts.
# Example:
# PIP_GET_PIP_URL="http://local-server/get-pip.py"
#
# Note that if get-pip.py already exists in $FILES this script will
# not re-download or check for a new version. For example, this is
# done by openstack-infra diskimage-builder elements as part of image
# preparation [1]. This prevents any network access, which can be
# unreliable in CI situations.
# [1] http://git.openstack.org/cgit/openstack-infra/project-config/tree/nodepool/elements/cache-devstack/source-repository-pip
PIP_GET_PIP_URL=${PIP_GET_PIP_URL:-"https://bootstrap.pypa.io/get-pip.py"}
LOCAL_PIP="$FILES/$(basename $PIP_GET_PIP_URL)"
GetDistro
echo "Distro: $DISTRO"
function get_versions {
# FIXME(dhellmann): Deal with multiple python versions here? This
# is just used for reporting, so maybe not?
PIP=$(which pip 2>/dev/null || which pip-python 2>/dev/null || true)
if [[ -n $PIP ]]; then
PIP_VERSION=$($PIP --version | awk '{ print $2}')
echo "pip: $PIP_VERSION"
else
echo "pip: Not Installed"
fi
}
function install_get_pip {
# If get-pip.py isn't python, delete it. This was probably an
# outage on the server.
if [[ -r $LOCAL_PIP ]]; then
if ! head -1 $LOCAL_PIP | grep -q '#!/usr/bin/env python'; then
echo "WARNING: Corrupt $LOCAL_PIP found removing"
rm $LOCAL_PIP
fi
fi
# The OpenStack gate and others put a cached version of get-pip.py
# for this to find, explicitly to avoid download issues.
#
# However, if DevStack *did* download the file, we want to check
# for updates; people can leave their stacks around for a long
# time and in the mean-time pip might get upgraded.
#
# Thus we use curl's "-z" feature to always check the modified
# since and only download if a new version is out -- but only if
# it seems we downloaded the file originally.
if [[ ! -r $LOCAL_PIP || -r $LOCAL_PIP.downloaded ]]; then
# only test freshness if LOCAL_PIP is actually there,
# otherwise we generate a scary warning.
local timecond=""
if [[ -r $LOCAL_PIP ]]; then
timecond="-z $LOCAL_PIP"
fi
curl -f --retry 6 --retry-delay 5 \
$timecond -o $LOCAL_PIP $PIP_GET_PIP_URL || \
die $LINENO "Download of get-pip.py failed"
touch $LOCAL_PIP.downloaded
fi
sudo -H -E python $LOCAL_PIP -c $TOOLS_DIR/cap-pip.txt
if python3_enabled; then
sudo -H -E python${PYTHON3_VERSION} $LOCAL_PIP -c $TOOLS_DIR/cap-pip.txt
fi
}
function configure_pypi_alternative_url {
PIP_ROOT_FOLDER="$HOME/.pip"
PIP_CONFIG_FILE="$PIP_ROOT_FOLDER/pip.conf"
if [[ ! -d $PIP_ROOT_FOLDER ]]; then
echo "Creating $PIP_ROOT_FOLDER"
mkdir $PIP_ROOT_FOLDER
fi
if [[ ! -f $PIP_CONFIG_FILE ]]; then
echo "Creating $PIP_CONFIG_FILE"
touch $PIP_CONFIG_FILE
fi
if ! ini_has_option "$PIP_CONFIG_FILE" "global" "index-url"; then
# It means that the index-url does not exist
iniset "$PIP_CONFIG_FILE" "global" "index-url" "$PYPI_OVERRIDE"
fi
}
# Setuptools 8 implements PEP 440, and 8.0.4 adds a warning triggered any time
# pkg_resources inspects the list of installed Python packages if there are
# non-compliant version numbers in the egg-info (for example, from distro
# system packaged Python libraries). This is off by default after 8.2 but can
# be enabled by uncommenting the lines below.
#PYTHONWARNINGS=$PYTHONWARNINGS,always::RuntimeWarning:pkg_resources
#export PYTHONWARNINGS
# Show starting versions
get_versions
# Do pip
# Eradicate any and all system packages
# Python in fedora depends on the python-pip package so removing it
# results in a nonfunctional system. pip on fedora installs to /usr so pip
# can safely override the system pip for all versions of fedora
if ! is_fedora ; then
uninstall_package python-pip
uninstall_package python3-pip
fi
install_get_pip
if [[ -n $PYPI_ALTERNATIVE_URL ]]; then
configure_pypi_alternative_url
fi
set -x
pip_install -U setuptools
get_versions