#!/bin/bash

if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
    set -x
fi
set -eu
set -o pipefail

# Ensure the python3 interpreter and YAML libraries are installed
# early (even before package-installs, which is written in Python and
# uses YAML).

if [[ ${DISTRO_NAME} =~ (centos|rhel) && ${DIB_RELEASE} == 7 ]]; then
    # Our package map and install stuff doesn't have a way to say
    # "install this from EPEL".  So we hack in an install of it here
    # from EPEL.  Nothing else should have installed EPEL at this
    # early stage.
    yum install -y python3
    # NOTE(dpawlik) The epel-release package is not available in RHEL.
    yum install -y ${DIB_CENTOS_7_PREINSTALL_EPEL_URL_PACKAGE:-https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm}
    yum install -y python36-PyYAML
    yum remove -y epel-release
elif [[ ${DISTRO_NAME} =~ (centos|rhel) && ${DIB_RELEASE} > 7 ]]; then
    # For 8 and above ensure the "user" python3 package is installed
    # so we have /usr/bin/python3 and pyyaml.
    dnf install -y python3 python3-pyyaml
fi