#!/bin/bash

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

print_deprecation_warning() {
    echo "##############################################################"
    echo "##                                                          ##"
    echo "## WARNING: the version of Spark being included in this     ##"
    echo "##          image has been deprecated in the Sahara Spark   ##"
    echo "##          plugin. Please consider upgrading to a          ##"
    echo "##          supported version.                              ##"
    echo "##                                                          ##"
    echo "##  See: https://wiki.openstack.org/wiki/Sahara/SparkPlugin ##"
    echo "##                                                          ##"
    echo "##############################################################"
}

# Check for deprecated versions in the Spark plugin
major_v=$(echo $DIB_SPARK_VERSION | cut -f1 -d.)
minor_v=$(echo $DIB_SPARK_VERSION | cut -f2 -d.)
if [ "${major_v}" == "0" ]; then
    print_deprecation_warning
elif [ "${major_v}" == "1" -a "${minor_v}" == "0" ]; then
    print_deprecation_warning
fi

if [ -z "${SPARK_DOWNLOAD_URL:-}" -a -z "${DIB_CDH_VERSION:-}" ]; then
    echo -e "Neither DIB_CDH_VERSION nor SPARK_DOWNLOAD_URL are set. Impossible to install Spark.\nAborting"
    exit 1
fi