#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2016-08-01 10:17:55 +0100 (Mon, 01 Aug 2016)
#
#  https://github.com/HariSekhon/DevOps-Bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x

echo "================================================================================"
echo "                           G r o o v y   I n s t a l l"
echo "================================================================================"

GROOVY_VERSION=${1:-${GROOVY_VERSION:-4.0.0}}

am_root(){
    [ "${EUID:-${UID:-$(id -n)}}" = 0 ]
}
if am_root; then
    BASE=/opt
else
    BASE=~/bin
fi

date '+%F %T  Starting...'
start_time="$(date +%s)"
echo

if ! [ -e "$BASE/groovy" ]; then
    mkdir -p "$BASE"
    cd "$BASE"
    wget -t 100 --retry-connrefused "https://groovy.jfrog.io/artifactory/dist-release-local/groovy-zips/apache-groovy-binary-$GROOVY_VERSION.zip"
    unzip "apache-groovy-binary-$GROOVY_VERSION.zip"
    ln -sv -- "groovy-$GROOVY_VERSION" groovy
    rm -f -- "apache-groovy-binary-$GROOVY_VERSION.zip"
    echo
    echo "Groovy Install done"
else
    echo "$BASE/groovy already exists - doing nothing"
fi
if am_root; then
    if [ -d /etc/profile.d/groovy.sh ]; then
        if ! [ -e /etc/profile.d/groovy.sh ]; then
            echo "Adding /etc/profile.d/groovy.sh"
            # shell execution tracing comes out in the file otherwise
            set +x
            cat >> /etc/profile.d/groovy.sh <<EOF
    export GROOVY_HOME=/opt/groovy
    export PATH=\$PATH:\$GROOVY_HOME/bin
EOF
        fi
    fi
else
    echo "Ensure you have ~/bin/groovy/bin set in your \$PATH"
fi

echo
date '+%F %T  Finished'
echo
end_time="$(date +%s)"
time_taken="$((end_time - start_time))"
echo "Completed in $time_taken secs"
echo
echo "=================================================="
echo "            Groovy Install Completed"
echo "=================================================="
echo