caddy_install () {

    local target
    local dir="$(dirname $(realpath "${BASH_SOURCE:-$0}"))"
    target=${1:-/opt/caddy}
    [[ -d $target ]] || mkdir -p $target
    echo installing caddy to $target
    if /bin/cp -r -f $dir/caddy/*  $target; then
        pushd $target || return
        echo CADDY_DIR=$target >> .env
        source .env
        cp conf/example.conf conf/$CONF
        ./config
    else 
        echo unable to copy caddy files to $target, install aborted
    fi
    popd || return
}

# if script was executed then call the function
(return 0 2>/dev/null) || caddy_install $@