#!/bin/ksh -eu

output_file="${1}"

if [ "${output_file}" -nt xmonad.hs ] && [ "${output_file}" -nt /usr/local/bin/xmonad ]; then
    echo "${output_file}" is newer than xmonad.hs
    exit 0
fi

cabal v2-install exe:xmonad-config --overwrite-policy=always --install-method=copy

[ -e "${output_file}" ] && mv -f "${output_file}" "${output_file}.old"
install "${HOME}/.local/bin/xmonad-config" "${output_file}"
