Enable systemd units on update

	local now=`date +%s` updated=`date -r $timestamp +%s 2>/dev/null`

	local BOLD_BLUE=$'\033[34;1m' DEFAULT=$'\033[m'

	local prompt="${BOLD_BLUE}Would you like to update dotfiles?${DEFAULT} "

	local unit

	if [ -n "$USE_PROMPT" ]; then

		if [ $now -lt $((updated + 604800)) ]; then

	# re-source this file

	unset SOURCED_SHELL_FUNCS

	. ~/.shell/funcs

	# ensure systemd units are enabled

	if type systemctl >/dev/null 2>&1; then

		systemctl --user daemon-reload

		for unit in ~/.config/systemd/user/*; do

			if [ -d "$unit" ]; then continue; fi

			echo "Enabling $unit"

			systemctl --user enable "${unit##*/}" 2>/dev/null

		done

	fi

}