#!/bin/sh
set -eu

usage() {
	cat <<-'EOF'
		Usage:
		  upgrade
		  upgrade -h
	EOF
}

help() {
	cat <<-'EOF'

		Options:
		  -h, --help    show this message


		Upgrades the system:
		- reconfigure the Guix "home" environment and "system".


		Examples:

		  Just use it:

		    $ upgrade
	EOF
}


for flag in "$@"; do
	case "$flag" in
		--)
			break
			;;
		--help)
			usage
			help
			exit
			;;
		*)
			;;
	esac
done

while getopts 'h' flag; do
	case "$flag" in
		h)
			usage
			help
			exit
			;;
		*)
			usage >&2
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))


pass show velhinho/andreh |
	head -n1 |
	sudo -ES guix system -v3 reconfigure /run/current-system/configuration.scm
guix home -v3 reconfigure ~/.guix-home/configuration.scm
