#!/usr/bin/env bash
set -euo pipefail

if [[ $EUID -ne 0 ]]; then
  echo "Requesting sudo..."
  exec sudo "$0" "$@"
fi

pacman -Syu

installed=$(pacman -Q linux | awk '{print $2}' | sed 's/\.arch/-arch/')
running=$(uname -r)

if [[ "$running" == "$installed" ]]; then
  echo "updated, no reboot needed"
else
  echo "updated, rebooting"
  reboot
fi