update

#!/bin/sh

set -e

printf "checking...\n"

_latest_xmonad=$(git ls-remote https://github.com/xmonad/xmonad.git HEAD | cut -f1)
_latest_contrib=$(git ls-remote https://github.com/xmonad/xmonad-contrib.git HEAD | cut -f1)
_latest_x11=$(git ls-remote https://github.com/xmonad/x11.git HEAD | cut -f1)
_latest_xmobar=$(curl --silent "https://api.github.com/repos/jaor/xmobar/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')

_current_xmonad=$(awk '/xmonad[/]xmonad$/{getline;print$2}' ./stack.yaml)
_current_contrib=$(awk '/xmonad[/]xmonad-contrib$/{getline;print$2}' ./stack.yaml)
_current_x11=$(awk '/xmonad[/]x11$/{getline;print$2}' ./stack.yaml)
_current_xmobar=$(awk -F "-" '/xmobar/{print$3}' ./stack.yaml | awk '!/^$/')

if [ "$_latest_xmonad" != "$_current_xmonad" ]; then
	sed -i "s/${_current_xmonad}/${_latest_xmonad}/" ./stack.yaml
	printf 'upgraded xmonad to latest\n'
else
	printf 'xmonad is up-to-date\n'
fi

if [ "$_latest_contrib" != "$_current_contrib" ]; then
	sed -i "s/${_current_contrib}/${_latest_contrib}/" ./stack.yaml
	printf 'upgraded xmonad-contrib to latest\n'
else
	printf 'xmonad-contrib is up-to-date\n'
fi

if [ "$_latest_x11" != "$_current_x11" ]; then
	sed -i "s/${_current_x11}/${_latest_x11}/" ./stack.yaml
	printf 'upgraded xmonad/x11 to latest\n'
else
	printf 'xmonad/x11 is up-to-date\n'
fi

if [ "$_latest_xmobar" != "$_current_xmobar" ]; then
	sed -i "s/${_current_xmobar}/${_latest_xmobar}/" ./stack.yaml
	printf 'upgraded xmobar to latest\n'
else
	printf 'xmobar is up-to-date\n'
fi