#!/usr/bin/env sh

# apply-changes v0.2
# git post-merge hook to denote changes to the running environment after
# merging from remote, not attempting to run scripts in here because git gets
# confused when it's called in pre-run scripts

str='\a\e[5;1;101m %s \e[0m\n'

script_change() {
	printf "$str" "Re-run ~/$1"
}
restart_x() {
	printf "$str" 'Restart X session to apply changes to graphical shell'
}
relogin() {
	printf "$str" 'Login again to apply changes to shell environment.'
}

IFS='
'
! is-termux && git meta diff-tree -r --name-only ORIG_HEAD HEAD \
	| while read -r file; do
	case "$file" in
		# changes to graphical shell
		.local/include/*|.config/dwm/*) restart_x;;
		.config/*|.xinitrc|.xresources|Scripts/*) restart_x;;

		# changes to shell environment
		.profile) relogin;;

		# changes to installed packages
		.comforts) script_change .once.d/01-install-essential.sh;;
		.comforts-git|.config/upstream/*) script_change .once.d/10-git-upstream.sh;;

		# changes to keyd
		.config/keyd/*) sudo systemctl restart keyd.service;;

		# changes to post-install scripts
		.once.d/*) script_change "$file";;
	esac
done | sort | uniq | nl