# Archlinux system installation and compare
# vim: ft=sh

# Installs pacaur
# This expect base and base-devel to be installed
arch_pacaur() {
	set -e
	# Make sure that we have wget
	sudo pacman -S wget
	# Download pacaur tar
	wget https://aur.archlinux.org/cgit/aur.git/snapshot/pacaur.tar.gz
	# Download cower (pacaur dependency)
	wget https://aur.archlinux.org/cgit/aur.git/snapshot/cower.tar.gz
	
	tar -xzf cower.tar.gz
	cd cower
	makepkg -cis
	cd ..
	rm -rf cower cower.tar.gz
	tar -xzf pacaur.tar.gz
	cd pacaur
	makepkg -cis
	cd ..
	rm -rf pacaur pacaur.tar.gz

	unset -e
}

archlinux_inst() {
	# Check if we are on archlinux
	if ! [ -e /etc/arch-release ]; then
		echo Archlinux not detected! >&2
		return
	fi
	# Now check for pacaur and optionally install
	if ! pacaur --version 2>&1 >/dev/null; then
		arch_pacaur
	fi

	TFILE1=$(mktemp myconfigs-pacaur1-XXXXX)
	grep -E  '^[^# ]+$' archlinux.pkgs | sort > "$TFILE1"
	TFILE2=$(mktemp myconfigs-pacaur2-XXXXX)
	pacaur -Qqet | sort > "$TFILE2"
	diff  --suppress-common-lines -ay "$TFILE1" "$TFILE2"
	rm "$TFILE1" "$TFILE2"
}