#!/bin/sh
# Copyright (c) 2020-2021 Sebastian LaVine <mail@smlavine.com>
# Licensed under the GNU GPLv3. See GPLv3.txt for details.
#
# File:        addpackage
# Description: Add the given package to smlss's install lists.
# Options:     -a        Add packages to the AUR list, not the Arch list.
# Arguments:   names of packages to add

usage()
{
	echo "Usage: addpackage [-$options] packages..."
}

options="a"
while getopts "$options" o; do
	case "$o" in
		a) aur=1 ;;
		*) usage && exit ;;
	esac
done

shift $((OPTIND - 1))

if [ "$#" -eq 0 ]; then
	usage
	exit
fi

pkgs="$*"

if [ ! "$SMLSS_DIR" ]; then
	# Single quotes intended, I don't want the value of $SMLSS_DIR here.
	# shellcheck disable=SC2016
	echo 'addpackage: error: $SMLSS_DIR does not exist.' >&2
	exit 1
fi

if [ "$aur" ]; then
	file="$SMLSS_DIR/aur-packages.txt"
else
	file="$SMLSS_DIR/packages.txt"
fi

echo "$pkgs" | tr ' ' '\n' | cat "$file" - | sort | sponge "$file" \
	&& git -C "$SMLSS_DIR" add "$file"

msg="$(basename "$file"): Add $(echo "$pkgs" | sed -e 's/ /, /g' -e 's/, $//')"

git -C "$SMLSS_DIR" commit -vem "$msg"