#!/usr/bin/env bash

# Copyright (C) 2012-2013 Luke Shumaker <lukeshu@sbcglobal.net>
#
# License: GNU GPLv2+
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. libremessages

usage() {
	print 'Usage: %s REPO REF DIR' "${0##*/}"
	print 'A compatibility wrapper around `gitget checkout`'
	echo
	prose "This exists because gitget used to be called libregit, and took
	       the arguments in this format, and I'm sure there are a few
	       scripts floating around that use it."
	echo
	prose "Clones or pulls from the git URL '<REPO>', and checks out the git
	       ref '<REF>' to the directory '<DIR>'."
}

main() {
	[[ $# == 3 ]] || { usage >&2; return 1; }
	repo=$1
	ref=$2
	dir=$3

	gitget checkout "${repo}#ref=${ref}" "${dir}"
}

main "$@"