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#!/bin/bash

#   Copyright (c) 2012-2013 Pacman Development Team <pacman-dev@archlinux.org>
#   Copyright (c) 2012-2013 Luke Shumaker <lukeshu@sbcglobal.net>
#
#   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/>.

. /etc/conf.d/parabolaweb
. libremessages

dir=$WEBDIR
repo=$GITURL
ref=$GITREF

cd_safe() {
	if ! cd "$1"; then
		error "$(gettext "Failed to change to directory %s")" "$1"
		plain "$(gettext "Aborting...")"
		exit 1
	fi
}

download_git() {
	if [[ ! -d "$dir/.git" ]] ; then
		msg2 "$(gettext "Cloning %s %s repo...")" "${repo}" "git"
		if ! git clone "$repo" "$dir"; then
			error "$(gettext "Failure while downloading %s %s repo")" "${repo}" "git"
			plain "$(gettext "Aborting...")"
			exit 1
		fi
	else
		cd_safe "$dir"
		# Make sure we are fetching the right repo
		if [[ "$repo" != "$(git config --get remote.origin.url)"  ]] ; then
			error "$(gettext "%s is not a clone of %s")" "$dir" "$repo"
			plain "$(gettext "Aborting...")"
			exit 1
		fi
		msg2 "$(gettext "Updating %s %s repo...")" "${repo}" "git"
		if ! git pull origin "$ref"; then
			# only warn on failure to allow offline builds
			warning "$(gettext "Failure while updating %s %s repo")" "${repo}" "git"
		fi
	fi
}

main() {
	[[ -d "${dir%/*}" ]] || mkdir -p "${dir%/*}"
	download_git
}

main "$@"