#! /bin/sh
#
# addpatch - modifies src/patch.h
#
# Copyright (C) 2002 - 2011 Eggheads Development Team
# Copyright (C) 2000 Fabian Knittel <fknittel@gmx.de>
#
# This file 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
#
# $Id: addpatch,v 1.17 2011/02/13 14:19:33 simple Exp $

show_usage() {
	echo "Usage: `basename $0` [-hs] <patchname> [unixtime]"
	echo ""
	echo "  patchname  - Name of last patch added."
	echo "  unixtime   - Some unixtime number or 'now'. Default is 'now'."
	echo ""
	echo "  -h, --help - Print this help and exit."
	echo "  -s, --show - Print current patch name and exit."
	exit 1
}

if test "x${1}" = "x" || test "x${1}" = "x-h" || test "x${1}" = "x--help"; then
	show_usage
else
	patch_name=$1
fi

if test ! -f src/main.c; then
	echo "You are not in the Eggdrop root directory."
	exit 1
fi

oldpatch_name=`cat src/patch.h | grep -E '^patch.*\);$'| awk '-F"' '{ print $2 }'`

if test "x${oldpatch_name}" = "x"; then
	oldpatch_name='(could not detect)'
fi

if test "x${1}" = "x-s" || test "x${1}" = "x--show"; then
	echo ${oldpatch_name}
	exit
fi

if test "x${2}" = "x" || test "$unix_time" = now; then
	unix_time=`date +%s`
else
	unix_time=$2
fi

echo "Unixtime:      ${unix_time}"
echo "Current patch: ${oldpatch_name}"
echo "New patch:     ${patch_name}"

if sed -e "s/^patch.*\")\(.*current unixtime.*\)/patch(\"${unix_time}\")\1/" -e "s/^patch.*);$/patch(\"${patch_name}\");/" src/patch.h > src/patch.h_; then
	mv src/patch.h_ src/patch.h
	if test "${oldpatch_name}" = "${patch_name}"; then
		echo "Successful:    yes (no name change)"
	else
		echo "Successful:    yes"
	fi

else
	echo "Successful:    no"
	exit 1
fi
