#!@@SHELL@@
#
# opkhelper
# src/oh-applypatches
# Apply patches to source code.
#
# Copyright (C) 2012 Patrick "P. J." McDermott
#
# 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 3 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/>.

. @@LIBDIR@@/opkhelper/messages

print_usage()
{
	printf 'Usage: %s\n' "${1}"
}

if [ ${#} -ne 0 ]; then
	print_usage ${0} >&2
	exit 1
fi

applied=false

if [ -d ../patches ]; then
	# Iterate over patches ordered alphabetically by name.
	for patch in $(ls -1 ../patches | sort); do
		oh_info 'Applying patch "%s"...' "${patch}"
		patch -N -p 1 -u -d src -i "../../patches/${patch}" || exit 1
		applied=true
	done
fi

# Provide output even if patches directory didn't exist or had no visible files.
if ! ${applied}; then
	oh_info 'No patches to be applied'
fi