#-
# Copyright (c) 2008-2010 Juan Romero Pardines.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-

#
# Applies to the build directory all patches found in PATCHESDIR
# (templates/$pkgname/patches).
#
_process_patch()
{
	local lver args _patch i=$1

	args="-Np0"
	_patch=$(basename $i)
	if [ -f $PATCHESDIR/${_patch}.args ]; then
		args=$(cat $PATCHESDIR/${_patch}.args)
	elif [ -n "$patch_args" ]; then
		args=$patch_args
	fi
	cp -f $i $wrksrc

	if [ -n "$revision" ]; then
		lver="${version}_${revision}"
	else
		lver="${version}"
	fi

	# Try to guess if its a compressed patch.
	if $(echo $i|grep -q '.diff.gz'); then
		gunzip $wrksrc/${_patch}
		_patch=${_patch%%.gz}
	elif $(echo $i|grep -q '.patch.gz'); then
		gunzip $wrksrc/${_patch}
		_patch=${_patch%%.gz}
	elif $(echo $i|grep -q '.diff.bz2'); then
		bunzip2 $wrksrc/${_patch}
		_patch=${_patch%%.bz2}
	elif $(echo $i|grep -q '.patch.bz2'); then
		bunzip2 $wrksrc/${_patch}
		_patch=${_patch%%.bz2}
	elif $(echo $i|grep -q '.diff'); then
		:
	elif $(echo $i|grep -q '.patch'); then
		:
	else
		msg_warn "'$pkgname-$lver': unknown patch type: $i.\n"
		continue
	fi

	cd $wrksrc && patch -s ${args} < ${_patch} 2>/dev/null
	if [ $? -eq 0 ]; then
		msg_normal "'$pkgname-$lver': Patch applied: ${_patch}.\n"
	else
		msg_error "'$pkgname-$lver': couldn't apply patch: ${_patch}.\n"
	fi
}

apply_tmpl_patches()
{
	local f

	[ ! -d $PATCHESDIR ] && return 0

	if [ -r $PATCHESDIR/series ]; then
		cat $PATCHESDIR/series | while read f; do
			_process_patch "$PATCHESDIR/$f"
		done
	else
		for f in $(echo $PATCHESDIR/*); do
			if $(echo $f|grep -q '.args'); then
				continue
			fi
			_process_patch $f
		done
	fi

	touch -f $XBPS_APPLYPATCHES_DONE
}