#!/bin/sh

#

# Given a series.conf file and a directory with patches, applies them to the

# current directory.

# Used by kernel-source.spec.in and kernel-binary.spec.in

USAGE="$0 [--vanilla] <series.conf> <patchdir> [symbol ...]"

set -e

set -o pipefail

vanilla=false

if test "$1" == "--vanilla"; then

	vanilla=true

	shift

fi

if test $# -lt 2; then

	echo "$USAGE" >&2

	exit 1

fi

DIR="${0%/*}"

SERIES_CONF=$1

PATCH_DIR=$2

shift 2

trap 'rm -f "$series"' EXIT

series=$(mktemp)

# support for patches in patches.addon/series

cp "$SERIES_CONF" "$series"

if ! $vanilla && test -e "$PATCH_DIR/patches.addon/series"; then

	# make it user-friendly and automatically prepend "patches.addon/"

	# if there is no "/"

	sed -r 's|^([[:space:]]*)([^#[:space:]][^/]*)$|\1patches.addon/\2|' \

		"$PATCH_DIR/patches.addon/series" >>"$series"

fi

(

	echo "trap 'echo \"*** patch \$_ failed ***\"' ERR"

	echo "set -ex"

	"$DIR"/guards "$@" <"$series" | \

	if $vanilla; then

		sed -rn '/^patches\.(kernel\.org|rpmify)\//p'

	else

		cat

	fi |\

	sed "s|^|patch -s -F0 -E -p1 --no-backup-if-mismatch -i $PATCH_DIR/|"

) | sh