# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=6

DESCRIPTION="Linux kernel"
HOMEPAGE="http://kernel.org/"
SRC_URI="https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/snapshot/linux-stable-${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/linux-stable-${PV}"

LICENSE="GPLv2"
SLOT="${PV}"
KEYWORDS="amd64 ~x86"
IUSE=""

DEPEND=""
RDEPEND="${DEPEND}"

src_configure() {
	# Fix ARCH variable
	[ "$ARCH" = "amd64" ] && ARCH="x86"

	"${FILESDIR}"/config_prepare.sh || die "Configuration application failed"
}

src_install() {
	emake modules_install INSTALL_MOD_PATH="${D}" INSTALL_FW_PATH="${D}/lib/firmware/${PV}"

	dodir /boot
	insinto /boot
	newins "${S}/arch/$ARCH/boot/bzImage" "bzlinux-${PV}"
}

pkg_postinst() {
	# Add label to syslinux config if there is non yet
	if ! grep -q "^LABEL gentoo-${PV}$" /boot/syslinux/syslinux.cfg; then
		ARGS="$(grep -E "^# ARGS: " /boot/syslinux/syslinux.cfg | sed 's/^# ARGS: //')"
		if [ -n "$ARGS" ]; then
			sed -i "/^## Dynamic labels ##$/a LABEL gentoo-${PV}\n\tMENU LABEL Gentoo${PV}\n\tLINUX ../bzlinux-${PV}\n\tAPPEND ${ARGS}\n\tINITRD ../initramfs-gentoo\n" /boot/syslinux/syslinux.cfg || eerror "Adding label to syslinux configuration failed!"
		else
			eerror "Adding label to syslinux configuration failed as there are no arguments"
		fi
	fi
}

pkg_prerm() {
	# Remove label from syslinux config
	sed -i "/^LABEL gentoo-${PV}$/,/^$/d" /boot/syslinux/syslinux.cfg || eerror "Removing label from syslinux fonfiguration failed!"
}