# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit mount-boot

# Go to e.g. https://github.com/raspberrypi/firmware/tree/1.20211029/modules
# for the latest tag to see which kernel version it corresponds to.

DESCRIPTION="Raspberry Pi (all versions) kernel and modules"
HOMEPAGE="https://github.com/raspberrypi/firmware"
if [[ ${PV} == 9999 ]]; then
	EGIT_REPO_URI="https://github.com/raspberrypi/firmware"
	EGIT_CLONE_TYPE="shallow"
	inherit git-r3
else
	[[ $(ver_cut 4) == p ]] || die "Unsupported version format, tweak the ebuild."
	MY_PV="1.$(ver_cut 5)"

	SRC_URI="https://github.com/raspberrypi/firmware/archive/${MY_PV}.tar.gz -> raspberrypi-firmware-${MY_PV}.tar.gz"
	S="${WORKDIR}/firmware-${MY_PV}"
	KEYWORDS="-* ~arm ~arm64"
fi

LICENSE="GPL-2 raspberrypi-videocore-bin"
SLOT="0"
RESTRICT="binchecks strip"

# Temporary safety measure to prevent ending up with a pair of
# sys-kernel/raspberrypi-image and sys-boot/raspberrypi-firmware
# both of which installed device tree files.
# Restore to simply "sys-boot/raspberrypi-firmware" when the mentioned version
# and all older ones are deleted.
RDEPEND=">sys-boot/raspberrypi-firmware-1.20190709"

src_prepare() {
	default

	local expected_kernel_version="$(ver_cut 1-3)+"
	local found_kernel_version=( "${S}"/modules/$(ver_cut 1).*.*+ )

	found_kernel_version=${found_kernel_version[0]}
	found_kernel_version=${found_kernel_version##*/}

	if [[ ${expected_kernel_version} != ${found_kernel_version} ]] ; then
		eerror "Expected kernel version: ${expected_kernel_version}"
		eerror "Found kernel version: ${found_kernel_version}"
		die "Please fix ebuild version to contain ${found_kernel_version}!"
	fi

	if [[ ! -d "${S}"/modules/${expected_kernel_version} ]] ; then
		eerror "Kernel module directory is missing!"
		die "${S}/modules/${expected_kernel_version} not found!"
	fi
}

src_install() {
	insinto /lib/modules
	doins -r modules/*
	insinto /boot
	doins boot/*.img

	doins boot/*.dtb
	doins -r boot/overlays
}