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# Copyright 2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit mount-boot
MY_P=vanilla-kernel-${PV}-r1-1
DESCRIPTION="Pre-built vanilla Linux kernel"
HOMEPAGE="https://www.kernel.org/"
SRC_URI="
amd64? (
https://dev.gentoo.org/~mgorny/binpkg/amd64/kernel/sys-kernel/vanilla-kernel/${MY_P}.xpak
-> ${MY_P}.amd64.xpak
)
x86? (
https://dev.gentoo.org/~mgorny/binpkg/x86/kernel/sys-kernel/vanilla-kernel/${MY_P}.xpak
-> ${MY_P}.x86.xpak
)"
S=${WORKDIR}
LICENSE="GPL-2"
SLOT="${PV}"
KEYWORDS="~amd64 ~x86"
IUSE="+initramfs"
# install-DEPEND actually
# note: we need installkernel with initramfs support!
RDEPEND="
|| (
sys-kernel/installkernel-gentoo
sys-kernel/installkernel-systemd-boot
)
initramfs? ( sys-kernel/dracut )
!sys-kernel/vanilla-kernel:${SLOT}"
QA_PREBUILT='*'
pkg_pretend() {
mount-boot_pkg_pretend
ewarn "This is an experimental package. The built kernel and/or initramfs"
ewarn "may not work at all or fail with your bootloader configuration. Please"
ewarn "make sure to keep a backup kernel available before testing it."
}
src_unpack() {
ebegin "Unpacking ${MY_P}.${ARCH}.xpak"
tar -x < <(xz -c -d --single-stream "${DISTDIR}/${MY_P}.${ARCH}.xpak")
eend ${?} || die "Unpacking ${MY_P} failed"
}
src_install() {
# cp is easier for preserving +x bits
cp -p -R . "${ED}" || die
}
pkg_preinst() {
:
}
pkg_postinst() {
if [[ -z ${ROOT} ]]; then
mount-boot_pkg_preinst
if use initramfs; then
ebegin "Building initramfs via dracut"
# putting it alongside kernel image as 'initrd' makes
# kernel-install happier
dracut --force "${EROOT}/usr/src/linux-${PV}/initrd" "${PV}"
eend ${?} || die "Building initramfs failed"
fi
ebegin "Installing the kernel via installkernel"
# note: .config is taken relatively to System.map;
# initrd relatively to bzImage
installkernel "${PV}" \
"${EROOT}/usr/src/linux-${PV}/bzImage" \
"${EROOT}/usr/src/linux-${PV}/System.map"
eend ${?} || die "Installing the kernel failed"
fi
local symlink_target=$(readlink "${EROOT}"/usr/src/linux)
local symlink_ver=${symlink_target#linux-}
if [[ ${symlink_target} == linux-* && -z ${symlink_ver//[0-9.]/} ]]
then
local symlink_pkg=${CATEGORY}/${PN}-${symlink_ver}
# if the current target is either being replaced, or still
# installed (probably depclean candidate), update the symlink
if has "${symlink_ver}" ${REPLACING_VERSIONS} ||
has_version -r "~${symlink_pkg}"
then
ebegin "Updating /usr/src/linux symlink"
ln -f -n -s linux-${PV} "${EROOT}"/usr/src/linux
eend ${?}
fi
fi
}
pkg_prerm() {
:
}
pkg_postrm() {
rm -f "${EROOT}/usr/src/linux-${PV}/initrd" &&
rmdir --ignore-fail-on-non-empty "${EROOT}/usr/src/linux-${PV}"
}
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