From bdd56b68122666ee19d8e9a755474b696a88fc23 Mon Sep 17 00:00:00 2001
From: Andrew Ammerlaan <andrewammerlaan@gentoo.org>
Date: Fri, 12 Jan 2024 12:03:30 +0100
Subject: sys-kernel/installkernel-gentoo: add 14

Changelog:
- added grub-mkconfig plugin for systemd's kernel-install
- call systemd's kernel-install if it is installed, this can be controlled
with the SYSTEMD_KERNEL_INSTALL env var, whose default is set by the ebuild
depending on USE=systemd
- imported plugins from installkernel-systemd
- clarified warning messages when dracut/ukify is not installed
- set some default install.conf based on the flags we already have for
the "legacy" install anyway. Use /etc/ instead of /usr/lib because systemd
already installs a dummy file to /usr/lib and we would have a file conflict
with this.

Bug: https://bugs.gentoo.org/917145
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>
---
 sys-kernel/installkernel-gentoo/Manifest           |  1 +
 .../installkernel-gentoo-14.ebuild                 | 85 ++++++++++++++++++++++
 sys-kernel/installkernel-gentoo/metadata.xml       |  1 +
 3 files changed, 87 insertions(+)
 create mode 100644 sys-kernel/installkernel-gentoo/installkernel-gentoo-14.ebuild

diff --git a/sys-kernel/installkernel-gentoo/Manifest b/sys-kernel/installkernel-gentoo/Manifest
index 92cd07a0ba25..e74c54c2b028 100644
--- a/sys-kernel/installkernel-gentoo/Manifest
+++ b/sys-kernel/installkernel-gentoo/Manifest
@@ -1 +1,2 @@
 DIST installkernel-gentoo-12.tar.gz 4385 BLAKE2B 2f55442d76020cfcd42fb83f14ff1f517dcbbd102c338e84f092d56ba513c02644401b3b75ee7c45c8e763eb0e27225bbfe6576bc4e34841694076d935328c9a SHA512 b5620bf7a36081da929645d112a9160f89f1de09c00d3b6093efbe57d8ff1a5ebcd0b65e68491d225f61b7732bce8f76ff8baecd24969715f40dc818e4302de2
+DIST installkernel-gentoo-14.tar.gz 5501 BLAKE2B cf7b47483440ec84f8aa17e1c6e585259ff13cf9ff76c89a262799c5143f3f994c0babe5f6ab0abf25f1a359ba3ea39e0027eb2df6c6b2c7a8627dab550f6504 SHA512 f6af5ee009738fa503b575d3464494c8296b3b986ac9b8fab074f38f98159209b4d2ce0cf555890d5bfcfa506ab08d334af97798f695d895863bcb68b3ecea66
diff --git a/sys-kernel/installkernel-gentoo/installkernel-gentoo-14.ebuild b/sys-kernel/installkernel-gentoo/installkernel-gentoo-14.ebuild
new file mode 100644
index 000000000000..4be27a583bfa
--- /dev/null
+++ b/sys-kernel/installkernel-gentoo/installkernel-gentoo-14.ebuild
@@ -0,0 +1,85 @@
+# Copyright 2019-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DESCRIPTION="Gentoo fork of installkernel script from debianutils"
+HOMEPAGE="https://github.com/projg2/installkernel-gentoo"
+SRC_URI="https://github.com/projg2/installkernel-gentoo/archive/v${PV}.tar.gz
+	-> ${P}.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x86-linux"
+IUSE="+dracut grub systemd uki ukify"
+
+RDEPEND="
+	>=sys-apps/debianutils-4.9-r1
+	systemd? (
+		|| (
+			sys-apps/systemd[kernel-install(-)]
+			sys-apps/systemd-utils[kernel-install(-)]
+		)
+	)
+"
+
+src_install() {
+	keepdir /etc/kernel/postinst.d
+	keepdir /etc/kernel/preinst.d
+
+	if use dracut; then
+		exeinto /etc/kernel/preinst.d
+		doexe hooks/50-dracut.install
+	fi
+
+	if use grub; then
+		exeinto /etc/kernel/postinst.d
+		doexe hooks/91-grub-mkconfig.install
+	fi
+
+	if use uki; then
+		exeinto /etc/kernel/postinst.d
+		doexe hooks/90-uki-copy.install
+	fi
+
+	if use ukify; then
+		exeinto /etc/kernel/preinst.d
+		doexe hooks/60-ukify.install
+	fi
+
+	if use systemd; then
+		sed -e 's/${SYSTEMD_KERNEL_INSTALL:=0}/${SYSTEMD_KERNEL_INSTALL:=1}/g' -i installkernel ||
+			die "enabling systemd's kernel-install failed"
+	fi
+
+	# set some default config using the flags we have anyway
+	touch "${T}/install.conf" || die
+	if use uki; then
+		echo "layout=uki" >> "${T}/install.conf" || die
+	elif use grub; then
+		echo "layout=grub" >> "${T}/install.conf" || die
+	else
+		echo "layout=bls" >> "${T}/install.conf" || die
+	fi
+	if use dracut; then
+		echo "initrd_generator=dracut" >> "${T}/install.conf" || die
+		if ! use ukify; then
+			echo "uki_generator=dracut" >> "${T}/install.conf" || die
+		fi
+	fi
+	if use ukify; then
+		echo "uki_generator=ukify" >> "${T}/install.conf" || die
+	fi
+
+	if [[ -s "${T}/install.conf" ]]; then
+		insinto /etc/kernel
+		doins "${T}/install.conf"
+	fi
+
+	exeinto /usr/lib/kernel/install.d
+	doexe hooks/systemd/*.install
+
+	into /
+	dosbin installkernel
+	doman installkernel.8
+}
diff --git a/sys-kernel/installkernel-gentoo/metadata.xml b/sys-kernel/installkernel-gentoo/metadata.xml
index 11418da8042d..65393ba6a433 100644
--- a/sys-kernel/installkernel-gentoo/metadata.xml
+++ b/sys-kernel/installkernel-gentoo/metadata.xml
@@ -8,6 +8,7 @@
 	<use>
 		<flag name="dracut">Generate an initrd or UKI on each kernel installation</flag>
 		<flag name="grub">Re-generate grub.cfg on each kernel installation</flag>
+		<flag name="systemd">Use systemd's kernel-install to install kernels'</flag>
 		<flag name="uki">Install UKIs to ESP/EFI/Linux for EFI stub booting and/or bootloaders with support for auto-discovering UKIs</flag>
 		<flag name="ukify">Build an UKI with systemd's ukify on each kernel installation</flag>
 	</use>
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