From b7929af35cdd925251070d888e044a749d972c43 Mon Sep 17 00:00:00 2001
From: David Guglielmi <david.guglielmi@gmail.com>
Date: Thu, 22 May 2025 21:34:57 +0200
Subject: [PATCH] sys-boot/grub-efi-image: add 0-r3

---
 .../grub-efi-image/grub-efi-image-0-r3.ebuild | 91 +++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 sys-boot/grub-efi-image/grub-efi-image-0-r3.ebuild

diff --git a/sys-boot/grub-efi-image/grub-efi-image-0-r3.ebuild b/sys-boot/grub-efi-image/grub-efi-image-0-r3.ebuild
new file mode 100644
index 0000000..7922449
--- /dev/null
+++ b/sys-boot/grub-efi-image/grub-efi-image-0-r3.ebuild
@@ -0,0 +1,91 @@
+# Copyright 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit mount-boot
+
+DESCRIPTION="Make GRUB EFI boot image"
+HOMEPAGE="https://wiki.gentoo.org/wiki/No_homepage"
+
+S="${WORKDIR}"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~x86"
+
+IUSE="+grub_platforms_efi-64 grub_platforms_efi-32 fontsize-24 fontsize-32"
+
+DEPEND="
+	sys-boot/grub:2=[fonts]
+"
+RDEPEND="${DEPEND}"
+BDEPEND="
+	sys-apps/util-linux
+	media-fonts/dejavu
+"
+
+EFI_VENDOR="gentoo"
+GRUB_FONT_SIZE="16"
+
+src_prepare() {
+	# grub-probe --target=fs_uuid doesn't work here
+	BOOT_DEV="$(grub-probe --target=device /boot)"
+	BOOT_PART_UUID="$(lsblk -o UUID -n ${BOOT_DEV})"
+	GRUB_VERSION="$(best_version sys-boot/grub:2)"
+
+	[[ -z $BOOT_PART_UUID ]] && die "Can't find /boot partition UUID"
+	sed -e 's#@GENTOO_GRUB_VERSION@#'${GRUB_VERSION/*\/grub-/}'#g' \
+		"${FILESDIR}"/sbat.csv.in > sbat.csv || die
+
+	mkdir -p "${WORKDIR}/memdisk/fonts" || die
+	sed -e 's#@BOOT_PART_UUID@#'${BOOT_PART_UUID}'#g' \
+		"${FILESDIR}/grub-memdisk.cfg.in" > memdisk/grub.cfg || die
+
+	cp "${FILESDIR}"/grub-bootstrap.cfg "${WORKDIR}"/
+
+	eapply_user
+}
+
+src_compile() {
+	local plateform
+	local efi_name
+
+	if use grub_platforms_efi-64; then
+		platform="x86_64-efi"
+		efi_name="x64"
+	elif use grub_platforms_efi-32; then
+		platform="i386-efi"
+		efi_name="x32"
+	else
+		die "Unsupported platform"
+	fi
+
+	if use fontsize-24; then
+		GRUB_FONT_SIZE="24"
+	elif use fontsize-32; then
+		GRUB_FONT_SIZE="32"
+	fi
+
+	grub-mkfont \
+		-s "${GRUB_FONT_SIZE}" \
+		-o "${WORKDIR}"/memdisk/fonts/unicode.pf2 \
+		/usr/share/fonts/dejavu/DejaVuSansMono.ttf
+
+	tar -cf "${WORKDIR}"/memdisk.tar -C "${WORKDIR}"/memdisk .
+
+	grub-mkimage \
+		-O "${platform}" \
+		-o "${WORKDIR}"/grub${efi_name}.efi \
+		-c "${WORKDIR}"/grub-bootstrap.cfg \
+		-d "/usr/lib/grub/${platform}" \
+		-m "${WORKDIR}"/memdisk.tar \
+		-p "/EFI/gentoo" \
+		--sbat "${WORKDIR}"/sbat.csv \
+		$(cat "${FILESDIR}"/grub-efi-modules)
+}
+
+src_install() {
+	insinto /usr/lib/"${PN}"
+	doins grub*.efi
+}