Use kernel-install to manage BLS (rhbz#2209779)

- Use KERNEL_INSTALL_PLUGINS to define configuration logic
 - Require systemd > 252 that has support for KERNEL_INSTALL_PLUGINS

memtest86+.kernel-install-plugin

@@ -0,0 +1,98 @@
+#!/usr/bin/bash
+
+# Sanity Checks
+if ! [[ $KERNEL_INSTALL_MACHINE_ID ]]; then
+    exit 0
+fi
+if ! [[ $KERNEL_INSTALL_BOOT_ROOT ]]; then
+    exit 0
+fi
+
+# Setup variables
+[[ -f /etc/default/grub ]] && . /etc/default/grub
+[[ -f /etc/os-release ]] && . /etc/os-release
+
+COMMAND="$1"
+MEMTEST_VERSION="$2"
+BOOT_DIR_ABS="$3"
+MEMTEST_IMAGE="$4"
+
+IMAGE_DIR="${MEMTEST_IMAGE%/*}"
+BOOT_ROOT="${KERNEL_INSTALL_BOOT_ROOT}"
+MACHINE_ID="${KERNEL_INSTALL_MACHINE_ID}"
+BLS_DIR="${BOOT_ROOT}/loader/entries"
+BLS_ENTRY="${BLS_DIR}/${MACHINE_ID}-0-memtest86+.conf"
+
+# Setup functions
+mkbls_grub() {
+    local memtestver=$1 && shift
+    local memtestimg=$1 && shift
+
+    cat <<EOF
+title Memtest86+ (${memtestimg}-${memtestver})
+version 0-${memtestver}-memtest86+
+linux /${memtestimg}
+grub_users \$grub_users
+grub_arg --unrestricted
+grub_class ${ID}
+EOF
+}
+
+# If ${BOOT_DIR_ABS} exists, some other boot loader is active.
+[[ -d "${BOOT_DIR_ABS}" ]] && exit 0
+
+case "$COMMAND" in
+    add)
+	# Install into BOOT_ROOT, if not already there
+        if [[ "${MEMTEST_DIR}" != "${BOOT_ROOT}" ]]; then
+            for i in \
+                "$MEMTEST_IMAGE"
+            do
+                [[ -e "$i" ]] || continue
+                rm -f "${BOOT_ROOT}/${i##*/}"
+                cp -aT "$i" "${BOOT_ROOT}/${i##*/}"
+                command -v restorecon &>/dev/null && \
+                    restorecon -R "${BOOT_ROOT}/${i##*/}"
+            done
+        fi
+
+	# Generate GRUB BLS, if enabled
+        if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]]; then
+            [[ -d "$BLS_DIR" ]] || mkdir -m 0700 -p "$BLS_DIR"
+            mkbls_grub "${MEMTEST_VERSION}" "${MEMTEST_IMAGE##*/}" > "${BLS_ENTRY}"
+            command -v restorecon &>/dev/null && restorecon -R "${BLS_ENTRY}"
+
+            MEMTEST_LOC="$(grep '^linux[ \t]' "${BLS_ENTRY}" | sed -e 's,^linux[ \t]*,,')"
+            if [[ "$(grub2-probe --device $(grub2-probe --target=device /) --target=fs)" == "btrfs" &&
+		      "${SUSE_BTRFS_SNAPSHOT_BOOTING}" == "true" ]]; then
+                MEMTEST_RELPATH="$(grub2-mkrelpath -r ${BOOT_ROOT}${MEMTEST_LOC})"
+            else
+                MEMTEST_RELPATH="$(grub2-mkrelpath ${BOOT_ROOT}${MEMTEST_LOC})"
+            fi
+
+            BOOTPREFIX="$(dirname ${MEMTEST_RELPATH})"
+
+            if [[ "${MEMTEST_LOC}" != "${MEMTEST_RELPATH}" ]]; then
+                sed -i -e "s,^linux.*,linux ${BOOTPREFIX}${MEMTEST_LOC},g" "${BLS_ENTRY}"
+            fi
+
+            exit 77
+        fi
+        ;;
+    remove)
+        # Find MEMTEST_IMAGE location in BLS_ENTRY, delete both MEMTEST_IMAGE and BLS_ENTRY
+        if [[ "x${GRUB_ENABLE_BLSCFG}" = "xtrue" ]]; then
+	    if [[ -f "${BLS_ENTRY}" ]]; then
+	            MEMTEST_IMAGE="$(grep '^linux[ \t]' "${BLS_ENTRY}" | sed -e 's,^linux[ \t]*,,')"
+	            if [[ -f "${BOOT_ROOT}${MEMTEST_IMAGE}" ]]; then
+	                    rm -f "${BOOT_ROOT}${MEMTEST_IMAGE}"
+                    fi
+                    rm -f "${BLS_ENTRY}"
+            fi
+
+            exit 77
+        fi
+        ;;
+    *)
+        ;;
+esac

memtest86+.spec

@@ -15,16 +15,18 @@ Memtest86+.
 %global mt_isa ia32
 %endif
 
-Name:                memtest86+
+Name:          memtest86+
-Version:             6.20
+Version:       6.20
-Release:             %autorelease
+Release:       %autorelease
-Summary:             Stand-alone memory tester for x86-64 computers
+Summary:       Stand-alone memory tester for x86-64 computers
-License:             GPL-2.0-only
+License:       GPL-2.0-only
-URL:                 https://www.memtest.org/
+URL:           https://www.memtest.org/
-Source0:             https://github.com/memtest86plus/memtest86plus/archive/v%{version}/memtest86-plus-%{version}.tar.gz
+Source0:       https://github.com/memtest86plus/memtest86plus/archive/v%{version}/memtest86-plus-%{version}.tar.gz
+Source1:       memtest86+.kernel-install-plugin
 
-BuildRequires:       gcc, make, xorriso, dosfstools, mtools
+BuildRequires: gcc, make, xorriso, dosfstools, mtools
-ExclusiveArch:       x86_64 %{ix86}
+Requires(pre): systemd-udev >= 252
+ExclusiveArch: x86_64 %{ix86}
 
 %description
 %wordwrap -v common_description
@@ -49,6 +51,7 @@ pushd build%{__isa_bits}
 install -m 0644 memtest.efi %{buildroot}%{_libdir}/%{name}/memtest86+%{mt_isa}.efi
 install -m 0644 memtest.bin %{buildroot}%{_libdir}/%{name}/memtest86+%{mt_isa}.bin
 install -m 0644 memtest.iso %{buildroot}%{_datarootdir}/%{name}/memtest86+%{mt_isa}.iso
+install -m 0755 %{SOURCE1} %{buildroot}%{_libdir}/%{name}/memtest86+.kernel-install-plugin
 popd
 
 
@@ -56,27 +59,23 @@ popd
 %license LICENSE
 %doc README.md
 %{_libdir}/%{name}/memtest86+%{mt_isa}.*
+%{_libdir}/%{name}/memtest86+.kernel-install-plugin
 %{_datarootdir}/%{name}/memtest86+%{mt_isa}.iso
 
 %posttrans
-install -m 0644 %{_libdir}/%{name}/memtest86+%{mt_isa}.* /boot/
+MEMTEST_IMAGE="memtest86+%{mt_isa}.bin"
 if [ -d /sys/firmware/efi/ ]; then
-cat << EOBLSEFI > /boot/loader/entries/`cat /etc/machine-id`-0-memtest86+-%{version}-uefi.%{mt_isa}.conf
+MEMTEST_IMAGE="memtest86+%{mt_isa}.efi"
-title Memtest86+ v%{version} %{mt_isa} UEFI
-linux /memtest86+%{mt_isa}.efi
-EOBLSEFI
-else
-cat << EOBLSBIN > /boot/loader/entries/`cat /etc/machine-id`-0-memtest86+-%{version}-bios.%{mt_isa}.conf
-title Memtest86+ v%{version} %{mt_isa} BIOS
-linux /memtest86+%{mt_isa}.bin
-EOBLSBIN
 fi
+KERNEL_INSTALL_PLUGINS=%{_libdir}/%{name}/memtest86+.kernel-install-plugin \
+kernel-install add %{version} %{_libdir}/%{name}/${MEMTEST_IMAGE}
 exit 0
 
-%postun
+
+%preun
 if [ $1 -eq 0 ]; then
-rm -f /boot/memtest86+%{mt_isa}.*
+KERNEL_INSTALL_PLUGINS=%{_libdir}/%{name}/memtest86+.kernel-install-plugin \
-rm -f /boot/loader/entries/`cat /etc/machine-id`-0-memtest86+-%{version}-*.%{mt_isa}.conf
+kernel-install remove %{version}
 fi
 exit 0