Split micrcode detection to separate plugin.

Always copy microcode to the staging are as 'microcode*'.

indentation

2 files changed, 29 insertions, 10 deletions

diff --git a/kernel-install/40-microcode.install b/kernel-install/40-microcode.install
new file mode 100755
index 0000000..375ca42
--- /dev/null
+++ b/kernel-install/40-microcode.install
@@ -0,0 +1,26 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+COMMAND="${1:?}"
+# shellcheck disable=SC2034
+KERNEL_VERSION="${2:?}"
+# shellcheck disable=SC2034
+ENTRY_DIR_ABS="$3"
+# shellcheck disable=SC2034
+KERNEL_IMAGE="$4"
+
+set -e
+
+[[ "$COMMAND" = "add" ]] || exit 0
+
+for dir in "${KERNEL_INSTALL_BOOT_ROOT}" "/boot"; do
+    for microcode in "intel-ucode.img" "amd-ucode.img" "intel-uc.img" "amd-uc.img" "early_ucode.cpio" "microcode.cpio"; do
+        if [[ -f "${dir}/${microcode}" ]]; then
+            install -m 0644 "${dir}/${microcode}" "${KERNEL_INSTALL_STAGING_AREA}/microcode-${microcode}" || {
+                echo "Error: could not copy '$microcode' to the staging area." >&2
+                exit 1
+            }
+            (( KERNEL_INSTALL_VERBOSE )) && printf "+ Found microcode image %s\n" "$microcode"
+        fi
+    done
+done
diff --git a/kernel-install/50-mkinitcpio.install b/kernel-install/50-mkinitcpio.install
index 2d6a0dc..5fd8b40 100755
--- a/kernel-install/50-mkinitcpio.install
+++ b/kernel-install/50-mkinitcpio.install
@@ -22,16 +22,9 @@ case "$KERNEL_INSTALL_LAYOUT" in
         else
             GENERATOR_CMD+=(--kernelimage "$KERNEL_IMAGE")
 
-            # autodetecting microcode images by known location
-            # They're from GRUB_EARLY_INITRD_LINUX_STOCK in https://git.savannah.gnu.org/cgit/grub.git/tree/util/grub-mkconfig.in.
-            ucode_names=("intel-ucode.img" "amd-ucode.img" "intel-uc.img" "amd-uc.img" "early_ucode.cpio" "microcode.cpio")
-            for ucode_name in "${ucode_names[@]}"; do
-                for dir in "$KERNEL_INSTALL_BOOT_ROOT" "/boot"; do
-                    if [[ -f "${dir}/${ucode_name}" ]]; then
-                        (( KERNEL_INSTALL_VERBOSE )) && printf "+ Found microcode image %s\n" "$ucode_name"
-                        GENERATOR_CMD+=(--microcode "${dir}/$ucode_name")
-                    fi
-                done
+            # Add microcode if found in staging area
+            for microcode in "${KERNEL_INSTALL_STAGING_AREA}"/microcode*; do
+                [[ -f "$microcode" ]] && GENERATOR_CMD+=(--microcode "$microcode")
             done
 
             GENERATOR_CMD+=(-U "$KERNEL_INSTALL_STAGING_AREA/uki.efi" )