[PATCH 05/20] grub: generate configs boot/grub/grub.cfg and EFI/BOOT/grub.cfg if necessary

[Anton Midyukov]

---
 .../grub/scripts.d/20-propagator-ramdisk      | 10 +++---
 .../grub/scripts.d/20-propagator-rescue-hash  |  8 +++--
 features.in/grub/stage1/scripts.d/01-grub     | 33 +++++++++++++++----
 3 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/features.in/grub/scripts.d/20-propagator-ramdisk b/features.in/grub/scripts.d/20-propagator-ramdisk
index 059c60ef76..04470b6c85 100755
--- a/features.in/grub/scripts.d/20-propagator-ramdisk
+++ b/features.in/grub/scripts.d/20-propagator-ramdisk
@@ -5,13 +5,11 @@
 
 cd "$WORKDIR"
 
-[ -d boot/grub ] || exit 0
+[ -f boot/grub/grub.cfg -o -f EFI/BOOT/grub.cfg ] || exit 0
 
-cfgs="$(find boot/grub -name '*.cfg')"
-[ -n "$cfgs" ] || {
-	echo "${0##*/}: did not find any config under boot/grub " >&2
-	exit 1
-}
+cfgs=
+[ ! -f boot/grub/grub.cfg ] || cfgs+='boot/grub/grub.cfg '
+[ ! -f EFI/BOOT/grub.cfg ] || cfgs+='EFI/BOOT/grub.cfg'
 
 # apply size census while looking for potential squashfs images
 find -maxdepth 1 -type f -size +1M \
diff --git a/features.in/grub/scripts.d/20-propagator-rescue-hash b/features.in/grub/scripts.d/20-propagator-rescue-hash
index 92c5972a65..3ca61591bc 100755
--- a/features.in/grub/scripts.d/20-propagator-rescue-hash
+++ b/features.in/grub/scripts.d/20-propagator-rescue-hash
@@ -5,12 +5,14 @@
 
 cd "$WORKDIR"
 
-[ -d boot/grub ] || exit 0
+[ -f boot/grub/grub.cfg -o -f EFI/BOOT/grub.cfg ] || exit 0
 
-grep -qs "@rescue_hash@" boot/grub/*.cfg || exit 0
+cfgs=
+[ ! -f boot/grub/grub.cfg ] || cfgs+='boot/grub/grub.cfg '
+[ ! -f EFI/BOOT/grub.cfg ] || cfgs+='EFI/BOOT/grub.cfg'
 
 find -maxdepth 1 -type f -name rescue \
 | while read image; do
 	rescue_hash="$(sha256sum -b "$image" | cut -f1 -d' ')"
-	sed -i "s, ÎÁ rescue_hash@,$rescue_hash," boot/grub/*.cfg
+	sed -i "s, ÎÁ rescue_hash@,$rescue_hash," $cfgs
 done
diff --git a/features.in/grub/stage1/scripts.d/01-grub b/features.in/grub/stage1/scripts.d/01-grub
index 4c7d5e23ee..eeb3c49760 100755
--- a/features.in/grub/stage1/scripts.d/01-grub
+++ b/features.in/grub/stage1/scripts.d/01-grub
@@ -2,7 +2,8 @@
 # gather grub configuration from snippets;
 # copy modules; see also this feature's generate.mk
 
-CFG="grub.cfg"
+CFG="$WORKDIR/boot/grub/grub.cfg"
+CFG_EFI="$WORKDIR/EFI/BOOT/grub.cfg"
 
 if [ -n "$GLOBAL_EFI_BOOTLOADER" -a ! "$GLOBAL_EFI_BOOTLOADER" = "grub-efi" ]; then
 	rm -fr "$WORKDIR/boot"
@@ -27,21 +28,41 @@ if [ -n "${GRUB_FILES% }" ]; then
 fi
 
 # number ordering sponsored by shell's pathname expansion
-grep -hv '^#' .in/[0-9][0-9]*.cfg > "$CFG"
+case "$GLOBAL_BOOTLOADER" in
+	grubx86boot)
+		grep -hv '^#' $(find .in/*.cfg -not -name *_efi.cfg) > "$CFG" ;;
+	ieee1275boot)
+		grep -hv '^#' $(find .in/*.cfg -not -name *_efi.cfg -not -name *_x86.cfg) > "$CFG" ;;
+esac
+
+if [ "$GLOBAL_EFI_BOOTLOADER" = "grub-efi" ]; then
+	mkdir -p "$WORKDIR/EFI/BOOT"
+	grep -hv '^#' $(find .in/*.cfg -not -name *_x86.cfg) > "$CFG_EFI"
+fi
 
 # there should be DEFAULT directive there (at least for alterator-netinst)
-if ! grep -i '^default' .in/[0-9][0-9]*.cfg; then
-	DEFAULT="$(grep -i '\-\-id ' .in/[0-9][0-9]*.cfg | head -1 | rev| cut -f2 -d' ' |rev)"
+default_change() {
+local CFG=$1
+if ! grep -i '^default' "$CFG"; then
+	DEFAULT="$(grep -i '\-\-id ' "$CFG" | head -1 | rev| cut -f2 -d' ' |rev)"
 	if [ -n "$DEFAULT" ]; then
 		echo "default=$DEFAULT" >> "$CFG"
 	else
-		echo "error: no DEFAULT or UI directive and cannot guess" >&2
+		echo "error: no DEFAULT or UI directive and cannot guess for $CFG" >&2
 		exit 1
 	fi
 fi
+}
+
+[ ! -f "$CFG" ] || default_change "$CFG"
+[ ! -f "$CFG_EFI" ] || default_change "$CFG_EFI"
 
 # snippets are not going into the actual image
-if [ "$DEBUG" != 2 ]; then rm -r .in/; fi
+if [ "$DEBUG" != 2 ]; then
+	rm -r .in/
+	cd ..
+	[ -f "$CFG" ] || rm -r grub/
+fi
 
 # NB: there will be final macro expansion based on actual image sizes
 #     done by features.in/grub/scripts.d/20-propagator-ramdisk
-- 
2.24.1


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