refind: rewrite kernel post-install hook

- refind-install only supports installing into
{/boot,/boot/efi,/efi}/EFI/{BOOT,refind}/refind.conf, there're no point
trying to fiddling with anything else.

- That configuration file should always exist, simplify all logic behind
  that decision.

srcpkgs/refind/files/kernel.post-install

@@ -13,41 +13,39 @@ if [ "z$UPDATE_REFIND_CONF" != "z1" ]; then
 fi
 
 # Default refind.conf
-: "${REFIND_CONF:=/boot/EFI/refind/refind.conf}"
-
-zrefind_dir="${REFIND_CONF%/*}"
-mkdir -p "$zrefind_dir"
-touch "$REFIND_CONF"
+: "${REFIND_CONF:=boot/EFI/refind/refind.conf}"
+REFIND_CONF=${REFIND_CONF#/}
+[ -n "${REFIND_CONF}" ] || exit 0
+
+# refind-install only supports those two paths
+refind_dir=
+case "$REFIND_CONF" in
+*/EFI/[Bb][Oo][Oo][Tt]/refind.conf)
+	refind_dir="/EFI/BOOT" ;;
+*/EFI/refind/refind.conf)
+	refind_dir="/EFI/refind" ;;
+*)
+	echo >&2 "unsupported \$REFIND_CONF: $REFIND_CONF"
+	exit 1 ;;
+esac
 
 tmpfile=$(mktemp /tmp/refind.XXXXXXX)
 
-zefi_mountpoint=$(df -P "$REFIND_CONF" | awk 'NR==2{print $6}')
-zicon="${zrefind_dir#$zefi_mountpoint}/icons/os_void.png"
 zversion=$(echo "$VERSION" | sed 's/[.]/[.]/g')
 
-zentry=$(cat <<EOF
+(
+	cat <<EOF
 menuentry "Void Linux $VERSION" {
-	icon     $zicon
+	icon     $refind_dir/icons/os_void.png
 	volume   "Void Linux"
 	loader   /vmlinuz-$VERSION
 	initrd   /initramfs-$VERSION.img
 	options  "$OPTIONS"
 }
 EOF
-)
-
-<"$REFIND_CONF" \
-sed "/^menuentry \"Void Linux $zversion\" [{]\$/,/[}]/d" |
-awk -v "entry=$zentry" '
-	/^timeout / {t=1}
-	/^menuentry / && !x {print entry; x=1}
-	1
-	END {
-		if (!x) {print entry}
-		if (!t) {print "timeout 20"}
-	}
-	' \
->"$tmpfile"
+	# Clean itself if this is force reconfigure
+	sed "/^menuentry \"Void Linux $zversion\" [{]\$/,/[}]/d" <"$REFIND_CONF"
+) >"$tmpfile"
 
 mv "$tmpfile" "$REFIND_CONF"
 

srcpkgs/refind/template

@@ -1,7 +1,7 @@
 # Template file for 'refind'
 pkgname=refind
 version=0.12.0
-revision=1
+revision=2
 archs="x86_64* i686* aarch64*"
 makedepends="gnu-efi-libs"
 depends="bash dosfstools efibootmgr"