add grub feature

features.in/grub/cfg.in/00defaults.cfg

@@ -0,0 +1,17 @@
+insmod echo
+insmod gzio
+insmod minicmd
+insmod normal
+insmod test
+set timeout=@timeout@
+
+if [ $grub_cpu = x86_64 -o $grub_cpu = i386 ]; then
+    if [ $grub_platform = efi ]; then
+        linux_suffix=efi
+    elif [ $grub_platform = pc ]; then
+        linux_suffix=16
+    else
+        linux_suffix=
+else
+    linux_suffix=
+fi

features.in/grub/cfg.in/20install2.cfg

@@ -0,0 +1,6 @@
+
+default='linux'
+menuentry 'Install ALT @relname@' --hotkey 'i' --id 'linux' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot automatic=method:cdrom ramdisk_size=@altinst_size@ vga=@bootvga@ @bootargs@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/25install-vnc-connect.cfg

@@ -0,0 +1,5 @@
+
+menuentry 'Install ALT @relname@ (headless with DHCP+VNC client) (edit to set server IP address)' --id 'vncconnect' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot automatic=method:cdrom ramdisk_size=@altinst_size@ showopts @bootargs@ headless no_alt_virt_keyboard vncconnect=IP
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/25install-vnc-listen.cfg

@@ -0,0 +1,6 @@
+
+menuentry 'Install ALT @relname@ (headless with DHCP+VNC) (password VNCPWD)' --id 'vncpasswd' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot automatic=method:cdrom ramdisk_size=@altinst_size@ showopts @bootargs@ headless no_alt_virt_keyboard vncpassword=VNCPWD
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}
+

features.in/grub/cfg.in/30live.cfg

@@ -0,0 +1,6 @@
+menuentry 'LiveCD (no hard disk needed)' --id 'live' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot live automatic=method:cdrom ramdisk_size=@live_size@ stagename=live showopts lowmem vga=@bootvga@ @bootargs@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}
+
+

features.in/grub/cfg.in/32live_rw.cfg

@@ -0,0 +1,4 @@
+menuentry 'LiveCD with sessions support' --id 'session' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot live automatic=method:cdrom ramdisk_size=@live_size@ stagename=live showopts live_rw vga=@bootvga@ @bootargs@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/80rescue.cfg

@@ -0,0 +1,4 @@
+menuentry 'Rescue LiveCD' --id 'rescue' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot live automatic=method:cdrom ramdisk_size=@rescue_size@ stagename=rescue splash=0 showopts @rescue_bootargs@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/82rescue_rw.cfg

@@ -0,0 +1,4 @@
+menuentry 'Rescue with sessions support' --id 'rescue_session' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot live automatic=method:cdrom,label:ALT* ramdisk_size=@rescue_size@ stagename=rescue splash=0 showopts @rescue_bootargs@ live_rw
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/83rescue_fm.cfg

@@ -0,0 +1,4 @@
+menuentry 'Forensic mode (leave disks alone)' --id 'rescue_forensic' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk fastboot live automatic=method:cdrom ramdisk_size=@rescue_size@ splash=0 showopts stagename=rescue @rescue_bootargs@ max_loop=16 forensic hash=@rescue_hash@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/85mediacheck.cfg

@@ -0,0 +1,4 @@
+menuentry 'Check this media for defects' --id 'mediachk' {
+  linux$linux_suffix /EFI/BOOT/vmlinuz changedisk live quiet lowmem automatic=method:cdrom mediacheck=1 stagename=mediacheck showopts @bootargs@
+  initrd$linux_suffix /EFI/BOOT/full.cz
+}

features.in/grub/cfg.in/90memtest.cfg

@@ -0,0 +1,3 @@
+menuentry 'Memory Test' --id 'memtest' {
+  linux$linux_suffix /EFI/BOOT/memtest86.efi
+}

features.in/grub/cfg.in/95fwsetup.cfg

@@ -0,0 +1,3 @@
+menuentry 'System setup' --id 'uefi-firmware' {
+        fwsetup
+}

features.in/grub/config.mk

@@ -0,0 +1,39 @@
+# default is plain text prompt
+# NB: might be usbflash-ready hybrid iso
+
+# on ppc64le syslinux feature is used only to generate config
+#ifeq (,$(filter-out i586 x86_64 ppc64le aarch64,$(ARCH)))
+ifeq (,$(filter-out i586 x86_64,$(ARCH)))
+
+use/grub: sub/stage1 $(ISOHYBRID:%=use/isohybrid)
+	@$(call add_feature)
+ifeq (,$(filter-out i586 x86_64,$(ARCH)))
+	@$(call add,STAGE1_PACKAGES,grub-efi shim-signed)
+	@$(call try,BOOTVGA,normal)
+endif
+	@$(call set,RELNAME,ALT ($(IMAGE_NAME)))
+	@$(call set,IMAGE_PACKTYPE,boot)
+else
+
+use/grub: ; @:
+
+endif
+
+ifeq (,$(filter-out i586 x86_64,$(ARCH)))
+# UI is overwritten
+use/grub/ui/%: use/grub
+	@$(call set,GRUB_UI,$*)
+	@if [ "$*" == gfxboot ]; then \
+		$(call add,STAGE1_PACKAGES,gfxboot); \
+		$(call add,STAGE1_BRANDING,bootloader); \
+	fi
+else
+use/grub/ui/%: use/grub; @:
+endif
+
+use/grub/%.cfg: use/grub
+	@$(call add,GRUB_CFG,$*)
+
+
+use/grub/timeout/%: use/grub
+	@$(call set,GRUB_TIMEOUT,$*)

features.in/grub/generate.mk

@@ -0,0 +1,100 @@
+ifdef BUILDDIR
+
+# in deciseconds
+DEFAULT_TIMEOUT = 90
+
+# prepare data for grub installation;
+# see also stage1/scripts.d/01-grub
+
+include $(BUILDDIR)/distcfg.mk
+
+ifndef BOOTLOADER
+$(error grub feature enabled but BOOTLOADER undefined)
+endif
+
+ifndef GRUB_DIRECT
+# SUBPROFILES are considered GRUB_CFG too
+# (note these can appear like stage2@live);
+# 01defaults.cfg is included indefinitely
+GRUB_CFG := $(GRUB_CFG) $(SUBPROFILE_DIRS) defaults
+endif
+
+DSTDIR  := $(BUILDDIR)/stage1/files/EFI/BOOT/.in
+DSTCFGS := $(DSTDIR)/*.cfg
+
+# we can do GRUB_{CFG,MODULES,FILES}
+# CFG have only cfg snippet
+cfg = $(wildcard cfg.in/??$(1).cfg)
+
+# NB: list position determined by file numbering (*.cfg sorting)
+#
+# config snippets are copied into generated profile where they can
+# be also tested against grub modules (some can be unavailable);
+# we can't do tests right now since that implies host grub being
+# identical to build system one which might be not the case...
+#
+# have to piggyback parameters as we're running in host system yet,
+# and files involved will appear inside instrumental chroot
+#
+# arguments get evaluated before recipe body execution thus prep
+
+all: debug timeout
+	@### proper text branding should be implemented
+	@echo $(GRUB_FILES) > $(DSTDIR)/grub.list
+	@sed -i \
+		-e 's,@mkimage-profiles@,$(IMAGE_NAME),' \
+		-e 's,@relname@,$(RELNAME),' \
+		$(DSTCFGS)
+
+# integerity check
+timeout: distro
+	@if [ "$(GRUB_TIMEOUT)" -ge 0 ] 2>/dev/null; then \
+		TIMEOUT="$(GRUB_TIMEOUT)"; \
+	else \
+		TIMEOUT="$(DEFAULT_TIMEOUT)"; \
+	fi; \
+	sed -i "s,@timeout@,$$TIMEOUT," $(DSTCFGS)
+
+distro: bootargs
+	@if [ -n "$(META_VOL_SET)" ]; then \
+		DISTRO="$(META_VOL_SET)"; \
+	else \
+		DISTRO="ALT"; \
+	fi; \
+	sed -i "s,@distro@,$$DISTRO," $(DSTCFGS)
+
+# pass over additional parameters, if any
+bootargs: clean
+	@if [ -n "$(STAGE2_BOOTARGS)" ]; then \
+		sed -i "s,@bootargs@,$(STAGE2_BOOTARGS)," $(DSTCFGS); \
+	fi; \
+	sed -i "s,@bootargs@,," $(DSTCFGS)
+	@if [ -n "$(RESCUE_BOOTARGS)" ]; then \
+		sed -i "s,@rescue_bootargs@,$(RESCUE_BOOTARGS)," $(DSTCFGS); \
+	fi; \
+	sed -i "s,@rescue_bootargs@,," $(DSTCFGS)
+	@if [ -n "$(BOOTVGA)" ]; then \
+		sed -i "s,@bootvga@,$(BOOTVGA)," $(DSTCFGS); \
+	fi; \
+	sed -i "s,@bootvga@,,;s,vga= ,," $(DSTCFGS)
+
+clean: copy
+	@if [ "$(GRUB_UI)" = gfxboot ]; then \
+		sed -i "s/\^//;/menu label /d" $(DSTCFGS); \
+	fi
+
+copy: prep
+	@cp -pLt $(DSTDIR) -- $(sort \
+		$(foreach C,$(GRUB_CFG),$(call cfg,$(C))))
+
+prep:
+	@mkdir -p $(DSTDIR)
+
+debug:
+	@if [ -n "$(DEBUG)" ]; then \
+		echo "** BOOTLOADER: $(BOOTLOADER)"; \
+		echo "** GRUB_CFG: $(GRUB_CFG)"; \
+		echo "** GRUB_FILES: $(GRUB_FILES)"; \
+	fi
+
+endif

features.in/grub/scripts.d/20-propagator-ramdisk

@@ -0,0 +1,20 @@
+#!/bin/sh
+# postprocess isolinux configuration
+# when the image sizes are finally known
+# NB: install2_size, live_size, rescue_size get defined here
+
+cd "$WORKDIR"
+
+cfgs="$(find EFI/BOOT -name '*.cfg')"
+[ -n "$cfgs" ] || {
+	echo "${0##*/}: did not find any config under EFI/BOOT " >&2
+	exit 1
+}
+
+# apply size census while looking for potential squashfs images
+find -maxdepth 1 -type f -size +1M \
+| sed 's,^\./,,' \
+| while read image; do
+	size="$[ $(stat -c%s "$image") / 1024 + 1 ]"
+	sed -i "s,@${image}_size@,$size," $cfgs
+done

features.in/grub/scripts.d/20-propagator-rescue-hash

@@ -0,0 +1,14 @@
+#!/bin/sh
+# postprocess isolinux configuration
+# to add rescue image hash, if any
+# (for propagator in forensic mode)
+
+cd "$WORKDIR"
+
+grep -qs "@rescue_hash@" EFI/BOOT/*.cfg || exit 0
+
+find -maxdepth 1 -type f -name rescue \
+| while read image; do
+	rescue_hash="$(sha256sum -b "$image" | cut -f1 -d' ')"
+	sed -i "s,@rescue_hash@,$rescue_hash," EFI/BOOT/*.cfg
+done

features.in/grub/stage1/scripts.d/01-grub

@@ -0,0 +1,41 @@
+#!/bin/sh
+# gather syslinux configuration from snippets;
+# copy modules; see also this feature's generate.mk
+
+CFG="grub.cfg"
+
+mkdir -p "$WORKDIR/EFI/BOOT"
+cd "$WORKDIR/EFI/BOOT"
+
+# validate just in case (see also stage1 Makefile)
+case "$GLOBAL_BOOTLOADER" in
+	isolinux|syslinux|ieee1275boot|grubaa64boot|grubx86boot) ;;
+	*) echo "error: weird GLOBAL_BOOTLOADER: \`$GLOBAL_BOOTLOADER'" >&2;
+	   exit 1;;
+esac
+
+# copy extra files, if any
+GRUB_FILES="$(cat .in/grub.list)"
+if [ -n "${GRUB_FILES% }" ]; then
+	cp -a $GRUB_FILES .
+fi
+
+# number ordering sponsored by shell's pathname expansion
+grep -hv '^#' .in/[0-9][0-9]*.cfg > "$CFG"
+
+# there should be DEFAULT directive there (at least for alterator-netinst)
+if ! grep -i '^default' "$CFG"; then
+	DEFAULT="$(grep -i '^label ' "$CFG" | head -1 | cut -f2 -d' ')"
+	if [ -n "$DEFAULT" ]; then
+		echo "default $DEFAULT" >> "$CFG"
+	else
+		echo "error: no DEFAULT or UI directive and cannot guess" >&2
+		exit 1
+	fi
+fi
+
+# snippets are not going into the actual image
+if [ "$DEBUG" != 2 ]; then rm -r .in/; fi
+
+# NB: there will be final macro expansion based on actual image sizes
+#     done by features.in/syslinux/scripts.d/20-propagator-ramdisk