#$Id$
#Copyright (c) 2008-2014 Pierre Pronchery <khorben@defora.org>



#variables
[ -z "$BOOTOPTIONS"	] && BOOTOPTIONS="console=pc"
[ -z "$FDISK"		] && FDISK="fdisk"
[ -z "$GZIP"		] && GZIP="gzip"
[ -z "$IMAGE_BOOT"	] && IMAGE_BOOT="/usr/mdec/boot"
[ -z "$IMAGE_KERNEL"	] && IMAGE_KERNEL="/netbsd.gz"
[ -z "$IMAGE_SIZE"	] && IMAGE_SIZE="65536"
[ -z "$INSTALLBOOT"	] && INSTALLBOOT="installboot"
[ -z "$LDSO"		] && LDSO="/libexec/ld.elf_so"
[ -z "$MBRLABEL"	] && MBRLABEL="mbrlabel"
[ -z "$MDSETIMAGE"	] && MDSETIMAGE="mdsetimage"
[ -z "$MKFS"		] && MKFS="newfs"
[ -z "$MKISOFS"		] && MKISOFS="makefs -t cd9660"
[ -z "$MOUNT"		] && MOUNT="mount"
[ -z "$UMOUNT"		] && UMOUNT="umount"
[ -z "$VNCONFIG"	] && VNCONFIG="vnconfig"
[ -z "$VND"		] && VND="vnd0"


#functions
#private
#image_image
_image_image_pre()
{
	USAGE="Options for $IMAGE_TYPE on $TARGET:
  IMAGE_BOOT	Path to the bootloader
  IMAGE_FILE	Where to write the filesystem image
  IMAGE_KERNEL	Path to the kernel (optional)
  IMAGE_SIZE	Size of the filesystem image in kilobytes
  IMAGE_TYPE	The type of image to generate
  LDSO		Path to the dynamic loader
  MKFS		Command used to format the filesystem"

	#sanity check
	check "$USAGE" CHOWN DD DESTDIR DEVZERO FDISK IMAGE_BOOT IMAGE_FILE \
		IMAGE_SIZE INSTALL INSTALLBOOT LDSO LN MBRLABEL MKDIR MKFS \
		MKNOD MOUNT MV UMOUNT VNCONFIG VND

	$MKDIR -- "$DESTDIR"					|| return 2
	$DEBUG $SUDO $UMOUNT "$DESTDIR"
	$DEBUG $SUDO $VNCONFIG -u "$VND"
	$DEBUG $DD if="$DEVZERO" of="$IMAGE_FILE" count="$IMAGE_SIZE" &&
	$DEBUG $FDISK -Ffi "$IMAGE_FILE"			|| return 2
	SIZE=$((IMAGE_SIZE * 2 - 63))
	$DEBUG $FDISK -Ffu0s "169/63/$SIZE" "$IMAGE_FILE"	|| return 2
	$DEBUG $FDISK -Ffa0 "$IMAGE_FILE"			|| return 2
	$DEBUG $SUDO $VNCONFIG -c "$VND" "$IMAGE_FILE"		|| return 2
	$DEBUG $SUDO $MBRLABEL -frw "$VND"			&&
	$DEBUG $SUDO $MKFS "${VND}e"				&&
	$DEBUG $SUDO $MOUNT "/dev/${VND}e" "$DESTDIR"		&&
	$DEBUG $SUDO $CHOWN "$UID:$GID" "$DESTDIR"		&&
	$DEBUG $MKDIR -- "$DESTDIR$PREFIX"
}

_image_image_boot()
{
	#/boot
	$DEBUG $SUDO $INSTALL -m 0444 "$IMAGE_BOOT" "$DESTDIR/boot" \
								|| return 2
	#/boot.cfg
	BOOT_SPLASH="vesa 640x480x8;boot netbsd"
	if [ -n "$IMAGE_SPLASH" ]; then
		$DEBUG $SUDO $INSTALL -m 0644 "$IMAGE_SPLASH" \
			"$DESTDIR/netbsd.jpeg"			|| return 2
		BOOT_SPLASH="vesa 640x480x8;splash /netbsd.jpeg;boot netbsd -z"
	fi
	$SUDO sh -c "cat > $DESTDIR/boot.cfg" << EOF
clear=1
banner=Welcome to DeforaOS
banner====================
banner=
banner=Please choose an option from the following menu:
menu=Boot DeforaOS:$BOOT_SPLASH
menu=Boot DeforaOS (text mode):boot netbsd
menu=Reboot:quit
menu=Drop to boot prompt:prompt
default=1
timeout=10
EOF
	[ $? -eq 0 ]						|| return 2
	if [ -n "$IMAGE_KERNEL" ]; then
		#/netbsd
		$DEBUG $SUDO $INSTALL -m 0755 "$IMAGE_KERNEL" \
			"$DESTDIR/netbsd"			|| return 2
		$DEBUG $SUDO $INSTALLBOOT -m "$MACHINE" -o "timeout=10" \
			"/dev/r${VND}e" "/usr/mdec/bootxx_ffsv1"|| return 2
	fi
}

_image_image_configure()
{
	#fix the permissions
	$DEBUG $SUDO $CHOWN -R "0:0" "$DESTDIR"			|| return 2
	#/bin/sh
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/bin"			|| return 2
	$DEBUG $SUDO $MV "$DESTDIR$PREFIX/bin/sh" "$DESTDIR/bin/sh" \
								|| return 2
	#create essential device nodes
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/dev"
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/console" c 0 0|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0a" b 0 0	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0b" b 0 1	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0c" b 0 2	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0d" b 0 3	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0e" b 0 4	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0f" b 0 5	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0g" b 0 6	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/hd0h" b 0 7	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0a" c 3 0	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0b" c 3 1	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0c" c 3 2	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0d" c 3 3	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0e" c 3 4	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0f" c 3 5	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0g" c 3 6	|| return 2
	$DEBUG $SUDO $MKNOD -m 0600 "$DESTDIR/dev/rhd0h" c 3 7	|| return 2
	#/etc
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/etc"			|| return 2
	#/etc/fstab
	$SUDO sh -c "cat > $DESTDIR/etc/fstab" << EOF
/dev/hd0e / ffs rw 1 1
procfs /proc procfs rw
EOF
	[ $? -eq 0 ]						|| return 2
	$DEBUG $SUDO $CHMOD -- "0644" "$DESTDIR/etc/fstab"	|| return 2
	#/etc/group
	$SUDO sh -c "cat > $DESTDIR/etc/group" << EOF
wheel:*:0:root
EOF
	[ $? -eq 0 ]						|| return 2
	$DEBUG $SUDO $CHMOD -- "0644" "$DESTDIR/etc/group"	|| return 2
	#/etc/passwd
	$SUDO sh -c "cat > $DESTDIR/etc/passwd" << EOF
root::0:0:Superuser:/root:/bin/sh
EOF
	[ $? -eq 0 ]						|| return 2
	$DEBUG $SUDO $CHMOD -- "0644" "$DESTDIR/etc/passwd"	|| return 2
	#/etc/rc
	$SUDO sh -c "cat > $DESTDIR/etc/rc" << EOF
#!/bin/sh

echo "Welcome to DeforaOS!"
echo
while /usr/bin/true; do $PREFIX/bin/login; done
EOF
	[ $? -eq 0 ]						|| return 2
	$DEBUG $SUDO $CHMOD -- "0755" "$DESTDIR/etc/rc"		|| return 2
	#/libexec/ld.elf_so
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/libexec"		|| return 2
	$DEBUG $SUDO $INSTALL -m 0555 "$LDSO" "$DESTDIR/libexec/ld.elf_so" \
								|| return 2
	#/usr/libexec/ld.elf_so
	$DEBUG $SUDO $MKDIR -- "$DESTDIR$PREFIX/libexec"	|| return 2
	$DEBUG $SUDO $LN -s "/libexec/ld.elf_so" \
			"$DESTDIR$PREFIX/libexec"		|| return 2
	#/proc
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/proc"			|| return 2
	#/sbin/init
	$DEBUG $SUDO $MKDIR -- "$DESTDIR/sbin"			|| return 2
	SUBDIRS="Apps/Unix/src/others/others-git/tools" _target \
			oinit					|| return 2
	$DEBUG $SUDO $INSTALL -m 0755 \
		"Apps/Unix/src/others/others-git/tools/oinit" \
		"$DESTDIR/sbin/init"				|| return 2
}

_image_image_post()
{
	_image_image_configure
	ret=$?
	if [ $ret -eq 0 ]; then
		_image_image_boot
		ret=$?
	fi
	$DEBUG $SUDO $UMOUNT "$DESTDIR"
	$DEBUG $SUDO $VNCONFIG -u "$VND"
	return $ret
}


#image_iso
_image_iso_pre()
{
	USAGE="Options for $IMAGE_TYPE on $TARGET:
  IMAGE_BOOT	Path to the bootloader
  IMAGE_FILE	Where to write the filesystem image
  IMAGE_KERNEL	Path to the kernel
  IMAGE_RAMDISK	Path to a ramdisk image (optional)
  IMAGE_TYPE	The type of image to generate
  LDSO		Path to the dynamic loader
  MKISOFS	Command used to format the filesystem"
	MKISOFS_ARGS="-o bootimage=i386;bootxx,no-emul-boot,rockridge"

	#sanity check
	check "$USAGE" IMAGE_BOOT IMAGE_FILE IMAGE_KERNEL LDSO MDSETIMAGE \
		MKISOFS
}

_image_iso_post()
{
	_image_image_configure					|| return 2
	#FIXME assumes the kernel is uncompressed
	$DEBUG $SUDO $INSTALL -m 0755 "$IMAGE_KERNEL" "$DESTDIR/netbsd" \
								|| return 2
	if [ -n "$IMAGE_RAMDISK" ]; then
		$DEBUG $SUDO $MDSETIMAGE "$DESTDIR/netbsd" "$IMAGE_RAMDISK" \
								|| return 2
	fi
	$DEBUG $SUDO $GZIP -9 "$DESTDIR/netbsd"			|| return 2
	$DEBUG $SUDO $INSTALL -m 0644 "$IMAGE_BOOT" "$DESTDIR/boot" \
								|| return 2
	BOOT_SPLASH="vesa 640x480x8;boot netbsd.gz"
	if [ -n "$IMAGE_SPLASH" ]; then
		$DEBUG $SUDO $INSTALL -m 0644 "$IMAGE_SPLASH" \
			"$DESTDIR/netbsd.jpeg"			|| return 2
		BOOT_SPLASH="vesa 640x480x8;splash /netbsd.jpeg;boot netbsd.gz -z"
	fi
	$SUDO sh -c "cat > $DESTDIR/boot.cfg" << EOF
clear=1
banner=Welcome to DeforaOS
banner====================
banner=
banner=Please choose an option from the following menu:
menu=Boot DeforaOS:$BOOT_SPLASH
menu=Boot DeforaOS (text mode):boot netbsd.gz
menu=Reboot:quit
menu=Drop to boot prompt:prompt
default=1
timeout=10
EOF
	$DEBUG $INSTALL -m 0644 "/usr/mdec/bootxx_cd9660" "bootxx" \
								|| return 2
	$DEBUG $INSTALLBOOT -m "$MACHINE" -o "$BOOTOPTIONS" -e bootxx \
								|| return 2
	$DEBUG $MKISOFS $MKISOFS_ARGS "$IMAGE_FILE" "$DESTDIR"	|| return 2
}