#! /bin/sh -e

# grub-mkconfig helper script.
# Copyright (C) 2006,2007,2008,2009  Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB.  If not, see <http://www.gnu.org/licenses/>.

prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
libdir=@libdir@
. ${libdir}/grub/grub-mkconfig_lib

. ${bindir}/gettext.sh
export TEXTDOMAIN=@PACKAGE@
export TEXTDOMAINDIR=@LOCALEDIR@

case "${GRUB_DISTRIBUTOR}" in
  Debian)	OS="${GRUB_DISTRIBUTOR} GNU/kFreeBSD" ;;
  *)		OS="FreeBSD" ;;
esac

kfreebsd_entry ()
{
  os="$1"
  version="$2"
  recovery="$3"	# not used yet
  args="$4"	# not used yet
  title="$(gettext "%s, with kFreeBSD %s")"
  printf "menuentry \"${title}\" {" ${os} ${version}
  if [ -z "${prepare_boot_cache}" ]; then
    prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/")"
  fi
  printf '%s\n' "${prepare_boot_cache}"
  cat << EOF
	kfreebsd			${rel_dirname}/${basename}
EOF

  if test -n "${devices}" ; then
    cat << EOF
	kfreebsd_loadenv		${devices_rel_dirname}/${devices_basename}
EOF
  fi

  if test -n "${acpi_ko}" ; then
    cat << EOF
	kfreebsd_module_elf	${acpi_ko_rel_dirname}/${acpi_ko_basename}
EOF
  fi

  cat << EOF
	set kFreeBSD.vfs.root.mountfrom=${kfreebsd_fs}:${GRUB_DEVICE}
	set kFreeBSD.vfs.root.mountfrom.options=rw
}
EOF
}

list=`for i in /boot/kfreebsd-* /boot/kernel/kernel ; do
        if grub_file_is_not_garbage "$i" ; then echo -n "$i " ; fi
      done`
prepare_boot_cache=

while [ "x$list" != "x" ] ; do
  kfreebsd=`version_find_latest $list`
  echo "Found kernel of FreeBSD: $kfreebsd" >&2
  basename=`basename $kfreebsd`
  dirname=`dirname $kfreebsd`
  rel_dirname=`make_system_path_relative_to_its_root $dirname`

  if [ -f /boot/device.hints ] ; then
    devices=/boot/device.hints
    devices_basename=`basename $devices`
    devices_dirname=`dirname $devices`
    devices_rel_dirname=`make_system_path_relative_to_its_root $devices_dirname`
  fi

  case ${GRUB_FS} in
    ufs1 | ufs2)        kfreebsd_fs=ufs ;;
    *)                  kfreebsd_fs=${GRUB_FS} ;;
  esac

  version=`echo $basename | sed -e "s,^[^0-9]*-,,g;s/\.gz$//g"`
  alt_version=`echo $version | sed -e "s,\.old$,,g"`

  acpi_ko=
  for i in "/lib/modules/${version}/acpi.ko" "/lib/modules/${alt_version}/acpi.ko" \
      "/boot/kernel/acpi.ko"; do
    if test -e "$i" ; then
      acpi_ko="$i"
      break
    fi
  done
  if test -n "${acpi_ko}" ; then
    echo "Found ACPI module: ${acpi_ko}" >&2
    acpi_ko_basename=`basename ${acpi_ko}`
    acpi_ko_dirname=`dirname ${acpi_ko}`
    acpi_ko_rel_dirname=`make_system_path_relative_to_its_root $acpi_ko_dirname`
  fi

  kfreebsd_entry "${OS}" "${version}"

  list=`echo $list | tr ' ' '\n' | grep -vx $kfreebsd | tr '\n' ' '`
done