#!/bin/sh
set -e

case `dpkg --print-architecture` in
  kfreebsd-*)
    # No migration from GRUB Legacy, no Linux cmdline
    exit 0
  ;;
esac

. /usr/share/debconf/confmodule

priority=medium

case grub-pc in
  grub-pc)
    if test -e /boot/grub/stage2 && test -e /boot/grub/menu.lst && ! test -e /boot/grub/core.img ; then

      db_input high grub-pc/chainload_from_menu.lst || true

      db_get grub-pc/kopt_extracted || true
      # this check ensures we only do this once
      if [ "$RET" = "false" ] ; then
        kopt=`sed -ne "s/^# kopt=//p" /boot/grub/menu.lst | tr -s " " "\n" | grep -vx "\(ro\|root=[^ ]*\)" | paste -s -d ' '` || true
        db_set grub2/linux_cmdline "${kopt}" || true
        db_set grub-pc/kopt_extracted true || true
        if [ "${kopt}" = "" ] ; then
          # something smells bad.  give user a chance to correct it.
          priority=high
        else
          # if we got something from menu.lst, it must be correct?
          priority=medium
        fi
        timeout=`sed -ne "s/^timeout[[:space:]][[:space:]]*//p" /boot/grub/menu.lst` || true
        if [ "${timeout}" != "" ]; then
          db_set grub-pc/timeout "${timeout}" || true
        fi
        if grep -q '^hiddenmenu\([[:space:]]\|$\)' /boot/grub/menu.lst; then
          db_set grub-pc/hidden_timeout true || true
        else
          db_set grub-pc/hidden_timeout false || true
        fi
      fi
    fi
  ;;
esac

# This deliberately doesn't include /etc/default/grub.d/*.cfg, since we're
# only sourcing this configuration file in order to prompt for values to
# write back to /etc/default/grub.
if [ -e /etc/default/grub ]; then
  . /etc/default/grub
fi

if [ "${GRUB_CMDLINE_LINUX+set}" = set ]; then
  db_set grub2/linux_cmdline "$GRUB_CMDLINE_LINUX"
fi
if [ "${GRUB_CMDLINE_LINUX_DEFAULT+set}" = set ]; then
  db_set grub2/linux_cmdline_default "$GRUB_CMDLINE_LINUX_DEFAULT"
fi
# Watch for the inverted logic here...
if [ "${GRUB_DISABLE_OS_PROBER+set}" = set ]; then
  db_set grub2/enable_os_prober "false"
fi

case grub-pc in
  grub-pc)
    if [ "${GRUB_TIMEOUT}" != "" ]; then
      db_set grub-pc/timeout "$GRUB_TIMEOUT"
    fi
    if [ "${GRUB_HIDDEN_TIMEOUT}" != "" ]; then
      db_set grub-pc/hidden_timeout true
    elif egrep -qs '^#?[[:space:]]*GRUB_HIDDEN_TIMEOUT=' /etc/default/grub; then
      db_set grub-pc/hidden_timeout false
    fi
  ;;
esac

db_input ${priority} grub2/linux_cmdline || true
db_input medium grub2/linux_cmdline_default || true
db_input low grub2/enable_os_prober || true
case grub-pc in
  grub-*efi*)
    db_input low grub2/force_efi_extra_removable || true
  ;;
esac
case grub-pc in
  grub-*efi*|grub-ieee1275)
    db_input low grub2/update_nvram || true
  ;;
esac
db_go
