#!/bin/bash -e
#
# Copyright (C) 2006-2008 Sun Microsystems, Inc.
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file 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,
# in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
# distribution. VirtualBox OSE is distributed in the hope that it will
# be useful, but WITHOUT ANY WARRANTY of any kind.
#

# we can be called with the following arguments:
#  install:          (our version): install our version
#  upgrade:          (our version): upgrade to our version
#  abort-upgrade:    (old version): upgrade to a new version failed

if [ "$1" = "install" -o "$1" = "upgrade" ]; then

  . /usr/share/debconf/confmodule
  db_version 2.0
  db_capb backup

  # check for active VMs
  if pidof VBoxSVC > /dev/null 2>&1; then
    db_fset virtualbox/old-running seen false || true
    db_input high virtualbox/old-running || true
    db_go || true
    exit 1
  fi

  # check for old installation
  if [ -r /etc/vbox/vbox.cfg ]; then
    . /etc/vbox/vbox.cfg
    if [ "x$INSTALL_DIR" != "x" -a -d "$INSTALL_DIR" ]; then
      db_fset virtualbox/old-installation-found seen false || true
      db_input high virtualbox/old-installation-found || true
      db_go || true
      exit 1
    fi
    # we will remove that file in postinst
  fi

  # check for old vboxdrv modules
  if find /lib/modules -name "vboxdrv\.*" 2>/dev/null|grep -q vboxdrv; then
    # old modules found
    db_get virtualbox/delete-old-modules || true
    if [ "$RET" = "false" ]; then
      cat << EOF
Old vboxdrv kernel modules found in
EOF
      find /lib/modules -name "vboxdrv\.*" 2>/dev/null|sed "s+\(.*\)+  \1+g"
      cat << EOF
Removing of these modules denied by debconf setting
EOF
    else
      db_input critical virtualbox/delete-old-modules || true
      db_go || true
      db_get virtualbox/delete-old-modules || true
      if [ "$RET" = "true" ]; then
        find /lib/modules -name "vboxdrv\.*" 2>/dev/null|xargs rm -f 2>/dev/null
        find /lib/modules -name "vboxnetflt\.*" 2>/dev/null|xargs rm -f 2>/dev/null
        find /lib/modules -name "vboxnetadp\.*" 2>/dev/null|xargs rm -f 2>/dev/null
      fi
    fi
  fi

fi # "$1" = "install" -o "$1" = "upgrade"

#DEBHELPER#