#!/bin/bash
#
# /etc/init.d/funifs
#
# Copyright (C) Vladimir V. Kolpakov 2006-2011
# All rights reserved.
#
### BEGIN INIT INFO
# Provides:         funifs
# Required-Start:   $local_fs $remote_fs $network
# Should-Start:     $syslog
# Required-Stop:    $local_fs $remote_fs $network
# Should-Stop:      $syslog
# Default-Start:    3 5
# Default-Stop:     0 1 2 6
# Short-Description:    Funifs filesystems
# Description:      Mount Funifs filesystem unions
### END INIT INFO

. /etc/rc.status

collect_funifs () {
  auto=$1
  funifs=()
  while read  what where type options rest ; do
    [[ $what != \#* && $type = fuse.funifs ]] || continue
    [[ -n $auto && $options = *noauto* ]] && continue
    funifs+=( $where )
  done < /etc/fstab
  mounted=()
  unmounted=()
  for n in ${funifs[@]} ; do
    if fgrep -q " $n " /proc/mounts ; then
      mounted+=( $n )
    else
      unmounted+=( $n )
    fi
  done
  test -n "$funifs"
}

rc_reset
case "$1" in
  start|reload)
    echo -n "Mounting Funifs userland file systems"
    collect_funifs auto || rc_failed 3
    for n in ${unmounted[@]} ; do
      node=
      while read  what where type options rest ; do
	[[ $what != \#* && $type = fuse.funifs && $where = $n ]] || continue
	[[ -n $node ]] && { echo -n ' ***' Duplicate of $n in /etc/fstab ; rc_failed ; break 2 ; }
	/sbin/mount.fuse $what $n -o $options -t /usr/sbin/funifs || { rc_failed ; break 2 ; }
	node=$n
      done < /etc/fstab
    done
    rc_status -v
    ;;
  stop)
    echo -n "Unmounting Funifs userland file systems"
    collect_funifs || rc_failed 3
    for n in ${mounted[@]} ; do
      umount $n || rc_failed
    done
    rc_status -v
    ;;
  restart|force-reload)
    ## Stop the service and regardless of whether it was
    ## running or not, start it again.
    $0 stop
    $0 start
    rc_status
    ;;
  status)
    collect_funifs || rc_failed 3
    if test -n "$mounted" ; then
      echo -n "Mounted Funifs nodes: "${mounted[@]}
      rc_status -v
    fi
    collect_funifs auto
    if test -n "$unmounted" ; then
      echo -n "Unmounted Funifs nodes: "${unmounted[@]}
      rc_failed
      rc_status -v
    fi
    ;;
  try-restart|condrestart)
    $0 status
    if test $? = 0; then
      $0 restart
    else
      rc_reset
    fi
    rc_status
    ;;
  *)
    echo "Usage: $0 {start|stop|status|reload|force-reload|restart|try-restart|condrestart}"
    exit 1
esac
rc_exit