#!/bin/sh
#
# 2011 Steven Armstrong (steven-cdist at armstrong.cc)
#
# This file is part of cdist.
#
# cdist 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.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#

exports_d="$(cat "$__object/explorer/exports.d")"
state_should="$(cat "$__object/parameter/state")"
state_is=$(diff -q "$__object/parameter/entry" "$__object/explorer/entry" \
   && echo present \
   || echo absent
)

if [ "$state_is" != "$state_should" ]; then
   if [ "$exports_d" != "present" ]; then
      case "$state_should" in
         present)
            cat << DONE
cat >> /etc/exports << EOC
$(cat "$__object/parameter/entry")
EOC
DONE
         ;;
         absent)
            # defined in type manifest
            prefix="$(cat "$__object/parameter/prefix")"
            suffix="$(cat "$__object/parameter/suffix")"
            cat << DONE
cat /etc/exports
awk -v prefix="$prefix" -v suffix="$suffix" '
{
   if (index(\$0,prefix)) {
      triggered=1
   }
   if (triggered) {
      if (index(\$0,suffix)) {
            triggered=0
      }
   } else {
      print
   }
}' /etc/exports > /etc/exports+
mv -f /etc/exports+ /etc/exports
DONE
         ;;
      esac
   fi
   # re-export if we changed something
   echo "exportfs -rf"
fi