#!/bin/bash
#
# Copyright (C) 2007-2012 Hypertable, Inc.
#
# This file is part of Hypertable.
#
# Hypertable 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 any later version.
#
# Hypertable 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 Hypertable. If not, see <http://www.gnu.org/licenses/>
#

if [ $# -ne 2 ] || [ "$1" != "upgrade" ]; then
  if [ -h $OLD_HOME/conf ]; then
    rm -f $OLD_HOME/conf
  fi
  if [ -h $OLD_HOME/hyperspace ]; then
    rm -f $OLD_HOME/hyperspace
  fi
  if [ -h $OLD_HOME/fs ]; then
    rm -f $OLD_HOME/fs
  fi
  if [ -h $OLD_HOME/run ]; then
    rm -f $OLD_HOME/run
  fi
  if [ -h $OLD_HOME/log ]; then
    rm -f $OLD_HOME/log
  fi
  exit 0
fi

OLD_HOME="/opt/hypertable/@VERSION@"
NEWVERSION=$2
POST_SCRIPT=/tmp/hypertable-install/post.sh

rm -rf /tmp/hypertable-install
mkdir /tmp/hypertable-install

echo "#\!/bin/bash" | sed 's/\\//g' > $POST_SCRIPT
echo "pushd . > /dev/null" >> $POST_SCRIPT
echo "cd /opt/hypertable/$NEWVERSION/" >> $POST_SCRIPT

# conf
if [ -h $OLD_HOME/conf ]; then
  echo "rm -rf conf" >> $POST_SCRIPT
  echo "ln -s `readlink $OLD_HOME/conf` conf" >> $POST_SCRIPT
  rm -f $OLD_HOME/conf
elif [ -d $OLD_HOME/conf ]; then
  if ls $OLD_HOME/conf/*.cfg > /dev/null 2>&1; then
    cp $OLD_HOME/conf/*.cfg /tmp/hypertable-install/
    rm -f $OLD_HOME/conf/*.cfg
  fi
  if ls $OLD_HOME/conf/*.def > /dev/null 2>&1; then
    cp $OLD_HOME/conf/*.def /tmp/hypertable-install/
    rm -f $OLD_HOME/conf/*.def
  fi
  if [ -e $OLD_HOME/conf/notification-hook.sh ]; then
    cp $OLD_HOME/conf/notification-hook.sh /tmp/hypertable-install/
    rm -f $OLD_HOME/conf/notification-hook.sh
  fi
fi

# hyperspace
if [ -h $OLD_HOME/hyperspace ]; then
  echo "ln -s `readlink $OLD_HOME/hyperspace` hyperspace" >> $POST_SCRIPT
  rm -f $OLD_HOME/hyperspace
fi

# fs
if [ -h $OLD_HOME/fs ]; then
  echo "ln -s `readlink $OLD_HOME/fs` fs" >> $POST_SCRIPT
  rm -f $OLD_HOME/fs
fi

# run
if [ -h $OLD_HOME/run ]; then
  echo "ln -s `readlink $OLD_HOME/run` run" >> $POST_SCRIPT
  rm -f $OLD_HOME/run
fi

# log
if [ -h $OLD_HOME/log ]; then
  echo "ln -s `readlink $OLD_HOME/log` log" >> $POST_SCRIPT
  rm -f $OLD_HOME/log
fi

echo "popd > /dev/null" >> $POST_SCRIPT
chmod 755 $POST_SCRIPT