#!/bin/sh
set -e

if [ "$1" = "install" ] || [ "$1" = "upgrade" ]
then
  if dpkg --compare-versions "$2" lt-nl "10.0.20-3~"
  then
    # revert fallback my.cnf symlink setup performed by mariadb-common
    # from 10.0.17-1~exp2 up to 10.0.20-2
    if [ -L /etc/mysql/my.cnf ] && [ -f /etc/mysql/my.cnf.old ]
    then
      if [ "$(readlink /etc/mysql/my.cnf)" = "mariadb.cnf" ]
      then
        echo "Reverting my.cnf -> mariadb.cnf symlink setup by mariadb-common"
        rm /etc/mysql/my.cnf
        mv /etc/mysql/my.cnf.old /etc/mysql/my.cnf
      fi
    fi
  fi
fi