#!/bin/bash -e

. /usr/share/debconf/confmodule

if [ -n "$DEBIAN_SCRIPT_DEBUG" ]; then set -v -x; DEBIAN_SCRIPT_TRACE=1; fi
${DEBIAN_SCRIPT_TRACE:+ echo "#42#DEBUG# RUNNING $0 $*" 1>&2 }

MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"

# Try to stop the server in a sane way. If it does not success let the admin
# do it himself. No database directories should be removed while the server
# is running!
stop_server() {
  set +e
  if [ -x /usr/sbin/invoke-rc.d ]; then
    invoke-rc.d mysql stop
  else
    /etc/init.d/mysql stop
  fi
  errno=$?
  set -e

  if [ "$?" != 0 ]; then
    echo "Trying to stop the MySQL server resulted in exitcode $?." 1>&2
    echo "Stop it yourself and try again!" 1>&2
    exit 1
  fi
}

case "$1" in
  purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
    if [ -n "`$MYADMIN ping 2>/dev/null`" ]; then
      stop_server
      sleep 2
    fi
  ;;
  *)
    echo "postrm called with unknown argument '$1'" 1>&2
    exit 1
  ;;
esac

#
# - Do NOT purge logs or data if another mysql-sever* package is installed (#307473)
# - Remove the mysql user only after all his owned files are purged.
#
if [ "$1" = "purge" -a ! \( -x /usr/sbin/mysqld -o -L /usr/sbin/mysqld \) ]; then
  # we remove the mysql user only after all his owned files are purged
  rm -f /var/log/mysql.{log,err}{,.0,.[1234567].gz}
  rm -rf /var/log/mysql

  db_input high mariadb-server-10.3/postrm_remove_databases || true
  db_go || true
  db_get mariadb-server-10.3/postrm_remove_databases || true
  if [ "$RET" = "true" ]; then
    # never remove the debian.cnf when the databases are still existing
    # else we ran into big trouble on the next install!
    rm -f /etc/mysql/debian.cnf
    # Remove all contents from /var/lib/mysql except if it's a
    # directory with file system data. See #829491 for details and
    # #608938 for potential mysql-server leftovers which erroneously
    # had been renamed.
    find /var/lib/mysql -mindepth 1 \
         -not -path '*/lost+found/*'     -not -name 'lost+found' \
         -not -path '*/lost@002bfound/*' -not -name 'lost@002bfound' \
         -delete
    # "|| true" still needed as rmdir still exits with non-zero if
    # /var/lib/mysql is a mount point
    rmdir --ignore-fail-on-non-empty /var/lib/mysql || true
    rm -rf /var/run/mysqld # this directory is created by the init script, don't leave behind
    userdel mysql || true
  fi

fi

#DEBHELPER#

exit 0