#!/bin/bash
set -e

# shellcheck source=/dev/null
. /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}

export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin

# inspired by iputils-ping
#
# cap_ipc_lock is required if a user wants to use --memlock
# and has insufficient RLIMIT_MEMLOCK (MDEV-33301)

PROGRAM=$(dpkg-divert --truename /usr/sbin/mysqld)

case "$1" in
  configure)
    # If we have setcap installed, try setting
    # which allows us to install our binaries without the setuid
    # bit.
    if command -v setcap > /dev/null
    then
      if ! setcap cap_ipc_lock+ep "$PROGRAM"
      then
        echo "Setcap failed on $PROGRAM, required with --memlock if insufficent RLIMIT_MEMLOCK" >&2
      fi
    fi
    ;;

  abort-upgrade|abort-remove|abort-configure|triggered)
    ;;

  *)
    echo "postinst called with unknown argument '$1'" 1>&2
    exit 1
    ;;
esac

db_stop # in case invoke fails