docker-mailserver/target/bin/listmailuser

#! /bin/bash

# shellcheck source=../scripts/helper-functions.sh
. /usr/local/bin/helper-functions.sh

function dovecot_quota_to_hr()
{
  if [ "${1}" == "-" ]
  then
    echo "~"
  else
    echo $(( 1024 * ${1} )) | numfmt --to=iec
  fi
}

DATABASE="/tmp/docker-mailserver/postfix-accounts.cf"
ALIASES="/tmp/docker-mailserver/postfix-virtual.cf"

[[ -f ${DATABASE} ]] || errex "Error: No postfix-accounts.cf file"
[[ -s ${DATABASE} ]] || errex "Error: Empty postfix-accounts.cf - no accounts have been added"

while read -r LINE
do
  USER=$(echo "${LINE}" | cut -d'|' -f1)

  # ${QUOTA[0]} => current size
  # ${QUOTA[1]} => configured size limit
  # ${QUOTA[2]} => usage in percent
  IFS=' ' read -r -a QUOTA <<< "$(doveadm quota get -u "${USER}" | tail +2 | awk '{ if ($3 == "STORAGE") { print $4" "$5" "$6 } }')"

  echo "* ${USER} ( $(dovecot_quota_to_hr "${QUOTA[0]}") / $(dovecot_quota_to_hr "${QUOTA[1]}") ) [${QUOTA[2]}%]"

  if [[ -f ${ALIASES} ]] && grep -q "${USER}" "${ALIASES}"
  then
    echo -e "    [ aliases -> $(grep "${USER}" "${ALIASES}" | awk '{print $1;}' | sed ':a;N;$!ba;s/\n/, /g')]\n"
  else
    echo
  fi
done < "${DATABASE}"

exit 0