docker-mailserver/target/bin/delquota

#! /bin/bash

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

DATABASE=${DATABASE:-/tmp/docker-mailserver/dovecot-quotas.cf}
USER_DATABASE=${USER_DATABASE:-/tmp/docker-mailserver/postfix-accounts.cf}

function __usage { echo "Usage: delquota <username@domain>" ; }

[[ ${1:-} == 'help' ]] && { __usage ; exit 0 ; }

USER="${1}"

[[ -z ${USER} ]]  && { __usage ; errex "No username specified" ; }
[[ "${USER}" =~ .*\@.* ]] || { __usage ; errex "Username must include the domain"; }

if ! grep -qE "^${USER}\|" "${USER_DATABASE}"
then
  __usage
  errex "user ${USER} does not exist"
fi

[[ -s ${DATABASE} ]] || exit 0

sed -i -e "/^${USER}:.*$/d" "${DATABASE}"