docker-mailserver/target/bin/addrelayhost

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#! /bin/bash
# shellcheck source=../scripts/helpers/index.sh
source /usr/local/bin/helpers/index.sh
DATABASE='/tmp/docker-mailserver/postfix-relaymap.cf'
function __usage
{
printf "\e[35mADDRELAYHOST\e[31m(\e[93m8\e[31m)
\e[38;5;214mNAME\e[39m
addrelayhost - add an relay host
\e[38;5;214mSYNOPSIS\e[39m
./setup.sh relay add-domain <DOMAIN> <HOST> [<PORT>]
\e[38;5;214mOPTIONS\e[39m
\e[94mGeneric Program Information\e[39m
help Print the usage information.
\e[38;5;214mEXIT STATUS\e[39m
Exit status is 0 if command was successful. If wrong arguments are provided
or arguments contain errors, the script will exit early with exit status 1.
"
}
[[ ${1:-} == 'help' ]] && { __usage ; exit 0 ; }
DOMAIN="${1}"
HOST="${2}"
PORT="${3}"
[[ -z ${DOMAIN} ]] && { __usage ; _exit_with_error 'No domain specified' ; }
[[ -z ${HOST} ]] && { __usage ; _exit_with_error 'No relay host specified' ; }
[[ -z ${PORT} ]] && PORT=25
if grep -qi "^@${DOMAIN}" "${DATABASE}" 2>/dev/null
then
sed -i \
"s|^@${DOMAIN}.*|@${DOMAIN}\t\t[${HOST}]:${PORT}|" \
"${DATABASE}"
else
echo -e "@${DOMAIN}\t\t[${HOST}]:${PORT}" >>"${DATABASE}"
fi