docker-mailserver/target/bin/listmailuser
Georg Lauterbach da8171388f
Complete Refactor for target/bin (#1654)
* documentation and script updates trying to fix #1647
* preparations for refactoring target/bin/
* complete refactor for target/bin/
* changing script output slightly
* outsourcing functions in `bin-helper.sh`
* re-wrote linting to allow for proper shellcheck -x execution
* show explanation for shellcheck ignore
* adding some more information
2020-10-21 18:16:32 +02:00

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#! /bin/bash
# ? This is done to ignore the message "Make sure not to read and write
# ? the same file in the same pipeline", which is a result of ${DATABASE}
# ? being used below. (This disables the message file-wide.)
# shellcheck disable=SC2094
# shellcheck source=../bin-helper.sh
. /usr/local/bin/bin-helper.sh
DATABASE=${DATABASE:-/tmp/docker-mailserver/postfix-accounts.cf}
[[ -f ${DATABASE} ]] || errex "Error: No postfix-virtual.cf file"
[[ -s ${DATABASE} ]] || errex "Error: Empty postfix-virtual.cf - no aliases have been added"
# Lock database even though we are only reading
(
flock -e 200
( grep -v "^\s*$\|^\s*\#" "${DATABASE}" || true ) | awk -F '|' '{ print $1; }'
) 200< "${DATABASE}"