fix: correct ENV export

Thanks to @polarathene for his feedback in
https://github.com/docker-mailserver/docker-mailserver/pull/4323#pullrequestreview-2561071322

Signed-off-by: georglauterbach <44545919+georglauterbach@users.noreply.github.com>

target/scripts/start-mailserver.sh

@@ -38,7 +38,6 @@ function _register_functions() {
   # ? >> Checks
 
   _register_check_function '_check_hostname'
-  _register_check_function '_check_log_level'
   _register_check_function '_check_spam_prefix'
 
   # ? >> Setup
@@ -63,7 +62,6 @@ function _register_functions() {
       ;;
 
     ( 'LDAP' )
-      _environment_variables_ldap
       _register_setup_function '_setup_ldap'
       ;;
 
@@ -76,15 +74,8 @@ function _register_functions() {
       ;;
   esac
 
-  if [[ ${ENABLE_OAUTH2} -eq 1 ]]; then
+  [[ ${ENABLE_OAUTH2} -eq 1 ]] && _register_setup_function '_setup_oauth2'
-      _environment_variables_oauth2
+  [[ ${ENABLE_SASLAUTHD} -eq 1 ]] && _register_setup_function '_setup_saslauthd'
-      _register_setup_function '_setup_oauth2'
-  fi
-
-  if [[ ${ENABLE_SASLAUTHD} -eq 1 ]]; then
-    _environment_variables_saslauthd
-    _register_setup_function '_setup_saslauthd'
-  fi
 
   _register_setup_function '_setup_dovecot_inet_protocols'
 
@@ -138,7 +129,7 @@ function _register_functions() {
   _register_start_daemon '_start_daemon_cron'
   _register_start_daemon '_start_daemon_rsyslog'
 
-  [[ ${SMTP_ONLY}               -ne 1 ]] && _register_start_daemon '_start_daemon_dovecot'
+  [[ ${SMTP_ONLY} -ne 1 ]] && _register_start_daemon '_start_daemon_dovecot'
 
   if [[ ${ENABLE_UPDATE_CHECK} -eq 1 ]]; then
     if [[ ${DMS_RELEASE} != 'edge' ]]; then

target/scripts/startup/check-stack.sh

@@ -26,24 +26,6 @@ function _check_hostname() {
   fi
 }
 
-function _check_log_level() {
-  if [[ ${LOG_LEVEL} == 'trace' ]] \
-  || [[ ${LOG_LEVEL} == 'debug' ]] \
-  || [[ ${LOG_LEVEL} == 'info' ]]  \
-  || [[ ${LOG_LEVEL} == 'warn' ]]  \
-  || [[ ${LOG_LEVEL} == 'error' ]]
-  then
-    return 0
-  else
-    local DEFAULT_LOG_LEVEL='info'
-    _log 'warn' "Log level '${LOG_LEVEL}' is invalid (falling back to default '${DEFAULT_LOG_LEVEL}')"
-
-    # shellcheck disable=SC2034
-    VARS[LOG_LEVEL]="${DEFAULT_LOG_LEVEL}"
-    LOG_LEVEL="${DEFAULT_LOG_LEVEL}"
-  fi
-}
-
 function _check_spam_prefix() {
   # This check should be independent of ENABLE_POP3 and ENABLE_IMAP
   if [[ ${MOVE_SPAM_TO_JUNK} -eq 0 ]] \

target/scripts/startup/variables-stack.sh

@@ -4,9 +4,15 @@
 declare -A VARS
 
 function _early_variables_setup() {
+  __environment_variables_log_level
   _obtain_hostname_and_domainname
   __environment_variables_backwards_compatibility
   __environment_variables_general_setup
+
+  [[ ${ACCOUNT_PROVISIONER} == 'LDAP' ]] && __environment_variables_ldap
+  [[ ${ENABLE_OAUTH2} -eq 1 ]]           && __environment_variables_oauth2
+  [[ ${ENABLE_SASLAUTHD} -eq 1 ]]        && __environment_variables_saslauthd
+
   __environment_variables_export
 }
 
@@ -177,15 +183,27 @@ function __environment_variables_general_setup() {
   VARS[UPDATE_CHECK_INTERVAL]="${UPDATE_CHECK_INTERVAL:=1d}"
 }
 
-function _environment_variables_oauth2() {
+function __environment_variables_log_level() {
-  _log 'debug' 'Setting OAUTH2-related environment variables now'
+  if [[ ${LOG_LEVEL} == 'trace' ]] \
+  || [[ ${LOG_LEVEL} == 'debug' ]] \
+  || [[ ${LOG_LEVEL} == 'info' ]]  \
+  || [[ ${LOG_LEVEL} == 'warn' ]]  \
+  || [[ ${LOG_LEVEL} == 'error' ]]
+  then
+    return 0
+  else
+    local DEFAULT_LOG_LEVEL='info'
+    _log 'warn' "Log level '${LOG_LEVEL}' is invalid (falling back to default '${DEFAULT_LOG_LEVEL}')"
 
-  VARS[OAUTH2_INTROSPECTION_URL]="${OAUTH2_INTROSPECTION_URL:=}"
+    # shellcheck disable=SC2034
+    VARS[LOG_LEVEL]="${DEFAULT_LOG_LEVEL}"
+    LOG_LEVEL="${DEFAULT_LOG_LEVEL}"
+  fi
 }
 
 # This function handles environment variables related to LDAP.
 # NOTE: SASLAuthd and Dovecot LDAP support inherit these common ENV.
-function _environment_variables_ldap() {
+function __environment_variables_ldap() {
   _log 'debug' 'Setting LDAP-related environment variables now'
 
   VARS[LDAP_BIND_DN]="${LDAP_BIND_DN:=}"
@@ -195,9 +213,15 @@ function _environment_variables_ldap() {
   VARS[LDAP_START_TLS]="${LDAP_START_TLS:=no}"
 }
 
+function __environment_variables_oauth2() {
+  _log 'debug' 'Setting OAUTH2-related environment variables now'
+
+  VARS[OAUTH2_INTROSPECTION_URL]="${OAUTH2_INTROSPECTION_URL:=}"
+}
+
 # This function handles environment variables related to SASLAUTHD
 # LDAP specific ENV handled in: `startup/setup.d/saslauthd.sh:_setup_saslauthd()`
-function _environment_variables_saslauthd() {
+function __environment_variables_saslauthd() {
   _log 'debug' 'Setting SASLAUTHD-related environment variables now'
 
   # This ENV is only used by the supervisor service config `saslauth.conf`: