Package: roundcube Version: 1.3.8+dfsg.1-2 I expected to see $config['language'] = 'ru_RU' in the configuration file after setting debconf option roundcube/language accordingly, but that's not what happened:
# echo roundcube-core roundcube/language string ru_RU | debconf-set-selections # apt-get install roundcube # grep language /etc/roundcube/config.inc.php || echo Not found Not found Postinst script roundcube-core.postinst has no way to add new lines to the template placed at /usr/share/roundcube/config.inc.php.sample. It can only modify values of existing variables. Current version of the template doesn't contain $config['language'] line hence this variable can't be set by postinst script during configuration. Unfortunately, we can't simply copy $config['language'] line from defaults.inc.php to config.inc.php.sample. If no $config['language'] line exists in the configuration file or its value is null, roundcube uses HTTP_ACCEPT_LANGUAGE-based language auto-detection, which is desired behavior. Debconf sets roundcube/language to en_US (or some other language based on locale) by default which would disable auto-detection for all installations if this value gets propagated to the configuration file every time. In order to avoid this, we need to add $config['language'] line to the configuration file only if roundcube/language has been manually set (preseeded).
