listen('\OC\Updater', 'maintenanceStart', function () use ($eventSource, $l) { $eventSource->send('success', (string)$l->t('Turned on maintenance mode')); }); $updater->listen('\OC\Updater', 'maintenanceEnd', function () use ($eventSource, $l) { $eventSource->send('success', (string)$l->t('Turned off maintenance mode')); }); $updater->listen('\OC\Updater', 'dbUpgrade', function () use ($eventSource, $l) { $eventSource->send('success', (string)$l->t('Updated database')); }); $updater->listen('\OC\Updater', 'failure', function ($message) use ($eventSource) { $eventSource->send('failure', $message); $eventSource->close(); OC_Config::setValue('maintenance', false); }); $updater->upgrade(); $eventSource->send('done', ''); $eventSource->close(); }