yii\console\controllers\HelpController::getModuleCommands PHP Method

    protected function getModuleCommands($module)
    {
        $prefix = $module instanceof Application ? '' : $module->getUniqueId() . '/';
        $commands = [];
        foreach (array_keys($module->controllerMap) as $id) {
            $commands[] = $prefix . $id;
        }
        foreach ($module->getModules() as $id => $child) {
            if (($child = $module->getModule($id)) === null) {
                continue;
            }
            foreach ($this->getModuleCommands($child) as $command) {
                $commands[] = $command;
            }
        }
        $controllerPath = $module->getControllerPath();
        if (is_dir($controllerPath)) {
            $files = scandir($controllerPath);
            foreach ($files as $file) {
                if (!empty($file) && substr_compare($file, 'Controller.php', -14, 14) === 0) {
                    $controllerClass = $module->controllerNamespace . '\\' . substr(basename($file), 0, -4);
                    if ($this->validateControllerClass($controllerClass)) {
                        $commands[] = $prefix . Inflector::camel2id(substr(basename($file), 0, -14));
                    }
                }
            }
        }
        return $commands;
    }