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

    protected function getCommandHelp($controller)
    {
        $controller->color = $this->color;
        $this->stdout("\nDESCRIPTION\n", Console::BOLD);
        $comment = $controller->getHelp();
        if ($comment !== '') {
            $this->stdout("\n{$comment}\n\n");
        }
        $actions = $this->getActions($controller);
        if (!empty($actions)) {
            $this->stdout("\nSUB-COMMANDS\n\n", Console::BOLD);
            $prefix = $controller->getUniqueId();
            $maxlen = 5;
            foreach ($actions as $action) {
                $len = strlen($prefix . '/' . $action) + 2 + ($action === $controller->defaultAction ? 10 : 0);
                if ($maxlen < $len) {
                    $maxlen = $len;
                }
            }
            foreach ($actions as $action) {
                $this->stdout('- ' . $this->ansiFormat($prefix . '/' . $action, Console::FG_YELLOW));
                $len = strlen($prefix . '/' . $action) + 2;
                if ($action === $controller->defaultAction) {
                    $this->stdout(' (default)', Console::FG_GREEN);
                    $len += 10;
                }
                $summary = $controller->getActionHelpSummary($controller->createAction($action));
                if ($summary !== '') {
                    $this->stdout(str_repeat(' ', $maxlen - $len + 2) . Console::wrapText($summary, $maxlen + 2));
                }
                $this->stdout("\n");
            }
            $scriptName = $this->getScriptName();
            $this->stdout("\nTo see the detailed information about individual sub-commands, enter:\n");
            $this->stdout("\n  {$scriptName} " . $this->ansiFormat('help', Console::FG_YELLOW) . ' ' . $this->ansiFormat('<sub-command>', Console::FG_CYAN) . "\n\n");
        }
    }