GrumPHP\Task\Shell::run PHP Method

    public function run(ContextInterface $context)
    {
        $config = $this->getConfiguration();
        $files = $context->getFiles()->extensions($config['triggered_by']);
        if (0 === count($files)) {
            return TaskResult::createSkipped($this, $context);
        }
        $exceptions = [];
        foreach ($config['scripts'] as $script) {
            try {
                $this->runShell($script);
            } catch (RuntimeException $e) {
                $exceptions[] = $e->getMessage();
            }
        }
        if (count($exceptions)) {
            return TaskResult::createFailed($this, $context, implode(PHP_EOL, $exceptions));
        }
        return TaskResult::createPassed($this, $context);
    }