src/WatcherPlugin.php
public function watch(WatcherInterface $watcher)
    {
        $events = $this->getEvents();
        $watcher->watch($this->getTrackedPaths(), $events, [$this, 'runPeridot']);
    }
public function watch(WatcherInterface $watcher)
    {
        $events = $this->getEvents();
        $watcher->watch($this->getTrackedPaths(), $events, [$this, 'runPeridot']);
    }
Watch file events and rerun peridot when changes are received

@param InputInterface $input
@param OutputInterface $output