public function removeCacheFile($locale)
    {
        $localeExploded = explode('_', $locale);
        $finder = new Finder();
        $finder->files()->in($this->options['cache_dir'])->name(sprintf( '/catalogue\.%s.*\.php$/', $localeExploded[0]));
        $deleted = true;
        foreach ($finder as $file) {

            $path = $file->getRealPath();
            $this->invalidateSystemCacheForFile($path);
            $deleted = unlink($path);

            $metadata = $path.'.meta';
            if (file_exists($metadata)) {
                $this->invalidateSystemCacheForFile($metadata);
                unlink($metadata);
            }
        }

        return $deleted;
    }