/**
* Get a file's timestamp.
*
* @param string $path path to file
*
* @throws FileNotFoundException
*
* @return string|false timestamp or FALSE when fails
* to fetch timestamp from existing file
*/
public function getTimestamp($path)
{
$path = Util::normalizePath($path);
$this->assertPresent($path);
if ($timestamp = $this->cache->getTimestamp($path)) {
return $timestamp;
}
if (!($object = $this->adapter->getTimestamp($path))) {
return false;
}
$object = $this->cache->updateObject($path, $object, true);
return $object['timestamp'];
}
