/**
* This method copy provided file into repository assuring unique name.
* Usually the file you want to add to the repository reside in tmp dir or so. Where you had been working on it.
* After this function is executed, you can safely remove the source file.
*
* @param string $file absolute path to file in tmp directory.
* @param null|string $desiredName desired file name in repository.
* @return string relative file name in repository.
* @throws \Ip\Exception
*/
function ipRepositoryAddFile($file, $desiredName = null)
{
$repositoryModel = \Ip\Internal\Repository\Model::instance();
return $repositoryModel->addFile($file, $desiredName);
}
