Gaufrette\Adapter\PhpseclibSftp::ensureDirectoryExists PHP Method

    protected function ensureDirectoryExists($directory, $create)
    {
        $pwd = $this->sftp->pwd();
        if ($this->sftp->chdir($directory)) {
            $this->sftp->chdir($pwd);
        } elseif ($create) {
            if (!$this->sftp->mkdir($directory, 0777, true)) {
                throw new \RuntimeException(sprintf('The directory \'%s\' does not exist and could not be created (%s).', $this->directory, $this->sftp->getLastSFTPError()));
            }
        } else {
            throw new \RuntimeException(sprintf('The directory \'%s\' does not exist.', $this->directory));
        }
    }