TYPO3 / TYPO3.CMS

        $fileUid = $file->getUid();

        $fileInfo = $file->getStorage()->getFileInfo($file);

        $fileSize = (int)$fileInfo['size'];

        if ($fileSize !== (int)$file->getProperty('size')) {

            $this->error('File size of ' . $file->getCombinedIdentifier() . ' is not up-to-date in index! File added with current size.');

            $this->dat['records']['sys_file:' . $fileUid]['data']['size'] = $fileSize;

        }

        $fileSha1 = $file->getStorage()->hashFile($file, 'sha1');

        if ($fileSha1 !== $file->getProperty('sha1')) {

            $this->error('File sha1 hash of ' . $file->getCombinedIdentifier() . ' is not up-to-date in index! File added on current sha1.');

            $this->dat['records']['sys_file:' . $fileUid]['data']['size'] = $fileSize;

        }

        $fileSha1 = $file->getStorage()->hashFile($file, 'sha1');

        if ($fileSha1 !== $file->getProperty('sha1')) {

            $this->error('File sha1 hash of ' . $file->getCombinedIdentifier() . ' is not up-to-date in index! File added on current sha1.');

            $this->dat['records']['sys_file:' . $fileUid]['data']['sha1'] = $fileSha1;

        }

        $fileRec = [];

        $fileRec['filesize'] = $fileSize;