/**
* Produce a diff (using the "diff" application) between two strings
* The function will write the two input strings to temporary files, then execute the diff program, delete the temp files and return the result.
*
* @param string $str1 String 1
* @param string $str2 String 2
* @return array The result from the exec() function call.
* @access private
*/
public function getDiff($str1, $str2)
{
// Create file 1 and write string
$file1 = GeneralUtility::tempnam('diff1_');
GeneralUtility::writeFile($file1, $str1);
// Create file 2 and write string
$file2 = GeneralUtility::tempnam('diff2_');
GeneralUtility::writeFile($file2, $str2);
// Perform diff.
$cmd = $GLOBALS['TYPO3_CONF_VARS']['BE']['diff_path'] . ' ' . $this->diffOptions . ' ' . $file1 . ' ' . $file2;
$res = array();
CommandUtility::exec($cmd, $res);
unlink($file1);
unlink($file2);
return $res;
}
