.. constant. An optional final
parameter may be supplied to specify the locale (e.g. 'en_US').
| static public requireComponents ( ) |
/**
* Execute gzip to compress or extract files.
* @param $filePath string file to be compressed or uncompressed.
* @param $decompress boolean optional Set true if the passed file
* needs to be decompressed.
* @param $errorMsg string
* @return false|string The file path that was created with the operation
* or false in case of fail.
*/
private function _executeGzip($filePath, $decompress = false, &$errorMsg)
{
PKPLocale::requireComponents(LOCALE_COMPONENT_PKP_ADMIN);
$gzipPath = Config::getVar('cli', 'gzip');
if (!is_executable($gzipPath)) {
$errorMsg = __('admin.error.executingUtil', array('utilPath' => $gzipPath, 'utilVar' => 'gzip'));
return false;
}
$gzipCmd = escapeshellarg($gzipPath);
if ($decompress) {
$gzipCmd .= ' -d';
}
// Make sure any output message will mention the file path.
$output = array($filePath);
$returnValue = 0;
$gzipCmd .= ' ' . $filePath;
if (!Core::isWindows()) {
// Get the output, redirecting stderr to stdout.
$gzipCmd .= ' 2>&1';
}
exec($gzipCmd, $output, $returnValue);
if ($returnValue > 0) {
$errorMsg = __('admin.error.utilExecutionProblem', array('utilPath' => $gzipPath, 'output' => implode(PHP_EOL, $output)));
return false;
}
if ($decompress) {
return substr($filePath, 0, -3);
} else {
return $filePath . '.gz';
}
}
