function validateExecPath($prog, $path)
 {
     if (!$path) {
         return false;
     }
     list($output, $return) = exec_shell($path . ' 2>&1');
     if ($prog == 'ffmpeg') {
         return $return != 127 && preg_match('#FFmpeg#i', $output);
     } elseif ($prog == 'flvtool2') {
         return $return != 127 && preg_match('#FLVTool2#i', $output);
     } elseif ($prog == 'mencoder') {
         return $return != 127 && (preg_match('#MEncoder#i', $output) || preg_match('#MPlayer#i', $output));
     } else {
         return false;
     }
 }
        $sCurrentWorkingDir = getcwd();
        chdir($sDeployDirPath);
        //Update
        if (file_exists($sDeployDirPath . DIRECTORY_SEPARATOR . 'composer.lock')) {
            if ($bVerbose) {
                $oConsole->writeLine(PHP_EOL . '  * Composer update', \Zend\Console\ColorInterface::LIGHT_MAGENTA);
            }
            if (($iReturn = exec_shell($sComposerSelfUpdateCommand = 'php ' . $sDeployComposerPharPath . ' update', $bVerbose ? $oConsole : null)) !== 0) {
                throw new \RuntimeException('An error occurred while running "' . $sComposerSelfUpdateCommand . '"');
            }
            chdir($sCurrentWorkingDir);
        } else {
            if ($bVerbose) {
                $oConsole->writeLine(PHP_EOL . '  * Composer install', \Zend\Console\ColorInterface::LIGHT_MAGENTA);
            }
            if (($iReturn = exec_shell($sComposerSelfUpdateCommand = 'php ' . $sDeployComposerPharPath . ' install', $bVerbose ? $oConsole : null)) !== 0) {
                throw new \RuntimeException('An error occurred while running "' . $sComposerSelfUpdateCommand . '"');
            }
            chdir($sCurrentWorkingDir);
        }
    }
    if ($bVerbose) {
        $oConsole->writeLine(PHP_EOL . '### Module "' . $sCurrentModuleName . '" has been deployed into into "' . $sDeployDirPath . '" with success ###' . PHP_EOL, \Zend\Console\ColorInterface::GREEN);
    }
    exit(0);
} catch (\Exception $oException) {
    $oConsole->writeLine(PHP_EOL . '======================================================================', \Zend\Console\ColorInterface::GRAY);
    $oConsole->writeLine('An error occured : ' . $oException->getMessage(), \Zend\Console\ColorInterface::RED);
    $oConsole->writeLine('======================================================================', \Zend\Console\ColorInterface::GRAY);
    if ($bVerbose) {
        $oConsole->writeLine($oException . PHP_EOL);