Magento CLI create package

packager.php

<?php

require_once 'abstract.php';

class RSKuipers_Shell_Packager extends Mage_Shell_Abstract
{
    public function run()
    {
        $package = $this->getArg('package');
        $outputDir = $this->getArg('output');
        $root = $this->getArg('root');
        if (!$package || !$outputDir) {
            die($this->usageHelp());
        }

        if ($root) {
            chdir($root);
        }

        $package = new Mage_Connect_Package($package);
        $package->save($outputDir);
    }

    public function usageHelp()
    {
        return <<<USAGE
Usage:  php -f packager.php -- [options]

  --root <dir>          Root directory where the files to package are
  --package <file>      package.xml to use
  --output <dir>        directory to output the .tgz

USAGE;
    }
}

$shell = new RSKuipers_Shell_Packager();
$shell->run();