conig override pattern

gistfile1.txt

<?php
/**
 * Global Configuration Override
 *
 * You can use this file for overridding configuration values from modules, etc.
 * You would place values in here that are agnostic to the environment and not
 * sensitive to security.
 *
 * @NOTE: In practice, this file will typically be INCLUDED in your source
 * control, so do not include passwords or other sensitive information in this
 * file.
 */

/**
 * Configuration service
 */
$configuration = array(
    'phpBin'    => null, /* null will attempt to auto-detection via exec 'which php' */
    'ffmpegBin' => '/opt/local/bin/ffmpeg', /* used to build .mov movies */

    'itemPrice' => 4, /* default item price */
    'doTestPurchases' => true, /* will attempt to use the test environaments for payment vendors */

    'paypalSellerEmail' => '[email protected]', /* will attempt to use the sandbox, for sales */
   );


/**
 * You do not need to edit below this line
 */
return array(
    'di' => array(
        'instance' => array(
            'store-configuration' => array(
                'parameters' => array(
                    'options' => array(
                        'ffmpegBin' => $configuration['ffmpegBin'],
                        'itemPrice' => $configuration['itemPrice'],
                    ),
                ),
            ),
            'paypal-configuration' => array(
                'parameters' => array(
                    'options' => array(
                        'recieverEmail' => $configuration['paypalSellerEmail'],
                        'doTestPurchases' => $configuration['doTestPurchases'],
                    ),
                ),
            ),
            'ideal-service-configuration' => array(
                'parameters' => array(
                    'options' => array(
                        'test' => $configuration['doTestPurchases'],
                    ),
                ),
            ),

            /* phing build service */
            'service-configuration' => array(
                'parameters' => array(
                    'options' => array(
                        'phpBin' => $configuration['phpBin']
                    ),
                ),
            ),
        ),
    ),
);