Selecting Kohana enviroment

gistfile1.php

<?php

if ($_SERVER['SERVER_NAME'] == 'localhost' ) {
     Kohana::$environment = Kohana::DEVELOPMENT;
} else {
     Kohana::$environment = Kohana::PRODUCTION;
}

I love this:

Kohana::$environment = Kohana::DEVELOPMENT;

if (isset($_SERVER['KOHANA_ENV']))
{
    Kohana::$environment = constant('Kohana::'.strtoupper($_SERVER['KOHANA_ENV']));
}

and for config:

/**
 * Attach a file reader to config. Multiple readers are supported.
 */
Kohana::$config->attach(new Config_File);

// Custom config file
switch (Kohana::$environment):
    case Kohana::PRODUCTION:  $config_dir = 'config/production';  break;
    case Kohana::STAGING:     $config_dir = 'config/staging';     break;
    case Kohana::TESTING:     $config_dir = 'config/testing';     break;
    case Kohana::DEVELOPMENT: $config_dir = 'config/development'; break;
endswitch;

Kohana::$config->attach(new Config_File($config_dir));