RackInjection
This very simple gem just provides a middleware named RackInjection that allows you to inject arbitrary key-value pairs into the Rack env on every request.
Installation
You know how to install gems...
Usage
In your config.ru file:
use RackEnvInjector, 'rack.logger' => my_special_logger
Now env['rack.logger'] will refer to my_special_logger in every
request.
Contributing
If send me a pull request, I promise I'll look at it.