How to instantiate compound environment in a jake file?

I am trying to use a jake file to run a custom task to do some actions with Models.

Below is the code i use to initialize the Models used in the application in a jake file.

```
var conf = require('../config/database.json')[process.env.NODE_ENV || 'development'];
var mongoose = require('mongoose');
var db = mongoose.connect(conf.url);
```

This code is working to establish a connection, but i could not import all the Models i have defined in db/schema.js file as like i did in mongooose.js file

```
exports.init = function (compound) {
var conf = require('./database.json')[compound.app.set('env')];
var mongoose = require('mongoose');
mongoose.connect(conf.url);
require(compound.root + '/db/schema')(mongoose, compound);
};
```

since i don't have any reference to `compound` in jake file, i could not initialize all the models in the jake file and i have to redefine all the models in shcema.js files in jake file.

Please suggest.