A wrapper around streamline that supports require()-ing coffee files.

streamline.coffee

coffee = require 'coffee-script'
streamline = require 'streamline'
fs = require('fs')

if require.extensions
    require.extensions['.coffee'] = (module, filename) ->
        content = coffee.compile fs.readFileSync filename, 'utf8'
        if filename.match /_\.coffee$/
            content = streamline.transform.transform content
        module._compile content, filename

test.js

require('coffee-script');
require('./streamline');

function finish(err, res) {
    if (err) console.error(err);
    if (res) console.log(res);
}

require('./timeout_')(finish);

timeout_.coffee

module.exports = (_) ->
    console.log Date.now()
    setTimeout _, 2000
    console.log Date.now()
    return 'passed'