wrapper.js

// Stylus 'CSS' wrapper for SocketStream 0.3

var fs = require('fs'),
    stylus = require('stylus'),
    plugins = {},
    _prependedStylus;

exports.prependStylus = function(prependedStylus) {
  if(typeof prependedStylus === 'string') {
    _prependedStylus = prependedStylus;
  }
};

exports.init = function(root, config) {

  return {

    name: 'Stylus',

    extensions: ['styl', 'stylus'],

    assetType: 'css',

    contentType: 'text/css',

    compile: function(path, options, cb) {

      // Get dir from path to enable @include commmand
      var dir = path.split('/'); dir.pop();

      var input = fs.readFileSync(path, 'utf8');

      var compress = options && options.compress;

      if(_prependedStylus) {
        input = _prependedStylus + '\n' + input;
      }

      var sss = stylus(input, {filename: path, paths: [dir.join('/')]});
      for (var c in config) {
        sss.set(c, config[c]);
      }
      if (config && config.extra) {
        for (var plugin in config.extra) {
          sss.use(config.extra[plugin]());
        }
      }
      sss.render(function(err, css) {
        if (err) {
          var message = '! - Unable to compile Stylus file %s into CSS';
          console.log(String.prototype.hasOwnProperty('red') && message.red || message, path);
          console.log(err);
        }
        cb(css);
      });
    }
  };
};