build script

gistfile1.js

#!/usr/bin/env node

"use strict";

var fs = require('fs'),
    gw = require('globwatcher').globwatcher;

var cssw = gw('./source/*.styl', {persistent: true});

cssw.on('added', function (filename) {
  console.log(filename + ' added');
  buildStylus(filename);
});

cssw.on('changed', function (filename) {
  console.log(filename + '  changed');
  buildStylus(filename);
});

cssw.ready.then(function() {
  console.log('watching for changes to stylus');
});

var stylus = require('stylus'),
    nib = require('nib');
function buildStylus(filename) {
  fs.readFile(filename, 'utf8', function (err, data) {
    if (err) console.error(err);
    stylus(data)
      .use(nib())
      .render(function (err, css) {
        if (err) return console.error(err);
        fs.writeFile('./build/www/index.css', css, function (err) {
          if (err) return console.error(err);
          console.log('CSS compiled');
        });
      });
  });
}