Nodejs Static Site Builder / Watcher - Jade/Styl -> HTML/CSS

compile_site.js

var stylus = require('stylus'),
    jade   = require('jade'),
    fs     = require('fs');

function compile_jade(){
  console.log('compiling html index');
  var fn = jade.compile(fs.readFileSync('index.jade', 'utf8'), {pretty: true});
  if (fn){
    fs.writeFileSync('index.html', fn());
  } else {
    console.log('Bad compile on index jade template');
  }
}

function compile_styl(){
  console.log('compiling stylsheets');
  stylus.render(fs.readFileSync('site.styl', 'utf8'), {filename: 'site.styl', pretty: true}, function(err, css){
    if (err){
      console.log('bad compile on stylesheet');
      console.log(err);
    } else {
      fs.writeFileSync('site.css', css);
    }
  });
}

function wrap_cb(cbfn){
  return function(curr, prev){
    if (curr.mtime.getTime() != prev.mtime.getTime()){
      console.log('Found Change.');
      cbfn();
    }
  }
}

fs.watchFile('index.jade', wrap_cb(compile_jade));
fs.watchFile('site.styl', wrap_cb(compile_styl));

compile_jade();
compile_styl();