preview.js

var http = require('http');
var fs = require('fs');
var argv = require('yargs').argv;
var cheerio = require('cheerio');

var DEFAULT_TEMPLATE = "http://uclabruins.com/ViewArticle.dbml?ATCLID=209624560&DB_OEM_ID=30500";


var template = argv.template || DEFAULT_TEMPLATE;
var pageFilename = argv._[0];

if (!pageFilename) {
  console.error('ERROR: No page specified to preview.');
  process.exit(1);
}

fs.readFile(pageFilename, function(err, page){
  if (err) {
    console.error(err);
    process.exit(1);
  }
  getTemplate(page.toString());
});

function getTemplate(page) {
  http.get(template, function(res){
    res.on('data', function(chunk){
      replaceArticle(chunk.toString(), page);
    });
  });
}

function replaceArticle(template, page) {
  $ = cheerio.load(template);
  $('#article-content').empty();
  $('#article-content').append(page);
  servePreview($.html());
}

function servePreview(html) {
  http.createServer(function(req, res){
    res.writeHead(200, {'Content-Type': 'text/html'});
    res.end(html);
  }).listen(3001, 'localhost');
}

var app =  http.createServer(function(req, res){
    res.writeHead(200, {'Content-Type': 'text/html'});
    res.end(html);
  });

app.get(template, function(){});

app.listen(3001, 'localhost');