Module Loader

loader.js

var fs = require('fs'),
  path = require('path');

module.exports = function(dir, ignore) {
  var result = {};
  loadModules(dir, result, ignore);
  return result;
};

function convertToCamelCase(value) {
  return value.replace(/[-_]([a-z])/g, function(g) {
    return g[1].toUpperCase();
  });
}

function loadModules(dir, target, ignore) {
  ignore || (ignore = []);

  fs.readdirSync(dir).forEach(function(item) {
    var itemPath = path.resolve(dir, item),
      camelCasedItem = convertToCamelCase(item),
      name = path.basename(item, '.js'),
      camelCasedName = convertToCamelCase(name),
      stat = fs.statSync(itemPath);

    if (stat.isDirectory()) {
      if (ignore.indexOf(item) !== -1) {
        return;
      }

      target[camelCasedItem] = {};
      loadModules(itemPath, target[camelCasedItem]);
    } else {
      if (name === 'index' || ignore.indexOf(name) !== -1) {
        return;
      }

      target[camelCasedName] = require(itemPath);
    }
  });
}