hbsHelpers.js

/**
 * Helper Functions for Handlebars Templating engine
 */


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

/**
 * This function loops through a directory, and setups up all of the
 * associated files as Handlebar Partials.
 *
 * @param dir {String} - Path of the diretory to use as partials directory
 * @param callback {Function} - optional callback
 */
function registerPartials(dir, callback) {

  /**
   * Use the filesystem object to retrieve a list of the files in the
   * passed in directory
   */
  fs.readdir(dir, function(error, list) {

      /** if there is an error, return the error value **/
      if (error) {
        return callback && callback(error);
      }

      /** Iterate through the list and assign the partial **/
      list.forEach(function(fileName) {
        if (path.extname(fileName)!=='.hbs') { return; }

        var fn = _dir + '/' + fileName,
                stat = fs.statSync(fn);

        /** if this is a directory, then recurse through it **/
        if (stat.isDirectory()) {
          registerPartials(fn);
        } 
        else if (stat.isFile())

          var content = fs.readFileSync(fn, 'utf8');

          Arrow.Middleware.getRendererEngine('hbs').registerPartial(fileName.replace(".hbs", ""), content)

      });
      
      callback && callback();
  });
}


exports.registerPartials = registerPartials;