Gruntfile.js

/**
 * Modular Gruntfile setup borrowed from SailsJS
 *  All tasks are loaded from the `tasks` directory.
 */

module.exports = function (grunt) {
  var includeAll;

  try{
    includeAll = require('include-all');
  } catch (e0) {
    console.error('Could not find `include-all` module.');
    console.error('Skipping grunt tasks...');
    console.error('To fix this, please run:');
    console.error('npm install include-all --save');
    console.error();

    grunt.registerTask('default', []);
    return;
  }

  function loadTasks(relPath) {
    return includeAll({
      dirname: require('path').resolve(__dirname, relPath),
      filter: /(.+)\.js$/
    }) || {};
  }

  function invokeConfigFn(tasks) {
    for (var taskName in tasks) {
      if (tasks.hasOwnProperty(taskName)) {
        tasks[taskName](grunt);
      }
    }
  }

  // Load task functions
  var taskConfigurations = loadTasks('./tasks/config'),
    registerDefinitions = loadTasks('./tasks/register');

  // ensure that a default task exists
  if (!registerDefinitions.default) {
    registerDefinitions.default = function (grunt) { grunt.registerTask('default', []); };
  }

  // Run task functions to configure Grunt
  invokeConfigFn(taskConfigurations);
  invokeConfigFn(registerDefinitions);
};