ember-cli-ajh/lib/utilities/require-as-hash.js

Command line tool for developing ambitious ember.js apps

'use strict';
var stringUtils = require('ember-cli-string-utils');

// Gathers subclasses of a certain specified base class into a hash.
//
// e.g.:
// Files:
// - ./hamster.js which exports an class of Hamster subclass of Rodent
// - ./parrot.js which exports an instance of Parrot (not a Rodent!)
//
// requireAsHash('./*.js', Rodent):
// {
//   Hamster: Hamster // Same as require('./hamster.js')
// }


var globSync      = require('glob').sync;
var path          = require('path');
var getCallerFile = require('./get-caller-file');

module.exports = requireAsHash;
function requireAsHash(pattern, type) {
  var callerFileDir = path.dirname(getCallerFile());
  return globSync(pattern, { cwd: callerFileDir })
    .reduce(function(hash, file) {

      var klass = require(callerFileDir + '/' + file);
      if (!type || (klass.prototype instanceof type)) {
        hash[stringUtils.classify(path.basename(file, '.js'))] = klass;
      }
      return hash;
    }, {});
}