RequireJS - Manually bundling some libs together - requirejs

Question

I'm trying to migrate a site to use RequireJS to manage it's JS dependencies. Also I want to bundle some libs together.
Currently we are building a base.min.js that comprises underscore, jquery, bootstrap and backbone. They are used all over our site and thus it makes sense to serve them together.
Nevertheless, I think we should have logically the three libs separate by name, thus I have written the following require.config:
require.config({
baseUrl: '/s/js/libs',
paths: {
app: '../app', shims: '../shims'
},
map: {
'*' : {
// underscore, backbone, jquery and bootstrap are bundled
'underscore': '../base',
'backbone': '../base',
'jquery': '../base',
'bootstrap': '../base'
}
},
shim:{
'bootstrap': {
deps: ['jquery']
},
'backbone': {
deps: ['underscore', 'jquery'],
exports: 'Backbone'
},
'underscore': {
exports: '_'
},
'jquery': {exports: '$'}
}
});
I'm not using the data-main; but instead I'm requiring several things:
require(["jquery", "underscore", "backbone", "bootstrap", "../baseapp"],
function($){
// Next line fixes the bootstrap issue with double modals taken from:
// http://stackoverflow.com/questions/13649459/twitter-bootstrap-multiple-modal-error
$.fn.modal.Constructor.prototype.enforceFocus = function () {};
$('.modal').on('shown', function () {
$('input:text:visible:first, textarea:visible:first', this).focus();
});
$('#search').on('shown', function () {
$('#id_asf-text').focus();
})
require(['micro', 'csrf_xhr', 'locale']);
require(['app/routers']);
});
This however causes the error that $ is undefined.
The global window.$ is defined, but it seems that requirejs is not properly detecting it with the exports of my shims. Even if I do exports: 'window.jQuery' it does not work.
Is this a bug in RequireJS or there a bug in my code? Does map and shim play well together? Does RequireJS support my use case?
Update 2013-11-05
After a long debugging session, I have found that shims are recorded per "real" Module inside RequireJS; so if I just change my shim to be:
shim : {
'../base': {init: function() {return [$, _, Backbone]}}
}
I do get this array as the first argument to my callback. However I would like them to be exploded, i.e; have each of the returned values as arguments...
I thought that an internal map + paths would work. Like this:
var require = {
baseUrl: '/s/js/libs/',
paths: {
app: '../app',
shims: '../shims',
'base-underscore': '../base',
'base-backbone': '../base',
'base-jquery': '../base',
'base-bootstrap': '../base'
},
map: {
'*' : {
// underscore, backbone, jquery and bootstrap are bundled
'underscore': 'base-underscore',
'backbone': 'base-backbone',
'jquery': 'base-jquery',
'bootstrap': 'base-bootstrap',
}
},
shim:{
'base-bootstrap': {
deps: ['base-jquery'],
init: function() {return null}
},
'base-backbone': {
deps: ['base-underscore', 'base-jquery'],
init: function() {return window.Backbone;}
},
'base-underscore': {
init: function() {return window.Underscore;}
},
'base-jquery': {
init: function() {return $}
}
} // shims
};
Unfortunally, it does not. Now the error is: Uncaught Error: Load timeout for modules: base-underscore,base-backbone,base-bootstrap,../base... Notice base-jquery is not listed!

Answer 1

I have found a workaround, but involves a plugin. This is my current solution. On my HTML I have the following config (I changed to require = {...} idiom so that debugging would be easier):
var STATIC_URL = "/s/js/libs/";
var require = {
baseUrl: STATIC_URL,
paths: {
app: '../app',
shims: '../shims',
},
map: {
'*': {
'jquery': 'bundler!jQuery',
'bootstrap': 'bundler!',
'underscore': 'bundler!_',
'backbone': 'bundler!Backbone'
}
},
bundler: {url: '../base'}
};
The bundler.js plugin lies in my js/libs. This is the original CoffeeScript:
global = #
each = (ary, func) ->
if (ary)
i = 0
while i < ary.length and (what = ary[i]) and func(what, i, ary)
i += 1
getGlobal = (value) ->
if not value
value
g = global;
each value.split('.'), (part) ->
g = g[part]
g
define
load: (name, require, onload, config) ->
base = config.bundler?.url ? '../base'
require [base], () ->
if name? and name
value = getGlobal(name)
onload(value)
else
onload()
normalize: (name, norm) -> name
Probably there should be a way to do this without a bundler... I'll keep the question open for while, so that better answers might be provided.