Switch to Exoskeleton from Backbone. Drop jQuery & underscore.

* Dropped jQuery and underscore dependencies.
* Added Davy https://github.com/lvivski/davy for promises.
* Exoskeleton is a no-deps backbone fork http://exosjs.com

See bower.json for the main change you will need to do.

app/controllers/auth-controller.coffee

@@ -1,10 +1,10 @@
 Controller = require 'controllers/base/controller'
+utils = require 'lib/utils'
 
 module.exports = class AuthController extends Controller
   callback: (params) ->
-    _.extend params, _.object window.location.search
-      .slice(1).split('&')
-      .map((string) -> string.split('='))
+    parsed = utils.queryParams.parse window.location.search
+    Backbone.utils.extend params, parsed
     console.log 'AuthController#callback', params
     @publishEvent 'auth:setToken', params.accessToken
     @redirectToRoute 'users#show', [params.login]

app/controllers/users-controller.coffee

@@ -36,7 +36,10 @@ module.exports = class UsersController extends Controller
     # “Sync repos” button.
     @repoSync = new Collection null, model: Repo
     @repoSync.url = @model.url('/sync_repos/')
-    @repoSync.fetch = (options) => $.post @repoSync.url
+    @repoSync.fetch = (options) =>
+      Backbone.utils.ajax
+        url: @repoSync.url,
+        method: 'POST'
     @repoSyncView = new UserRepoSyncView
       collection: @repoSync,
       region: 'sync-repos'

app/initialize.coffee

@@ -1,10 +1,15 @@
 Application = require 'application'
 routes = require 'routes'
 
+Backbone.Deferred = -> new window.Davy
+Backbone.resolveDeferred = (deferred, isResolved, args) ->
+  deferred[if isResolved then 'fulfill' else 'reject'].apply deferred, args
+
 # Initialize the application on DOM ready event.
-$ ->
+document.addEventListener 'DOMContentLoaded', ->
   new Application {
     title: 'Ost.io',
     controllerSuffix: '-controller',
     routes
   }
+, false

app/lib/services/ostio.coffee

@@ -8,7 +8,7 @@ module.exports = class Ostio extends ServiceProvider
   constructor: ->
     super
     @accessToken = localStorage.getItem 'accessToken'
-    authCallback = _.bind(@loginHandler, this, @loginHandler)
+    authCallback = @loginHandler.bind this, @loginHandler
     @subscribeEvent 'auth:setToken', @setToken
     @subscribeEvent 'auth:callback:ostio', authCallback
 
@@ -21,7 +21,7 @@ module.exports = class Ostio extends ServiceProvider
     @accessToken = token
 
   load: ->
-    @resolve()
+    @fulfill()
     this
 
   isLoaded: ->
@@ -31,11 +31,13 @@ module.exports = class Ostio extends ServiceProvider
     console.log 'ajax', url, @accessToken, this
     url = @baseUrl + url
     url += "?access_token=#{@accessToken}" if @accessToken
-    $.ajax {url, data, type, dataType: 'json'}
+    Backbone.utils.ajax {
+      url, data, type, headers: {Accept: 'application/json'}
+    }
 
   # Trigger login popup
   triggerLogin: (loginContext) ->
-    callback = _.bind(@loginHandler, this, @loginHandler)
+    callback = @loginHandler.bind this, @loginHandler
     window.location = URL
 
   # Callback for the login popup
@@ -47,7 +49,7 @@ module.exports = class Ostio extends ServiceProvider
       @publishEvent 'loginSuccessful', {provider: this, loginContext}
 
       # Publish the session
-      @getUserData().done(@processUserData)
+      @getUserData().then @processUserData
     else
       @publishEvent 'loginFail', provider: this, loginContext: loginContext
 
@@ -58,14 +60,14 @@ module.exports = class Ostio extends ServiceProvider
     @publishEvent 'userData', response
 
   getLoginStatus: (callback = @loginStatusHandler, force = false) ->
-    @getUserData().always(callback)
+    @getUserData().then(callback, callback)
 
   loginStatusHandler: (response, status) =>
-    if not response or status is 'error'
+    if not response or response.status is 401
       @publishEvent 'logout'
     else
       parsed = User::parse.call(null, response)
-      @publishEvent 'serviceProviderSession', _.extend parsed,
+      @publishEvent 'serviceProviderSession', Backbone.utils.extend parsed,
         provider: this
         userId: response.id
         accessToken: @accessToken

app/lib/services/service-provider.coffee

@@ -3,15 +3,15 @@ utils = require 'lib/utils'
 module.exports = class ServiceProvider
 
   # Mixin an Event Broker
-  _.extend @prototype, Chaplin.EventBroker
+  Backbone.utils.extend @prototype, Chaplin.EventBroker
 
   loading: false
 
   constructor: ->
     ###console.debug 'ServiceProvider#constructor'###
 
     # Mixin a Deferred
-    _.extend this, $.Deferred()
+    Backbone.utils.extend this, new window.Davy()
 
     utils.deferMethods
       deferred: this
@@ -55,7 +55,7 @@ module.exports = class ServiceProvider
 
   # Trigger login popup
   triggerLogin: (loginContext) ->
-    callback = _.bind(@loginHandler, this, loginContext)
+    callback = @loginHandler.bind this, @loginHandler
     ServiceProviderLibrary.login callback
 
   # Callback for the login popup

app/lib/utils.coffee

@@ -5,7 +5,7 @@
 # Delegate to Chaplin’s utils module
 utils = Chaplin.utils.beget Chaplin.utils
 
-_.extend utils,
+Backbone.utils.extend utils,
   # Functional helpers for handling asynchronous dependancies and I/O
   # -----------------------------------------------------------------
 
@@ -111,12 +111,12 @@ found on host #{host}"
     ->
       # Save the original arguments
       args = arguments
-      if deferred.state() is 'resolved'
+      if deferred.isFulfilled
         # Deferred already resolved, call func immediately
         func.apply context, args
       else
         # Register a done handler
-        deferred.done ->
+        deferred.then ->
           func.apply context, args
         # Invoke the onDeferral callback
         if typeof onDeferral is 'function'

app/models/post.coffee

@@ -12,8 +12,8 @@ module.exports = class Post extends Model
 
   parse: (response) ->
     if response?
-      repoUser = new User _.extend response.topic.repo.user, {}
-      repo = new Repo _.extend response.topic.repo, {user: repoUser}
-      topic = new Topic _.extend response.topic, {repo}
-      user = new User _.extend response.user, {}
-      _.extend response, {topic}
+      repoUser = new User Backbone.utils.extend response.topic.repo.user, {}
+      repo = new Repo Backbone.utils.extend response.topic.repo, {user: repoUser}
+      topic = new Topic Backbone.utils.extend response.topic, {repo}
+      user = new User Backbone.utils.extend response.user, {}
+      Backbone.utils.extend response, {topic}

app/models/repo.coffee

@@ -7,5 +7,5 @@ module.exports = class Repo extends Model
     "/users/#{@get('user').get('login')}/repos/"
 
   parse: (response) ->
-    user = new User _.extend response.user, {}
-    _.extend response, {user}
+    user = new User Backbone.utils.extend response.user, {}
+    Backbone.utils.extend response, {user}

app/models/topic.coffee

@@ -12,6 +12,6 @@ module.exports = class Topic extends Model
 
   parse: (response) ->
     Post = require 'models/post'
-    user = new User _.extend response.repo.user, {}
-    repo = new Repo _.extend response.repo, {user}
-    _.extend response, {repo}
+    user = new User Backbone.utils.extend response.repo.user, {}
+    repo = new Repo Backbone.utils.extend response.repo, {user}
+    Backbone.utils.extend response, {repo}

app/models/user.coffee

@@ -12,10 +12,10 @@ module.exports = class User extends Model
     options = {model: User}
     if response.organizations?
       organizations = new Collection response.organizations, options
-      _.extend response, {organizations}
+      Backbone.utils.extend response, {organizations}
     if response.owners?
       owners = new Collection response.owners, options
-      _.extend response, {owners}
+      Backbone.utils.extend response, {owners}
     response
 
   # Ideally, there should be a special model field for this.

app/views/base/form-view.coffee

@@ -21,12 +21,13 @@ module.exports = class FormView extends View
 
   save: (event) =>
     spinner = new SpinnerView container: @$('.submit-form')
+    dispose = (response) => spinner.dispose()
     @model.save()
-      .done (response) =>
+      .then (response) =>
         @publishSave response
         @dismiss()
-      .always (response) =>
-        spinner.dispose()
+        dispose()
+      , dispose
 
   submit: (event) =>
     event.preventDefault()

app/views/topic/new-topic-form-view.coffee

@@ -40,17 +40,18 @@ module.exports = class NewTopicFormView extends FormView
     spinner = new SpinnerView container: @$('.submit-form')
     end = -> spinner.dispose()
     @model.save()
-      .done (response) =>
+      .then (response) =>
         @post.save()
-          .done (postResponse) =>
+          .then (postResponse) =>
             @$('.new-topic-form-toggle-fields-button').click()
             @publishSave response
             @trigger 'dispose'
             @dispose()
-          .fail (error) =>
+            end()
+          , (error) =>
             @model.destroy()
-          .always(end)
-      .fail(end)
+            end()
+      , end
 
   dispose: ->
     return if @disposed

bower.json

@@ -8,21 +8,21 @@
     "components"
   ],
   "dependencies": {
-    "chaplin": "~0.10.0",
+    "chaplin": "~0.11.3",
     "console-polyfill": "~0.1.0",
-    "lodash": "~1.3.1",
     "moment": "~2.0.0",
-    "jquery": "~2.0.2",
-    "normalize-css": "~2.1.2"
+    "normalize-css": "~2.1.2",
+    "exoskeleton": "~0.4.0",
+    "davy": "~0.0.5"
   },
   "overrides": {
-    "backbone": {
+    "chaplin": {
       "dependencies": {
-        "lodash": "*",
-        "jquery": "*"
-      },
-      "main": "backbone.js"
+        "exoskeleton": "*"
+      }
     },
-    "moment": {"main": "moment.js"}
+    "moment": {
+      "main": "moment.js"
+    }
   }
 }