Upload new/changed images to GitHub when saving MD

src/coffee/controllers/item_page_controller.coffee

@@ -6,6 +6,7 @@ All rights reserved.
 ###
 
 AdsenseController         = require './adsense_controller'
+EditableFile              = require '../models/editable_file'
 FullRecipeController      = require './full_recipe_controller'
 ImageLoader               = require './image_loader'
 Item                      = require '../models/item'
@@ -42,7 +43,7 @@ module.exports = class ItemPageController extends PageController
         @imageLoader = options.imageLoader
         @modPack     = options.modPack
 
-        @_editingFile = null
+        @_descriptionFile = null
         @_itemSlug    = options.itemSlug
 
         @modPack.on Event.change, => @tryRefresh()
@@ -155,13 +156,16 @@ module.exports = class ItemPageController extends PageController
         if not @model.item?
             return w.reject new Error 'must have an item'
 
-        @client.fetchFile path:GitHub.file.itemDescription modSlug:@_itemSlug.mod, itemSlug:@_itemSlug.item
-            .then (response)=>
-                @_editingFile = response.json.data
-                @_editingFile.content = new Buffer(@_editingFile.content, 'base64').toString('utf8')
+        pathArgs = modSlug:@_itemSlug.mod, itemSlug:@_itemSlug.item
+        attributes =
+            fileName: GitHub.file.itemDescription.fileName pathArgs
+            path:     GitHub.file.itemDescription.path pathArgs
 
-                if @_editingFile.content.length > 0
-                    @model.item.parse @_editingFile.content
+        @_descriptionFile = new EditableFile attributes, client:@client
+        @_descriptionFile.fetch()
+            .then =>
+                if @_descriptionFile.encodedData.length > 0
+                    @model.item.parse @_descriptionFile.getDecodedData 'utf8'
                 else
                     @model.item.description = ''
 
@@ -169,15 +173,18 @@ module.exports = class ItemPageController extends PageController
 
     _endEditingDescription: ->
         oldDescription = @model.item.description
+        promises = []
+
+        commitMessage = "User-submitted image for #{@model.item.name} from #{global.hostName}"
+        for imageFile in @_descriptionController.imageFiles
+            promises.push imageFile.save commitMessage
+
+        commitMessage = "User-submitted text for #{@model.item.name} from #{global.hostName}"
         @model.item.description = @_descriptionController.model
+        @_descriptionFile.setDecodedData @model.item.unparse()
+        promises.push @_descriptionFile.save commitMessage
 
-        args =
-            content: new Buffer(@model.item.unparse(), 'utf8').toString('base64')
-            message: "User-submitted text for #{@model.item.name}"
-            path:    GitHub.file.itemDescription modSlug:@_itemSlug.mod, itemSlug:@_itemSlug.item
-            sha:     @_editingFile.sha
-
-        @client.updateFile args
+        w.all promises
             .catch (e)=>
                 @model.item.description = oldDescription
                 throw e

src/coffee/controllers/markdown_image_controller.coffee

@@ -46,10 +46,7 @@ module.exports = class MarkdownImageController extends BaseController
             mimeType = match[1]
             encoding = match[2]
 
-            @model.set
-                encodedData: encodedData
-                status:      MarkdownImage.Status.updateable
-
+            @model.encodedData = encodedData
             logger.info "loaded #{encodedData.length} bytes from #{file.name} as #{mimeType}"
 
         logger.info "starting to read local file: #{file.name}"

src/coffee/controllers/markdown_image_list_controller.coffee

@@ -25,7 +25,7 @@ module.exports = class MarkdownImageListController extends BaseController
     # Public Methods ###############################################################################
 
     getImageUrlForFile: (fileName)->
-        @model.getImageUrlForFile fileName
+        @model.getFile(fileName).imageUrl
 
     reset: ->
         @model.reset()
@@ -68,7 +68,7 @@ module.exports = class MarkdownImageListController extends BaseController
         super
 
     refresh: ->
-        @model.loadImages()
+        @model.fetchImages()
 
         @_controllers ?= []
         index = 0
@@ -95,6 +95,5 @@ module.exports = class MarkdownImageListController extends BaseController
         return if newValid is oldValid
 
         @_valid = newValid
-        logger.debug "setting mic.valid to #{@_valid}"
         @trigger Event.change + ':valid', this, oldValid, newValid
         @trigger Event.change

src/coffee/controllers/markdown_section_controller.coffee

@@ -104,7 +104,8 @@ module.exports = class MarkdownSectionController extends BaseController
             .then =>
                 @state = State.confirming
             .catch (e)=>
-                logger.error "failed to end editing: #{e}"
+                message = if e.stack? then e.stack else e
+                logger.error "failed to end editing: #{message}"
                 @state = State.appologizing
             .delay @confirmDuration
             .then =>
@@ -130,6 +131,9 @@ module.exports = class MarkdownSectionController extends BaseController
         @trigger Event.change + ':imageBase', this, oldImageBase, newImageBase
         @trigger Event.change, this
 
+    getImageFiles: ->
+        return @_imageListController.model.all
+
     getState: ->
         return @_state
 
@@ -143,9 +147,10 @@ module.exports = class MarkdownSectionController extends BaseController
         @_updateStateVisibility()
 
     Object.defineProperties @prototype,
-        editable:  {get:@prototype.isEditable}
-        imageBase: {get:@prototype.getImageBase, set:@prototype.setImageBase}
-        state:     {get:@prototype.getState,     set:@prototype.setState}
+        editable:   { get:@prototype.isEditable }
+        imageBase:  { get:@prototype.getImageBase, set:@prototype.setImageBase }
+        imageFiles: { get:@prototype.getImageFiles }
+        state:      { get:@prototype.getState,     set:@prototype.setState }
 
     # BaseController Overrides #####################################################################
 
@@ -211,7 +216,6 @@ module.exports = class MarkdownSectionController extends BaseController
 
     _updateButtonStates: ->
         for $button in [ @$previewButton, @$saveButton ]
-            logger.debug "updating buttons based upon valid state: #{@_imageListController.valid}"
             if @_imageListController.valid
                 $button.prop 'disabled', false
             else