forgot to add an file

lib/locomotive/carrierwave/asset.rb

@@ -0,0 +1,78 @@
+module Locomotive
+  module CarrierWave
+    module Uploader
+      module Asset
+
+        extend ActiveSupport::Concern
+
+        included do
+
+          process :set_content_type
+          process :set_size
+          process :set_width_and_height
+
+        end
+
+        module ClassMethods
+
+          def content_types
+            {
+              :image      => ['image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png', 'image/jpg', 'image/x-icon'],
+              :media      => [/^video/, 'application/x-shockwave-flash', 'application/x-swf', /^audio/, 'application/ogg', 'application/x-mp3'],
+              :pdf        => ['application/pdf', 'application/x-pdf'],
+              :stylesheet => ['text/css'],
+              :javascript => ['text/javascript', 'text/js', 'application/x-javascript', 'application/javascript'],
+              :font       => ['application/x-font-ttf', 'application/vnd.ms-fontobject', 'image/svg+xml', 'application/x-woff']
+            }
+          end
+
+        end
+
+        module InstanceMethods
+
+          def set_content_type(*args)
+            value = :other
+
+            content_type = file.content_type == 'application/octet-stream' ? File.mime_type?(original_filename) : file.content_type
+
+            self.class.content_types.each_pair do |type, rules|
+              rules.each do |rule|
+                case rule
+                when String then value = type if content_type == rule
+                when Regexp then value = type if (content_type =~ rule) == 0
+                end
+              end
+            end
+
+            model.content_type = value
+          end
+
+          def set_size(*args)
+            model.size = file.size
+          end
+
+          def set_width_and_height
+            if model.image?
+              magick = ::Magick::Image.read(current_path).first
+              model.width, model.height = magick.columns, magick.rows
+            end
+          end
+
+          def image?(file)
+            model.image?
+          end
+
+          def to_liquid
+            {
+              :url      => self.url,
+              :filename => (File.basename(self.url) rescue ''),
+              :size     => self.size
+            }.stringify_keys
+          end
+
+        end
+
+      end
+    end
+  end
+end