Add RMagick gem and initial version of CarrierWave's uploader.

Gemfile

@@ -22,6 +22,10 @@ gem 'cancan', '1.6.5'
 # Deploy with Capistrano
 gem 'capistrano', '2.5.21'
 
+# For avatar images: https://github.com/jnicklas/carrierwave
+gem 'rmagick', '2.9.2'
+gem 'carrierwave', '0.6.2'
+
 # https://github.com/jnunemaker/twitter
 gem 'twitter', '2.5.0'
 

Gemfile.lock

@@ -52,6 +52,9 @@ GEM
       net-sftp (>= 2.0.0)
       net-ssh (>= 2.0.14)
       net-ssh-gateway (>= 1.0.0)
+    carrierwave (0.6.2)
+      activemodel (>= 3.2.0)
+      activesupport (>= 3.2.0)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -138,6 +141,7 @@ GEM
     rdoc (3.12)
       json (~> 1.4)
     responders (0.6.5)
+    rmagick (2.9.2)
     sass (3.1.19)
     sass-rails (3.2.5)
       railties (~> 3.2.0)
@@ -174,12 +178,14 @@ DEPENDENCIES
   bourbon (= 1.4.0)
   cancan (= 1.6.5)
   capistrano (= 2.5.21)
+  carrierwave (= 0.6.2)
   coffee-rails (= 3.2.2)
   devise (= 2.0.4)
   json (= 1.6.5)
   mail
   mysql2 (= 0.3.11)
   rails (= 3.2.5)
+  rmagick (= 2.9.2)
   sass-rails (= 3.2.5)
   twitter (= 2.5.0)
   uglifier

app/uploaders/avatar_uploader.rb

@@ -0,0 +1,55 @@
+# encoding: utf-8
+
+class AvatarUploader < CarrierWave::Uploader::Base
+
+  # Include RMagick or MiniMagick support:
+  # include CarrierWave::RMagick
+  # include CarrierWave::MiniMagick
+
+  # Include the Sprockets helpers for Rails 3.1+ asset pipeline compatibility:
+  # include Sprockets::Helpers::RailsHelper
+  # include Sprockets::Helpers::IsolatedHelper
+
+  # Choose what kind of storage to use for this uploader:
+  storage :file
+  # storage :fog
+
+  # Override the directory where uploaded files will be stored.
+  # This is a sensible default for uploaders that are meant to be mounted:
+  def store_dir
+    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
+  end
+
+  # Provide a default URL as a default if there hasn't been a file uploaded:
+  # def default_url
+  #   # For Rails 3.1+ asset pipeline compatibility:
+  #   # asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
+  #
+  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
+  # end
+
+  # Process files as they are uploaded:
+  # process :scale => [200, 300]
+  #
+  # def scale(width, height)
+  #   # do something
+  # end
+
+  # Create different versions of your uploaded files:
+  # version :thumb do
+  #   process :scale => [50, 50]
+  # end
+
+  # Add a white list of extensions which are allowed to be uploaded.
+  # For images you might use something like this:
+  # def extension_white_list
+  #   %w(jpg jpeg gif png)
+  # end
+
+  # Override the filename of the uploaded files:
+  # Avoid using model.id or version_name here, see uploader/store.rb for details.
+  # def filename
+  #   "something.jpg" if original_filename
+  # end
+
+end