Rails 3.1 Beta -- Working [Heroku Compatible] Gemfile

Gemfile

# source 'http://rubygems.org'
source :gemcutter
gem 'rails', '3.1.0.beta1'

# Bundle edge Rails instead:
# gem 'rails',     :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'

# Asset template engines
gem 'sass'
gem 'coffee-script'
gem 'uglifier'

gem 'jquery-rails'
gem 'sprockets', '2.0.0.beta.2'

group :production do
  gem 'therubyracer-heroku', '0.8.1.pre3'
  gem 'pg', :require => 'pg'
end

group :development do
  gem "therubyracer", :require => 'v8'
end

# Use unicorn as the web server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
# gem 'ruby-debug19', :require => 'ruby-debug'

group :test do
  # Pretty printed test output
  gem 'turn', :require => false
end