MRI and JRuby friendly Rails Gemfile

Gemfile

source 'https://rubygems.org'

gem 'rails', '~> 3.2.12'
gem "figaro", '~> 0.5.3'
gem 'inherited_resources'

# Upload
gem "paperclip" , '~> 3.4.0'
gem 'paperclip-ffmpeg', '~> 0.9.4'
gem 'aws-sdk', '~> 1.8.2'
gem 'aws-s3', '~> 0.6.3'

# Auth
gem "devise", ">= 2.1.2"
gem "cancan", ">= 1.6.8"

# UI
gem 'jquery-rails', "~> 2.2.1"
gem "simple_form", '~> 2.0.4'
gem "font-awesome-rails", "~> 3.0.2.0"
gem "builder"

 # search
gem "tire", "~> 0.5.4"

# DB
gem 'activerecord-jdbcmysql-adapter', "~> 1.2.7", platform: :jruby
gem 'mysql2', "~> 0.3.11", platform: :ruby


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'less-rails-bootstrap', '~> 2.2.1'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'therubyrhino', '~> 2.0.2', platform: :jruby
  gem 'therubyracer', '~> 0.11.3', platform: :ruby
  gem 'uglifier', '>= 1.0.3'
end

 group :development do
  gem 'guard-rspec', require: false
  gem "binding_of_caller", platform: :ruby
  gem "better_errors", "~> 0.5.0"
  gem "quiet_assets" , '~> 1.0.1'
  gem "capistrano-ext", '~> 1.2.1',  require: false
  gem 'rvm-capistrano', '~> 1.2.7', require: false
  gem 'torquebox-capistrano-support', require: false
end

group :test, :development do
  gem 'shoulda-matchers', '~> 1.4.2'
  gem "rspec-rails", '~> 2.12.2'
  gem 'rspec-html-matchers'
  gem "factory_girl_rails", '~> 4.2.1'
  gem "jasmine", '~> 1.3.1'
  gem 'railroady'
end

group :test do
  gem "database_cleaner", '~> 0.9.1'
  gem "email_spec", '~> 1.4.0'
  gem "launchy", '~> 2.2.0'
  gem "turnip", '~> 1.1.0'
  gem "ci_reporter", '~> 1.8.4'
  gem 'simplecov', require: false
  gem 'simplecov-rcov', require: false
  gem 'flog', require: false
end

# Platform specific gems
group :linux do
  gem 'rb-inotify', '~> 0.8.8'
end

group :staging, :production do
  gem "torquebox", platform: :jruby
end

thanks!