gem 'minimum-omniauth-scaffold'

bundle

gem install minimum-omniauth-scaffold

rails g minimum:omniauth:scaffold
----------
      create  config/initializers/rails_config.rb
      create  config/settings.yml
      create  config/settings.local.yml
      create  config/settings/development.yml
      create  config/settings/production.yml
      create  config/settings/test.yml
      create  config/initializers/omniauth.rb
      insert  config/routes.rb
      insert  config/routes.rb
      insert  config/application.rb
      insert  config/application.rb
      insert  config/application.rb
      insert  config/environments/production.rb
      insert  config/environments/development.rb
        gsub  config/environments/development.rb
      insert  config/environments/development.rb
      create  config/locales/ja.yml
      create  config/locales/translation_ja.yml
      create  db/migrate/20000101000000_create_users.rb
      create  app/models/user.rb
      insert  app/controllers/application_controller.rb
      create  app/controllers/sessions_controller.rb
      create  app/controllers/top_controller.rb
        gsub  app/views/layouts/application.html.erb
        gsub  app/views/layouts/application.html.erb
      create  app/views/layouts/_user_icon.html.erb
      create  app/views/top/index.html.erb
      create  app/assets/stylesheets/scaffolds.css.scss
      remove  README.rdoc
      create  README.md
      append  .gitignore
----------

rake db:migrate

heroku config:set TWITTER_KEY=xxxxxxxxxx TWITTER_SECRET=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

heroku config:set FACEBOOK_APP_ID=xxxxxxxxxx FACEBOOK_APP_SECRET=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

heroku config:set GITHUB_CLIENT_ID=xxxxxxxxxx GITHUB_SECRET=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx