#148 Custom App Generators (revised)

Feb 03, 2013 | 10 minutes | Tools

Learn how to customize the Rails app generator to fit your preference. This episode shows how to do this using .railsrc file, app templates, app builders, RailsWizard, and AppScrolls.

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          terminal
        
rails new blog -m app_template.rb
rails new blog -b app_builder.rb
gem install appscrolls
rbenv rehash
scrolls list
scrolls new blog -s rspec capybara guard

          app_template.rb
        
remove_file "README.rdoc"
create_file "README.md", "TODO"

gem "rspec-rails", group: [:test, :development]
run "bundle install"
generate "rspec:install"

if yes? "Do you want to generate a root controller?"
  name = ask("What should it be called?").underscore
  generate :controller, "#{name} index"
  route "root to: '#{name}\#index'"
  remove_file "public/index.html"
end

git :init
append_file ".gitignore", "config/database.yml"
run "cp config/database.yml config/example_database.yml"
git add: ".", commit: "-m 'initial commit'"

          app_builder.rb
        
class AppBuilder < Rails::AppBuilder
  def readme
    create_file "README.md", "TODO"
  end
  
  def test
    @generator.gem 'rspec-rails', group: [:test, :development]
    run 'bundle install'
    generate 'rspec:install'
  end
  
  def leftovers
    if yes? "Do you want to generate a root controller?"
      name = ask("What should it be called?").underscore
      generate :controller, "#{name} index"
      route "root to: '#{name}\#index'"
      remove_file "public/index.html"
    end

    git :init
    append_file ".gitignore", "config/database.yml"
    run "cp config/database.yml config/example_database.yml"
    git add: ".", commit: "-m 'initial commit'"
  end
end