#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