Template based on http://blog.bryanbibat.net/2011/09/24/starting-a-professional-rails-3-1-app-with-web-app-theme-devise-and-kaminari/

standard_template.rb

gem 'devise' 
gem 'kaminari'
gem 'haml'

gem 'capybara', :group => [:development, :test]
gem 'rspec-rails', :group => [:development, :test]
gem 'haml-rails', :group => [:development, :test]
gem 'hpricot', :group => [:development, :test]
gem 'ruby_parser', :group => [:development, :test]
gem 'web-app-theme', :group => [:development, :test]

run 'bundle install'

generate 'controller',  'home index'
remove_file 'public/index.html'
gsub_file 'config/routes.rb', /get \"home\/index\"/, 'root :to => "home#index"'

rake 'db:create'

@project_name = ask 'How call this project?'

generate "web_app_theme:theme --engine=haml --app-name=\"#{@project_name}\""
remove_file 'app/views/layouts/application.html.erb'
gsub_file 'app/views/layouts/application.html.haml', /= javascript_include_tag :defaults, :cache => true/, '= javascript_include_tag :defaults'

generate "web_app_theme:themed home --themed-type=text --engine=haml"

run 'mv app/views/home/show.html.haml app/views/home/index.html.haml'

generate 'web_app_theme:assets'
generate 'devise:install'
generate 'devise user'

application do <<-RUBY
config.to_prepare do
  Devise::SessionsController.layout "sign"
  Devise::RegistrationsController.layout "sign"
end
RUBY
end

generate "web_app_theme:theme sign --layout-type=sign --engine=haml --app-name=\"#{@project_filename}\""

generate 'devise:views'

rake 'db:migrate'

remove_file 'app/views/devise/sessions/new.html.erb'
create_file 'app/views/devise/sessions/new.html.haml' do <<-RUBY
%h1 #{@project_name}
.block#block-login
  %h2 Sign in
  .content.login
    .flash
      - flash.each do |type, message|
        %div{ :class => "message \#{type}" }
          %p= message
    = form_for(resource, :as => resource_name, :url => session_path(resource_name), :html => { :class => "form login" }) do |f|
      .group.wat-cf
        .left= f.label :email, :class => "label right"
        .right= f.text_field :email, :class => "text_field"
      .group.wat-cf
        .left= f.label :password, :class => "label right"
        .right= f.password_field :password, :class => "text_field"
      - if devise_mapping.rememberable?
        .group.wat-cf
          .right
            = f.check_box :remember_me, :class => "checkbox"
            = f.label :remember_me, :class => "checkbox"
      .group.wat-cf
        .right
          %button.button{ :type => "submit" }
            = image_tag "web-app-theme/icons/key.png"
            Login
    = render :partial => "devise/shared/links"
RUBY
end

remove_file 'app/views/devise/registrations/new.html.erb'
create_file 'app/views/devise/registrations/new.html.erb' do <<-RUBY
%h1 #{@project_name}
.block#block-signup
  %h2 Sign up
  .content
    .flash
      - flash.each do |type, message|
        %div{ :class => "message \#{type}" }
          %p= message
    = form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => { :class => "form" }) do |f|
      .group
        = f.label :email, :class => "label"
        = f.text_field :email, :class => "text_field"
        %span.description Ex. test@example.com
      .group
        = f.label :password, :class => "label"
        = f.password_field :password, :class => "text_field"
        %span.description must be at least 6 characters
      .group
        = f.label :password_confirmation, "Re-enter Password", :class => "label"
        = f.password_field :password_confirmation, :class => "text_field"
      .group.navform.wat-cf
        %button.button{ :type => "submit" }
          = image_tag "web-app-theme/icons/tick.png"
          Sign up 
    = render :partial => "devise/shared/links"
RUBY
end


git :init
git :add => '.'
git :commit => "-m Commit inicial"

usage:

rails new project_name -t standard_template.rb