Rails 3 Template

template.rb

#!/usr/bin/env ruby

require('open-uri')

# Add new gems.
gem("haml-rails")
gem("thin-rails")
gem("bootstrap-sass")
gem("app-config", :git => "git://github.com/newsinternational/app-config.git")

# No coffeescript.
comment_lines("Gemfile", /coffee-rails/)

# Fix for foreman in development.
insert_into_file("config/environments/development.rb", "$stdout.sync = true", :after => "\nend\n")
  
# Convert created HTML layout to HAML.
remove_file("app/views/layouts/application.html.erb")
create_file("app/views/layouts/application.html.haml") do
  <<EOF
!!!
%html
  %head
    %title My Rails 3 Application.
    = stylesheet_link_tag    "application", :media => "all"
    = javascript_include_tag "application"
    = csrf_meta_tags
  %body
    = yield
EOF
end

# Add a CSS file to import bootstrap
create_file("app/assets/stylesheets/root.css.sass") do
  '@import "bootstrap"'
end

# Add a Procfile for foreman
create_file("Procfile") do
  "web: script/rails server -p $PORT"
end


# Add an empty config.yml file for app-config
create_file("config/config.yml") do
  <<EOF
defaults: &defaults

development:
  <<: *defaults

production:
  <<: *defaults
EOF
end

# Add Underscore as a Javascript asset.
vendor("assets/javascripts/underscore.js") do
  open('http://underscorejs.org/underscore.js').read
end
insert_into_file("app/assets/javascripts/application.js", "//= require underscore\n", :after => "//= require jquery_ujs\n")

# Remove the standard public/index.html.
remove_file("public/index.html")
# Who thought this was a good idea anyway?
remove_file("app/assets/images/rails.png")

# Finally: set up Git repo.
git :init
git :add => "."
git :commit => "-m 'Initial commit'"

Use it like:

rails new my-super-cool-app -m https://raw.github.com/gist/3911374/template.rb