Guardfile

guard 'rspec', :cli => '--color --format Fuubar', :all_on_start => false, :all_after_pass => false do
  watch('spec/spec_helper.rb')                        { "spec" }
  watch('config/routes.rb')                           { "spec/controllers" }
  watch('app/controllers/application_controller.rb')  { "spec/controllers" }
  watch(%r{^spec/(.+)_spec\.rb$})                     { |m| "spec/#{m[1]}_spec.rb"}
  watch(%r{^app/(.+)_decorator\.rb$})                 { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/(.*)(\.erb|\.haml)$})                 { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
  watch(%r{^lib/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
end