How can I give Sinatra a catchall, default route?

Question

For a small developer documentation app, I'd like to set up a Sinatra app to just serve HAML files. After routes for CSS files and images, I want a route that tries to load a HAML file for any path you request.

For example:

• /index loads views/index.haml, if it exists
• /this/page/might/exist loads views/this/page/might/exist.haml, if it exists

How would I specify this route?

Answer 1

Looks like this will do it:

get '/*' do
  viewname = params[:splat].first   # eg "some/path/here"

  if File.exist?("views/#{viewname}.haml")
    haml :"#{viewname}"

  else
    "Nopers, I can't find it."
  end
end