class Rack::RubyProf

   # File lib/ruby-prof/rack.rb
 6 def initialize(app, options = {})
 7   @app = app
 8   @options = options
 9   @options[:min_percent] ||= 1
10 
11   @tmpdir = options[:path] || Dir.tmpdir
12   FileUtils.mkdir_p(@tmpdir)
13 
14   @printer_klasses = @options[:printers]  || {::RubyProf::FlatPrinter => 'flat.txt',
15                                               ::RubyProf::GraphPrinter => 'graph.txt',
16                                               ::RubyProf::GraphHtmlPrinter => 'graph.html',
17                                               ::RubyProf::CallStackPrinter => 'call_stack.html'}
18 
19   @skip_paths = options[:skip_paths] || [%r{^/assets}, %r{\.(css|js|png|jpeg|jpg|gif)$}]
20   @only_paths = options[:only_paths]
21 end

   # File lib/ruby-prof/rack.rb
23 def call(env)
24   request = Rack::Request.new(env)
25 
26   if should_profile?(request.path)
27     begin
28       result = nil
29       data = ::RubyProf::Profile.profile(profiling_options) do
30         result = @app.call(env)
31       end
32 
33       path = request.path.gsub('/', '-')
34       path.slice!(0)
35 
36       print(data, path)
37       result
38     end
39   else
40     @app.call(env)
41   end
42 end