Class: Rack::RubyProf

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-prof/rack.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, path: Dir.tmpdir, printers: nil, skip_paths: nil, only_paths: nil, merge_fibers: false, measure_mode: ::RubyProf::WALL_TIME, track_allocations: false, exclude_common: false, ignore_existing_threads: false, request_thread_only: false, min_percent: 1, sort_method: :total_time) ⇒ RubyProf

Returns a new instance of RubyProf.



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# File 'lib/ruby-prof/rack.rb', line 6

def initialize(app, path: Dir.tmpdir, printers: nil, skip_paths: nil,
               only_paths: nil, merge_fibers: false,
               measure_mode: ::RubyProf::WALL_TIME, track_allocations: false,
               exclude_common: false, ignore_existing_threads: false,
               request_thread_only: false, min_percent: 1,
               sort_method: :total_time)
  @app = app

  @tmpdir = path.to_s
  FileUtils.mkdir_p(@tmpdir)

  @printer_klasses = printers || {::RubyProf::FlatPrinter => 'flat.txt',
                                  ::RubyProf::GraphPrinter => 'graph.txt',
                                  ::RubyProf::GraphHtmlPrinter => 'graph.html',
                                  ::RubyProf::CallStackPrinter => 'call_stack.html'}

  @skip_paths = skip_paths || [%r{^/assets}, %r{\.(css|js|png|jpeg|jpg|gif)$}]
  @only_paths = only_paths
  @merge_fibers = merge_fibers
  @measure_mode = measure_mode
  @track_allocations = track_allocations
  @exclude_common = exclude_common
  @ignore_existing_threads = ignore_existing_threads
  @request_thread_only = request_thread_only
  @min_percent = min_percent
  @sort_method = sort_method
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/ruby-prof/rack.rb', line 34

def call(env)
  request = Rack::Request.new(env)

  if should_profile?(request.path)
    begin
      result = nil
      profile = ::RubyProf::Profile.profile(**profiling_options) do
        result = @app.call(env)
      end

      if @merge_fibers
        profile.merge!
      end


      path = request.path.gsub('/', '-')
      path.slice!(0)

      print(profile, path)
      result
    end
  else
    @app.call(env)
  end
end