class Rack::RubyProf

Public Class Methods

new(app, options = {}) click to toggle source
# File lib/ruby-prof/rack.rb, line 5
def initialize(app, options = {})
  @app = app

  options[:min_percent] ||= 1

  options[:path] ||= Dir.tmpdir
  FileUtils.mkdir_p(options[:path])

  @skip_paths = options[:skip_paths] || [%r{^/assets}, %r{\.(css|js|png|jpeg|jpg|gif)$}]
  @only_paths = options[:only_paths]

  @max_requests = options[:max_requests]

  @options = options
end

Public Instance Methods

call(env) click to toggle source
# File lib/ruby-prof/rack.rb, line 21
def call(env)
  request = Rack::Request.new(env)

  if should_profile?(request.path)
    profiler.resume
    begin
      result = @app.call(env)
    ensure
      profiler.pause
    end

    if profiler.max_requests_reached?
      prefix = if aggregate_requests?
          nil
        else
          request.path.gsub('/', '-')[1..-1]
        end

      profiler.print!(prefix)
      delete_profiler!
    end

    result
  else
    @app.call(env)
  end
end

Private Instance Methods

aggregate_requests?() click to toggle source
# File lib/ruby-prof/rack.rb, line 159
def aggregate_requests?
  !@max_requests.nil?
end
delete_profiler!() click to toggle source
# File lib/ruby-prof/rack.rb, line 150
def delete_profiler!
  if aggregate_requests?
    @@_shared_profiler.print! if @@_shared_profiler
    @@_shared_profiler = nil
  else
    @_profiler = nil
  end
end
paths_match?(path, paths) click to toggle source
# File lib/ruby-prof/rack.rb, line 169
def paths_match?(path, paths)
  paths.any? { |skip_path| skip_path =~ path }
end
profiler() click to toggle source
# File lib/ruby-prof/rack.rb, line 142
def profiler
  if aggregate_requests?
    @@_shared_profiler ||= RackProfiler.new(@options)
  else
    @_profiler ||= RackProfiler.new(@options)
  end
end
should_profile?(path) click to toggle source
# File lib/ruby-prof/rack.rb, line 163
def should_profile?(path)
  return false if paths_match?(path, @skip_paths)

  @only_paths ? paths_match?(path, @only_paths) : true
end