require 'optparse' require 'rails/test_help' require 'rails/performance_test_help' require 'active_support/testing/performance' def options options = {} defaults = ActiveSupport::Testing::Performance::DEFAULTS OptionParser.new do |opt| opt.banner = "Usage: rails profiler 'Ruby.code' 'Ruby.more_code' ... [OPTS]" opt.on('-r', '--runs N', Numeric, 'Number of runs.', "Default: #{defaults[:runs]}") { |r| options[:runs] = r } opt.on('-o', '--output PATH', String, 'Directory to use when writing the results.', "Default: #{defaults[:output]}") { |o| options[:output] = o } opt.on('-m', '--metrics a,b,c', Array, 'Metrics to use.', "Default: #{defaults[:metrics].join(",")}") { |m| options[:metrics] = m.map(&:to_sym) } opt.on('-f', '--formats x,y,z', Array, 'Formats to output to.', "Default: #{defaults[:formats].join(",")}") { |m| options[:formats] = m.map(&:to_sym) } opt.parse!(ARGV) end options end class ProfilerTest < ActionDispatch::PerformanceTest #:nodoc: self.profile_options = options ARGV.each do |expression| eval <<-RUBY def test_#{expression.parameterize('_')} #{expression} end RUBY end end