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#!/usr/bin/env ruby
# frozen_string_literal: true
unless File.respond_to? :realpath
class File #:nodoc:
def self.realpath path
return realpath(File.readlink(path)) if symlink?(path)
path
end
end
end
lib = File.expand_path(File.dirname(File.realpath(__FILE__)) + '/../lib')
$: << lib
require File.join(lib, 'derailed_benchmarks.rb')
Bundler.setup
require 'thor'
class DerailedBenchmarkCLI < Thor
desc "exec", "executes given derailed benchmark"
def exec(task = nil)
setup_bundler!
require 'derailed_benchmarks'
require 'rake'
Rake::TaskManager.record_task_metadata = true
require 'derailed_benchmarks/tasks'
perf_rakefile = File.expand_path(".", "perf.rake")
load perf_rakefile if File.exist?(perf_rakefile)
if task.nil? || task == "--help"
Rake.application.tasks.map do |task, n|
next unless task.comment
puts " $ derailed exec #{task.name} # #{task.comment}"
end
else
task = "perf:#{task}" unless Rake::Task.task_defined?(task)
Rake::Task[task].invoke
end
end
desc "bundle:objects", "measures objects created by gems"
define_method(:"bundle:objects") do |env = "production"|
setup_bundler!
env = [:default] + env.split(",")
puts "Measuring objects created by gems in groups #{ env.inspect }"
require 'memory_profiler'
report = MemoryProfiler.report do
Bundler.require(*env)
end
report.pretty_print
end
map :"bundler:objects" => :"bundle:objects"
desc "bundle:mem", "measures memory used by gems at boot time"
define_method(:"bundle:mem") do |env = "production"|
env = [:default] + env.split(",")
require 'get_process_mem'
mem = GetProcessMem.new
require 'derailed_benchmarks/core_ext/kernel_require'
before = mem.mb
setup_bundler!
Bundler.require(*env)
after = mem.mb
TOP_REQUIRE.print_sorted_children
end
map :"bundler:mem" => :"bundle:mem"
private
def setup_bundler!
ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
require 'bundler/setup'
begin
if ENV["DERAILED_SKIP_ACTIVE_RECORD"]
require "action_controller/railtie"
require "action_mailer/railtie"
require "sprockets/railtie"
require "rails/test_unit/railtie"
else
require 'rails/all'
end
rescue LoadError
end
end
end
DerailedBenchmarkCLI.start(ARGV)
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