ruby libs have *got* to stop doing this...

polluted.rb

libs = ARGV.size == 0 ? all_gems : ARGV

list = 
  libs.
    forkify(16){|lib| puts "#{ lib }..."; [lib, polluted_by(lib)]}.
      sort_by{|pair| pair.last}


list.each do |lib, polluted|
  puts "polluted_by('#{ lib }') #=> #{ polluted }"
end





BEGIN {

  require 'forkify'

  STDOUT.sync = true

  def all_gems
    `gem list --local`.split(/\n/).map{|line| line.scan(/[^\s]+/).first}.uniq - stupidly_loading_gems
  end

  def stupidly_loading_gems
    %w[
    ]
  end

  def polluted_by(lib)
    before = Methods.summary

    required = false

    open('/dev/null', 'w+') do |fd|
      stderr = STDERR.dup
      #STDERR.reopen(fd)

      begin
        libnames = [lib, lib.gsub('-', '_'), lib.gsub('-', '/')]

        loaded = false

        libnames.each do |libname|
          begin
            require(libname)
            break(loaded = true)
          rescue Object
            next
          end
        end

        return -1 unless loaded
      ensure
        STDERR.reopen(stderr)
      end
    end

    after = Methods.summary

    before.polluted_by(after)
  end

  class Methods
    attr_accessor :klass
    attr_accessor :class_methods
    attr_accessor :instance_methods

    def initialize(klass)
      @klass = klass
      @class_methods = klass.methods
      @instance_methods = klass.instance_methods(false)
    end

    def polluted_by(other)
      (other.class_methods - class_methods).size + (other.instance_methods - instance_methods).size
    end

    class Summary < ::Hash
      def polluted_by(other)
        total = 0

        each do |klass, methods|
          if other.has_key?(klass)
            total += methods.polluted_by(other[klass])
          end
        end

        total
      end
    end

    def Methods.summary
      summary = Summary.new
      ObjectSpace.each_object(Class){|klass| summary[klass] = Methods.new(klass)}
      summary
    end
  end

}

polluted.rb.txt

polluted_by('net-http-digest_auth') #=> 0
polluted_by('curb') #=> 0
polluted_by('xpath') #=> 0
polluted_by('mysql') #=> 0
polluted_by('wrap') #=> 0
polluted_by('database_cleaner') #=> 0
polluted_by('will_paginate') #=> 0
polluted_by('debugger-linecache') #=> 0
polluted_by('debugger-ruby_core_source') #=> 0
polluted_by('mustache') #=> 0
polluted_by('watirgrid') #=> 0
polluted_by('diff-lcs') #=> 0
polluted_by('warden') #=> 0
polluted_by('url_mount') #=> 0
polluted_by('ejs') #=> 0
polluted_by('multipart-post') #=> 0
polluted_by('erubis') #=> 0
polluted_by('multi_json') #=> 0
polluted_by('nokogiri') #=> 0
polluted_by('capybara') #=> 0
polluted_by('unf_ext') #=> 0
polluted_by('open4') #=> 0
polluted_by('tilt') #=> 0
polluted_by('orm_adapter') #=> 0
polluted_by('cancan') #=> 0
polluted_by('pg') #=> 0
polluted_by('fastthread') #=> 0
polluted_by('thor') #=> 0
polluted_by('ffi') #=> 0
polluted_by('temple') #=> 0
polluted_by('flock') #=> 0
polluted_by('tagz') #=> 0
polluted_by('forkify') #=> 0
polluted_by('formatador') #=> 0
polluted_by('columnize') #=> 0
polluted_by('syntax') #=> 0
polluted_by('fssm') #=> 0
polluted_by('subexec') #=> 0
polluted_by('rack') #=> 0
polluted_by('grb') #=> 0
polluted_by('spork') #=> 0
polluted_by('slop') #=> 0
polluted_by('slim') #=> 0
polluted_by('rack-cache') #=> 0
polluted_by('shoulda-matchers') #=> 0
polluted_by('mixlib-cli') #=> 0
polluted_by('hashie') #=> 0
polluted_by('rack-protection') #=> 0
polluted_by('mime-types') #=> 0
polluted_by('hike') #=> 0
polluted_by('hiredis') #=> 0
polluted_by('http_parser.rb') #=> 0
polluted_by('rails_current') #=> 0
polluted_by('ruby_gntp') #=> 0
polluted_by('i18n') #=> 0
polluted_by('ruby_cli') #=> 0
polluted_by('journey') #=> 0
polluted_by('rails_default_url_options') #=> 0
polluted_by('ruby-hmac') #=> 0
polluted_by('middleman-livereload') #=> 0
polluted_by('rspec-mocks') #=> 0
polluted_by('rmagick') #=> 0
polluted_by('libv8') #=> 0
polluted_by('libwebsocket') #=> 0
polluted_by('linguistics') #=> 0
polluted_by('listen') #=> 0
polluted_by('rails_helper') #=> 0
polluted_by('coderay') #=> 0
polluted_by('benchmark-ips') #=> 0
polluted_by('bigdecimal') #=> 0
polluted_by('redis-namespace') #=> 0
polluted_by('redis') #=> 0
polluted_by('redcarpet') #=> 0
polluted_by('rdoc') #=> 0
polluted_by('map') #=> 0
polluted_by('rbtree') #=> 0
polluted_by('rb-fsevent') #=> 0
polluted_by('childprocess') #=> 0
polluted_by('bson') #=> 0
polluted_by('rails_nav') #=> 0
polluted_by('builder') #=> 0
polluted_by('method_source') #=> 0
polluted_by('chunky_png') #=> 1
polluted_by('albino') #=> 1
polluted_by('webrobots') #=> 1
polluted_by('http_router') #=> 1
polluted_by('sanitize') #=> 1
polluted_by('net-http-persistent') #=> 1
polluted_by('faraday') #=> 1
polluted_by('shoulda') #=> 1
polluted_by('excon') #=> 1
polluted_by('simple_oauth') #=> 1
polluted_by('faraday_middleware') #=> 1
polluted_by('posix-spawn') #=> 1
polluted_by('shoulda-context') #=> 1
polluted_by('arrayfields') #=> 2
polluted_by('mini_magick') #=> 2
polluted_by('daemon_controller') #=> 2
polluted_by('fastercsv') #=> 2
polluted_by('unicode-display_width') #=> 3
polluted_by('eventmachine') #=> 3
polluted_by('rack-ssl') #=> 3
polluted_by('em-websocket') #=> 3
polluted_by('narray') #=> 3
polluted_by('babosa') #=> 3
polluted_by('rest-client') #=> 3
polluted_by('ruby-prof') #=> 3
polluted_by('launchy') #=> 4
polluted_by('ruby_ngrams') #=> 4
polluted_by('domain_name') #=> 4
polluted_by('unf') #=> 4
polluted_by('fukung') #=> 4
polluted_by('txt2img') #=> 5
polluted_by('hashr') #=> 5
polluted_by('io-console') #=> 23
polluted_by('arel') #=> 102
polluted_by('mysql2') #=> 102
polluted_by('logrotate') #=> 102
polluted_by('compass') #=> 103
polluted_by('highline') #=> 103
polluted_by('compass-rails') #=> 103
polluted_by('net-ssh-gateway') #=> 104
polluted_by('net-sftp') #=> 104
polluted_by('net-ssh') #=> 104
polluted_by('selenium-webdriver') #=> 104
polluted_by('net-scp') #=> 107
polluted_by('capistrano-file_db') #=> 108
polluted_by('capistrano') #=> 108
polluted_by('daemons') #=> 115
polluted_by('tzinfo') #=> 115
polluted_by('sqlite3') #=> 116
polluted_by('uuidtools') #=> 116
polluted_by('chronic') #=> 117
polluted_by('coerce') #=> 117
polluted_by('rack-test') #=> 118
polluted_by('thin') #=> 119
polluted_by('sinatra') #=> 119
polluted_by('ansi') #=> 119
polluted_by('amalgalite') #=> 120
polluted_by('mechanize') #=> 134
polluted_by('polyglot') #=> 276
polluted_by('metaclass') #=> 276
polluted_by('haml') #=> 278
polluted_by('uuid') #=> 279
polluted_by('systemu') #=> 279
polluted_by('threadify') #=> 279
polluted_by('macaddr') #=> 279
polluted_by('treetop') #=> 282
polluted_by('mongo') #=> 283
polluted_by('uglifier') #=> 283
polluted_by('coffee-script') #=> 283
polluted_by('execjs') #=> 283
polluted_by('moped') #=> 290
polluted_by('sass') #=> 380
polluted_by('ruby-growl') #=> 395
polluted_by('locomotive_liquid') #=> 402
polluted_by('pygments.rb') #=> 551
polluted_by('rubypython') #=> 551
polluted_by('blankslate') #=> 551
polluted_by('friendly_id') #=> 552
polluted_by('w3c_validators') #=> 554
polluted_by('json') #=> 554
polluted_by('rspec-expectations') #=> 555
polluted_by('dragonfly') #=> 556
polluted_by('rake') #=> 563
polluted_by('pry') #=> 582
polluted_by('pry-nav') #=> 582
polluted_by('mongoid-sequence') #=> 832
polluted_by('awesome_print') #=> 860
polluted_by('debugger') #=> 1387
polluted_by('maruku') #=> 1401
polluted_by('fattr') #=> 1662
polluted_by('guard-livereload') #=> 1762
polluted_by('guard') #=> 1762
polluted_by('guard-spork') #=> 1762
polluted_by('guard-rspec') #=> 1762
polluted_by('RedCloth') #=> 1762
polluted_by('unidecoder') #=> 1763
polluted_by('sprockets') #=> 1765
polluted_by('multi_xml') #=> 1775
polluted_by('httparty') #=> 1776
polluted_by('fog') #=> 1776
polluted_by('bundler') #=> 1783
polluted_by('main') #=> 1783
polluted_by('rspec-core') #=> 1936
polluted_by('faker') #=> 2042
polluted_by('mail') #=> 2064
polluted_by('factory_girl') #=> 2244
polluted_by('rubyforge') #=> 2333
polluted_by('rspec') #=> 2490
polluted_by('carrierwave') #=> 2502
polluted_by('redis-persistence') #=> 2876
polluted_by('grid') #=> 2901
polluted_by('origin') #=> 3179
polluted_by('rego') #=> 3443
polluted_by('aws-s3') #=> 3453
polluted_by('padrino-core') #=> 3758
polluted_by('routing-filter') #=> 4224
polluted_by('coffee-rails') #=> 5389
polluted_by('mocha') #=> 5627
polluted_by('middleman-blog') #=> 7412
polluted_by('middleman-core') #=> 7412
polluted_by('padrino-helpers') #=> 8555
polluted_by('turn') #=> 9110
polluted_by('rails-backbone') #=> 9289
polluted_by('rails-i18n') #=> 9289
polluted_by('seo_meta') #=> 9289
polluted_by('rails') #=> 9289
polluted_by('flash_cookie_session') #=> 9289
polluted_by('factory_girl_rails') #=> 10398
polluted_by('middleman') #=> 11376
polluted_by('middleman-sprockets') #=> 11376
polluted_by('middleman-more') #=> 11376
polluted_by('sass-rails') #=> 13315
polluted_by('devise') #=> 14956
polluted_by('kaminari') #=> 15248
polluted_by('globalize3') #=> 16173
polluted_by('acts_as_indexed') #=> 16173
polluted_by('whenever') #=> 19247
polluted_by('tinder') #=> 19248
polluted_by('redmon') #=> 19530
polluted_by('refinerycms-core') #=> 20593
polluted_by('refinerycms-dashboard') #=> 20593
polluted_by('refinerycms-codemirror') #=> 20593
polluted_by('refinerycms-copywriting') #=> 20593
polluted_by('refinerycms-i18n') #=> 20593
polluted_by('refinerycms-page-images') #=> 20633
polluted_by('refinerycms-testing') #=> 20869
polluted_by('refinerycms-videojs') #=> 20872
polluted_by('refinerycms-images') #=> 20872
polluted_by('refinerycms-resources') #=> 20872
polluted_by('refinerycms-pages') #=> 21147
polluted_by('refinerycms-authentication') #=> 21162
polluted_by('refinerycms') #=> 21443
polluted_by('custom_fields') #=> 21756
polluted_by('carrierwave-mongoid') #=> 21756
polluted_by('mongoid-bolt') #=> 27588
polluted_by('mongoid-lock') #=> 27588
polluted_by('mongoid') #=> 27588
polluted_by('mongoid-grid_fs') #=> 27588