Complexity

Transcript

1. @jcinnamond Complexity

2. As a business

3. As a business I want A/B testing on the 


   homepage

4. As a business I want A/B testing on the 


   homepage Because business

5. GREAT!

6. There’s a GEM
 for that GREAT!

7. source 'https://rubygems.org' gem 'rails', '4.2.5.2' group :development, :test do gem

   'byebug' end

8. source 'https://rubygems.org' gem 'rails', '4.2.5.2' group :development, :test do gem

   'byebug' end gem 'ab-testing-because-business'

9. $ bundle install Using rake 10.5.0 Using rails 4.2.5.2 Installing

   ab-testing-because-business Using node 6.0.1 Using vb.net 14.0 Using microsoft-iis 5.1

10. rails g ab-testing:init invoke ab_test_all_the_things modify app/views/homepage.html.erb convert_all_the_users $

11. rails g ab-testing:init invoke ab_test_all_the_things modify app/views/homepage.html.erb convert_all_the_users $ :shipit:

12. Everyone is happy

13. Everyone is happy Everything is EASY

14. As a user

15. As a user I want some copy
 changed

16. As a user I want some copy
 changed Because reasons

17. GREAT!

18. There’s a GEM
 for that GREAT!

19. source 'https://rubygems.org' gem 'rails', '4.2.5.2' gem 'ab-testing-because-business' group :development, :test

    do gem 'byebug' end

20. source 'https://rubygems.org' gem 'rails', '4.2.5.2' gem 'ab-testing-because-business' group :development, :test

    do gem 'byebug' end gem 'awesome-copy-change'

21. $ bundle install Using rake 10.5.0 Using peoples-front-of-judea 1.4.3 Using

    judean-peoples-front 2.1.0 Using judean-popular-peoples-front 0.9 Using ab-testing-because-business 1.0 Installing awesome-copy-change 0.1 Using romanes-eunt-domus 1.0.0-beta3 A møøse once bit my sister…

22. AwesomeCopyChange.config do |config| change 'romanus eunt domus', to: 'romani ite

    domum' end config/initializers/awesome_copy_change.rb

23. AwesomeCopyChange.config do |config| change 'romanus eunt domus', to: 'romani ite

    domum' end config/initializers/awesome_copy_change.rb :shipit:

24. Everyone is happy

25. Everyone is happy Everything is EASY

26. 47% of rails development is installing gems* * I totes

    just made this up

27. $ grep -c '^\s*gem' Gemfile 40 $ bundle list |

    grep -c '\*' 122

28. $ bundle install --path=vendor/bundle ...

29. $ bundle install --path=vendor/bundle ... $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb

    |

30. $ bundle install --path=vendor/bundle ... $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb

    | egrep -v 'spec|test' |

31. $ bundle install --path=vendor/bundle ... $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb

    | egrep -v 'spec|test' | wc -l

32. $ bundle install --path=vendor/bundle ... $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb

    | egrep -v 'spec|test' | wc -l 4234

33. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

34. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat |

35. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep '^\s*def\b' |

36. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep '^\s*def\b' | wc -l

37. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep '^\s*def\b' | wc -l 35454 (methods)

38. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep '^\s*def method_missing\b' | wc -l 35454 (methods) 93 (method_missing)

39. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep '^\bdefine_method\b' | wc -l 35454 (methods) 93 (method_missing) 205 (define_method)

40. ¯\_(ϑ)_/¯

41. $ find app -name '*.rb' | xargs cat | grep

    -v '^\s*#' | grep -v '^\s*$' | wc -l 1007

42. $ find vendor/bundle/ruby/2.3.0/gems -name \*.rb | egrep -v 'spec|test' |

    xargs cat | grep -v '^\s*#' | grep -v '^\s*$' | wc -l 377195

43. 100% Our code Other people's code

44. 0 100000 200000 300000 400000 Code that's been through our

    PR process Code that hasn't

45. Projects get COMPLEX

46. Rails projects get COMPLEXERERER

47. GEMS
 aren't the problem

48. Solve problems by DOING STUFF

49. Solve problems by DOING STUFF Adding a gem

50. Solve problems by DOING STUFF Adding a gem Running scripts

51. Solve problems by DOING STUFF Adding a gem Running scripts

    Writing code

52. Solve problems by DOING STUFF Adding a gem Running scripts

    Writing code ADDING COMPLEXITY

53. COMPLEXITY KILLS PROJECTS

54. Avoid complexity by

55. Avoid complexity by DOING LESS STUFF

56. Avoid complexity by DOING LESS STUFF THINKING MORE

57. Avoid complexity by DOING LESS STUFF THINKING MORE CARING MORE

58. This takes time

59. Nobody is happy

60. Nobody is happy Nothing is EASY

61. AVOIDING COMPLEXITY isn't always
 the right thing

62. But it's about balance

63. COMPLEXITY KILLS PROJECTS

64. COMPLEXITY KILLS PROJECTS nobody likes a dead project

65. Great! 
 There's a 
 gem for this

66. I can bash 
 out out 
 some code

67. maybe don't think that I can bash 
 out out

    
 some code

68. try thinking 
 about the 
 problem I can bash

    
 out out 
 some code

69. try to find
 the SIMPLE
 solution I can bash 


    out out 
 some code

70. IN THE SHORT TERM nobody cares

71. IN THE LONG TERM your project depends on it

72. Thank you Complexity @jcinnamond Bath Ruby 2016