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The Joys and Pains of Working With an Old Codebase

Avatar for Gordon Diggs Gordon Diggs
June 10, 2014
Programming
0
150

The Joys and Pains of Working With an Old Codebase

As presented at Boston.rb on 6.10.14

Avatar for Gordon Diggs

Gordon Diggs

June 10, 2014
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Transcript

  1. The Joys and Pains of Working With An Old Codebase

    Gordon Diggs Boston.rb 140610

  2. The Joys and Pains of Working With An Old Codebase

    Gordon Diggs Boston.rb 140610

  3. if  total_guests  ==  150  &&  total_guests  +  1  ==  151

         ...   end  

  4. Outline About Me Introduction to our codebase Adding features Executing

    refactors Tools we use The joys

  5. @gordondiggs Record Collector

  6. @gordondiggs Baker / Cook

  7. @gordondiggs New York City Resident

  8. None

  9. "I have always found that plans are useless but planning

    is indispensable." - Dwight D. Eisenhower

  10. The Codebase Ruby 2.1 Rails 2.3 Postgres, Redis, Memcached Started

    in 2008 60 contributors ~128k lines of application code

  11. #TODO:  redo  this

  12. How to add features

  13. 1. Plan out the feature

  14. 1. Plan out the feature Have developers involved in the

    planning

  15. 1. Plan out the feature Have developers involved in the

    planning ! Let your unique development concerns be known

  16. 1. Plan out the feature Have developers involved in the

    planning ! Let your unique development concerns be known ! Make it a conversation

  17. 2. Do a technical kick-off

  18. 2. Do a technical kick-off What new data models do

    we need? ! What needs to be refactored? ! What might the challenges be?

  19. 3. Be prepared to do something else entirely

  20. 4. Write lots of tests, especially for things that already

    exist

  21. 5. Document Things

  22. Build awesome things

  23. #  because  the  "update_attributes!"  does  not  behave  as  expected,  we

     need   this     def  update_attributes_is_broken_with_nested_attribute_validations_in_rails      ...   end  

  24. How to execute refactors

  25. Treat them like features

  26. 1. Plan out the refactor

  27. 2. Do a technical kick-off

  28. 3. Write lots of tests, especially for things that already

    exist

  29. 4. Document Things

  30. Build awesome things

  31. Tools we use (and love)

  32. None
  33. None
  34. None
  35. None
  36. None
  37. None
  38. None
  39. None

  40. Peter Welch - Programming Sucks stilldrinking.org/programming-sucks

  41. The Joys

  42. Get to fix lots of bugs

  43. Get to fix lots of interesting bugs

  44. Give time to fix the bugs

  45. Treat your codebase like a campsite

  46. Build awesome things

  47. Thank you! @gordondiggs ! bit.ly/joys_and_pains_boston Special Thanks to: Mark Bates,

    Mike Bernstein, Michael Hansen, Solomon Kahn, Alan Macdougall, Aaron Quint, Todd Mazierski, Justin Searls, Stephanie Shih, Alyssa Stein