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The Joys and Pains of Working with an Old Codebase

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Avatar for Gordon Diggs Gordon Diggs
May 17, 2014
Programming
2.4k
1

The Joys and Pains of Working with an Old Codebase

Avatar for Gordon Diggs

Gordon Diggs

May 17, 2014

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Transcript

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

    Gordon Diggs BACON 2014

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

    Gordon Diggs BACON 2014

  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 Baker / Cook #devslovebaking

  8. @gordondiggs New York City Resident

  9. None

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

    is indispensable." - Dwight D. Eisenhower

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

    in 2008 60 contributors ~128k lines of application code

  12. #TODO:  redo  this

  13. How to add features

  14. 1. Plan out the feature

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

    planning

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

    planning ! Let your unique development concerns be known

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

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

  18. 2. Do a technical kick-off

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

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

  20. 3. Be prepared to do something else entirely

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

    exist

  22. 5. Document Things

  23. Build awesome things

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

     need   this     def  update_attributes_is_broken_with_nested_attribute_validations_in_rails      ...   end  

  25. How to execute refactors

  26. Treat them like features

  27. 1. Plan out the refactor

  28. 2. Do a technical kick-off

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

    exist

  30. 4. Document Things

  31. Build awesome things

  32. Tools we use (and love)

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

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

  42. The Joys

  43. Get to fix lots of bugs

  44. Get to fix lots of interesting bugs

  45. Give time to fix the bugs

  46. Treat your codebase like a campsite

  47. Build awesome things

  48. Thank you! @gordondiggs Special Thanks to: Mike Bernstein, Michael Hansen,

    Solomon Kahn, Alan Macdougall, Aaron Quint, Todd Mazierski, Justin Searls, Stephanie Shih, Alyssa Stein