"Ruby Smells"

on YouTube ↗43m

" summary

Ruby projects accumulate concrete, fixable smells: examples include duplicate method call (same expensive API hit repeated), data clump (latitude/longitude passed everywhere), repeater conditional (location checks duplicated) and feature envy or attribute smell. Static tools used are Reek (and RuboCop) to locate smells; Reek finds hundreds of warnings, the Reek codebase shows “five screens” of issues and a team fixes a third in a month. Advice includes configurable thresholds, whitelist generation (reek --to-do) and pragmatic, case-by-case refactoring with tests before aggressive rewrites.

AI-written summary · about

" chapters (48)

1. 0:00Intro
2. 0:38Minor things I dont like
3. 1:23Im not saying Ruby smells
4. 4:51Its not necessarily a bad thing
5. 5:22Its nice sometimes
6. 6:12Code examples
7. 7:00Ruby Smells
8. 9:33Metric
9. 10:56Separation Matrix
10. 11:36Refactoring
11. 13:07DataClamp
12. 15:00Sustain
13. 15:10Location
14. 15:29Repeater conditional
15. 16:32Ruby predicate
16. 17:09Ruby boolean parameter
17. 17:24Code refactoring
18. 18:37Utility function
19. 20:05Attendees
20. 20:53Initializer
21. 21:50Partition
22. 22:33FeatureEnv
23. 22:43BusinessProcess
24. 23:23Excited predicate
25. 23:58Hub of programming
26. 24:25Attribute Smell
27. 25:28Dont Ask
28. 25:45immutable objects
29. 26:24instance variables
30. 27:02burn your gutters
31. 27:23realworld examples
32. 27:41eigenvalue
33. 28:00testkumi
34. 29:07code smell
35. 30:01cosmetic code smell
36. 30:25pragmatic code smell
37. 31:07how to find code smells
38. 31:24Robocop for architecture
39. 33:35Comments
40. 34:12Configuration
41. 36:50Code Comments
42. 37:17Reconfiguring Parameters
43. 38:13Hope
44. 38:58Cowboy
45. 39:42Can I do this more
46. 40:05Cold Climate
47. 41:52Guidelines
48. 42:02Thank you

" related talks

• 38mGet a Whiff of ThisSandi Metz · RailsConf 2016
• 39mSteal This Talk: The Best Features Ruby Doesn't Have (Yet)John Feminella · RubyConf 2017
• 35mEscaping The Tar PitErnesto Tagwerker · RubyConf 2019
• 37mRescuing RubyGreg Brockman · RubyConf AU 2014
• 35mThe worst Ruby codes I've seen in my lifeFernando Hamasaki de Amorim · RubyKaigi 2015
• 40mTowards Tooling; A Look at What is Missing From our ToolboxLoren Segal · Wicked Good Ruby 2013
• 32mSAST and Sensibility: A Rubyist’s Guide to Static...Kylie Stradley · XO Ruby Atlanta 2025
• 32mruby best practice patternsRein Henrichs · Lone Star Ruby Conference 2008