Handle Slim Safety

大阪Ruby会議03 LT 「Handle Slim Safety」のスライド
https://regional.rubykaigi.org/osaka03/ #osrb03

Transcript

1. Yudai Takada Osaka RubyKaigi 03 2023.09.09 (Sat) Handle Slim Safety
2. ɾName: Yudai Takada ɾGitHub: @ydah ɾX: @ydah_ ɾMember of RuboCop RSpec team ɾSoftware Engineer at ANDPAD, Inc. self.inspect
3. Handle Slim Safety
4. What is Slim?
5. 4MJN
   ͸
   3BJMT
   Ҏ߱
   ʹରԠͨ͠ߴ଎
   ܰྔͳςϯϓϨʔτΤϯδϯͰ͢ɻओ ཁͳ
   3VCZ
   ͷ࣮૷શͯͰ͔ͬ͠Γςετ͞Ε͍ͯ·͢ɻ
   ࢲͨͪ͸ܧଓతΠϯ ςάϨʔγϣϯΛ࠾༻͍ͯ͠·͢ɻ HJUIVC
   BDUJPOT
   4MJN
   ͷ֩ͱͳΔߏจ͸ͭͷߟ͑ʹΑͬͯಋ͔Ε͍ͯ·͢
   ͜ͷಈ࡞Λߦ͏ ͨΊʹ࠷௿ݶඞཁͳ΋ͷ͸Կ͔ɻଟ͘ͷਓʑͷ
   4MJN
   ΁ͷߩݙʹΑͬͯ
   ൴Β ͕࢖͏
   )BNM
   ΍
   +BEF
   ͷӨڹΛड͚ߏจͷ௥Ճ͕ߦΘΕ͍ͯ·͢ɻ
   4MJN
   ͷ ։ൃνʔϜ͸ඒ͸ݟΔਓͷ໨ͷதʹ͋Δ͜ͱΛ෼͍ͬͯΔͷͰɺ͜͏͍ͬͨ ௥ՃʹΦʔϓϯͰ͢ɻ
   4MJN
   ͸
   ߏจղੳίϯύΠϧʹ
   5FNQMF
   Λ࢖͍
   5JMU
   ʹ૊Έࠐ·Ε·͢ɻ͜Ε ʹΑΓ
   4JOBUSB
   ΍ϓϨʔϯͳ
   3BDL
   ͱ΋Ұॹʹ࢖͑·͢ɻ
6. doctype html html head title My Slim Template body ruby: message = "Slim!" h1 Welcome to #{ message} p This is a simple example. ͜͏͍͏΍ͭ
7. ҆શʹ͔͋ͭ͏
8. doctype html html head title My Slim Template body ruby: message = "Slim!" h1 Welcome to #{ message} p This is a simple example. ࠓ೔ͷλʔήοτ ˡ͜͜
9. ͜Ε͸Կʁ Embedded engines: Tiltͷ͓͔͛ͰɺSlim ͸ଞͷςϯ ϓϨʔτΤϯδϯͷຒΊࠐΈʹݟࣄʹ ରԠ͍ͯ͠·͢ɻ Ruby,JavaScript,css,sass…etc
10. ҆શʹ͔͋ͭ͏
11. ຒΊࠐΈ಺ͷίϝϯτ doctype html html head title My Slim Template body h1 Welcome to Slim! javascript: // comment alert("Hello, World!");
12. ίϯύΠϧޙ <!DOCTYPE html> <html> <head> <title>My Slim Template </ title> < / head> : </ html> <script> / / mecha kimitsu joho alert("Hello, World!"); </ script> ݟΒΕͨ͘ͳ͍ίϝϯτ΋ ݟΒΕͯ͠·͏
13. ࢼߦࡨޡ %BOHFS΍4FNHSFQͰܯࠂ͢Δʁ
    ⭕
    ϧʔϧΛ௥Ճ͢Δ͚ͩͰྑ͍
    ❌
    ίϝϯτॻ͚ͩ͘Ͱܯࠂ͸ͭΒͦ͏
    ❌
    ܯࠂΛݟམͱ͞ΕΔͱҙຯ͕ͳ͍
14. ͭͬͨ͘ ZEBITMJNFNCFEEFENJOJGZ
    
15. slim-embedded-minify module Slim class Embedded < Filter class TagEngine < Engine prepend Minify::Tag end class JavaScriptEngine < TagEngine prepend Minify::Javascript end ennd
16. slim-embedded-minify module Slim class Embedded < Filter module Minify module Javascript include Tag def on_slim_embedded(engine, body, attrs) mini fi ed_body = minify(body) super(engine, mini fi ed_body, attrs) end ennnnd
17. slim-embedded-minify ⭕
    ίϝϯτ͕ࣗ༝ʹॻ͚Δ
    ⭕
    ௥Ճ
    
    ࡟আ΋͔ΜͨΜ
    ⭕
    ίϯύΠϧ݁ՌΛൺֱͯ͠ίϝϯτ ͷΈ͕ফ͍͑ͯΔ͔ʹΑͬͯ֬ೝՄ
18. Its safe now
19. ੩తղੳʹ͍ͭͯ
20. 3VCP$PQͰ͸ղੳෆՄ 4MJN͸3VCZͰ͸ͳ͍ͷͰɺ 4ZOUBY&SSPSʹͳΔ ͦΕ͸ͦ͏ spec/f i xtures/dummy.slim:1 : 5 : F : Lint/ Syntax: unexpected token tCOLON (Using Ruby 2.7 parser; conf i gure using TargetRubyVersion parameter, under AllCops) ruby: ^
21. ຒΊࠐΈҎ֎ͷTMJ̼ ੩తղੳπʔϧ͋Γ·͢ •r7kamura/slimcop •r7kamura/rubocop - slim ͕ɺຒΊࠐΜͰ͍ΔRubyίʔυͷ੩త ղੳ͸ग़དྷͳ͍
22. ຒΊࠐΈͷTMJ̼ ੩తղੳπʔϧ͋Γ·͢ •sds/slim - lint ͕ɺautocorrect͸ग़དྷͳ͍
23. ͍ͭͬͨͯ͘Δ ZEBITMJNFNCFEDPQ
    ❌
24. slimembedcop html ruby: if File.exists?("foo.txt") message = "Yay!" else message = "Nooo!" end h1 #{ message} ੾Γग़ͯ͠3VCP$PQʹ౉ͯ͠
    ղੳͯ͠΋Β͏
25. slimembedcop ❯ slimembedcop dummy.slim Inspecting 1 f i le W Offenses: dummy.slim:3 : 8 : W : [Correctable] Lint/ DeprecatedClassMethods: File.exists? is deprecated in favor of File.exist ?. if File.exists?("foo.txt") ^^^^^^^^^^^^
26. ⭕
    3VCP$PQͷطଘͷDPQ͕࢖͑Δ
    ⭕
    ࣗಈमਖ਼ʹରԠ͍ͯ͠Δ
    ⭕
    DPQ͕࡞ΕΔʹTMJNFNCFEDPQͷ DPQ΋࡞ΕΔ slimembedcop
27. We got static analysis
28. ීஈԿؾͳ͘࢖͍ͬͯΔ΋ͷʹ΋վળ ͷ༨஍͸ҙ֎ͱ຾͍ͬͯΔͷͰɺͲΜ ͲΜվળͯ͠ɺͲΜͲΜ޾ͤʹͳͬͯ ͍͖·͠ΐ͏ʂʂ ·ͱΊ
29. end