RubyでPrettierを使ってみた

Tama.rb #25 年忘れLT会の発表資料です。

Transcript

1. RubyͰPrettierΛ
   ࢖ͬͯΈͨ
   Tama.rb #25 ೥๨ΕLTձ
   2020.12.27@fuqda90
   

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2. About me fuqda (;ͩ͘)
   • 2017೥11݄ʙݱࡏ
   ීஈ͸ܙൺणपลͰ
   RubyΛॻ͍ͯΛ৯΂ͯ·͢ɻ
   Twitter : ˏfuqda90
   

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3. ͜͜࠷ۙɺ
   RubyͰPrettierΛ
   ࢖͏ͷ͕Ұ෦ͷؒͰ
   ੝Γ্͕͍ͬͯΔͦ͏
   

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4. ͱ͍͏Θ͚Ͱʂ
   ࣮ࡍʹࢼͭͭ͠ɺ
   ͲΜͳײ͡ͳͷ͔ͷ
   ڞ༗ΛΏΔ͘͠Α͏͔
   ͱࢥ͍·͢
   

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5. ࠓճ͓࿩͢Δ͜ͱ
   • Prettierͦͷ΋ͷͷ࿩
   • ओͳઃఆपΓͷ࿩
   • ܰ͘৮ͬͨॴײతͳ࿩
   

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6. ࠓճ͓࿩͠ͳ͍͜ͱ
   • ࣮ӡ༻తͳ࿩
   (ӡ༻தͷαʔϏεʹద༻ͯ͠ͳ͍ͷͰ)
   • RubyCopͱͷൺֱతͳಥͬࠐΜͩ࿩
   

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7. ໨࣍
   ɾͦ΋ͦ΋Prettierͬͯʁ
   ɾRubyͰPrettierΛ࢖͏ํ๏
   ɾ࢖ͬͯΈͨॴײ
   

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8. ໨࣍
   ▶︎ ͦ΋ͦ΋Prettierͬͯʁ
   ɾRubyͰPrettierΛ࢖͏ํ๏
   ɾ࢖ͬͯΈͨॴײ
   

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9. Prettier
   • Node.jsͰಈ࡞͢ΔίʔυϑΥʔϚολʔ
   • Rubyք۾ͩͱRuboCopతͳΞϨ
   • ֤छIDEͰ֦ுػೳ͔Β΋ར༻Մ
   • 2020/12/11 ʹruby plugin v1.0͕ϦϦʔε
   

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10. ໨࣍
    ɾͦ΋ͦ΋Prettierͬͯʁ
    ɾRubyͰPrettierΛ࢖͏ํ๏
    ɾ࢖ͬͯΈͨॴײ
    

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11. ໨࣍
    ɾͦ΋ͦ΋Prettierͬͯʁ
    ▶︎ RubyͰPrettierΛ࢖͏ํ๏
    ɾ࢖ͬͯΈͨॴײ
    

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12. gem ‘prettier’ ΛೖΕΔ
    Auto correct ίϚϯυɿ
    bundle exec rbprettier --write ‘**/*.rb’
    ઃఆͷมߋํ๏ɿ
    .prettierrc ʹఆٛΛ௥Ճ
    ※ ͦͷଞ npm / yarnͰ΋ @prettier/plugin-ruby ͷ
    ϓϥάΠϯͰରԠՄೳ
    

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13. ⚠஫ҙ
    Rubyɿ2.5~
    Nodeɿ8.3~
    ※2020೥࣌఺
    ϨΨγʔؾຯͳϓϩδΣΫτ
    ͩͱ࢖͑ͳ͍ͷͰ஫ҙ
    

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14. .prettierrc ͷઃఆ
    ྫ1) ม਺ల։ͷͳ͍৔߹ͷγϯάϧΫΥʔτ
    {
    "rubySingleQuote": true
    }
    -str = "จࣈྻ"
    +str = 'จࣈྻ'
    

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15. .prettierrc ͷઃఆ
    ྫ2) จࣈྻɾγϯϘϧ഑ྻϦςϥϧͷਪ঑
    {
    "rubyArrayLiteral": true
    }
    -beatles = ["john", "paul", "george", "ringo"]
    +beatles = %w[john paul george ringo]
    -nirvana = [:kurt, :kris, :dave]
    +nirvana = %i[kurt kris dave]
    

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16. .prettierrc ͷઃఆ
    ྫ3) ϋογϡϩέοτͷඇਪ঑
    {
    "rubyHashLabel": true
    }
    -{ :’radio_name' => 'ϋογϡϩέοτେ޷͖' }
    +{ ‘radio_name’: 'ϋογϡϩέοτେ޷͖' }
    

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17. ͦͷଞͷઃఆ͸ެࣜΛࢀর
    

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18. ࣮ԋͯ͠ΈΔ
    

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19. ໨࣍
    ɾͦ΋ͦ΋Prettierͬͯʁ
    ɾRubyͰPrettierΛ࢖͏ํ๏
    ɾ࢖ͬͯΈͨॴײ
    

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20. ໨࣍
    ɾͦ΋ͦ΋Prettierͬͯʁ
    ɾRubyͰPrettierΛ࢖͏ํ๏
    ▶︎ ࢖ͬͯΈͨॴײ
    

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21. ྑͦ͞͏ͳͱ͜Ζ
    • RuboCopΑΓ΋(ؾ࣋ͪ΄Μͷগ͠)଎ͦ͏
    • Prettier͕ೖ͍ͬͯΕ͹ɺ
    ผ్gemΛೖΕͳͯ͘΋࢖͑Δͷ͸ศར✨
    

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22. ؾʹͳͬͨͱ͜Ζʙͦͷ1ʙ
    • ↓Auto correctͨ͠ࡍʹίϯιʔϧʹ
    ࣮ߦ࣌ؒͷΈग़ͯɺԿͷϧʔϧʹҾֻ͔ͬͬͯमਖ਼͞Εͨ
    ͷ͔ग़ͯ͜ͳ͍఺͸ͪΐͬͱؾʹͳͬͨ…
    $ bundle exec rbprettier --write 'prettier.rb'
    prettier.rb 370ms
    • JS༻ͷPrettierΛRubyʹస༻ͨ͠΋ͷͳͷͰ
    ౰ͨΓલ͚ͩͲRubyʹ޲͚ͨϧʔϧ͕গͳ͍ʁ
    (RuboCop΄Ͳϧʔϧ͕ॆ࣮ͯ͠ͳ͍)
    

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23. ؾʹͳͬͨͱ͜Ζʙͦͷ2ʙ
    • ઃఆΦϓγϣϯΛௐ΂͍ͨͱ͖ʹ
    Prettier for Ruby ͷϖʔδͱ
    Prettier ࣗମͷϖʔδΛߦͬͨΓདྷͨΓ͢Δ
    ͷ͕໘౗
    →Prettierࣗମͷ͜ͱ͸ެࣜΛݟͯͶʂͬͯ
    ֎෦ϖʔδΛͨΒ͍ճ͢ͷmʓngʓidײ͋Δ
    

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24. ॴײ·ͱΊ
    • ݱ࣌఺ͩͱRuboCop͔Β৐Γ׵͑Λ
    ݕ౼ग़དྷΔ΄ͲʮίϨ͍͍͍͢͝ʂʯͱ͍͏
    ܾఆଧతͳ΋ͷ͸ͳ͔ͬͨҹ৅…
    • ղੳ͕ମײతʹͪΐͬͱ͚ͩ଎͔ͬͨͷͰɺ
    ϧʔϧ΍ॾʑ͕ॆ࣮͖ͯͨ͠Β
    Ұͭͷબ୒ࢶͱͯ͠͸ΞϦ͔΋ʁ
    

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25. ͝ਗ਼ௌ͋Γ͕ͱ͏
    ͍͟͝·ͨ͠
    

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