メルカリ社員100人に聞いたGoLandの使い方 / JetBrains Night Tokyo 2018

https://info.jetbrains.com/jetbrains-night-tokyo-2018.html

Transcript

1. ϝϧΧϦࣾһ100ਓʹ
   ฉ͍ͨGoLandͷ࢖͍ํ
   JetBrains Night Tokyo 2018
   Θ͔Ί ·͞ͻΖ
   

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2. Θ͔Ί ·͞ͻΖ @v vakame
   Masahiro Wakame
   Go
   GraphQL
   TypeScript
   

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3. Q. ຊ౰ʹ100ਓʹฉ͍ͨʁ
   

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4. Q. ຊ౰ʹ100ਓʹฉ͍ͨʁ
   

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5. Q. ຊ౰ʹ100ਓʹฉ͍ͨʁ
   ड़΂ਓ਺ 372ਓ ʹ
   ฉ͖·ͨ͠ʂʂ
   

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6. ࠓ೔ͷαϚϦ
   ΈΜͳʹฉ͍ͨ
   ूେ੒Λ࿩͠·͢ʂ
   

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7. ࠓ೔ͷαϚϦ
   •GoLand ཱࣗɾࣗशͷͨΊͷ࢓૊Έ
   •IDEʹٻΊΔػೳ
   •GoLandͷศརͳػೳͨͪ
   

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8. ֤OSຖͷ࿩
   •๻͸macOSϢʔβͰ͢
   •ࠓ೔͸جຊmacOSϕʔε
   •Action໊͕Θ͔Ε͹OK
   •͋ͱͰઆ໌͠·͢
   

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9. ཱࣗɾࣗशͷͨΊͷ࢓૊Έ
   

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10. GoLand͸ଟػೳͰ͋Δ
    •ػೳ͕ແݶʹ͋Δ
    •஌Βͳ͍ػೳ͸࢖͏͜ͱ͕Ͱ͖ͳ͍
    •Ͳ͏΍ͬͯڧ͘ͳΕ͹͍͍Μͩ…
    ·ͣ͸ษڧͷ࢓ํ͔Β
    

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11. Productivity Guide
    •௚༁͢Δͱੜ࢈ੑΨΠυ
    •Help > Productivity Guide
    •ීஈ࢖ͬͯͳ͍ػೳʹ஫໨
    •ਓͷΛݟΔͱ݁ߏָ͍͠
    

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12. Find Action
    •ActionΛ୳͢
    •Help > Find Action
    •ࠓ೔͜Ε͚ͩ͸֮͑ͯؼͬͯʂ
    •͍͍ͩͨͷ΋ͷ͕Action
    Cmd+Shift+A
    

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13. Find Action
    ͍͍ͩͨ
    Կ΋͔΋
    Actionͩʂ
    

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14. Find Action
    ຊࢿྉ΋
    Action໊Λ
    ໌ه͠·͢
    

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15. Search Everywhere
    •ͳΜͰ΋ݕࡧ
    • ͜Ε
    •ϑΝΠϧ, ܕ, Action ͳʹ΋͔΋͔Βݕࡧ
    Shift Shift
    ࠔͬͨΒShift࿈ଧϚϯ
    

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16. Preferencesͷݕࡧ
    •ݕࡧܥػೳ΄Μͱॆ࣮͍ͯ͠Δ
    

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17. ϖΞ ϓϩάϥϛϯά
    •Ұ൪ϕʔγοΫͳ΍ͭ
    •ਫ਼ਆతෑډ͸ͪΐͬͱߴ͍
    •Ҋ֎ΈΜͳ࢖͍ํ͕όϥ͚Δ
    •γϣϧμʔαʔϑΟϯ͢Δͷָ͕
    ڐՄ͸औΖ͏ʂ
    

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18. Tip of the Day
    •ศར৘ใΛϥϯμϜʹදࣔ
    •Help > Tip of the Day
    •Ұؾʹෳ਺ݟΔͱָ͍͠
    •গͣͭ͠ڧ͘ͳΖ͏ʂ
    

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19. Presentation Assistant (Plugin)
    • github.com/chashnikov/IntelliJ-presentation-
    assistant
    • γϣʔτΧοτΩʔදࣔϓϥάΠϯ
    Unofficial PluginͰ͢
    

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20. Key Promotor X (Plugin)
    • github.com/halirutan/IntelliJ-Key-Promoter-X
    • γϣʔτΧοτΩʔڭҭϓϥάΠϯ
    • Ϛ΢εͱ͔࢖͏ͱࢦಋ͞ΕΔ
    Unofficial PluginͰ͢
    

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21. •Preference > Keymap >
    γϣʔτΧοτٯҾ͖
    ਓ͔ΒڭΘΔ࣌ศར
    ͻͬͦΓͯ͠·͢
    

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22. খ͍͞Ϙλϯશ෦ԡ͢
    •݁ߏݟಀ͚͢Ͳਵॴʹ͋Δ
    ͱΓ͋͑ͣԡ͠·͠ΐ͏
    

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23. ෆຬΛݟಀ͞ͳ͍
    •ෆศʹ׳Εͳ͍΄͏͕Α͍
    •ղফͯ͠৐Γӽ͍͖͍͑ͯͨ
    •ݴ͏͸қ͘ߦ͏͸೉͠…
    ୳ͤ͹(͍͍ͩͨ)͋Δʂ
    

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24. ϒϩάͱ͔ݟΔ
    •blog.jetbrains.com/go/
    •blog.jetbrains.com/jp/category/goland
    •samuraism.com/jetbrains/training
    ࡢ೔ϓογϡ͞ΕͨͷͰ…(ૉ௚
    

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25. IDEʹٻΊΔػೳ
    

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26. Goͷύοέʔδ؅ཧ
    •܈༤ׂڌ
    •Dep
    •Go Modules (Official)
    •↑Experimental
    GoLand͸Go Modulesαϙʔτࡁ
    

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27. Go Modules
    •GO111MODULE=on
    •࠷ߴͷαϙʔτʂ
    ͜Εͦ͜ސ٬͕ٻΊ͍ͯͨ΋ͷ…ʂ
    

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28. Go Module
    •GoLandͷGo Moduleαϙʔτ࠷ߴ(࠶ܝ
    •$GOPATH ͷมͳpackageरΘͳ͍
    •↑ͪΐ͍ͪΐ͍ਏ͔ͬͨ…
    •IDEͱͯ͠ͷ׬੒౓͕͕͋ͬͨ(ؾʹͳΔ
    

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29. σόοΨ
    •ී௨ʹ࢖͑Δ (Delve͕backend
    •Break point / Inspector
    •Unit TestपΓͷαϙʔτ΋ॆ࣮
    •Ͱ͖ͳ͍…
    •ෳࡶͳEvaluate Expression / Set Value
    

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30. AppEngineαϙʔτ
    •Google Cloud PlatformͷAppEngine
    •࢖ͬͯ·͔͢ʁ࢖ͬͯ·͢Ͷʁ
    •go111 runtimeͰΊͬͪΌָʹͳͬͨ
    •AppEngineଆ͕าΈد͖ͬͯͨܗ
    •2018.3 Ͱچruntimeͷαϙʔτ΋վળ
    ΊͬͪΌ࿩͍͚ͨ͠Ͳधཁബͦ͏ͳͷͰ࠙਌ձͰ…
    

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31. ίʔυิ׬
    •ී௨ͷαδΣετ
    •ςετੜ੒
    •Struct ͷFieldຒΊ
    •etc…
    

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32. πʔϧྨ…ʁ
    •gofmt, goimportsͳͲ
    •αϙʔτ༗Γ
    •νʔϜͰ౷Ұ͢ΔͨΊಛఆͷΤσΟλʹ
    ґଘͨ͘͠ͳ͍ؾ࣋ͪ΋…
    •gometalinter → File Watcher
    

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33. ଞΤσΟλϢʔβʹฉ͍ͨ
    

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34. Vim
    •IdeaVim Plugin
    •ΠέΔ೿
    •ͭΒ͍೿
    •Undoͷڍಈ͕ਏ͍…
    plugins.jetbrains.com/plugin/164-ideavim
    

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35. ίʔυิ׬ͱ͔͍Δͷ೿
    ݾΛ஁͑Ε͹
    Α͘ͳ͍Ͱ͔͢ʁ
    ※ݸਓͷײ૝Ͱ͢(ͬͯݴ͑ͬͯ
    

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36. GoLandͷศརͳػೳͨͪ
    ৭ʑग़͖ͯ·ͨ͠
    

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37. Show Intention Action
    •ͦͷ࣌ศརͦ͏ͳΞΫγϣϯΛදࣔ
    •Կ͔͋Γͦ͏ͱࢥͬͨΒͱΓ͋͑ͣԡ͢
    •Quick Fix ʹ͍ۙ
    •Warning΍Error͕ͳͯ͘΋ԡͤΔ
    Option + Enter
    

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38. Test (Cmd+Shift+T)
    •Code ⇔ Test ͷҠಈ
    •Testͷੜ੒
    •Table Driven TestͳςϯϓϨΛੜ੒ʂ
    •ςετؔ਺໊΋ΘΓͱྑ͍
    Table Driven Testͯ͠·͔͢ʁ
    

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39. Fill struct recursively
    •஋ͱͯ͠struct࡞Δ࣌ʹศར
    •zero஋ͰҰ୴શ෦ຒΊͯ͘ΕΔ
    Testॻ࣌͘ʹΑ͘࢖͍·͢
    

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40. Mark Directory as
    •Excludes ͱ͔͢Δ
    •ݕࡧͱ͔ʹҾ͔͔ͬΒͳ͘ͳΔ
    ͿͬͪΌ͚͋Μ·࢖Θͳ͍
    

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41. Declaration
    •ఆٛʹඈͿ΍ͭ
    •͜ͷϝιουͷ࣮૷Ͳ͏ͳͬͯΔͷʙ
    •Jump to Source ͱҧ͍͕Θ͔Βͳ͍…
    •GoҎ֎ͷݴޠͩͱҧ͏ͷ͔ͳ
    ͍ͭτϥοΫύουͰૢ࡞͢Δ΍ͭ
    

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42. Back
    •1ݸલͷ৔ॴʹ໭Δ΍ͭ
    •Declarationͱ૊Έ߹Θͤͯසൟʹ࢖͏
    •๻͸࠷ۙ·Ͱ஌Βͳͯ͘ෆศͩͱࢥͬͯ
    ·ͨ͠…
    

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43. Next Project Window
    •ผ૭Ͱ։͍͍ͯΔProjectʹҠಈ͢Δ΍ͭ
    •ɹ͔ͨ͠ʹ
    •͔ɺ͔͍͍ͬ͜…
    

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44. Edit Custom VM Options
    •GoLandͷىಈΦϓγϣϯ͍͡ΕΔ
    •-XmxΛ૿΍͢ʂͱ͍͏ਓ͕ଟ͔ͬͨ
    •JVMͷ࠷େώʔϓαΠζ
    •๻͸ -Xmx1920m ʹ͠·ͨ͠
    

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45. Recent Files
    •Recent Edited Files ΋͋ΔΑʂ
    

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46. •͜ͷInterfaceΛ࣮૷ͯ͠Δ΍ͭͲ͍ͭʁ
    •Methodͷ࣮૷ͷҰཡͱ͔΋ग़ͤΔ
    Implementations
    ݁ߏසൟʹ࢖͏…ʂΊͬͪΌྑ͍
    

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47. Call Hierarchy
    •ؔ਺ͳͲͷݺͼग़͠πϦʔΛදࣔ
    •Find Usage ΑΓศར…ʂ
    •࠶ؼతʹḷΕΔ
    Find Usageͣͬͱ࢖ͬͯͨ…
    

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48. Scratch File
    •GoͰ΋ී௨ʹ࢖͑Δ
    •ಉ྅ͱίʔυͷ૬ஊ͍ͨ͠…
    •Playground → ิ׬ͳͯ͘ࢮ͵
    •Scratch FileͰॻ͍ͯShare͢Δ
    ৽نϫʔΫεϖʔε४උ͸ΊΜͲ͍
    

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49. JetBrains Toolbox
    •www.jetbrains.com/toolbox/
    •GoLand ͦͷଞIDEೖΕΔͷΒ͘Β͘
    •όʔδϣϯݻఆͱ͔΋Ͱ͖Δ
    •Ξϓσ΋ϥΫϥΫʂ
    Actionͱ͔Ͱ͸ͳ͍͚Ͳ…
    

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50. Implement Interface
    •͋Δstructͱ͔ʹඞཁͳϝιουΛ
    ͼΌͬʂͱੜ΍ͤΔ
    ๻͸ implement missing method ೿Ͱ͢
    

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51. Implements missing method
    •଍Γͳ͍ϝιουΛͼΌͬʂͱੜ΍ͤΔ
    ίϯύΠϥʹinterface࣮૷νΣοΫͤ͞ΒΕΔ
    

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52. File… :Line:Column
    •File Ͱ :ߦ൪߸:ྻ൪߸ Ͱ֘౰Ґஔʹඈ΂Δ
    σόοάָ͕ʂ
    

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53. Next Highlighted Error
    •Warning, Error etc ʹδϟϯϓͰ͖Δ
    •ίϯύΠϧΤϥʔͷमਖ਼࣌ʹศར
    

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54. Show tabs in one row
    •Preferences > Editor > General > Editor Tabs
    •Show tabs in one row Λ disable ʹ͢Δ
    •λϒද͕ࣔ1ߦʹͳΔͷෆศͩΑͶ…
    •શ෦ݟ͑ͯΔͱ޾ͤ
    

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55. Camel Case matching
    •ೖྗิ׬Ͱ໊લΛશ෦ଧͭඞཁ͸ͳ͍
    •େจࣈ෦෼͚ͩͱ͔Ұ෦෼͚ͩͰOK
    ͜͏͍͏໊લͷ΍ͭ͋ͬͨΑͳ…ʁ
    Ͱίʔυ͕ॻ͚·͢(υΩϡϝϯτ͸ಡ΋͏
    

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56. Quick Documentation
    •υΩϡϝϯτ͕γϡοͱݟΕ·͢
    •External Documentation΋͋ΔΑʂ
    •godocͷWebϖʔδ͕γϡοͱ։͘
    

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57. Find in Path
    •ϓϩδΣΫτશମݕࡧͱ͔
    •Τϥʔϝοηʔδ͔ΒൃੜՕॴௐ΂ͨΓ
    •Replace in Path ΋Α͘࢖͍·͢
    

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58. ࠷ޙʹ
    

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59. We are hiring!
    •͞ΒͳΔ৘ใ͸ࣾ಺Wiki΍SlackͰʂ
    •ΞΫηε͢Δʹ͸ೖࣾ͢Δ͔͠ͳ͍…ʂ
    •ϝϧΧϦˠ careers.mercari.com/
    •ϝϧϖΠˠ jp.merpay.com/careers/
    

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