8年目のプロジェクトにRuboCopを導入した話/Introduce RuboCop In 8-year-old project

Transcript

1. ©2019 Wantedly, Inc. Introduce RuboCop In 8-year-old project May 30,

   2019 - Yuta Kamezaki Meguro.rb #27

2. ©2019 Wantedly, Inc. Yuta Kamezaki @ykamez About me Twitter: @ykamez_

   2 Wantedly. Inc. / Engineer 2019೥ೖࣾɻ Wantedly VisitͷάϩʔενʔϜॴଐ ෼ੳ͔ΒࢪࡦఏҊɺ࣮૷(αʔόʔ)·ͰΛ୲౰ɻ

3. ©2019 Wantedly, Inc. 3VCP$PQΛೖΕ͍ͨਓ ಛʹɺطଘͷϓϩδΣΫτʹೖΕΔέʔε ର৅

4. ©2019 Wantedly, Inc. େมͩͬͨ͜ͱ ޻෉ͨ͜͠ͱ ࠓ೔࿩͢͜ͱ ࡀͷϓϩδΣΫτʹ3VCP$PQΛಋೖ͢Δ·Ͱ

5. ©2019 Wantedly, Inc. w ͲͷϧʔϧΛ࠾༻͢Δ͔ w ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ w Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ େมͩͬͨ͜ͱ

   Ұൠతͳ࿩

6. ©2019 Wantedly, Inc. ྺ࢙͕௕ͯ͘ڊେ ೥ੜ·Ε ߦ਺: 166,566 େมͩͬͨ͜ͱ 8BOUFEMZͳΒͰ͸ͷ໰୊

7. ©2019 Wantedly, Inc. w ೥ؒΈΜͳࣗ༝ͳελΠϧͰॻ͍͖ͯͨ w طଘίʔυͷमਖ਼͕େม w ؔ܎ऀ͕ଟ͍ˠίϯηϯαε͕औΓͮΒ͍ w

   ࠓߋײ ৺ཧతϋʔυϧ େมͩͬͨ͜ͱ 8BOUFEMZͳΒͰ͸ͷ໰୊ ྺ࢙͕௕ͯ͘ڊେ

8. ©2019 Wantedly, Inc. σϑΥϧτͰ૸ΒͤͯΈͨ ͲͷϧʔϧΛ࠾༻͢Δ͔

9. ©2019 Wantedly, Inc. ͲͷϧʔϧΛ࠾༻͢Δ͔ Inspecting 4062 files 4062 files inspected,

   126547 offenses detected σϑΥϧτͷϧʔϧͷ৔߹ 126,547 offenses

10. ©2019 Wantedly, Inc. σϑΥϧτͷϧʔϧ͸ݫͦ͠͏ ͲͷϧʔϧΛ࠾༻͢Δ͔ ϧʔϧͱݱঢ়ʹେ͖ͳဃ཭͕͋Δ

11. ©2019 Wantedly, Inc. NFPXDPQͷϧʔϧ͕ྑ͍Β͍͠ ͲͷϧʔϧΛ࠾༻͢Δ͔ ผνʔϜͰಋೖ͓ͯ͠Γɺධ൑͕ྑ͔ͬͨ

12. ©2019 Wantedly, Inc. 3VCP$PQͷDPOpHͷHFN https://github.com/sider/meowcop ελΠϧͷ໰୊͸ࢦఠ͠ͳ͍ w ϓϩδΣΫτݻ༗ͷϧʔϧΛແޮԽ

    https://blog-ja.sideci.com/entry/2016/10/03/171816 NFPXDPQͱ͸ →طଘProjectʹಋೖ͠΍͍͢

13. ©2019 Wantedly, Inc. 4062 files inspected, 12080 offenses detecte ͲͷϧʔϧΛ࠾༻͢Δ͔

    NFPXDPQͷϧʔϧͷ৔߹

14. ©2019 Wantedly, Inc. 4062 files inspected, 12080 offenses detecte ͲͷϧʔϧΛ࠾༻͢Δ͔

    NFPXDPQͷϧʔϧͷ৔߹ 12,080 offenses

15. ©2019 Wantedly, Inc. 4062 files inspected, 12080 offenses detecte 126,547→12,080

    ͲͷϧʔϧΛ࠾༻͢Δ͔ NFPXDPQͷϧʔϧͷ৔߹ ݱ࣮తͳဃ཭

16. ©2019 Wantedly, Inc. ͲͷϧʔϧΛ࠾༻͢Δ͔ w ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ w Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ େมͩͬͨ͜ͱ ✅

17. ©2019 Wantedly, Inc. ୭΋࢖Θͳ͔ͬͨΒҙຯ͕ͳ͍ ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ ڧ੍ྗ͕ͳ͍΋ͷ͸ܗ֚Խ͕ͪ͠

18. ©2019 Wantedly, Inc. ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ +

19. ©2019 Wantedly, Inc. 1. reviewdog 3VCP$PQͷ݁ՌΛ13ʹίϝϯτͯ͘͠ΕΔ IUUQTHJUIVCDPNSFWJFXEPHSFWJFXEPH 2. Travis

    CI $*αʔϏεͰࣗಈνΣοΫ ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ ˠΏΔΊͷӡ༻ࣗಈԽ $*͸མͱ͞ͳ͍

20. ©2019 Wantedly, Inc. ͲͷϧʔϧΛ࠾༻͢Δ͔ ✅ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ w Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ େมͩͬͨ͜ͱ ✅

21. ©2019 Wantedly, Inc. w طଘͷίʔυͷѻ͍ w ϧʔϧऔࣺબ୒ͷϓϩηε Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠

22. ©2019 Wantedly, Inc. طଘͷίʔυͷѻ͍ Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ ϧʔϧΛద༻ͨ͠Βɺطଘͷ$PEF΋मਖ਼ɻ ϧʔϧͱ$PEFͷဃ཭Λ๷͙ɻ

23. ©2019 Wantedly, Inc. ϧʔϧऔࣺબ୒ͷϓϩηε Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ JTTVFͰٞ࿦ˠϧʔϧ֬ఆˠ൓ө JTTVFͰΦʔϓϯʹٞ࿦͠ɺೲಘײΛ࣋ͨͤΔɻ

24. ©2019 Wantedly, Inc. ϧʔϧऔࣺબ୒ͷϓϩηε Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠

25. ©2019 Wantedly, Inc. JTTVFͰΦʔϓϯʹٞ࿦͠ɺೲಘײΛ࣋ͨͤΔɻ ϧʔϧऔࣺબ୒ͷϓϩηε Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ JTTVFͰٞ࿦ˠϧʔϧ֬ఆˠ൓ө

26. ©2019 Wantedly, Inc. ͲͷϧʔϧΛ࠾༻͢Δ͔ ✅ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ ✅Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠FUD େมͩͬͨ͜ͱ ✅

27. ©2019 Wantedly, Inc. ՝୊ େมͩͬͨ͜ͱ޻෉ͨ͜͠ͱ ํ๏ •ؔ܎ऀͷଟ͞ •ڊେ͞ •8೥ͷྺ࢙ •ΏΔ͍ϧʔϧͰελʔτ

    •CIͰࣗಈԽ(ڧ੍͸͠ͳ͍) •Φʔϓϯͳٞ࿦ •ӡ༻ํ਑ͷ໌֬Խ • ͲͷϧʔϧΛ࠾༻͢Δ͔ • ͲͷΑ͏ʹ࢖ͬͯ΋Β͏͔ • Ͳ͏͍͏ํ਑Ͱӡ༻͍͔ͯ͘͠ Ұൠతͳ໰୊ Wantedlyݻ༗ͷ໰୊

28. ©2019 Wantedly, Inc. ແࣄ3VCP$PQಋೖ ೥ӽ͠ͷಋೖ

29. ©2019 Wantedly, Inc. ྑ͍఺ • ϨϏϡʔલʹϛεʹؾ͕͚ͭͨɻ ՝୊ • ϧʔϧͷऔࣺબ୒͕೉͍͠ɻ •

    ϧʔϧΛܾΊΔϓϩηε͕ᐆດɻ ൓Ԡ

30. ©2019 Wantedly, Inc. ϧʔϧऔࣺબ୒ͷϓϩηεޮ཰Խ • ೲಘײͷ͋ΔϧʔϧΛͲ͏ૉૣܾ͘Ί͍͔ͯ͘ ͲΕ͘Β͍ݫ͍͠ӡ༻ʹ͢Δ͔ •

    CI͸མͱ͢ͷ͔ ࣾ಺ͷϧʔϧڞ௨Խ ϚΠΫϩαʔϏε ࢒Δ՝୊ ˠ·ͩ·ͩࢼߦࡨޡத

31. ©2019 Wantedly, Inc. ೥໨ͷϓϩδΣΫτͰ΋ಋೖͰ͖Δ • ઍཬͷಓ΋Ұา͔Β ΏΔ࢝͘ΊͯΈΑ͏ ·ͱΊ

32. ©2019 Wantedly, Inc. Thank you