Rails アプリケーションのアップデートは大変 / Upgrading Rails application is hard

Pepabo Tech Conference #13

Transcript

1. !ISZTE 3BJMT
   ΞϓϦέʔγϣϯͷ
   Ξοϓσʔτ͸େม
2. ೥ೖࣾ !ISZTE &$ࣄۀ෦αʔϏεج൫νʔϜ IUUQTISZTEPSH
3. IUUQTISQFQBCPDPN JOUFSWJFX
4. αʔϏεج൫νʔϜͬͯ
5. ࠜݯతͰ͋Γɺղܾɾ࣮ݱํ๏͕Θ͔Βͳ͍ Α͏ͳٕज़՝୊ʹऔΓ૊Έɺ&$ࣄۀ෦ͷ࣍ ͷ೥ͷ੒௕Λࢧ͑Δɻ !LFODIBO
6. جຊઓུ w%FWFMPQFS
   &YQFSJFODF
   ͷ޲্
   w࣍ͷ೥Λࢧ͑Δٕज़΁ͷ౤ࢿ
7. جຊઓུ w%FWFMPQFS
   &YQFSJFODF
   ͷ޲্
   w࣍ͷ೥Λࢧ͑Δٕज़΁ͷ౤ࢿ "
8. %FWFMPQFS
   &YQFSJFODF
   ͷ޲্ʁ
9. ࠷ۙ͸͜Μͳ͜ͱΛ͍ͯ͠·͢ wݴޠॲཧܥɺϑϨʔϜϫʔΫ౳ͷόʔδϣϯΞοϓ
   wΤϥʔ௨஌ͱ޲͖߹͏
10. ࠷ۙ͸͜Μͳ͜ͱΛ͍ͯ͠·͢ wݴޠॲཧܥɺϑϨʔϜϫʔΫ౳ͷόʔδϣϯΞοϓ
    wΤϥʔ௨஌ͱ޲͖߹͏ ܧଓతʹߦ͏ͨΊͷ࢓૊Έͮ͘Γ #
11. ͔͜͜Βຊ୊
12. 3BJMT
    ΞϓϦέʔγϣϯͷ
    Ξοϓσʔτ͸େม
13. ͲΜͳΞϓϦέʔγϣϯʁ wϓϥΠϕʔτͳ
    8FC
    "1*
    Λ୲౰
    wೖग़ྗ͸
    +40/
    wෳ਺ͷΞϓϦέʔγϣϯ͔Βࢀর
14. ͲΜͳঢ়گͳͷʁ $ bundle exec rake stats +----------------------+--------+--------+---------+---------+-----+-------+ | Name | Lines | LOC | Classes | Methods | M/C | LOC/M | +----------------------+--------+--------+---------+---------+-----+-------+ | Controllers | 7140 | 5771 | 126 | 494 | 3 | 9 | | Helpers | 104 | 86 | 0 | 14 | 0 | 4 | | Jobs | 777 | 633 | 31 | 46 | 1 | 11 | | Models | 25804 | 17165 | 386 | 1574 | 4 | 8 | | Mailers | 501 | 407 | 16 | 40 | 2 | 8 | | Javascripts | 479 | 375 | 0 | 53 | 0 | 5 | | Libraries | 4927 | 4084 | 177 | 453 | 2 | 7 | | Tasks | 164 | 143 | 0 | 0 | 0 | 0 | | Config specs | 56 | 48 | 0 | 0 | 0 | 0 | | Controller specs | 8095 | 6640 | 0 | 6 | 0 | 1104 | | Decorator specs | 434 | 351 | 0 | 0 | 0 | 0 | | Feature specs | 342 | 261 | 0 | 0 | 0 | 0 | | Job specs | 1807 | 1497 | 0 | 0 | 0 | 0 | | Lib specs | 6743 | 5685 | 0 | 0 | 0 | 0 | | Mailer specs | 2733 | 2181 | 0 | 0 | 0 | 0 | | Model specs | 48150 | 39211 | 0 | 4 | 0 | 9800 | | Request specs | 26140 | 22135 | 0 | 0 | 0 | 0 | | Serializer specs | 1278 | 752 | 0 | 0 | 0 | 0 | | Uploader specs | 155 | 130 | 0 | 0 | 0 | 0 | +----------------------+--------+--------+---------+---------+-----+-------+ | Total | 135829 | 107555 | 736 | 2684 | 3 | 38 | +----------------------+--------+--------+---------+---------+-----+-------+ Code LOC: 28664 Test LOC: 78891 Code to Test Ratio: 1:2.8 4JNQMF$PW
    Ͱͷܭଌ݁Ռ΋
    
15. ؆୯ʹͰ͖ͦ͏ʂ
17. ΞϓϦέʔγϣϯͷ೉ॴ wෳ਺σʔλϕʔε
    wෳ߹ओΩʔ
18. ΞϓϦέʔγϣϯͷ೉ॴ wෳ਺σʔλϕʔε
    wUIJBHPQSBEJPDUPQVT
    wෳ߹ओΩʔ
    
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19. ݸਓతͳؾ࣋ͪ w3BJMT
    ΞϓϦέʔγϣϯ͸Ͳͷఔ౓͕ඪ४ػೳͰ࡞Β Ε͍ͯΔ͔͕೉қ౓ʹ௚݁
    w֦ுతͳϥΠϒϥϦ͕࢖ΘΕ͍ͯΔͱͦΕ͚ͩ֬ೝൣ ғɺྔ͕γϯϓϧʹ૿͑Δҹ৅
20. ҰํͰʜ wϥΠϒϥϦΛར༻͍ͯ͠Δͱ͍͏ͷ͸ɺࣗલͰ֦ு͠ ͍ͯΔͱ͍͏ύλʔϯͷ/ഒָ
21. Ξοϓσʔτͯ͠ΈΑ͏ʂ
22. 
    UIJBHPQSBEJPDUPQVT w3BJMT
    ܥͰෳ਺σʔλϕʔεʹରԠͨ͜͠ͱ΋͋ͬͯ ׆ಈ͕ԼՐʹ
    w
    ࢀߟ
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    ͱͯ͠࢖͓ͬͯΓɺ͜Ε͸ඪ ४ػೳͰ·͔ͳ͑Δ
23. '
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    w೚ҙͷόʔδϣϯʹରԠͨ͠΋ͷΛ࢖͑͹ऴΘΓʂ
24. ·͕͍ͪ
25. Ξοϓσʔτͯ͠Έ͚ͨͲʜ wBMJBT@BUUSJCVUF
    ΛղܾͰ͖ͳ͍
    wΞοϓσʔτͷલޙͰൃߦ͞ΕΔΫΤϦʹҧ͍͕ग़Δ
26. BMJBT@BUUSJCVUF
    ͬͯʁ w೚ҙͷଐੑΛผͷ໊લͰѻ͑ΔΑ͏ʹ͢Δػೳ
    w IUUQTBQJSVCZPOSBJMTPSHDMBTTFT"DUJWF.PEFM"UUSJCVUF.FUIPET$MBTT.FUIPETIUNM
27. BMJBT@BUUSJCVUF
    Λ࢖͏ཧ༝ wΧϥʔϛʔγϣοϓ͸೥Ҏ্ͷྺ࢙Λ࣋ͭαʔϏε
    w౰࣌ͷɺϑϨʔϜϫʔΫʢ3BJMTʣʹԊͬͨσʔλϞσϧͷઃܭ͕Ͱ͖ ͍ͯͳ͍Օॴ͕ଘࡏ͍ͯ͠Δ
    wͦ͜Λٵऩ͠ɺ୭΋͕ѻ͍΍͍͢Ϟσϧʹ͢ΔͨΊʹ
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    Λ࢖͏
    wΞϓϦέʔγϣϯͱσʔλʹ͓͚ΔϥΠϑαΠΫϧͷҧ͍ͷӨڹ
28. BMJBT@BUUSJCVUF
    Ͱͷ໰୊ wҎԼͷΑ͏ͳΫΤϦ͕ղܾͰ͖ͳ͔ͬͨ
    wύονΛ͋ͯͯରԠ
    w6QTUSFBN
    ΁ͷؐݩ͸·ͩͰ͢
    
29. ൃߦ͞ΕΔΫΤϦʹҧ͍͕ʜ wςετ΋ΦʔϧάϦʔϯʹͳΓ
    wݕূ؀ڥ্Ͱ
    2"
    Λߦ͍ɺҰ௨Γಈ࡞ݕূΛߦͬͨ
    wϦϦʔεΛ໨લʹ٧·ΔϦΫΤετΛൃݟ
30. ൃߦ͞ΕΔΫΤϦʹҧ͍͕ʜ wҎԼͷΑ͏ͳΫΤϦͷ݁Ռ͕ҙਤ͠ͳ͍΋ͷʹ
    wεϩʔΫΤϦʹͳͬͯ͠·ͬͨ
    wൃߦ͞ΕΔΫΤϦ·Ͱ͸֬ೝͰ͖͍ͯͳ͔ͬͨ
31. मਖ਼͸͚ͩ͜͜Ͱ͍͍ͷ͔ʁ
32. ࠩ෼ͷ֬ೝ͕େมʜ wൃߦ͞ΕΔ
    42-
    Λશͯ֬ೝ͢Δͷ͸େมʜ
    wػցతʹ൑அ͠ɺ໨ࢹͷ਺ΛݮΒͤͳ͍΋ͷ͔ʜ
34. ͜ΕͰ֬ೝͰ͖Δ͔΋ʂ wςετ಺Ͱൃߦ͞ΕΔΫΤϦΛόʔδϣϯຖʹอଘ
    w"DUJWF3FDPSE-PH4VCTDSJCFS
    Ͱൃߦ͞ΕΔ
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    wલޙͷ݁ՌΛࣈ໘ͷΈͰൺֱ
    w4FUOFX <26&3:>
    ?
    4FUOFX <26&3:>
    w1SFQBSFE
    4UBUFNFOU
    ͳΒ
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35. ΍ͬͯΈͨ
37. ͪΐͬͱμϝ͔΋ʜ wIUUQTHJUIVCDPNISZTETRBQ
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    ʹ͸ͳ͍Ͱ͢ʣ
    wDPNQPTJUF@QSJNBSZ@LFZT
    ͷςετͰࢼͯ͠Έͨ
    w୯ͳΔࣈ໘Ͱͷൺֱͩͱεϖʔεɺύϥϝʔλͷҧ͍Έ͍ͨͳͷ͕ Ҿ͔͔ͬΓͩΊ͔΋
    wͦ΋ͦ΋ςετσʔλͷ༻ҙͷΫΤϦͱ͔΋ೖ͍ͬͯͨΓʜ
    w݁Ռͷ
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    ͸ͪ͜Β
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38. ࠷ޙʹ wԣணͤͣʹࠩ෼ΛͪΌΜͱ֬ೝ͠·͠ΐ͏
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    w·ͩఘΊ͖Εͯͳ͍ͷͰ্ख͍ํ๏͸ͳ͍͔໛ࡧதͰ͢
    wͳʹ͔஌͍ͬͯΔਓ͕͍ͨΒڭ͍͑ͯͩ͘͞ʂʂʂ