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
   3BJMTΞϓϦέʔγϣϯͷ
   Ξοϓσʔτ͸େม
   

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2. ೥ೖࣾ
   !ISZTE
   &$ࣄۀ෦αʔϏεج൫νʔϜ
   IUUQTISZTEPSH
   

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3. IUUQTISQFQBCPDPN
   JOUFSWJFX
   

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4. αʔϏεج൫νʔϜͬͯ
   

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5. ࠜݯతͰ͋Γɺղܾɾ࣮ݱํ๏͕Θ͔Βͳ͍
   Α͏ͳٕज़՝୊ʹऔΓ૊Έɺ&$ࣄۀ෦ͷ࣍
   ͷ೥ͷ੒௕Λࢧ͑Δɻ
   !LFODIBO
   

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6. جຊઓུ
   w%FWFMPQFS&YQFSJFODFͷ޲্
   w࣍ͷ೥Λࢧ͑Δٕज़΁ͷ౤ࢿ
   

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7. جຊઓུ
   w%FWFMPQFS&YQFSJFODFͷ޲্
   w࣍ͷ೥Λࢧ͑Δٕज़΁ͷ౤ࢿ
   "
   

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8. %FWFMPQFS&YQFSJFODFͷ޲্ʁ
   

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9. ࠷ۙ͸͜Μͳ͜ͱΛ͍ͯ͠·͢
   wݴޠॲཧܥɺϑϨʔϜϫʔΫ౳ͷόʔδϣϯΞοϓ
   wΤϥʔ௨஌ͱ޲͖߹͏
   

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10. ࠷ۙ͸͜Μͳ͜ͱΛ͍ͯ͠·͢
    wݴޠॲཧܥɺϑϨʔϜϫʔΫ౳ͷόʔδϣϯΞοϓ
    wΤϥʔ௨஌ͱ޲͖߹͏
    ܧଓతʹߦ͏ͨΊͷ࢓૊Έͮ͘Γ
    #
    

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11. ͔͜͜Βຊ୊
    

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12. 3BJMTΞϓϦέʔγϣϯͷ
    Ξοϓσʔτ͸େม
    

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13. ͲΜͳΞϓϦέʔγϣϯʁ
    wϓϥΠϕʔτͳ8FC"1*Λ୲౰
    wೖग़ྗ͸+40/
    wෳ਺ͷΞϓϦέʔγϣϯ͔Βࢀর
    

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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$PWͰͷܭଌ݁Ռ΋
    
    

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15. ؆୯ʹͰ͖ͦ͏ʂ
    

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17. ΞϓϦέʔγϣϯͷ೉ॴ
    wෳ਺σʔλϕʔε
    wෳ߹ओΩʔ
    

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18. ΞϓϦέʔγϣϯͷ೉ॴ
    wෳ਺σʔλϕʔε
    wUIJBHPQSBEJPDUPQVT
    wෳ߹ओΩʔ
    wDPNQPTJUFQSJNBSZLFZTDPNQPTJUF@QSJNBSZ@LFZT
    

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19. ݸਓతͳؾ࣋ͪ
    w3BJMTΞϓϦέʔγϣϯ͸Ͳͷఔ౓͕ඪ४ػೳͰ࡞Β
    Ε͍ͯΔ͔͕೉қ౓ʹ௚݁
    w֦ுతͳϥΠϒϥϦ͕࢖ΘΕ͍ͯΔͱͦΕ͚ͩ֬ೝൣ
    ғɺྔ͕γϯϓϧʹ૿͑Δҹ৅
    

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20. ҰํͰʜ
    wϥΠϒϥϦΛར༻͍ͯ͠Δͱ͍͏ͷ͸ɺࣗલͰ֦ு͠
    ͍ͯΔͱ͍͏ύλʔϯͷ/ഒָ
    

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21. Ξοϓσʔτͯ͠ΈΑ͏ʂ
    

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22. UIJBHPQSBEJPDUPQVT
    w3BJMTܥͰෳ਺σʔλϕʔεʹରԠͨ͜͠ͱ΋͋ͬͯ
    ׆ಈ͕ԼՐʹ
    wࢀߟIUUQTHJUIVCDPNUIJBHPQSBEJPDUPQVT
    wٯʹ͍͏ͱ3BJMTʹ͢Ε͹ෆཁʹͳΔ
    w3FBE8SJUF4QMJUUJOHͱͯ͠࢖͓ͬͯΓɺ͜Ε͸ඪ
    ४ػೳͰ·͔ͳ͑Δ
    

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23. 'DPNQPTJUF@QSJNBSZ@LFZT
    w։ൃ͸ࠓ΋͞Ε͍ͯΔ
    w3BJMTͷόʔδϣϯ͝ͱʹରԠόʔδϣϯ͕ଘࡏ
    w೚ҙͷόʔδϣϯʹରԠͨ͠΋ͷΛ࢖͑͹ऴΘΓʂ
    

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24. ·͕͍ͪ
    

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25. Ξοϓσʔτͯ͠Έ͚ͨͲʜ
    wBMJBT@BUUSJCVUFΛղܾͰ͖ͳ͍
    wΞοϓσʔτͷલޙͰൃߦ͞ΕΔΫΤϦʹҧ͍͕ग़Δ
    

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26. BMJBT@BUUSJCVUFͬͯʁ
    w೚ҙͷଐੑΛผͷ໊લͰѻ͑ΔΑ͏ʹ͢Δػೳ
    w IUUQTBQJSVCZPOSBJMTPSHDMBTTFT"DUJWF.PEFM"UUSJCVUF.FUIPET$MBTT.FUIPETIUNM
    

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27. BMJBT@BUUSJCVUFΛ࢖͏ཧ༝
    wΧϥʔϛʔγϣοϓ͸೥Ҏ্ͷྺ࢙Λ࣋ͭαʔϏε
    w౰࣌ͷɺϑϨʔϜϫʔΫʢ3BJMTʣʹԊͬͨσʔλϞσϧͷઃܭ͕Ͱ͖
    ͍ͯͳ͍Օॴ͕ଘࡏ͍ͯ͠Δ
    wͦ͜Λٵऩ͠ɺ୭΋͕ѻ͍΍͍͢Ϟσϧʹ͢ΔͨΊʹ
    BMJBT@BUUSJCVUFΛ࢖͏
    wΞϓϦέʔγϣϯͱσʔλʹ͓͚ΔϥΠϑαΠΫϧͷҧ͍ͷӨڹ
    

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28. BMJBT@BUUSJCVUFͰͷ໰୊
    wҎԼͷΑ͏ͳΫΤϦ͕ղܾͰ͖ͳ͔ͬͨ
    wύονΛ͋ͯͯରԠ
    w6QTUSFBN΁ͷؐݩ͸·ͩͰ͢
    

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29. ൃߦ͞ΕΔΫΤϦʹҧ͍͕ʜ
    wςετ΋ΦʔϧάϦʔϯʹͳΓ
    wݕূ؀ڥ্Ͱ2"Λߦ͍ɺҰ௨Γಈ࡞ݕূΛߦͬͨ
    wϦϦʔεΛ໨લʹ٧·ΔϦΫΤετΛൃݟ
    

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30. ൃߦ͞ΕΔΫΤϦʹҧ͍͕ʜ
    wҎԼͷΑ͏ͳΫΤϦͷ݁Ռ͕ҙਤ͠ͳ͍΋ͷʹ
    wεϩʔΫΤϦʹͳͬͯ͠·ͬͨ
    wൃߦ͞ΕΔΫΤϦ·Ͱ͸֬ೝͰ͖͍ͯͳ͔ͬͨ
    

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31. मਖ਼͸͚ͩ͜͜Ͱ͍͍ͷ͔ʁ
    

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32. ࠩ෼ͷ֬ೝ͕େมʜ
    wൃߦ͞ΕΔ42-Λશͯ֬ೝ͢Δͷ͸େมʜ
    wػցతʹ൑அ͠ɺ໨ࢹͷ਺ΛݮΒͤͳ͍΋ͷ͔ʜ
    

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34. ͜ΕͰ֬ೝͰ͖Δ͔΋ʂ
    wςετ಺Ͱൃߦ͞ΕΔΫΤϦΛόʔδϣϯຖʹอଘ
    w"DUJWF3FDPSE-PH4VCTDSJCFSͰൃߦ͞ΕΔ42-Λऩू
    wલޙͷ݁ՌΛࣈ໘ͷΈͰൺֱ
    w4FUOFX <26&3:>
    ?4FUOFX <26&3:>
    
    w1SFQBSFE4UBUFNFOUͳΒ"45Λ࢖Θͳͯ͘΋͍͚Δ͔΋ʂ
    wྫ4&-&$5'30."8)&3&JE
    

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35. ΍ͬͯΈͨ
    

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37. ͪΐͬͱμϝ͔΋ʜ
    wIUUQTHJUIVCDPNISZTETRBQʢSVCZHFNTPSHʹ͸ͳ͍Ͱ͢ʣ
    wDPNQPTJUF@QSJNBSZ@LFZTͷςετͰࢼͯ͠Έͨ
    w୯ͳΔࣈ໘Ͱͷൺֱͩͱεϖʔεɺύϥϝʔλͷҧ͍Έ͍ͨͳͷ͕
    Ҿ͔͔ͬΓͩΊ͔΋
    wͦ΋ͦ΋ςετσʔλͷ༻ҙͷΫΤϦͱ͔΋ೖ͍ͬͯͨΓʜ
    w݁Ռͷ(JTU͸ͪ͜Β
    wIUUQTCJUMZP;0,,
    

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38. ࠷ޙʹ
    wԣணͤͣʹࠩ෼ΛͪΌΜͱ֬ೝ͠·͠ΐ͏
    wվΊͯ͜Ε͕ϥΠϒϥϦΛ࢖͏͜ͱͩͱೝࣝ
    w·ͩఘΊ͖Εͯͳ͍ͷͰ্ख͍ํ๏͸ͳ͍͔໛ࡧதͰ͢
    wͳʹ͔஌͍ͬͯΔਓ͕͍ͨΒڭ͍͑ͯͩ͘͞ʂʂʂ
    

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