A Practitioner's Journey from Ruby 1.8 to Present

大阪Ruby会議03 (https://regional.rubykaigi.org/osaka03/)

Transcript

1. ,PJDIJ*50&4. *OD
   A Practitioner's Journey
   from Ruby 1.8 to Present
   Have you been able to craft your job to be fun?
   େࡕ3VCZձٞ
   4BU
   
   ϋʔτϯϗςϧ৺ࡈڮদ෩ϗʔϧ
   

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2. @koic
   w044ϓϩάϥϚʔ
   w3VCP$PQίΞνʔϜ
   wגࣜձࣾӬ࿨γεςϜϚωδϝϯτ &4. *OD
   
   

   ΤϯδχΞϦϯάϚωʔδϟʔ݉
   

   σΟεςΟϯάΠογϡυΤϯδχΞ
   

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3. w ʰΦϒδΣΫτࢦ޲εΫϦϓτݴޠ3VCZʱ
   ͕ڭຊɻʰσεΫτοϓϦϑΝϨϯεʱΛ
   

   ࣋ͪา͍ͯ௨ۈͯͨ͠ɻ
   3VCZͱࢲ
   

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5. େࡕ3VCZձٞͷ&4.ϝϯόʔ
   4
   Q
   FBLFS
   @junk0612
   4
   Q
   FBLFS
   @koic
   -5
   @maimux2x
   4
   UB
   f
   @haruguchiyuma
   "
   UUFOEFF
   @fugakkbn
   "
   UUFOEFF
   @nsgc
   "
   UUFOEFF
   @kakutani
   ϑΣϩʔ
   

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6. w ೔ຊ3VCZΧϯϑΝϨϯε͔Βࠓ೥ͷ
   3VCZ,BJHJ·Ͱ͢΂ͯεϙϯαʔͯ͠Δ
   

   ੈք།Ұͷاۀ ެืͷͳ͍ আ͘
   
   w 3VCZ,BJHJ -5
   
   -5
   ొஃഐग़
   w ೔ຊࠃ಺Ͱ͸34QFDͱ)BNMॳظͷಋೖاۀ
   3VCZͱ&4. *OD
   

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7. 044ίϛϡχςΟͱͷڞੜΛࢧԉ
   3BJMT044ύονձ
   #esm_oss
   

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8. w !KVOL-SBNBίϯτϦϏϡʔλʔ
   w !4)QBSTFZίϯτϦϏϡʔλʔ
   w !LPJD1BSTFSHFNίϛολʔ
   w !JNB[VNJ*3#ίϛολʔ
   w !GVHBLLCO3#4ίϯτϦϏϡʔλʔ
   ߏจղੳثݚڀ෦
   IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PMMPX6Q,JSJTIJNB3VCZIUNM
   /&8
   

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9. w3VCZͱΞδϟΠϧιϑτ
   ΢ΣΞ։ൃΛ௨ͯ͡ίϛϡ
   χςΟͱ੒௕͍ͨ͠ਓ
   w೔ຊશࠃ͔Βઈࢍืूத
   ΤϯδχΞืूத
   ͜Εɺωλ͡Όͳ͍Ͱ͔͢ΒͶʁ
   🗾
   

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10. 3VCZ࣌୅͔Βݱࡏͷ࠷৽։ൃ൛Ͱ͋Δ
    3VCZ·Ͱɺ3VCZͷόʔδϣϯΞοϓʹ
    ΑͬͯͲͷΑ͏ͳΠϕϯτ͕͋Γɺ౰࣌ͷ࢓
    ࣄͰͷΞϓϦέʔγϣϯ։ൃ͋Δ͍͸044
    

    ΤίγεςϜͰͲͷΑ͏ͳग़དྷࣄ΍ίʔυ΁
    ͷมֵ͕͔͋ͬͨԹނ஌৽Λ͓࿩͠͠·͢ɻ
    ࠓ೔ͷ࿩ $'1ఏग़֓ཁΑΓ
    
    

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11. ྺ࢙
    

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12. 
    #FGPSF3BJMT
    
    

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13. w ຊ൪ϥϯλΠϜʹ3VCZ͕ೖ͍ͬͯͳ͍
    w ։ൃ؀ڥͰ͋Ε͹3VCZΛΠϯείͰ͖Δ
    w +BWBͩͱෳ਺छͷ+&&αʔόʔʹσϓϩΠ͢Δ
    

    &"3ϑΝΠϧͷBQQMJDBUJPOYNMͳΜ͔ͷ
    

    αʔόʔݻ༗9.-ଐੑͷฤूΛ3&9.-ͰࣗಈԽ
    w 0ODF8SJUF3VO"OZXIFSF΁ͷάϧʔݴޠ🤔
    U%JBSZ͕ΩϥʔΞϓϦ࣌୅
    

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14. 0.(ʹ࠾୒ʁ
    !LLE
    IUUQPCKFDUDMVCKQNMBSDINBHB[JOFIUNM
    

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15. 
    "GUFS3BJMT
    
    

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16. w 3BJMTͱ͍͏ࠇધ͕΍͖ͬͯͨ
    w ౰࣌3BJMTͷ࠾୒͸·ͩϦεΫ
    w 3BJMTొ৔ͷ౰࣌͸TDB
    ff
    PMEͰ·ͱ΋ͳΞϓϦ
    ࡞ΕΔͷٙ࿭ʁ΍ͬͯΈͨΒશવͰ͖ͨ
    w ࣮ࡍͷͱ͜ΖTDB
    ff
    PME࢖͏ػձ͕ͳ͍Α͏ͳ
    ͓࢓ࣄͰ3VCZΛΩϝΔ࣌୅
    

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17. w 3VCZPO3BJMTͰ΋Γ΋ΓίʔυΛॻ͚ΔΑ
    ͏ʹͳͬͨ୅ΘΓʹΩϚΓ͗͢ͷΦʔόʔ
    ϫʔΫʹͳͬͯ͠·ͬͨࣄྫ΋͋Γ
    w ౰࣌ੜ࢈ੑഒͱݴΘΕ͍ͯͨཪ͸
    w 3VCZPO3BJMTͰఆ࣌ʹؼΖ͏"8%X3
    Ωϝա͗஫ҙใ͕ग़Δ
    

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18. w has_manyͳͲͰݴޠ಺%4-ͷڧྗ͞Λྲྀ෍
    w Ҿ਺࠷ޙͷϋογϡͷϒϨʔεͷলུͰ
    

    ΩʔϫʔυҾ਺ͬΆ͞ ౰࣌͸=>ه๏ͷΈ
    
    w 3BJMTͰಋೖ͞ΕͨSymbol#to_proc͕3VCZ
    ʹϙʔςΟϯά͞ΕΔ
    

    3BJMTʹΑΔ3VCZͷදݱྗ
    

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19. ͸͡·ΓͷSymbol#to_proc
    https://github.com/rails/rails/commit/69bf71f5e9b537f88acc0d4492a057336e7305d1
    

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20. 
    .FSHF:"37
    
    

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21. w :"37͕ೖͬͯɺ"45ϕʔεͷ௚઀ධՁث͔
    Β7.ʹΑΔόΠτίʔυ࣮ߦʹͳͬͨ
    w άϦʔϯεϨου͔ΒωΠςΟϒεϨουʹ
    ͳͬͨ (7-͕͋Δ΋ͷͷ*0଴ͪͳͲͷϒ
    ϩοΫத͸ଞͷεϨου͕࣮ߦͰ͖Δ
    
    w ͭ·ΓΞοϓάϨʔυ͢Δͱ଎͘ͳΔ࣌୅
    ΞϓϦίʔυԼͰͷมԽ
    

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22. w key => valueʹՃ͑key: valueͷ)BTIه๏ಋೖ
    w ྩ࿨೥ ࣌୅͸3VCZEFW
    ʹ
    

    ʮ3VCZͷ)BTIه๏ʯͱίϝϯτ͢Δ͜ͱ͕ʂ
    w ΩʔϫʔυҾ਺͕ೖͬͨͷ͸3VCZ͔Β͕ͩɺϝιο
    υҾ਺ͷ࠷ޙͷϋογϡ͕ຊ౰ʹͦΕͬΆ͘
    w ౰࣌ࢍ൱྆࿦ͷlambdaͷ->ه๏͕ೖͬͨ
    w จࣈͱه߸ͷࣝผௐ࿨͕ઈົ
    ΞϓϦίʔυ͕ݱ୅తͳݟͨ໨ʹ
    

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23. w 3VCZҎલͷจࣈྻ͸όΠτͷγʔέϯε
    w ⤴Ͱଟ͘ͷEncoding::CompatibilityErrorͱରቂ
    w # encoding: UTF-8ϚδοΫίϝϯτʹΑΔ
    

    εΫϦϓτΤϯίʔσΟϯάͷࢦఆͱ
    String#force_encodingͳͲʹΑΔετϦʔϜ
    

    ΤϯίʔσΟϯάม׵Ͱ৐Γ੾ͬͨΑ͏ͳ
    w ͓͔͛Ͱ΁ͷΞοϓάϨʔυ͸೉͘͠ͳ͔ͬͨʁ
    ΞϓϦίʔυ΁ͷඇޓ׵ աڈ࠷େ
    
    

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24. 
    5IF'JSTU4UBCMF
    
    

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25. w 3VCZ(FNT͕ඪ४ఴ෇ʹͳΔ
    w ruby setup.rbίϚϯυʹΑΔΠϯετʔϧ΍
    

    apt-get install railsͱ͍͏gem؅ཧͱࠞ
    ͥΔͳةݥͷ౫ଡ
    w ͜ͷޙ͘Β͍ʹ3BJMTʹ#VOEMFS͕౷߹͞Εͯ
    ύοέʔδ؅ཧͷΤίγεςϜ͕҆ఆͨ͠
    ܥ࠷ॳͷ҆ఆόʔδϣϯ
    

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26. 
    .BOZ/FX'FBUVSFT
    
    

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27. w ΩʔϫʔυҾ਺ɺModule#prependɺ
    

    γϯϘϧϦςϥϧɺEnumerable#lazyɺ
    

    َӢɺTracePointɺ3F
    fi
    OFNFOUTͳͲͳͲ
    w ໿೥ӽ͠ͷΞοϓάϨʔυͰຊ౰ʹ৽ػೳ੝
    Γͩ͘͞Μͩͬͨ
    w ϝλϓϩΪϟϯά΋େتͼʁ
    ޫͷػೳͱҋͷػೳͨ͘͞Μ
    

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28. w εΫϦϓτΤϯίʔσΟϯάͷσϑΥϧτ͕
    65'ʹͳͬͨ ࠓ౓͸Ϛδίϝෆཁ
    
    εΫϦϓτΤϯίʔσΟϯάෆཁ
    

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29. 
    *NQSPWFNFOUT
    
    

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30. w ΞϓϦ໘Ͱେ͖ͳมߋ͸ࢥ͍ग़ͤͳ͍
    վળʹײँ
    

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31. 
    4ZNCPM($
    
    

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32. w 3BJMTͰ͸4ZNCPM($ඞਢͷͨΊಋೖ
    

    ͞Εͨ3VCZҎ্Λཁٻ͢Δ
    w ݫີʹ͸όάϑΟοΫεͷҎ্͕ཁ݅
    վળʹײँ
    

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33. 
    4FWFSBM6TFGVM4ZOUBYFT
    
    

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34. w 4BGF/BWJHBUJPO0QFSBUPS ΅ͬͪԋࢉࢠ
    
    

    ʹΑΔ3BJMTΞϓϦͷtryͱtry!ͷஔ͖׵͑
    w .Ͱे෼ͳ৔߹ʹ&.Λكʹݟ͔͚Δ
    4BGF/BWJHBUJPO0QFSBUPS
    

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35. w 4RVJHHMZ)FSFEPDʹΑΔ3BJMTΞϓϦͷ
    strip_heredocͷஔ͖׵͑
    4RVJHHMZ)FSFEPD
    

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36. • # frozen_string_literal: trueʹΑ
    ΔϚδοΫίϝϯτͰfreeze͞Εͨ
    String͕खʹೖΔΑ͏ʹͳͬͨ
    • RubyͷॊΒ͔͕͞ݮͬͨʁ
    w ౰࣌෺͕ٞৢ͞Ε͍ͯͨ
    GTUSJOHMJUFSBMͷಋೖ
    

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37. 3VCZͰԆظޙͷԻࠫଡ͸ʁ
    https://mametter.hatenablog.com/entry/20151004/p1
    

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38. 3BJMTͱGTUSJOHMJUFSBMT
    https://github.com/rails/rails/pull/30342
    

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39. 
    *OUFHFS6OJ
    fi
    DBUJPO
    
    

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40. ܯࠂͷ઒͕ྲྀΕΔ
    w 3VCZͷͱ͖ͱҟͳΓɺ·ͣඇޓ׵΁ͷ
    

    ඇਪ঑ܯࠂ͞Ε͍ͯͨ
    w 3VCZEFWΛ࢖͏͜ͱͰϦϦʔε࣌
    ʹ઒ͷ൙ཞ͕ݮΔΑ͏ʹύονΛૹ͍ͬͯͨ
    

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41. 044ͱ೔ৗ
    w HIRHFNTSD
    ؅ཧϦϙδτϦ
    ͷඇਪ঑ܯࠂ΁
    ύονΛग़͢Τί
    γεςϜࢀՃͷ
    ͖͔͚ͬʹͳΔ
    

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42. 
    *NQSPWFNFOUT
    
    

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43. w rescueelseensure͕doend
    

    ϒϩοΫʹॻ͚ΔΑ͏ʹͳͬͨͷ͸ॻ͖৺஍
    ྑ͍
    վળʹײँ
    

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44. 
    .+*53VCZ7."45
    
    

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45. w ͍ͪ͹Μ࣮༻໘ͰӨڹ͍ͯͦ͠͏
    w 3VCZΛΠϯετʔϧͨ͠ޙʹ
    

    gem i bundlerͱ͍͏ఆܕّྱ͕ෆཁʹ
    #VOEMFS͕ඪ४ఴ෇͞ΕΔ
    

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46. w .+*5͕ಋೖ͞Ε͕ͨɺ3BJMTΞϓϦέʔγϣ
    ϯͰͷ࣮༻ࣄྫ͸Չฉʹͯ͠ฉ͔ͣͩͬͨ
    w 3VCZ7."CTUSBDU4ZOUBY5SFFʹΪϟϯά
    ͕ΞϓϦ৔֎Ͱ੝Γ্͕ΓΛݟ͍ͤͯͨ
    w ΞϓϦͷ࣮༻໘Ͱ͸FOEMFTTSBOHFͳͲͷ
    

    ৽ػೳΛ࢖͑ΔΑ͏ʹͳͬͨ
    ͍Ζ͍Ζͱ࣮ݧతͳ೩ྉ౤Լ
    

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47. 
    4VQFS)BSE.PEF3VCZ
    
    

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48. LXBSHT෼཭
    w ͍͍ͩͨฐࣾͷ
    ύονձʹग़ͯͨ
    ਓͷपลͰΤί
    γεςϜଆͷ
    LXBSHTͷ෼཭ͷ
    ରԠΛਐΊ͍ͯͨ
    ҹ৅
    

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49. w OVNCFSFEQBSBNFUFSͷελΠϧੋඇʹͭ
    ͍ͯʮ3VCZ͸8FCΛ࡞ΔͨΊͷݴޠͰ͸
    

    ͳ͘εΫϦϓτݴޠʯͱ͍͏ͷ͸ͳΔ΄Ͳ
    w ݸਓతʹ͸อक͢Δίʔυʹ͸໊લ͕͍ͭͯ
    ͍ͯ΋Β͍͍͚ͨΕͲɺॻ͖ࣺͯ΍εϥΠυ
    ෼ྔΛݮΒ͢ͷʹศར
    ύλʔϯϚον΍φϯύϥ
    

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50. 
    "CTUSBDU*OUFSQSFUBUJPO
    
    

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51. CVHTSVCZMBOHPSHJTTVFT
    3VCZݴޠʹ͍͔ͳΔܗͰ͋Εܕએݴ
    ΍ܕ஫ऍΛಋೖ͢Δͭ΋Γ͸͋Γ·ͤΜ
    

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52. w ܕΛॻ͔ͣʹɺܕͷϝϦοτΛڗड͍ͨ͠
    w 3#4ͩͱΞϓϦͰ·ͩܕΛॻ͘ίετ͕ߴ͘
    ࠳ં͢ΔͷΛݟ͔͚Δ %3:Ͱͳ͘ਏ͍
    
    w 3#*ͷಋೖίʔυ͸΋͸΍3VCZʹݟ͑ͣਏ͍
    w ྫ͑͹3#4͕πʔϧؒͷཪଆͷ௿ϨΠϠʔݴޠ
    ʹͳΔະདྷ͸ʁ
    ந৅ղऍͱ͍͏ୈͷಓ
    

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53. 
    :+*5
    
    

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54. w .+*5ʹՃ͑ͯ-##7ʹج͍ͮͨ4IPQJGZ੡
    +*5Ͱ͋Δ:+*5͕ಋೖ͞Εͨ
    w 3BJMTΞϓϦͰ༗ޮԽͨ͠ޮՌଌఆ͕࿩୊ʹ
    ͳΔ͜ͱ͕͋Δ͚ΕͲ-41Ͱ΋ΫϥΠΞϯτ
    ͔ΒRUBY_YJIT_ENABLED=trueͯ͠ΈΑ͏
    w FHWTDPEFSVCPDPQ TUFFQWTDPEF
    :+*5
    

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55. 
    3VTU:+*58"4.
    
    

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56. w :+*5ͷ࣮૷͕3VTUʹͳͬͨ
    w 3VTU:+*5ͷϏϧυͰࠔΔͱ͍͏࿩ΛपลͰ
    ฉ͔ͳ͍
    w %0$,&30''*$*"-*."(&͕࢖ΘΕ͍ͯΔ
    ͷ͔ɺ3VTUΠϯετʔϧ͸ڭཆͳͷ͔ɺ
    :+*5ແޮͰͷϏϧυͱ͍ͯ͠Δͷ͔
    3VTU:+*5
    

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57. w ࠷ۙ5SZ3VCZͷσϑΥϧτ͕0QBM͔Β
    8"4.ʹͳ͍ͬͯͨ ΑΓྑ͍ೖ໳ʹ
    
    8FC"TTFNCMZ 8"4.
    
    IUUQTUSZSVCZMBOHPSHQMBZHSPVOE
    

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58. w ਖ਼نදݱ·ΘΓվળʹΑΔ3F%P4߈ܸରࡦ
    ͸࣮༻త
    w 3FBEPOMZͷStruct.new૬౰ͱͯ͠
    Data.define͕ಋೖ͞Εͨ
    w 3BDUPSͷར༻ʹؔΘ͍͖ͬͯͦ͏
    ͷݸਓతਪ͠
    

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59. 
    6OJWFSTBM1BSTFS3BDJOH
    
    
    

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60. -SBNBBOE:"31
    6OJWFSTBM1BSTFS೼ݖ૪ୣͷηϝϯτ
    

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61. w !KVOL-SBNBίϯτϦϏϡʔλʔ
    w !4)QBSTFZίϯτϦϏϡʔλʔ
    w !LPJD1BSTFSHFNίϛολʔ
    w !JNB[VNJ*3#ίϛολʔ
    w !GVHBLLCO3#4ίϯτϦϏϡʔλʔ
    ߏจղੳثݚڀ෦
    IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PMMPX6Q,JSJTIJNB3VCZIUNM
    

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62. "CPWF"MM .BLF*U'VO
    

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