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৺ࡈڮ
   দ෩ϗʔϧ
2. @koic w044ϓϩάϥϚʔ
   w3VCP$PQίΞνʔϜ
   wגࣜձࣾӬ࿨γεςϜϚωδϝϯτ
   &4.
   *OD 
 ΤϯδχΞϦϯάϚωʔδϟʔ
   ݉ 
 σΟεςΟϯάΠογϡυΤϯδχΞ
3. w ʰΦϒδΣΫτࢦ޲εΫϦϓτݴޠ3VCZʱ ͕ڭຊɻʰσεΫτοϓϦϑΝϨϯεʱΛ 
 ࣋ͪา͍ͯ௨ۈͯͨ͠ɻ 3VCZͱࢲ
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
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
7. 044ίϛϡχςΟͱͷڞੜΛࢧԉ 3BJMT
   044
   ύονձ #esm_oss
8. w !KVOL
   
   -SBNBίϯτϦϏϡʔλʔ
   w !4)
   
   QBSTFZίϯτϦϏϡʔλʔ
   w !LPJD
   
   1BSTFS
   HFNίϛολʔ
   w !JNB[VNJ
   
   *3#ίϛολʔ
   w !GVHBLLCO
   
   3#4ίϯτϦϏϡʔλʔ ߏจղੳثݚڀ෦ IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PMMPX6Q,JSJTIJNB3VCZIUNM /&8
9. w3VCZͱΞδϟΠϧιϑτ ΢ΣΞ։ൃΛ௨ͯ͡ίϛϡ χςΟͱ੒௕͍ͨ͠ਓ
   w೔ຊશࠃ͔Βઈࢍืूத ΤϯδχΞืूத ͜Εɺωλ͡Όͳ͍Ͱ͔͢ΒͶʁ 🗾
10. 3VCZ
    ࣌୅͔Βݱࡏͷ࠷৽։ൃ൛Ͱ͋Δ
    3VCZ
    ·Ͱɺ3VCZͷόʔδϣϯΞοϓʹ ΑͬͯͲͷΑ͏ͳΠϕϯτ͕͋Γɺ౰࣌ͷ࢓ ࣄͰͷΞϓϦέʔγϣϯ։ൃ͋Δ͍͸044 
 ΤίγεςϜͰͲͷΑ͏ͳग़དྷࣄ΍ίʔυ΁ ͷมֵ͕͔͋ͬͨԹނ஌৽Λ͓࿩͠͠·͢ɻ ࠓ೔ͷ࿩
    $'1ఏग़֓ཁΑΓ
11. ྺ࢙
12.  #FGPSF
    3BJMT 
13. w ຊ൪ϥϯλΠϜʹ3VCZ͕ೖ͍ͬͯͳ͍
    w ։ൃ؀ڥͰ͋Ε͹3VCZΛΠϯείͰ͖Δ
    w +BWBͩͱෳ਺छͷ+&&αʔόʔʹσϓϩΠ͢Δ 
 &"3ϑΝΠϧͷBQQMJDBUJPOYNMͳΜ͔ͷ 
 αʔόʔݻ༗9.-ଐੑͷฤूΛ3&9.-ͰࣗಈԽ
    w 0ODF
    8SJUF
    3VO
    "OZXIFSF΁ͷάϧʔݴޠ🤔 U%JBSZ͕ΩϥʔΞϓϦ࣌୅
14. 0.(ʹ࠾୒ʁ !LLE IUUQPCKFDUDMVCKQNMBSDINBHB[JOFIUNM
15.  "GUFS
    3BJMT 
16. w 3BJMTͱ͍͏ࠇધ͕΍͖ͬͯͨ
    w ౰࣌3BJMTͷ࠾୒͸·ͩϦεΫ
    w 3BJMTొ৔ͷ౰࣌͸TDB ff PMEͰ·ͱ΋ͳΞϓϦ ࡞ΕΔͷٙ࿭ʁ΍ͬͯΈͨΒશવͰ͖ͨ
    w ࣮ࡍͷͱ͜ΖTDB ff PME࢖͏ػձ͕ͳ͍Α͏ͳ ͓࢓ࣄͰ3VCZΛΩϝΔ࣌୅
17. w 3VCZ
    PO
    3BJMTͰ΋Γ΋ΓίʔυΛॻ͚ΔΑ ͏ʹͳͬͨ୅ΘΓʹΩϚΓ͗͢ͷΦʔόʔ ϫʔΫʹͳͬͯ͠·ͬͨࣄྫ΋͋Γ
    w ౰࣌
    ੜ࢈ੑഒ
    ͱݴΘΕ͍ͯͨཪ͸
    w 3VCZ
    PO
    3BJMTͰఆ࣌ʹؼΖ͏
    "8%X3 Ωϝա͗஫ҙใ͕ग़Δ
18. w has_manyͳͲͰݴޠ಺%4-ͷڧྗ͞Λྲྀ෍
    w Ҿ਺࠷ޙͷϋογϡͷϒϨʔεͷলུͰ 
 ΩʔϫʔυҾ਺ͬΆ͞
    ౰࣌͸=>ه๏ͷΈ
    w 3BJMTͰಋೖ͞ΕͨSymbol#to_proc͕3VCZ ʹϙʔςΟϯά͞ΕΔ 
 3BJMTʹΑΔ3VCZͷදݱྗ
19. ͸͡·ΓͷSymbol#to_proc https://github.com/rails/rails/commit/69bf71f5e9b537f88acc0d4492a057336e7305d1
20.  .FSHF
    :"37 
21. w :"37͕ೖͬͯɺ"45ϕʔεͷ௚઀ධՁث͔ Β7.ʹΑΔόΠτίʔυ࣮ߦʹͳͬͨ
    w άϦʔϯεϨου͔ΒωΠςΟϒεϨουʹ ͳͬͨ
    (7-͕͋Δ΋ͷͷ*0଴ͪͳͲͷϒ ϩοΫத͸ଞͷεϨου͕࣮ߦͰ͖Δ
    w ͭ·ΓΞοϓάϨʔυ͢Δͱ଎͘ͳΔ࣌୅ ΞϓϦίʔυԼͰͷมԽ
22. w key => valueʹՃ͑key: valueͷ)BTIه๏ಋೖ
    w ྩ࿨೥
    ࣌୅͸3VCZ
    EFW
    ʹ 
 ʮ3VCZ
    ͷ)BTIه๏ʯͱίϝϯτ͢Δ͜ͱ͕ʂ
    w ΩʔϫʔυҾ਺͕ೖͬͨͷ͸3VCZ
    ͔Β͕ͩɺϝιο υҾ਺ͷ࠷ޙͷϋογϡ͕ຊ౰ʹͦΕͬΆ͘
    w ౰࣌ࢍ൱྆࿦ͷlambdaͷ->ه๏͕ೖͬͨ
    w จࣈͱه߸ͷࣝผௐ࿨͕ઈົ ΞϓϦίʔυ͕ݱ୅తͳݟͨ໨ʹ
23. w 3VCZ
    Ҏલͷจࣈྻ͸όΠτͷγʔέϯε
    w ⤴Ͱଟ͘ͷEncoding::CompatibilityErrorͱରቂ
    w # encoding: UTF-8ϚδοΫίϝϯτʹΑΔ 
 εΫϦϓτΤϯίʔσΟϯάͷࢦఆͱ String#force_encodingͳͲʹΑΔετϦʔϜ 
 ΤϯίʔσΟϯάม׵Ͱ৐Γ੾ͬͨΑ͏ͳ
    w ͓͔͛Ͱ΁ͷΞοϓάϨʔυ͸೉͘͠ͳ͔ͬͨʁ ΞϓϦίʔυ΁ͷඇޓ׵
    աڈ࠷େ
24.  5IF
    'JSTU
    4UBCMF
     
25. w 3VCZ(FNT͕ඪ४ఴ෇ʹͳΔ
    w ruby setup.rbίϚϯυʹΑΔΠϯετʔϧ΍ 
 apt-get install railsͱ͍͏gem؅ཧͱࠞ ͥΔͳةݥͷ౫ଡ
    w ͜ͷޙ͘Β͍ʹ3BJMT
    ʹ#VOEMFS͕౷߹͞Εͯ ύοέʔδ؅ཧͷΤίγεςϜ͕҆ఆͨ͠ ܥ࠷ॳͷ҆ఆόʔδϣϯ
26.  .BOZ
    /FX
    'FBUVSFT 
27. w ΩʔϫʔυҾ਺ɺModule#prependɺ 
 γϯϘϧϦςϥϧɺEnumerable#lazyɺ 
 َӢɺTracePointɺ3F fi OFNFOUTͳͲͳͲ
    w ໿೥ӽ͠ͷΞοϓάϨʔυͰຊ౰ʹ৽ػೳ੝ Γͩ͘͞Μͩͬͨ
    w ϝλϓϩΪϟϯά΋େتͼʁ ޫͷػೳͱҋͷػೳͨ͘͞Μ
28. w εΫϦϓτΤϯίʔσΟϯάͷσϑΥϧτ͕ 65'ʹͳͬͨ
    ࠓ౓͸Ϛδίϝෆཁ εΫϦϓτΤϯίʔσΟϯάෆཁ
29.  *NQSPWFNFOUT 
30. w ΞϓϦ໘Ͱେ͖ͳมߋ͸ࢥ͍ग़ͤͳ͍ վળʹײँ
31.  4ZNCPM
    ($ 
32. w 3BJMT
    Ͱ͸4ZNCPM
    ($ඞਢͷͨΊಋೖ 
 ͞Εͨ3VCZ
    Ҏ্Λཁٻ͢Δ
    w ݫີʹ͸όάϑΟοΫεͷҎ্͕ཁ݅ վળʹײँ
33.  4FWFSBM
    6TFGVM
    4ZOUBYFT 
34. w 4BGF
    /BWJHBUJPO
    0QFSBUPS
    ΅ͬͪԋࢉࢠ 
 ʹΑΔ3BJMTΞϓϦͷtryͱtry!ͷஔ͖׵͑
    w .Ͱे෼ͳ৔߹ʹ&.Λكʹݟ͔͚Δ 4BGF
    /BWJHBUJPO
    0QFSBUPS
35. w 4RVJHHMZ
    )FSFEPDʹΑΔ3BJMTΞϓϦͷ strip_heredocͷஔ͖׵͑ 4RVJHHMZ
    )FSFEPD
36. • # frozen_string_literal: trueʹΑ ΔϚδοΫίϝϯτͰfreeze͞Εͨ String͕खʹೖΔΑ͏ʹͳͬͨ
    • RubyͷॊΒ͔͕͞ݮͬͨʁ
    w ౰࣌෺͕ٞৢ͞Ε͍ͯͨ GTUSJOH
    MJUFSBMͷಋೖ
37. 3VCZ
    ͰԆظޙͷԻࠫଡ͸ʁ https://mametter.hatenablog.com/entry/20151004/p1
38. 3BJMTͱGTUSJOH
    MJUFSBMT https://github.com/rails/rails/pull/30342
39.  *OUFHFS
    6OJ fi DBUJPO 
40. ܯࠂͷ઒͕ྲྀΕΔ w 3VCZ
    ͷͱ͖ͱҟͳΓɺ·ͣඇޓ׵΁ͷ 
 ඇਪ঑ܯࠂ͞Ε͍ͯͨ
    w 3VCZ
    EFWΛ࢖͏͜ͱͰϦϦʔε࣌ ʹ઒ͷ൙ཞ͕ݮΔΑ͏ʹύονΛૹ͍ͬͯͨ
41. 044ͱ೔ৗ w HIR
    
    HFNTSD ؅ཧϦϙδτϦ ͷඇਪ঑ܯࠂ΁ ύονΛग़͢Τί γεςϜࢀՃͷ ͖͔͚ͬʹͳΔ
42.  *NQSPWFNFOUT 
43. w rescue
    
    else
    
    ensure
    ͕
    do
    
    end 
 ϒϩοΫʹॻ͚ΔΑ͏ʹͳͬͨͷ͸ॻ͖৺஍ ྑ͍ վળʹײँ
44.  .+*5
    
    3VCZ7."45 
45. w ͍ͪ͹Μ࣮༻໘ͰӨڹ͍ͯͦ͠͏
    w 3VCZΛΠϯετʔϧͨ͠ޙʹ 
 gem i bundlerͱ͍͏ఆܕّྱ͕ෆཁʹ #VOEMFS͕ඪ४ఴ෇͞ΕΔ
46. w .+*5͕ಋೖ͞Ε͕ͨɺ3BJMTΞϓϦέʔγϣ ϯͰͷ࣮༻ࣄྫ͸Չฉʹͯ͠ฉ͔ͣͩͬͨ
    w 3VCZ7."CTUSBDU4ZOUBY5SFFʹΪϟϯά ͕ΞϓϦ৔֎Ͱ੝Γ্͕ΓΛݟ͍ͤͯͨ
    w ΞϓϦͷ࣮༻໘Ͱ͸FOEMFTT
    SBOHFͳͲͷ 
 ৽ػೳΛ࢖͑ΔΑ͏ʹͳͬͨ ͍Ζ͍Ζͱ࣮ݧతͳ೩ྉ౤Լ
47.  4VQFS
    )BSE
    .PEF
    3VCZ 
48. LXBSHT෼཭ w ͍͍ͩͨฐࣾͷ ύονձʹग़ͯͨ ਓͷपลͰΤί γεςϜଆͷ LXBSHTͷ෼཭ͷ ରԠΛਐΊ͍ͯͨ ҹ৅
49. w OVNCFSFE
    QBSBNFUFSͷελΠϧੋඇʹͭ ͍ͯʮ3VCZ͸8FCΛ࡞ΔͨΊͷݴޠͰ͸ 
 ͳ͘εΫϦϓτݴޠʯͱ͍͏ͷ͸ͳΔ΄Ͳ
    w ݸਓతʹ͸อक͢Δίʔυʹ͸໊લ͕͍ͭͯ ͍ͯ΋Β͍͍͚ͨΕͲɺॻ͖ࣺͯ΍εϥΠυ ෼ྔΛݮΒ͢ͷʹศར ύλʔϯϚον΍φϯύϥ
50.  "CTUSBDU
    *OUFSQSFUBUJPO 
51. CVHTSVCZMBOHPSHJTTVFT 3VCZݴޠʹ͍͔ͳΔܗͰ͋Εܕએݴ ΍ܕ஫ऍΛಋೖ͢Δͭ΋Γ͸͋Γ·ͤΜ
52. w ܕΛॻ͔ͣʹɺܕͷϝϦοτΛڗड͍ͨ͠
    w 3#4ͩͱΞϓϦͰ·ͩܕΛॻ͘ίετ͕ߴ͘ ࠳ં͢ΔͷΛݟ͔͚Δ
    %3:Ͱͳ͘ਏ͍
    w 3#*ͷಋೖίʔυ͸΋͸΍3VCZʹݟ͑ͣਏ͍
    w ྫ͑͹3#4͕πʔϧؒͷཪଆͷ௿ϨΠϠʔݴޠ ʹͳΔະདྷ͸ʁ ந৅ղऍͱ͍͏ୈͷಓ
53.  :+*5 
54. w .+*5ʹՃ͑ͯ-##7ʹج͍ͮͨ4IPQJGZ੡ +*5Ͱ͋Δ:+*5͕ಋೖ͞Εͨ
    w 3BJMTΞϓϦͰ༗ޮԽͨ͠ޮՌଌఆ͕࿩୊ʹ ͳΔ͜ͱ͕͋Δ͚ΕͲ-41Ͱ΋ΫϥΠΞϯτ ͔ΒRUBY_YJIT_ENABLED=trueͯ͠ΈΑ͏
    w FH
    WTDPEFSVCPDPQ
    TUFFQWTDPEF :+*5
55.  3VTU
    :+*5
    
    8"4. 
56. w :+*5ͷ࣮૷͕3VTUʹͳͬͨ
    w 3VTU
    :+*5ͷϏϧυͰࠔΔͱ͍͏࿩ΛपลͰ ฉ͔ͳ͍
    w %0$,&3
    0''*$*"-
    *."(&͕࢖ΘΕ͍ͯΔ ͷ͔ɺ3VTUΠϯετʔϧ͸ڭཆͳͷ͔ɺ :+*5ແޮͰͷϏϧυͱ͍ͯ͠Δͷ͔ 3VTU
    :+*5
57. w ࠷ۙ5SZ
    3VCZͷσϑΥϧτ͕0QBM͔Β 8"4.ʹͳ͍ͬͯͨ
    ΑΓྑ͍ೖ໳ʹ 8FC"TTFNCMZ
    8"4. IUUQTUSZSVCZMBOHPSHQMBZHSPVOE
58. w ਖ਼نදݱ·ΘΓվળʹΑΔ3F%P4߈ܸରࡦ ͸࣮༻త
    w 3FBE
    POMZͷStruct.new૬౰ͱͯ͠ Data.define͕ಋೖ͞Εͨ
    w 3BDUPSͷར༻ʹؔΘ͍͖ͬͯͦ͏ ͷݸਓతਪ͠
59.  6OJWFSTBM
    1BSTFS
    3BDJOH 
60. -SBNB
    BOE
    :"31 6OJWFSTBM
    1BSTFS೼ݖ૪ୣͷηϝϯτ
61. w !KVOL
    
    -SBNBίϯτϦϏϡʔλʔ
    w !4)
    
    QBSTFZίϯτϦϏϡʔλʔ
    w !LPJD
    
    1BSTFS
    HFNίϛολʔ
    w !JNB[VNJ
    
    *3#ίϛολʔ
    w !GVHBLLCO
    
    3#4ίϯτϦϏϡʔλʔ ߏจղੳثݚڀ෦ IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT'PMMPX6Q,JSJTIJNB3VCZIUNM
62. "CPWF
    "MM
    .BLF
    *U
    'VO