Rubyの標準添付ライブラリを開発する

Nextbeat Tech Bar：第一回ライブラリ開発について考える会 (https://nextbeat.connpass.com/event/312789/)

Transcript

1. 3VCZͷ
   ඪ४ఴ෇ϥΠϒϥϦΛ։ൃ͢Δ দຊफଠ࿠
   !TPVUBSP
2. !TPVUBSP w 3VCZίϛολʔ
   w 3VCZͷܕΛ΍͍ͬͯΔ
   w 4UFFQ
   w 3#4
   w גࣜձࣾλΠϛʔ দຊफଠ࿠
3. 3VCZͷඪ४ϥΠϒϥϦ
4. 3VCZͷඪ४ϥΠϒϥϦ w ৄ͘͠͸3VCZ,BJHJ
   ͷ)JSPTIJ
   4)*#"5"ͷτʔΫΛݟͯ
   w IUUQTSVCZLBJHJPSHQSFTFOUBUJPOTITCUIUNMEBZ
   
   w πʔϧ
   w ෼ྨ
5. πʔϧ w HFN
   w 3VCZ༻ͷϥΠϒϥϦͷ͜ͱ
   w 3VCZ(FN
   w HFNΛΠϯετʔϧ͢Δπʔϧɺϗετ͍ͯ͠ΔαʔϏε
   w #VOEMFS
   w ͲͷHFNΛΠϯετʔϧ͢Δ͔ΛϓϩδΣΫτຖʹ؅ཧ͢Δπʔϧ
6. $ gem install rbs ↑ rbsͱ͍͏gemʢϥΠϒϥϦʣͱͦͷґଘΛΠϯετʔϧ $ bundle install ↑ Gemfileͱ͍͏ϑΝΠϧͷઃఆʹैͬͯɺϓϩδΣΫτ͕ґଘ͢ΔgemΛΠϯετʔϧ
7. 
   #VOEMFSͷϦϦʔε )JSPTIJ
   4)*#"5"
   3VCZ,BJHJ
    
   .BWFOͷϦϦʔε
8. ඪ४ఴ෇ϥΠϒϥϦͷ෼ྨ w ૊ΈࠐΈ
   FNCFEEFE
   w 4UBOEBSE
   MJCSBSZ
   
   HFNʹͳ͍ͬͯͳ͍ϥΠϒϥϦͨͪ
   w %FGBVMU
   HFNT
   
   ࠷ॳ͔ΒΠϯετʔϧ͞Ε͍ͯΔHFN
   w #VOEMFE
   HFNT
   
   ࠷ॳ͔ΒΠϯετʔϧ͞Ε͍ͯΔHFN
   🤔
9. )JSPTIJ
   4)*#"5"
   3VCZ,BJHJ
   
10. IUUQTHJUIVCDPNSVCZSVCZCMPCBEEEEFDGDDEFFEFGHFNTCVOEMFE@HFNT
11. SCT
    HFNͷ։ൃ
12. SCT
    HFNͷ։ൃ w 3VCZ
    ͔Β#VOEMFE
    HFNͷҰͭ
    w 3VCZͱ͸ผͷϦϙδτϦͰɺ3VCZ
    DPSFͱ͸ಠཱͯ͠։ൃΛߦ͍ɺ3VCZ
    DPSFͱ͸ಠཱͯ͠৽͍͠όʔδϣϯΛϦϦʔε͠ɺ3VCZΛΠϯετʔϧ͢Δ ͱಉ࣌ʹΠϯετʔϧ͞ΕΔ
13. ͦ΋ͦ΋3#4ͱ͸ w 3VCZϓϩάϥϜͷܕΛදݱ͢Δ ͨΊͷݴޠͱͦͷॲཧΛ͢Δͨ ΊͷϥΠϒϥϦ
    w IUUQTHJUIVCDPNSVCZSCT
    w SCT
    HFNͷதʹ͸ɺ3VCZͷ૊Έ ࠐΈϥΠϒϥϦͷܕఆ͕ٛೖͬ ͍ͯΔ
14. 3#4ͷλʔήοτ w 3#4͸·ͩ։ൃ్தͳͷͰɺ3VCZΑΓ΋සൟʹϦϦʔε͞ΕΔ
    w ͦͷͨΊ࠷৽ͷϦϦʔε൛3VCZ
    
    Λલఏͱͯ͠։ൃ͞Ε͍ͯΔ
    w 3#4ʹؚ·Ε͍ͯΔඪ४ϥΠϒϥϦͷܕ͸ϦϦʔε൛ͷ3VCZલఏ
    w ͞Βʹɺ։ൃ൛ͷ3VCZ
    
    ʹ΋3#4͸ؚ·ΕΔ
    w ͭ·Γʜʜʁʁʁ
15. ·͋·͋յΕΔ
16. ͳΜͰյΕΔʁ w 3#4ͷ૊ΈࠐΈϥΠϒϥϦͷܕΛ֬ೝ͢Δςετ͕յΕΔ
    w SVCZSVCZϦϙδτϦͰ͸$*ͰCVOEMFE
    HFNͷςετΛ࣮ߦ͢ΔΑ͏ʹͳ ͍ͬͯΔ
    w ϝιου͕ফ͑ͨΓɺҾ਺ͷॲཧ͕ඍົʹมΘͬͨΓ͢Δ
    w ී௨ͷ3VCZϓϩάϥϜʹ͸Өڹ͕ͳ͍͕ɺ3#4ͷςετʹ͸Өڹ͢Δ
17. ྫ
    *0XBJUͷฦΓ஋ͷܕ͕มΘͬͨ w self | bool | nil
    ͔Β
    Integer | false | nil
    ʹͳͬͨ
18. ͔ͳΓΊΜͲ͍͘͞ 3#4ͷςετΛमਖ਼͢Δ
    w 3#4ͷܕఆٛ͸։ൃ൛͕ϦϦʔε͞Ε͔ͯΒߋ৽͢Δ
    ৽͍͠3#4ΛϦϦʔε͢Δ
    ৽͘͠ϦϦʔεͨ͠3#4Λ࢖ͬͯ3VCZͷ$*Λճ͢
    ௚ͬͯͳ͔ͬͨΒ͔Β΍Γ௚͠
19. ରࡦ w SCT
    HFNΛϦϦʔε͠ͳͯ͘΋3VCZͷ$*ͰςετͰ͖ΔΑ͏ʹ͢Δ
    w ίϛοτΛॻ͍͓ͯ͘ͱɺͦΕΛ࢖ͬͯςετ͢Δ
    w 3VCZͷ$*͕௚Δ͜ͱΛ֬ೝ͔ͯ͠ΒSCT
    HFNΛϦϦʔε͢Δ
20. ରࡦ w SVCZSVCZͷதʹ͋Δ
    rbs_skip_tests
    Λฤू͢ΔͱɺSCT
    HFNͷςετ ΛεΩοϓͰ͖ΔΑ͏ʹͨ͠
    w SCT
    HFNͷमਖ਼Λ଴ͨͣʹSVCZSVCZͷ$*͕௚ΔΑ͏ʹͳͬͨ
21. ·ͱΊ w ·͋·͋େม
    w ։ൃ൛ͷ3VCZͱϦϦʔε൛ͷ3VCZΛࠞͥΔͱ͜Ζʹແཧ͕͋Δ
    w ʮ҆ఆ͍ͯ͠ͳ͍͔Β3VCZΑΓ΋ߴස౓ͰϦϦʔε͍ͨ͠ʯͱ͍͏ཁ͕݅ ࠔ೉͞Λ૿͍ͯ͠Δ
    w ݹ͔͘Β͋ΔϥΠϒϥϦΛHFNʹͨ͠΍ͭ͸ɺރΕ͍ͯΔͷͰͦΜͳʹେม Ͱ͸ͳͦ͞͏