Woman Tech Terrace 2019

https://wtt.cyberagent.group/
https://cyberagent.connpass.com/event/124932/

Transcript

1. How people build software
   !
   "
   ޮՌతͳGitϦϙδτϦར༻ͷखҾ͖
   @pnsk
   

   View Slide

2. How people build software
   !
   Introduction
   2
   !
   Junko Suzuki
   Enterprise Support Engineer
   @ pnsk
   

   View Slide

3. How people build software
   !
   GitHub
   3
   !
   

   View Slide

4. How people build software
   ! 4
   

   View Slide

5. How people build software
   ! 5
   ίϛϡχέʔγϣϯ͸ΦϯϥΠϯ͕جຊ
   νϟοτ ϏσΦνϟοτ
   GitHub
   

   View Slide

6. How people build software
   ! 6
   ఆظతʹΦϑϥΠϯͰू·Δػձ΋͋Δ
   

   View Slide

7. How people build software
   ! 7
   https://github.com
   

   View Slide

8. How people build software
   ! 8
   

   View Slide

9. How people build software
   !
   Enterprise Support Engineer
   9
   !
   

   View Slide

10. How people build software
    ! 10
    Enterpriseϓϥϯ
    

    View Slide

11. How people build software
    ! 11
    GitHub Enterprise Serverɹ: ΦϯϓϨϛε൛
    GitHub Enterprise Cloudɹ : SaaS൛
    GitHub Enterprise
    ΤϯυϢʔβ͔Β͸GitHub.comͱಉ͡
    ؅ཧ໘͸Businessར༻ʹয఺
    

    View Slide

12. How people build software
    ! 12
    GitHub EnterpriseͷςΫχΧϧαϙʔτΛ
    ͍ͯ͠Δͷ͕Enterprise Support Engineer
    

    View Slide

13. How people build software
    ! 13
    • ΞδΞ
    • Ϥʔϩού
    • ΞϝϦΧ
    λΠϜκʔϯʹ෼͔ΕͯνʔϜ͕ߏ੒͞Ε͍ͯΔ
    

    View Slide

14. How people build software
    !
    ޮ཰తͳGitϦϙδτϦར༻
    ͷखҾ͖
    14
    !
    

    View Slide

15. How people build software
    ! 15
    GitϦϙδτϦ
    ༷ʑͳछྨͷϑΝΠϧΛόʔδϣϯ؅ཧͰ͖Δ
    .txt
    .rb
    .sql
    .png
    .gif
    

    View Slide

16. How people build software
    ! 16
    GitΦϒδΣΫτ
    • “blob”: ϑΝΠϧͷ಺༰
    • “tree” : σΟϨΫτϦͷ৘ใ
    • “commit” : ίϛοτͷ৘ใ
    • “tag” : λά৘ใ
    ѹॖͯ͠อଘ
    

    View Slide

17. How people build software
    ! 17
    “blob”ΦϒδΣΫτ
    • ςΩετϑΝΠϧ͸ࠩ෼
    • όΠφϦϑΝΠϧ͸શσʔλ
    ༰ྔઅ໿ͱޮ཰ͷόϥϯε
    

    View Slide

18. How people build software
    ! 18
    ςΩετϑΝΠϧͷࠩ෼֨ೲ
    • PackfileͱΠϯσοΫεϑΝΠϧ
    ɹ→ git gc, git push, git fetch, etc.ɹ
    .pack .idx
    

    View Slide

19. How people build software
    ! 19
    GitHubͰ؅ཧ͢ΔϑΝΠϧͷ͓͢͢Ί
    • σʔλϕʔεͷμϯϓϑΝΠϧ
    • ϩάϑΝΠϧ
    GitHubͰ؅ཧ͢ΔͷΛਪ঑͠ͳ͍΋ͷ
    • ਪ঑ϦϙδτϦαΠζ্ݶɿ1GB
    • ϑΝΠϧαΠζ্ݶɿ100MB
    

    View Slide

20. How people build software
    ! 20
    ϦϙδτϦαΠζ΍ɺϑΝΠϧͷαΠζʹدͬͯ͸ɺ
    ύϑΥʔϚϯεʹӨڹΛٴ΅͢͜ͱ΋…
    

    View Slide

21. How people build software
    ! 21
    ͲΜͳ໰୊͕͋ͬͯɺͲ͏ରॲ͢Ε͹͍͍ʁ
    

    View Slide

22. How people build software
    !
    ύϑΥʔϚϯεͷ໰୊Λ
    Ҿ͖ى͜͢έʔε
    22
    !
    

    View Slide

23. How people build software
    ! 23
    1ͭͷσΟϨΫτϦʹେྔͷϑΝΠϧ͕͋Δ৔߹
    

    View Slide

24. How people build software
    ! 24
    ”tree”ΦϒδΣΫτɿσΟϨΫτϦͷ৘ใ
    “dir_a”σΟϨΫτϦͷதʹɺ”file_a”ͱ”file_b”͕͋Δ
    file_a file_b
    tree
    blob blob
    

    View Slide

25. How people build software
    ! 25
    ”tree”ΦϒδΣΫτͷੜ੒
    • ৽͘͠σΟϨΫτϦΛ࡞੒ͨ͠ͱ͖
    • σΟϨΫτϦ഑ԼͷϑΝΠϧ͕มߋ͞Εͨͱ͖
    ”tree”ΦϒδΣΫτɿσΟϨΫτϦͷ৘ใ
    

    View Slide

26. How people build software
    ! 26
    file_aΛมߋͯ͠ΈΔ
    “dir_a”σΟϨΫτϦ
    tree: “42b7fbs”
    tree: “48c3474”
    

    View Slide

27. How people build software
    ! 27
    tree: “48c3474”
    tree: “42b7fbs”
    σΟϨΫτϦͷதʹϑΝΠϧ͕େྔʹଘࡏ͢Δͱ
    ͦͷσΟϨΫτϦ഑ԼͷϑΝΠϧ͕มߋ͞ΕΔͨͼʹɺ
    େྔͳϑΝΠϧͷ৘ใ͕֨ೲ͞ΕͨtreeΦϒδΣΫτ͕࡞ΒΕΔ
    

    View Slide

28. How people build software
    ! 28
    git push΍git fetchͳͲͷλΠϛϯάͰ
    2ͭͷΦϒδΣΫτͷڞ௨෦෼Λݟ͚ͭͯPackϑΝΠϧΛ
    ੜ੒͢Δ(IO΍ϝϞϦͷফඅ)
    git fetch΍git push͕஗͘ͳΔ
    

    View Slide

29. How people build software
    ! 29
    αϒσΟϨΫτϦΛ࡞ͬͯϑΝΠϧΛ෼͚Α͏
    

    View Slide

30. How people build software
    ! 30
    େ͖ͳςΩετϑΝΠϧ͕͋Δ৔߹
    

    View Slide

31. How people build software
    ! 31
    8fd1403 acbd4fb
    ྫɿେ͖ͳςΩετϑΝΠϧAΛ1ߦ͚ͩมߋ͢Δ
    1ߦ௥Ճ େ͖ͳΦϒδΣΫτ͕
    2ͭͰ͖Δ
    git push΍git fetchͳͲͷλΠϛϯάͰ
    2ͭͷΦϒδΣΫτͷڞ௨෦෼Λݟ͚ͭͯPackϑΝΠϧΛ
    ੜ੒͢Δ(IO΍ϝϞϦͷফඅ)
    git fetch΍git push͕஗͘ͳΔ
    

    View Slide

32. How people build software
    ! 32
    όΠφϦϑΝΠϧͱͯ͠औΓѻ͏Α͏ʹ͢Δ
    “core.bigFileThreshold”ͷ஋Λௐ੔
    (σϑΥϧτ 512MB)
    .gitattribute
    

    View Slide

33. How people build software
    ! 33
    େ͖ͳόΠφϦϑΝΠϧ͕͋Δ৔߹
    

    View Slide

34. How people build software
    ! 34
    όΠφϦϑΝΠϧ͸ɺશͯͷσʔλΛอ࣋͢ΔͨΊɺ
    ϦϙδτϦࣗମͷαΠζ͕େ͖͘ͳͬͯ͠·͏
    GitHubࣗମͷύϑΥʔϚϯεʹ΋Өڹ!ʂ
    ಛʹΦϯϓϨ൛ͷGitHub Enterprise Server
    git clone͕஗͘ͳΔ
    େ͖ͳόΠφϦϑΝΠϧ
    

    View Slide

35. How people build software
    ! 35
    Git LFSΛ࢖ͬͯɺେ͖ͳόΠφϦϑΝΠϧ͸
    ϦϙδτϦͷ֎ʹஔ͜͏
    https://github.com/git-lfs/git-lfs
    

    View Slide

36. How people build software
    ! 36
    Git LFS
    όΠφϦϑΝΠϧ͸ผͷ৔ॴʹอଘͯ͠ɺ
    ୅ΘΓʹϙΠϯλϑΝΠϧΛόʔδϣϯ؅ཧ͢Δ࢓૊Έ
    খ͞ͳςΩετϑΝΠϧ
    ϙΠϯλϑΝΠϧ
    

    View Slide

37. How people build software
    ! 37
    Git LFSͰϑΝΠϧΛτϥοΩϯά
    ͢Ͱʹίϛοτ͞Ε͍ͯΔϑΝΠϧΛLFSͰτϥοΩϯά
    ͪΐͬ͜ͱίϚϯυ঺հ
    

    View Slide

38. How people build software
    ! 38
    ໰୊͕͋Γͦ͏ͳϑΝΠϧͷݟ͚ͭํ
    

    View Slide

39. How people build software
    ! 39
    git lfs migrate info
    

    View Slide

40. How people build software
    ! 40
    git-sizer
    https://github.com/github/git-sizer
    

    View Slide

41. How people build software
    ! 41
    

    View Slide