Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Raw Git

Avatar for Scott Sanders Scott Sanders
May 05, 2014
Programming
2
260

Raw Git

A quick presentation covering some of the basics of working with Git objects in Ruby.

Avatar for Scott Sanders

Scott Sanders

May 05, 2014
Tweet

More Decks by Scott Sanders

See All by Scott Sanders
Brubeck - A high-performance statsd-compatible aggregation daemon
Avatar for Scott Sanders jssjr
1
300
The Lifecycle of an Outage
Avatar for Scott Sanders jssjr
7
1.5k
Disaster Porn Lightning Talk
Avatar for Scott Sanders jssjr
0
390

Other Decks in Programming

See All in Programming
AIによる高速開発をどう制御するか？ ガードレール設置で開発速度と品質を両立させたチームの事例
Avatar for tonkotsuboy_com tonkotsuboy_com
7
2.6k
atmaCup #23でAIコーディングを活用した話
Avatar for ML_Bear ml_bear
4
710
今更考える「単一責任原則」 / Thinking about the Single Responsibility Principle
Avatar for philomagi tooppoo
3
1.2k
Agent Skills Workshop - AIへの頼み方を仕組み化する
Avatar for Gota gotalab555
13
7.4k
CSC307 Lecture 10
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
1
690
米国のサイバーセキュリティタイムラインと見る Goの暗号パッケージの進化
Avatar for tom twinkle tomtwinkle
1
340
Beyond the Basics: Signal Forms
Avatar for Manfred Steyer manfredsteyer
PRO
0
110
Oxlint JS plugins
Avatar for kazupon kazupon
1
1.1k
文字コードの話
Avatar for Masaki Hara qnighy
43
16k
AWS Infrastructure as Code の新機能 2025 総まとめ 〜SA 4人による怒涛のデモ祭り〜
Avatar for Kenji Kono konokenj
10
2.8k
AI活用のコスパを最大化する方法
Avatar for Ochtum ochtum
0
120
株式会社 Sun terras カンパニーデック
Avatar for Sun terras.Inc sunterras
0
1.9k

Featured

See All Featured
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
666
130k
Designing Dashboards & Data Visualisations in Web Apps
Avatar for Des Traynor destraynor
231
54k
Reality Check: Gamification 10 Years Later
Avatar for Sebastian Deterding codingconduct
0
2k
Efficient Content Optimization with Google Search Console & Apps Script
Avatar for Katarina Dahlin katarinadahlin
PRO
1
360
Prompt Engineering for Job Search
Avatar for Mfonobong Umondia mfonobong
0
180
Skip the Path - Find Your Career Trail
Avatar for Mark Kilby mkilby
0
71
AI in Enterprises - Java and Open Source to the Rescue
Avatar for ivargrimstad ivargrimstad
0
1.2k
Site-Speed That Sticks
Avatar for Harry Roberts csswizardry
13
1.1k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
Avatar for Eileen M. Uchitelle eileencodes
26
3.4k
Google's AI Overviews - The New Search
Avatar for Barry Adams badams
0
920
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
2.3k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
Avatar for Addy Osmani addyosmani
10
1.1k

Transcript

  1. Raw Git Underneath the porcelain and plumbing

  2. None

  3. What is git? • Distributed Version Control System • A

    content addressable filesystem • OMG It’s full of SHA1 hashes! • With some reference logs to these hashes That’s pretty much it...

  4. git in 15 seconds

  5. None
  6. None
  7. None
  8. None
  9. None
  10. None

  11. wtf just happened?

  12. None

  13. so many files. ermahgerd.

  14. None

  15. its just a graph, really

  16. with three main objects

  17. “files” blobs

  18. “directories” trees

  19. “references to trees” commits

  20. and a reference log

  21. None

  22. … because its easy let’s do this by hand

  23. None
  24. None
  25. None

  26. “blob” SP <length> NUL

  27. None
  28. None
  29. None
  30. None
  31. None
  32. None
  33. None
  34. None
  35. None

  36. does git work now? we made a blob!

  37. None
  38. None
  39. None

  40. NOPE!

  41. we need our tree

  42. “tree” SP <length> NUL <mode> <name> NUL <sha>

  43. None
  44. None
  45. None
  46. None
  47. None
  48. None
  49. None
  50. None
  51. None

  52. does git work yet? now we have a tree!

  53. None
  54. None
  55. None

  56. NOPE!

  57. still need the commit

  58. “commit” SP <length> NUL “tree <sha>” LF “author <name> <timestamp>”

    LF “committer <name> <timestamp>” LF LF “<message>” LF
  59. None
  60. None
  61. None
  62. None
  63. None
  64. None
  65. None
  66. None

  67. lol typo

  68. None

  69. does git work now?!? ok, we have our objects

  70. None
  71. None
  72. None

  73. NOPE!

  74. what gives?

  75. AKA Let’s glue it all together that pesky reflog

  76. None
  77. None
  78. None

  79. That’s it!

  80. None
  81. None
  82. None
  83. None
  84. None

  85. git is really simple

  86. and extremely flexible

  87. go build your own workflow!

  88. and don’t be scared to look under the hood

  89. Thanks!

  90. github.com/jssjr @scott_sanders