Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
How Gitlab Works
Search
Saito
November 18, 2012
Technology
34
4.5k
How Gitlab Works
RubyConfChina presentation.
Saito
November 18, 2012
Tweet
Share
More Decks by Saito
See All by Saito
Middle-Scale F2E Application
saito
3
6.7k
Other Decks in Technology
See All in Technology
extension 現場で使えるXcodeショートカット一覧
ktombow
0
210
自動テストのコストと向き合ってみた
qa
0
130
職種別ミートアップで社内から盛り上げる アウトプット文化の醸成と関係強化/ #DevRelKaigi
nishiuma
2
130
Exadata Database Service on Dedicated Infrastructure(ExaDB-D) UI スクリーン・キャプチャ集
oracle4engineer
PRO
2
5.4k
GC25 Recap+: Advancing Go Garbage Collection with Green Tea
logica0419
1
400
データエンジニアがこの先生きのこるには...?
10xinc
0
440
Optuna DashboardにおけるPLaMo2連携機能の紹介 / PFN LLM セミナー
pfn
PRO
1
880
関係性が駆動するアジャイル──GPTに人格を与えたら、対話を通してふりかえりを習慣化できた話
mhlyc
0
130
about #74462 go/token#FileSet
tomtwinkle
1
290
「Verify with Wallet API」を アプリに導入するために
hinakko
1
230
【新卒研修資料】LLM・生成AI研修 / Large Language Model・Generative AI
brainpadpr
23
17k
E2Eテスト設計_自動化のリアル___Playwrightでの実践とMCPの試み__AIによるテスト観点作成_.pdf
findy_eventslides
0
120
Featured
See All Featured
Designing Experiences People Love
moore
142
24k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
140
34k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
29
2.6k
Being A Developer After 40
akosma
91
590k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Principles of Awesome APIs and How to Build Them.
keavy
127
17k
StorybookのUI Testing Handbookを読んだ
zakiyama
31
6.2k
Rebuilding a faster, lazier Slack
samanthasiow
84
9.2k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
248
1.3M
[RailsConf 2023] Rails as a piece of cake
palkan
57
5.9k
Rails Girls Zürich Keynote
gr2m
95
14k
How GitHub (no longer) Works
holman
315
140k
Transcript
How GitLab Works
Saito github.com/saitowu @saitowu
AIXForce
GitLab?
GitLab? Self Hosted Git Management Application
None
issues code snippet ssh & http wall ... code view
wiki network graph merge request
happy to use it.
happy to use it. want to know how it works?
None
backend
backend repo access
backend repo access presentation layer
Backend
Can be backend:
Can be backend: protocol
Can be backend: file => (RW) git => (R) ssh
=> (RW) http => (RW) protocol
Can be backend: file => (RW) git => (R) ssh
=> (RW) http => (RW) protocol x x
Can be backend: file => (RW) git => (R) ssh
=> (RW) http => (RW) protocol x x #=> remote #=> authentication
SSH:
SSH: normal: authorized_keys
SSH: normal: authorized_keys
SSH:
SSH: gitosis/gitolite: authorized_keys
SSH: gitosis/gitolite: authorized_keys SSH magic command
SSH: gitosis/gitolite: authorized_keys SSH magic command
SSH:
SSH: sshd: not authorized_keys
SSH: sshd: not authorized_keys but patched sshd
SSH: sshd: not authorized_keys but patched sshd
SSH: sshd: not authorized_keys but patched sshd
SSH: sshd: not authorized_keys but patched sshd <= instead of
sshd
SSH:
SSH: GitLab v1.0: gitosis #=> python
SSH: GitLab v1.0: gitosis #=> python GitLab v2.0: gitolite #=>
perl
HTTP:
HTTP: before Git v1.6.6: dumb
HTTP: before Git v1.6.6: dumb after Git v1.6.6: smart!!!
HTTP: https://github.com/schacon/grack/blob/master/lib/git_http.rb#L10-23
git-upload-pack #=> send git-receive-pack #=> receive HTTP:
git-upload-pack #=> send git-receive-pack #=> receive HTTP: smart
HTTP: GitLab v2.7: smart HTTP protocol
Repo Access
Grit: command-line wrapper
Rugged: ruby bindings to libgit2
Grit vs Rugged
Grit vs Rugged win
Grit vs Rugged win lose
Grit vs Rugged win lose github will migrate from grit
to rugged too
Repo Browser
Must Know:
Must Know: Git object model
Must Know: Git encoding strategy Git object model
Must Know: Git encoding strategy Ruby encoding Git object model
Git Object Model:
Git Object Model: 4 basic objects: blob tree commit tag
Git Object Model: 4 basic objects: blob tree commit tag
stored in: .git/objects
Git Object Model:
Git Object Model: git show <sha>
Git Object Model: git cat-file -p <sha> git show <sha>
Git Object Model: http://saito.im/note/Git-Internals/
Git Encoding Strategy: At the core level, git is character
encoding agnostic. http://www.kernel.org/pub/software/scm/git/docs/v1.5.0.2/git-log.html#_discussion
Git Encoding Strategy:
Git Encoding Strategy: filename
Git Encoding Strategy: filename blob contents
Git Encoding Strategy: filename blob contents commit message
Git Encoding Strategy: filename #=> tree blob blob contents commit
message
Git Encoding Strategy: filename #=> tree blob blob contents #=>
blob commit message
Git Encoding Strategy: filename #=> tree blob blob contents #=>
blob commit message #=> commit tag
Git Encoding Strategy:
Git Encoding Strategy: no need #=> blob contents
Git Encoding Strategy: no need #=> blob contents need #=>
commit message, filename
Git Encoding Strategy: no need #=> blob contents need #=>
commit message, filename IMHO: #=> hg hybird strategy & svn
Ruby Encoding: detect encoding:
Ruby Encoding: detect encoding:the longer the better
Ruby Encoding: detect encoding:the longer the better filename
Ruby Encoding: detect encoding:the longer the better filename blob contents
Ruby Encoding: detect encoding:the longer the better filename blob contents
commit message
Ruby Encoding: detect encoding:the longer the better #=> too short
filename blob contents commit message
Ruby Encoding: detect encoding:the longer the better #=> too short
#=> good to detect filename blob contents commit message
Ruby Encoding: detect encoding:the longer the better #=> too short
#=> good to detect #=> not long enough filename blob contents commit message
Ruby Encoding: Character encoding detection:
Ruby Encoding: Character encoding detection: charlock_holmes
Ruby Encoding: Character encoding detection: charlock_holmes rchardet19
Ruby Encoding: Character encoding detection: charlock_holmes #=> libicu rchardet19
Ruby Encoding: Character encoding detection: charlock_holmes #=> libicu rchardet19 #=>
pure ruby
Ruby Encoding:
Ruby Encoding: blob contents:
Ruby Encoding: blob contents: filename and commit message:
Ruby Encoding: blob contents: filename and commit message: detect and
encode
Ruby Encoding: blob contents: filename and commit message: detect and
encode hard to deal with
Ruby Encoding:
Ruby Encoding: CSI
Ruby Encoding: CSI #=> Character Set Independent
Ruby Encoding: CSI USC #=> Character Set Independent
Ruby Encoding: CSI USC #=> Character Set Independent #=> Universal
Character Set
Ruby Encoding: CSI USC #=> Ruby #=> Character Set Independent
#=> Universal Character Set
Ruby Encoding: CSI USC #=> Ruby #=> Java Python Perl
#=> Character Set Independent #=> Universal Character Set
Ruby Encoding:
Ruby Encoding: MRI 1.8:
Ruby Encoding: MRI 1.8: defective encoding
Ruby Encoding: MRI 1.8: MRI 1.9: defective encoding
Ruby Encoding: MRI 1.8: MRI 1.9: defective encoding Encoding Class
Ruby Encoding: MRI 1.8: MRI 1.9: defective encoding pros: regexp
length Encoding Class
Ruby Encoding: MRI 1.8: MRI 1.9: defective encoding pros: regexp
length cons: incompatible character encodings Encoding Class
Hooks
Post-receive:
Post-receive: push event to redis
Post-receive: push event to redis resque it
scalability : Web Hooks Post-receive:
interoperability : API Post-receive:
interoperability : API based on grape Post-receive:
More
Git: pull-request
Git: pull-request git format-patch <br>..<br>
Git: git apply --check <patch> pull-request git format-patch <br>..<br>
Git: git apply --check <patch> pull-request git format-patch <br>..<br> git
am <patch>
Git: git cherry-pick <sha> cherry-pick
One More Thing
Gitlab CI
Thanks