6 ms·

Ugit - DIY Git in Python

124 points by rohithkp 5y ago

iheredia 5y ago
Anyone knows of similar projects in another languages? I've been wanting to understand some important tools (like git in this case) and also learn some languages I've been pushing back. Would love to find more of these
- rohitpaulk 5y ago
  There's a long list here: https://github.com/danistefanovic/build-your-own-x https://github.com/danistefanovic/build-your-own-x. Also, https://codecrafters.io/challenges/git https://codecrafters.io/challenges/git supports multiple languages (I'm the author). Many folks that try this challenge do it for the same reason you mentioned: to learn about a tool and learn a new language at the same time.
- sc4ramouche 5y ago
  I was thinking the same and found the book that teaches to build Git in Ruby, although I haven’t checked it out yet: https://shop.jcoglan.com/building-git/ https://shop.jcoglan.com/building-git/
  - iudqnolq 5y ago
    I followed along to that book in Rust and found it excellent.
- egeozcan 5y ago
  Exactly, Typescript or C# would have been very nice. edit: found some for JS, not TS but still something: http://gitlet.maryrosecook.com/docs/gitlet.html http://gitlet.maryrosecook.com/docs/gitlet.html https://kushagra.dev/blog/build-git-learn-git/ https://kushagra.dev/blog/build-git-learn-git/
- turminal 5y ago
  There's https://git.sr.ht/~sircmpwn/shit https://git.sr.ht/~sircmpwn/shit, written in posix sh. It doesn't implement any of the porcelain though.
- ori_b 5y ago
  The OpenBSD people are working on Game of Trees: http://gameoftrees.org/ http://gameoftrees.org/ And I wrote the one that 9front uses, which is self hosting (client, server, and web ui all run off it): http://shithub.us/ori/git9/HEAD/f.html http://shithub.us/ori/git9/HEAD/f.html
- JoshTriplett 5y ago
  For Rust, see https://github.com/Byron/gitoxide https://github.com/Byron/gitoxide , which provides both a pure Rust library and a command-line tool built atop that library.
- fiddlerwoaroof 5y ago
  I’ve been slowly working on implementing git in Common Lisp: https://github.com/fiddlerwoaroof/cl-git https://github.com/fiddlerwoaroof/cl-git I think I have most of the object type parsers done for loose objects and pack files, just need to finish implementing the delta ref decoding algorithm.
JonathanBeuys 5y ago
Wow, that is a beautiful interface. I mean the website itself. How is it made?
- leeuw01 5y ago
  +1, it looks great! Just wanted to ask the same question.
  - andlima 5y ago
    +1 It would be awesome to have a tool that creates a website like that from a git repo and a collection of markdown pages matching the commits.
deleted 5y ago
[deleted]
toinbis 5y ago
Earlier(2020-09) HN submission with discussion on same project: https://news.ycombinator.com/item?id=24517925 https://news.ycombinator.com/item?id=24517925.
arafatamim 5y ago
There isn't a table of contents for the website? I haven't been able to find one.
- jonatron 5y ago
  You could take the titles from these: https://www.leshenko.net/p/ugit/commits/0_ea7001173eca.json https://www.leshenko.net/p/ugit/commits/0_ea7001173eca.json https://www.leshenko.net/p/ugit/commits/10_ad7b545d89c5.json https://www.leshenko.net/p/ugit/commits/10_ad7b545d89c5.json https://www.leshenko.net/p/ugit/commits/20_b9fc219d64aa.json https://www.leshenko.net/p/ugit/commits/20_b9fc219d64aa.json https://www.leshenko.net/p/ugit/commits/30_edbc10cf00d3.json https://www.leshenko.net/p/ugit/commits/30_edbc10cf00d3.json https://www.leshenko.net/p/ugit/commits/40_cbfd5156051c.json https://www.leshenko.net/p/ugit/commits/40_cbfd5156051c.json https://www.leshenko.net/p/ugit/commits/50_56ed4b981991.json https://www.leshenko.net/p/ugit/commits/50_56ed4b981991.json https://www.leshenko.net/p/ugit/commits/60_4592eac2f135.json https://www.leshenko.net/p/ugit/commits/60_4592eac2f135.json
xonix 5y ago
Git in Awk: https://github.com/djanderson/aho https://github.com/djanderson/aho
mixedmath 5y ago
I particularly like the iterated development approach to teaching on this site. That is, one starts with some minimal working code, states a goal, and then modifies the code to accomplish that goal --- repeatedly. This is a very powerful way to go through a codebase (when it is possible).
- tony 5y ago
  Does anyone know the tool to use used to generate the site? e.g. Is it using plugin for a static site generator?
  - yardshop 5y ago
    In the comments on the first page, he says it's custom written in TypeScript and not open source yet.
otheracc 5y ago
> f'{GIT_DIR}/objects' Never seen a writing style like that. How is it called? I want to read some documentation and history.
- mixmastamyk 5y ago
  Sting interpolation, aka f-string, pep 498. Uses the .format mini-language plus expressions. Python 3.6+
  - mixmastamyk 5y ago
    ^string of course.
    - otheracc 5y ago
      Thanks a lot, I'll check it out!

124 points by rohithkp 5y ago

Anyone knows of similar projects in another languages? I've been wanting to understand some important tools (like git in this case) and also learn some languages I've been pushing back. Would love to find more of these

rohitpaulk 5y ago
There's a long list here: https://github.com/danistefanovic/build-your-own-x https://github.com/danistefanovic/build-your-own-x. Also, https://codecrafters.io/challenges/git https://codecrafters.io/challenges/git supports multiple languages (I'm the author). Many folks that try this challenge do it for the same reason you mentioned: to learn about a tool and learn a new language at the same time.
sc4ramouche 5y ago
I was thinking the same and found the book that teaches to build Git in Ruby, although I haven’t checked it out yet: https://shop.jcoglan.com/building-git/ https://shop.jcoglan.com/building-git/
- iudqnolq 5y ago
  I followed along to that book in Rust and found it excellent.
egeozcan 5y ago
Exactly, Typescript or C# would have been very nice. edit: found some for JS, not TS but still something: http://gitlet.maryrosecook.com/docs/gitlet.html http://gitlet.maryrosecook.com/docs/gitlet.html https://kushagra.dev/blog/build-git-learn-git/ https://kushagra.dev/blog/build-git-learn-git/
turminal 5y ago
There's https://git.sr.ht/~sircmpwn/shit https://git.sr.ht/~sircmpwn/shit, written in posix sh. It doesn't implement any of the porcelain though.
ori_b 5y ago
The OpenBSD people are working on Game of Trees: http://gameoftrees.org/ http://gameoftrees.org/ And I wrote the one that 9front uses, which is self hosting (client, server, and web ui all run off it): http://shithub.us/ori/git9/HEAD/f.html http://shithub.us/ori/git9/HEAD/f.html
JoshTriplett 5y ago
For Rust, see https://github.com/Byron/gitoxide https://github.com/Byron/gitoxide , which provides both a pure Rust library and a command-line tool built atop that library.
fiddlerwoaroof 5y ago
I’ve been slowly working on implementing git in Common Lisp: https://github.com/fiddlerwoaroof/cl-git https://github.com/fiddlerwoaroof/cl-git I think I have most of the object type parsers done for loose objects and pack files, just need to finish implementing the delta ref decoding algorithm.

JonathanBeuys 5y ago

Wow, that is a beautiful interface. I mean the website itself. How is it made?

leeuw01 5y ago
+1, it looks great! Just wanted to ask the same question.
- andlima 5y ago
  +1 It would be awesome to have a tool that creates a website like that from a git repo and a collection of markdown pages matching the commits.

deleted 5y ago

[deleted]

toinbis 5y ago

Earlier(2020-09) HN submission with discussion on same project: https://news.ycombinator.com/item?id=24517925 https://news.ycombinator.com/item?id=24517925.

arafatamim 5y ago

There isn't a table of contents for the website? I haven't been able to find one.

jonatron 5y ago
You could take the titles from these: https://www.leshenko.net/p/ugit/commits/0_ea7001173eca.json https://www.leshenko.net/p/ugit/commits/0_ea7001173eca.json https://www.leshenko.net/p/ugit/commits/10_ad7b545d89c5.json https://www.leshenko.net/p/ugit/commits/10_ad7b545d89c5.json https://www.leshenko.net/p/ugit/commits/20_b9fc219d64aa.json https://www.leshenko.net/p/ugit/commits/20_b9fc219d64aa.json https://www.leshenko.net/p/ugit/commits/30_edbc10cf00d3.json https://www.leshenko.net/p/ugit/commits/30_edbc10cf00d3.json https://www.leshenko.net/p/ugit/commits/40_cbfd5156051c.json https://www.leshenko.net/p/ugit/commits/40_cbfd5156051c.json https://www.leshenko.net/p/ugit/commits/50_56ed4b981991.json https://www.leshenko.net/p/ugit/commits/50_56ed4b981991.json https://www.leshenko.net/p/ugit/commits/60_4592eac2f135.json https://www.leshenko.net/p/ugit/commits/60_4592eac2f135.json

xonix 5y ago

Git in Awk: https://github.com/djanderson/aho https://github.com/djanderson/aho

mixedmath 5y ago

I particularly like the iterated development approach to teaching on this site. That is, one starts with some minimal working code, states a goal, and then modifies the code to accomplish that goal --- repeatedly. This is a very powerful way to go through a codebase (when it is possible).

tony 5y ago
Does anyone know the tool to use used to generate the site? e.g. Is it using plugin for a static site generator?
- yardshop 5y ago
  In the comments on the first page, he says it's custom written in TypeScript and not open source yet.

otheracc 5y ago

> f'{GIT_DIR}/objects' Never seen a writing style like that. How is it called? I want to read some documentation and history.

mixmastamyk 5y ago
Sting interpolation, aka f-string, pep 498. Uses the .format mini-language plus expressions. Python 3.6+
- mixmastamyk 5y ago
  ^string of course.
  - otheracc 5y ago
    Thanks a lot, I'll check it out!