Show HN: ugit – Learn Git Internals by Building Git in Python
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Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#2Looks great! I'm wondering if there are other tutorials like this but for Ruby?
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#3Polished presentation! I like to learn from first principles, so this is perfect.
There is also write you a git: https://wyag.thb.lt/
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#4I definitely agree that having a good understanding of git's internals is a must for using it to its full potential. I'm not sure you have to go as far as implementing it yourself, but it is a sure fire way to get there. For me it didn't all click into place until I understood the data model behind git[1]. A git project is just one big DAG of objects, and each object at its core is either a blob, a tree, or a commit. When you understand that, you can start to view every git command for what they actually are, a sequence of operations on this data structure.
[1] relevant xkcd: https://xkcd.com/1597/
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#5Reminds me of https://codecrafters.io/challenges
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#6Maybe this is what I need to like git.
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#7Looks great! I'm wondering if there are other tutorials like this but for Ruby?
The defacto version was in Ruby:
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#8This strikes me as a cool and polished version of shit, the Git implementation Drew DeVault did in pure POSIX shell. https://git.sr.ht/~sircmpwn/shit
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#9Looks neat! This reminds me heavily of the excellent Building Git by James Coglan[1].
From a cursory glance though, it doesn't seem to support reading packfiles. This was the big thing that prevented me from using a fully custom Git implementation when I wrote my git churn calculator[2]. For larger repositories, it seems that almost all files are stored in packfiles, rather than the conceptually simpler "loose" format.
For me, the most valuable resource was reading the Git / libgit2 source and reference documentation.
Re: Show HN: ugit – Learn Git Internals by Building Git in Python
#10Looks neat! This reminds me heavily of the excellent Building Git by James Coglan[1]. From a cursory glance though, it doesn't seem to support reading packfiles. This was the big thing that prevented me from using a fully custom Git implementation when I wrote my git churn calculator[2]. For larger repositories, it seems that almost all files are stored in packfiles, rather than the conceptually simpler "loose" forma…
Thanks! Note that ugit isn't supposed to be a custom compatible Git implementation, but rather a simplified Git-like implementation for teaching Git concepts. So even if ugit supported packfiles, it still won't be able to read a real Git repo.