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bug#65720: Digression about Git implementations (was Re: bug#65720: Guil
From: |
Simon Tournier |
Subject: |
bug#65720: Digression about Git implementations (was Re: bug#65720: Guile-Git-managed checkouts grow way too much) |
Date: |
Mon, 11 Sep 2023 10:42:35 +0200 |
Hi Ludo,
On Fri, 08 Sep 2023 at 19:08, Ludovic Courtès <ludo@gnu.org> wrote:
> Years ago, Andy Wingo sketched a plan for GNU hackers to implement Git
> in pure Scheme. That was on April 1st though, so people mistakenly
> assumed it was a joke and the project was never carried out.
Well, that is a piece of work. :-)
Maybe there is an hope with: git-std-lib.
Subject: Proposal/Discussion: Turning parts of Git into libraries
From: Emily Shaffer <nasamuffin@google.com>
To: Git List <git@vger.kernel.org>
Date: Fri, 17 Feb 2023 13:12:23 -0800
https://lore.kernel.org/git/CAJoAoZ=Cig_kLocxKGax31sU7Xe4==BGzC__Bg2_pr7krNq6MA@mail.gmail.com/
And some patches are starting to float around.
https://public-inbox.org/git/20230810163346.274132-1-calvinwan@google.com/
> I digress, but I wonder: is there not even a viable Haskell or OCaml
> implementation of Git?
It depends on what means “viable”. :-)
https://github.com/mirage/ocaml-git
https://hackage.haskell.org/package/git
Irmin [1] is an OCaml library for building mergeable, branchable
distributed data stores – A Distributed Database Built on the Same
Principles as Git. And irmin relies on ocaml-git.
1: https://github.com/mirage/irmin
Then there is a pure Go implementation and another using Java.
https://git-scm.com/book/en/v2/Appendix-B%3A-Embedding-Git-in-your-Applications-go-git
https://git-scm.com/book/en/v2/Appendix-B%3A-Embedding-Git-in-your-Applications-JGit
I do not know all that are “viable”. Well, I do not know if ’git gc’ is
implemented. And I do not know which plumbing is implemented and which
porcelain is available.
Last, SWH uses dulwich [2] which is a pure Python implementation of Git.
2: https://www.dulwich.io/
To my knowledge, there is no “dulwich gc” but they implement “dulwich
fsck” and “dulwich repack”.
Back on 10 Years of Guix or at UNESCO on February – I do not remember
exactly when – we were discussing about implementation of Git. And we
mentioned an implementation in Rust. Maybe this one:
https://github.com/Byron/gitoxide
Cheers,
simon
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/03
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/04
- bug#65720: Guile-Git-managed checkouts grow way too much, Josselin Poiret, 2023/09/05
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/05
- bug#65720: Guile-Git-managed checkouts grow way too much, Josselin Poiret, 2023/09/06
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/08
- bug#65720: Guile-Git-managed checkouts grow way too much, Csepp, 2023/09/11
- bug#65720: Digression about Git implementations (was Re: bug#65720: Guile-Git-managed checkouts grow way too much),
Simon Tournier <=
- bug#65720: Guile-Git-managed checkouts grow way too much, wolf, 2023/09/11
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/13
- bug#65720: Guile-Git-managed checkouts grow way too much, Simon Tournier, 2023/09/13
- bug#65720: Guile-Git-managed checkouts grow way too much, Simon Tournier, 2023/09/06
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/08
- bug#65720: Guile-Git-managed checkouts grow way too much, Simon Tournier, 2023/09/09
- bug#65720: Guile-Git-managed checkouts grow way too much, Csepp, 2023/09/11
- bug#65720: Guile-Git-managed checkouts grow way too much, Ludovic Courtès, 2023/09/11
bug#65720: Guile-Git-managed checkouts grow way too much, Simon Tournier, 2023/09/05
bug#65720: Guile-Git-managed checkouts grow way too much, Jelle Licht, 2023/09/06