Dulwich: Initial integration (#11900)
Dulwich is a Git implementation written in Python with native extensions
written with Rust. From [the Dulwich
README](5f0497de9c/README.rst):
> It aims to provide an interface to git repos (both local and remote)
that doesn't call out to git directly but instead uses pure Python.
### Maintainer's Approval
@jelmer is the project's maintainer and approved of this integration
proposal here:
https://github.com/jelmer/dulwich/issues/1302#issuecomment-2093114061.
My email is in the `auto_ccs` list so I can assist with bug triage as
discussed in that same thread.
### Popularity in the Python Ecosystem
At the time of this PR,
[pypistats.org](https://pypistats.org/packages/dulwich) lists the
following:
- Downloads last day: 1,432,072
- Downloads last week: 7,864,024
- Downloads last month: 35,371,675
Dulwich is mentioned[^1] as one of the "most popular embeddable Git
libraries"[^2] in the book _Pro Git 2nd Edition_ by Scott Chacon and Ben
Straub, and is a dependency of other popular projects such as
[magic-wormhole/magic-wormhole](https://github.com/magic-wormhole/magic-wormhole),
[openstack/reno](https://opendev.org/openstack/reno/),
[PrefectHQ/prefect](https://github.com/PrefectHQ/prefect),
[tahoe-lafs/tahoe-lafs](https://github.com/tahoe-lafs/tahoe-lafs), and
[many more](https://github.com/jelmer/dulwich/network/dependents).
[^2]: _Pro Git 2nd Edition_, [A2.1 Appendix B: Embedding Git in your
Applications - Command-line
Git](https://git-scm.com/book/en/v2/Appendix-B%3A-Embedding-Git-in-your-Applications-Command-line-Git)
[^1]: _Pro Git 2nd Edition_, [A2.5 Appendix B: Embedding Git in your
Applications -
Dulwich](https://git-scm.com/book/en/v2/Appendix-B%3A-Embedding-Git-in-your-Applications-Dulwich)
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