Dulwich: Pure Python implementation of git

by DanielRibeiro • 15 years ago

151 33 15 years ago

Github's hg-git plugin ( http://hg-git.github.com/ ) is built with this, and so manages to avoid a dependency on the git binaries.

dborowitz• 15 years ago

Incidentally, the second most frequent contributor to hg-git after schacon is Augie Fackler, one of the Google engineers who helped with Google Code's git implementation (and also a frequent hg hacker).

durin426• 15 years ago

I'm also the actual maintainer of hg-git at this point, FWIW.

mvzink• 15 years ago

A few months ago, I was at a talk at Google Chicago with two of the original creators of Subversion (Ben Collins-Sussman and Brian Fitzpatrick). After profuse apologies, they said everyone in the room should switch from git to hg, and that people who still used git just didn't realize how much it sucks. Then I realized why Google released hg support before git support :P

simonw• 15 years ago

This is the library that Google used for Google Code's git support.

swombat• 15 years ago

Dulwich is a real town in the South of London, with a relatively large school called Dulwich College, where I studied. A bit spooked to see a library named after it...

brendn• 15 years ago

"Dulwich is the place where Mr. and Mrs. Git live in one of the Monty Python sketches." (http://pypi.python.org/pypi/dulwich)

arthurdenture• 15 years ago

Not only that, there's a bus that goes to Dulwich Library, which I was obligated to snap a picture of when I was visiting London.

sitkack• 15 years ago

I don't know why this makes me so happy.

uriel2• 15 years ago

What i would like to see is an Hg implementation in Go.

andrewflnr• 15 years ago

Why, exactly? It sounds like an oddly interesting idea to me, too, but I'm not sure why and I'd like to hear your reasons.

thristian• 15 years ago

The recently-announced fork of the Plan 9 operating system, 9front, keeps it source in a Mercurial repository, and includes a Go compiler in the base operating system (which makes sense, since the creators of Plan 9 are also pretty much the creators of Go). I guess a Mercurial port to Go would make life a lot easier there.

uriel2• 15 years ago

Avoiding the overhead of python's startup time alone would be nice, hg is impressively fast for being written in Python, but could be much faster and memory-efficient in a compiled language where you have control over memory layout.

And that is without going into the potential of perhaps taking advantage of concurrency and parallelization for some things.

pointyhat2• 15 years ago

I'm actually considering doing this now you've said it. If there would be enough interest that is. There are very few "non-python" complete hg implementations.

durin426• 15 years ago

I started tinkering with an implementation of revlog on the plane back from OSCON. If I get anywhere useful I'll post the sources somewhere.

glenjamin• 15 years ago

Does anyone know what the performance of this on windows (maybe with PyPy?) is compared to MSys Git or Cygwin.

If it's pretty good there should be some mileage in making a reasonable git client for windows based on this.

cincinnatus• 15 years ago

How about an Iron Python based implementation. Then it could be 'native' code

baq• 15 years ago

msysgit was fast enough for me in a 250+kloc project.

it was certainly faster than dog-slow g++.

nuclear_eclipse• 15 years ago

That's exactly what I was thinking of when seeing this. It could prove fruitful for getting a "Tortoise" interface for git that's both easy to maintain and doesn't rely on clunky bits like msysgit.

morphir• 15 years ago

python is like china. By making a shameless copy for them self to use.

Dulwich: Pure Python implementation of git

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