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Re: Status of ctypes Subversion bindings

From: David Glasser <glasser_at_davidglasser.net>
Date: Wed, 11 Jun 2008 13:16:01 -0700

On Tue, Jun 10, 2008 at 8:26 AM, David James <james_at_cs.toronto.edu> wrote:
> On Mon, Jun 9, 2008 at 5:01 AM, John Szakmeister <john_at_szakmeister.net> wrote:
>> Hi! I assume that this email is reaching the same David James that is
>> part of the Subversion project. I just wanted to ping you about the
>> status of ctypesgen... and for that matter, csvn. It appears
>> development has stalled (I'm not complaining... I certainly understand
>> having demands for your time). I didn't know if this was a sign of
>> "it's ready for prime time" or if you (and others) just didn't have
>> the energy to finish it.
>> I'd be interested in helping... I don't like SWIG much, and ctypes is
>> a pain for complex APIs without something to help it. :-) BTW, is
>> there a group that I should be posting this on? I didn't see anything
>> on the Google Code page.
> Hi John,
> That's great news! We could certainly use the help.
> Right now, the ctypes python bindings are in pretty good shape. The
> low level bindings (which are similar to the SWIG bindings) are
> complete and work really reliably and well.
> We also have higher level python wrappers, which make it really easy
> to use the python bindings.
> The biggest work we need to do is figure out how to build the ctypes
> bindings on Windows. It may be possible to just build the ctypes
> python wrapper on Linux and copy it over to Windows and make a few
> changes and it will work. This is because we are generating pure
> Python bindings so in theory they could be platform independent. Note
> that you will need Subversion as a DLL to use them in ctypes on
> Windows, and that is a new feature in Subversion 1.5.
> Currently the ctypes python bindings are on a branch and working
> pretty well, but I'm not sure about where to go from here.
> I see two options:
> 1) Merge the ctypes Python bindings to trunk and integrate them with
> the Subversion build system
> 2) Launch ctypes bindings as a separate project.
> Where do you think we should go from here?

I think we should ship the low-level, automatically-generated ctypes
bindings with Subversion starting with 1.6, and launch the high-level
more usable library built on top of that as a separate project.

That way, high-level API design can be decoupled from Subversion's
release cycle, whereas the completely automated
make-the-bindings-match-C step can guarantee that you always have
immediate access to all new APIs.


David Glasser | glasser@davidglasser.net | http://www.davidglasser.net/
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Received on 2008-06-11 22:16:14 CEST

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