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Re: Boost SVN adoption with Eclipse support

From: John Pybus <john.pybus_at_zoology.oxford.ac.uk>
Date: 2004-01-12 16:35:49 CET

Fernando.Colombo wrote:
> I think it's pretty obvious that SVN adoption would be dramatically boosted
> if Eclipse has a nice support for it.
> Although subeclipse does this, it's poor if compared to Eclipse support on
> CVS. svn4eclipse wants to do this, but it's a student project, and tend to
> be very slow.
> Perhaps if Eclipse.org and Tigris.org join efforts, SVN integration would be
> part of "The Eclipse Project" itself... (a dream to me)
> The guys at Eclpise.org like SVN, but they need a good Java integration to
> make it real. Currently, SVN integration with Java has the following
> options:
> 1. JNI (javahl, SWIG-Java)
> 2. Command line (Alternate Computing jsvn bindings).
> Both aren't practical for Eclipse.
> Option 1 (JNI) needs platform specific Java libraries. "The Eclipse Project"
> supports 7 platforms. As far as I know, only SWT subproject requires
> platform specific Java libraries. The rest is 100% pure Java, including CVS
> support.
> Option 2 (command line) does not provide enough flexibility, like safe
> process aborting and process state inquiring capabilities.
> They need a 3rd option - a 100% pure Java option. This is essentially a Java
> implementation of the SVN protocol (client-side only). Perhaps this is the
> missing project in the SCM category of Tigris.org.

This ought to be a FAQ.

Replacing client-side svn is a lot harder than writing a pure java CVS
implementation. The svn WC is more complex, and probably the network
protocols too. I doubt that this would be fruitfull. It might be
somewhat easier to write a new incompatible WC format, and reimplement
(one of) the network protocols, though I don't think that would be as

Far more useful would be to ship a good, stable set of JNI bindings with
svn- (or whatever it'll be called :), and to apply the same set
of strong API compatibily promises that the C svn libraries do. This
would allow java tools to integrate with svn to almost the same degree
as natively compiled ones. Really, library integration, and hence
widespread tool development, is more about stable API and ABI promises
than particular technologies.



(who doesn't use Eclipse much, but supports a team who do)

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Received on Mon Jan 12 16:36:25 2004

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