git-svn and svn:externals, was Re: Hackontest ideas?

Hi,

On Tue, 29 Jul 2008, Jakub Narebski wrote:

 * handling of svn:externals using submodules

I doubt that this is easy.  Otherwise, Eric would have done it a long time 
ago.

The main concern I have is to get the semantics right: AFAICT 
svn:externals has _no notion_ of "what is current".  It just _always_ 
fetches the HEAD.  Even if you check out an ancient revision in the 
"superproject".

Ciao,
Dscho