Re: [RFC] Fourth round of support for cloning submodules

On 5/24/07, Sven Verdoolaege [off-list ref] wrote:

On Thu, May 24, 2007 at 12:31:33PM +0100, Johannes Schindelin wrote:

quoted

On Thu, 24 May 2007, Sven Verdoolaege wrote:

quoted

OK... so what should git-update-server-info put in this file for submodules?
Or, equivalently, what should be the output of ls-remote?

Right now its a list of pairs of revs(sha1) and refs.
For submodules we want a connection between a submodule name
and one or more URLs where the submodule can be found.
How are you going to squeeze that into info/refs without confusing
older versions of git?

I wonder if the "ref^{blub}" syntax could be used for that: change "blub"
to the URL, or "sub:URL" or something.

Just to be clear, would it look like the following?

e8a6e39ecfbd391a54b9c3329fd3c6e33d745abd        refs/heads/bernstein
c5c64e3fe48302f0c4581985f9c68d615f7bcb4e        refs/heads/master
3fa7ded19a8da868d3af7c942f86358e6720f0c7        refs/heads/submodule
/home/sverdool/public_html/cloog.git    cloog^{URL}
http://www.liacs.nl/~sverdool/cloog.git cloog^{URL}

Is there no code out there that expects the "rev" part to be
exactly 40 characters?
Or do you propose we put the URL in a blob and put the object sha1
in there.  If so, who's going to create these blobs for the git://
and ssh:// protocols?  upload-pack?

There was a thread about adding symrefs to this as:

ref: refs/heads/master    HEAD
c5c64e3fe48302f0c4581985f9c68d615f7bcb4e        refs/heads/master

we could extend this for subproject support as:

subproject: kernel:URL    refs/heads/master
subproject: gcc:URL    refs/heads/master

And it allows to define different URL for different branches
(linux-2.6.git for master and linux-2.4.git for old, for example).

Just my 0.02 cents.

Santi

Thanks for the discussion, btw.
I hope we can come up with something that's acceptable to everyone.

skimo
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