On Sat, 2005-04-16 at 10:04 -0700, Linus Torvalds wrote:
> So I'd _almost_ suggest just starting from a clean slate after all.  
> Keeping the old history around, of course, but not necessarily putting it
> into git now. It would just force everybody who is getting used to git in 
> the first place to work with a 3GB archive from day one, rather than 
> getting into it a bit more gradually.
> What do people think? I'm not so much worried about the data itself: the
> git architecture is _so_ damn simple that now that the size estimate has
> been confirmed, that I don't think it would be a problem per se to put
> 3.2GB into the archive. But it will bog down "rsync" horribly, so it will
> actually hurt synchronization untill somebody writes the rev-tree-like
> stuff to communicate changes more efficiently..

Note that any given copy of a tree doesn't _need_ to keep all the
history back the beginning of time. It's OK if the oldest commit object
in your tree actually refers back to a parent which doesn't exist
locally. I can well imagine that some people will want to keep their
trees pruned to keep only a few weeks of history, while other copies of
the tree will keep everything.

However, if we _don't_ base our current work on an existing import of
the kernel, then we don't retain that option. We can't just change the
'parent' field of your 2.6.12-rc2 import, without changing the sha1 hash
of _everything_ that happens thereafter. 

So I'd say we should take Thomas' import, and base new work on that --
but then possibly leave out the older objects from the 'working'
repository which everyone is rsyncing from; just make them available in
a 'linux-history.git' object database elsewhere.


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