Re: Why repository grows after "git gc"? / Purpose of *.keep files?

On Wed, 14 May 2008, Linus Torvalds wrote:

I think this patch is correct, but I wonder why you removed the pruning 
from revision.c?

In fact, it might be a good idea to not just keep it in revision.c, but 
move it up a bit, so that a commit that is packed and should be ignored 
won't even have its parents put on the list (which means that we not only 
ignore the trees in that commit, but also all parents).

Of course, the more aggressively we prune, the more we end up having to 
depend on the fact that a commit that is in a pack that is marked "keep" 
must *always* have everything that leads to it in that pack or others also 
marked "keep". We effectively have that already (because we've always 
pruned away the commits early), but it's a thing to keep in mind whenever 
we prune even more aggressively.

		Linus