Re: git bugs
From: Ben Lynn <hidden>
Date: 2016-06-15 22:44:43
So I really prefer not to. But you can take it up with Junio if you think it can be a big deal.
I began writing a patch but I abandoned it. I don't have much experience with the code base and I'd almost certainly miss a bunch of corner cases. Your patch seems to be the easiest way to go. I'm not motivated to push pre-emptive smudging, even if it might be more efficient. After all, how often does this race condition come up? But I have a per-file flagged version of the index for personal use, and it's good to know that it's a valid strategy.
Historically, we *never* did it. In fact, it was a big deal. These days we do it opportunistically for "git diff" if we can, but making sure that it all still works for a read-only access (think gitweb etc - the reader is *not* necessarily the owner of the archive at all!)
I hadn't thought about this case. This is intriguing: why does gitweb need access to the index? I thought the index was only to make operations fast for users intending to make changes to the repo. Why can't servers run stripped-down versions of git that don't bother with an index? -Ben