Joe Perches <joe@perches.com> wrote:

> Umm, no, that's not correct.
> SHA-1 lengths of 12 are unique for quite awhile yet.
> 
> https://blog.cuviper.com/2013/11/10/how-short-can-git-abbreviate/

The article says:

	1.9% at 12

which is for 3253824 objects (I get 1.86%).

However, that was three years ago, and we now have over five million objects,
so the collision possibility is 4.5% now.

If we add another 2 million over the next three years, then the probability
will be over 8% then.

I've attached my spreadsheet for you to have a look at.

> No.  Use --format=email as appropriate instead.

Fix checkpatch.  This is an entirely reasonable supposition.

David