Re: [git patches] libata updates, GPG signed (but see admin notes)

On Fri, 04 Nov 2011 08:14:52 PDT, Linus Torvalds said:

On Fri, Nov 4, 2011 at 7:59 AM, Ted Ts'o [off-list ref] wrote:

quoted

Note that a repository format change will break a bunch of other
things as well, including references in commit descriptions ("This
fixes a regression introduced in commit 42DEADBEEF")

No they won't. Not if you do it right. It's easy enough to
automatically replace the SHA1's in the description, the same way we
replace everything else.

OK.. I'll bite.  How do you disambiguate a '42deadbeef' in the changelog part
of a commit as being a commit ID, as opposed to being an address in a traceback
or something similar? Yes, I know you only change the ones that actually map to
a commit ID, but I'd not be surprised if by now we've got enough commits and
stack tracebacks in the git history that we'll birthday-paradox ourselves into
a false-positive in an automatic replacement.

(And it's OK to say "the 3 stack tracebacks in changelogs we just mangled can
just go jump", but it does need at least a few seconds consideration..)