Re: [PATCH] Add --show-touched option to show "diff --git" line when contents are unchanged

Junio C Hamano [off-list ref] writes:

Linus Torvalds [off-list ref] writes:

quoted

Doing a "git diff" cannot actually update the index (since it very
much has to work on a read-only setup too), which is why the index
_stays_ stale unless something is done (eg "git status") to refresh
it. And it's that stale index that continues to make for bad
performance without any indication of why that is a problem.

Indeed.

At least, I am now glad to know that somebody else is of the same
opinion as I am.

I don't want a system to tell me when it is shooting itself in the
foot.  It should not be doing this in the first place.

File systems have automatic fsck procedures enforced regularly, too,
to keep them operative. If git finds that it is getting inefficient,
it should just mark the index as "regenerate at next access".  And
then do it.

-- 
David Kastrup