Re: [PATCH 2/3] rev-list: Introduce --no-output to avoid /dev/null redirects

Shawn O. Pearce, Thu, Nov 08, 2007 09:00:52 +0100:

Some uses of git-rev-list are to run it with --objects to see if
a range of objects between two or more commits is fully connected
or not.  In such a case the caller doesn't care about the actual
object names or hash hints so formatting this data only for it to
be dumped to /dev/null by a redirect is a waste of CPU time.  If
all the caller needs is the exit status then --no-output can be
used to bypass the commit and object formatting.

We already have --quiet and even --exit-code.