tree dff83291de0b41368725b6e1ecb9d932f60c31a6
parent 080877e41347b8987977fc8cc3ec90dcd149651a
author Mike Frysinger <vapier@google.com> 1615523041 -0500
committer Mike Frysinger <vapier@google.com> 1615526886 +0000

prune: minor optimization & robustification

If the current project doesn't have any local branches, then there's
nothing to prune, so return right away.  This avoids running a few
git commands when we aren't actually going to use the results, and
it avoids checking repository validity.  Since we aren't going to do
anything in here, no need to check it.

Change-Id: Ie9d5c75a954e42807477299f3e5a63a92fac138b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299742
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>