tree f79291705da4b0de042a11d114b94716321f2cf3
parent 208eb6618a670169d31529c9d9396d6d04e261f5
author James E. Blair <jeblair@linux.vnet.ibm.com> 1455988759 -0800
committer James E. Blair <jeblair@linux.vnet.ibm.com> 1455988759 -0800

Cloner: use cache if dest exists

The logic to decide whether or not to use the cache attempted to
detect whether the repo had previously been cloned.  It only did
that by checking whether the destination directory exists.  However,
it's perfectly valid for the dest dir to exist if it is empty.
Adjust the check to look for a .git dir within the dest dir to decide
if the repo has already been cloned.

Change-Id: I17926efcf0f38d6229f0e666e53e6730f455d8ef