sync: Enable use of git clone --reference Use git clone to initialize a new repository, and when possible allow callers to use --reference to reuse an existing checkout as the initial object storage area for the new checkout. Change-Id: Ie27f760247f311ce484c6d3e85a90d94da2febfc Signed-off-by: Shawn O. Pearce <sop@google.com> 
3 files changed