Send small refs as a fetch call payload

To improve performance of fetch operation if total size of
the ref is smaller than 'payloadMaxRefSize' parameter send
all objects for that ref as a REST Api call payload.
Otherwise use git fetch operation.

Bug: Issue 13915
Change-Id: I3b39bd57120016617128f841a62c66341b968fb0
6 files changed
tree: 128259805e04b39e3529eb64a717c5eade40dcb6
  1. src/
  2. BUILD
  3. Jenkinsfile
  4. LICENSE