Send ref content as a fetch call payload

Git fetch operation is time consuming. To improve performance for small
refs send ref object content as a fetch REST Api call payload. This way
we can avoid git fetch operation.

Bug: Issue 13915
Change-Id: I2b7909f671af4cf99f69210f15ff2f1f95f86445
20 files changed
tree: 7e59aed28b5513d49e15ac892ba4a7a62e06dcf4
  1. src/
  2. BUILD
  3. Jenkinsfile
  4. LICENSE