tree 1cffe8042bd0ea9a127699a84a08039e3b0936f7
parent 6ed1372550e3b1be4062a65baab1529c86a8be6a
author Nathan Mulcahey <nmulcahey@google.com> 1561133705 -0700
committer Nathan Mulcahey <nmulcahey@google.com> 1561143231 -0700

[cache] Skip cache updates if they contain the required revision

On my local machine, a no-op cache update now takes 0.713s, previously
it was 4.676s.

Change-Id: I457ac39c68400e64869fb6769c4a958a392dba0c