commit c1f666650228b7d2d002fd8a42924c8704e8e48f
author Edwin Kempin <ekempin@google.com> Tue Nov 03 12:50:46 2020 +0100
committer Edwin Kempin <ekempin@google.com> Tue Nov 03 15:50:17 2020 +0100
tree c0ce26f9d634c296284b4992e7b25f25e49d474f
parent 0f64b310d9ad28f3d5823b01c4bbf640b6f9624e

Add REST endpoint to get the code owner configuration for a branch

Before the frontend can display any code owner controls on the change
screen it needs to know whether the code owners functionality is enabled
for the destination branch of the change. To find out about this the
frontend currently calls the Get Code Owner Project Config REST
endpoint. The problem is that this REST endpoint returns the code owner
configuration for all branches that exist in the repository and if there
are many branches it gets slow (e.g. > 3s for projects with hundreds of
branches). This latency is too high for the frontend, however the
frontend is only interested in the code owner config of a single branch,
hence we now offer a REST endpoint to get the code owner configuration
for a branch. This REST endpoint is faster, as it doesn't need to
iterate over all branches that exist in the repository, but only needs
to return the config for that one branch.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Ie9de32d9ad5debabc403a69b38009154a82a529e