tree cbc9094f1843b1a56b8f8ac90c375cca45c34d47
parent bca9e7704f82284312998687c16a78252b0f9939
author Edwin Kempin <ekempin@google.com> 1614865886 +0100
committer Edwin Kempin <ekempin@google.com> 1614941408 +0100

Compute only as many owned paths as needed, not all

When a code owner approval is applied and when a code owner is added as
a reviewer we post a change message that lists the owned paths. To avoid
that the change messages get too large there is a configurable limit for
the maximum number of paths that should be shown in change messages. If
a user owns more paths the change message includes "(X more files)" to
let the user know about this. For being able to post this message we are
computing all paths of the change that are owned by the user.

Computing owned path is rather expensive and if a change touches many
files this increases the latency of the post review call. To improve the
latency we are now limiting the computation of the owned paths to the
number of paths that we are going to include into the change message, +1
to know if there are more owned files. This means that the change
message can no longer say how many more owned files there are, but
improving the latency seems more important than keeping this number
included. If there are more owned files we will now only say "(more
files)" to let the user know about this.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Id33722dc09144710758db5c84de4772656b9a4b5