tree bf0d8a26c9c01707c80b3f913780b289fbaf0a7f
parent a7e4598117df9485c1f6c69099400f83acc1ed8e
author Edwin Kempin <ekempin@google.com> 1618229915 +0200
committer Edwin Kempin <ekempin@google.com> 1620048766 +0000

GetCodeOwnerStatus: Allow to limit the number of returned statuses

Computing all code owner statuses can be expensive for large changes.

Often callers do not need all code owner statuses, hence it should be
possible to limit the result. E.g. the frontend uses this REST endpoint
to show the code owner statuses in the file list on the change screen,
but for large changes the frontend is not showing all files by default,
hence retrieving all code owner statuses in this case would be wasteful.

By default the change screen is showing at most 200 files and if the
user wants to see more/all files they need to expand the file list. The
frontend can set the limit for code owner statuses to 200 now so that
these 200 files can be covered (renames are reported as a single code
owner status, hence also 200 renames are covered).

The start parameter allows to skip file code owner statuses and can be
used to paginate over the code owner statuses.

When the user expands the file list on the change screen to all files
the frontend can use the start parameter to skip the 200 code owner
statuses that it already has.

Change-Id: I80acb3d1ea04d13db72700623c72dd8c4bf5f63a
Signed-off-by: Edwin Kempin <ekempin@google.com>