The infra team has an eventual goal of migrating everything from Rietveld to Gerrit. This is a tracking bug for the end of that effort: when all of our code reviews have moved to gerrit and Rietveld will be left as an archive of previous review activity.
Valid concerns raised in the initial announcement email:
It's useful to be able to comment on previously-landed CLs, e.g. "why was this line written like this" or "this breaks Foo", and have the comments sent out to the original author and reviewers. Will that be impossible in read-only mode?
Will the ability to revert from Rietveld be maintained (even if it creates a CL in Gerrit)? This is probably only important during the transition period but it's a useful tool for sheriffs/gardeners.
(Both of these would be non-issues if a migration of changes to Gerrit happens before too long after the switch.)
Additional repos in this set which are surprise github mirrors:
chromium/dom-distiller
external/robolectric
external/py_trace_event
external/mojo
Repos which are surprise *manually maintained* github mirrors:
external/netty4
external/netty-tcnative
Of those, dom-distiller is the only one to have actual reviews on Rietveld, and it is being deprecated. The others either actively use github (netty, robolectric), have moved (mojo), or bypass review entirely (py_trace_event).
The only repos that are still configured to upload changes to Rietveld are those which are hosted on GitHub. Working on the mirroring solution for those (see blocking bugs) and then we can finish work on this.
