This is a simple redirection service for Mozilla's old code-review system, MozReview. The purpose of this service is to redirect old MozReview links to useful, related URLs.

Currently, this service provides the following redirects:

Review request URLs
URLs of the form /r/<id>/ redirect to their associated bug on BMO.
Review request diff URLs
URLs of the form /r/<id>/diff/[<revision>/] redirect to the associated commit in the review-repo archive. Note that, at the moment, all revisions of a given diff redirect to the last (i.e. most recent) diff. You can find older diffs by searching the archive for the MozReview-Commit-ID:<repo>/log?rev=MozReview-Commit-ID:+<id> (example).