alphagov/rummager — pull request #188 by rboulton (2014-02-14 12:14:09+00:00)
Title: Fix bug in check for index existing.

Elasticsearch 0.90+ raises a 404 instead of returning an empty response
on the _aliases endpoint when an alias doesn't exist; this change makes
index.exists? handle this response, and in turn allows
rummager:migrate_index work when there aren't existing indexes