This loses something of the genericity of the former DBSiteStore (i.e.
it's now tied to MediaWiki's database and sites table, and subclasses
and users can't easily override that), but nothing in core or extensions
in Gerrit was using that genericity so it's probably no big loss.
Further, T113034 (an RFC to actually use this 'site' stuff for its
original purpose) proposes getting rid of SiteStore anyway.
Bug: T114538
Change-Id: I7e7ca257451e6307a7e5bb11fd393283d0d19e77
* SiteLookup interface is added, and SiteStore extends
it. (any SiteStore type hints can be changed to use
SiteLookup if all they need is lookup functionality)
* Memcached based SiteStore code is split from the
database SiteStore, and SiteSQLStore is deprecated.
If no caching is desired when using a SiteStore, then
use a SiteDBStore instance, instead of passing $source
parameter in SiteStore::getSite and SiteStore::getSites.
* SiteListFileCache renamed to FileBasedSiteLookup and
implements SiteLookup.
Bug: T77990
Change-Id: I36b599884c211580ea6806a8a190c65c4f9087cf
