The full-text grep search that gitweb used to have is now gone in gitblit: . There is a "search" within each repo, but it seems to only search commit messages. Can we please have full-text search back?
Topic on Project:Village Pump/Flow
I've investigated this a bit some days ago and now filed bugzilla:49674; it's not that simple, sadly. You can now use the Wikimedia technical search for simple searches, though.
Note that GitHub has both Wikimedia-wide and MediaWiki core code search: