Gitorious::Search

This is a WIP, extracting search functionality from Gitorious into a separate gem. Apart from this allowing us to actually build a search API instead of marrying ThinkingSphinx, this should let us use different versions of ThinkingSphinx based on the current Ruby version (TS 3.x doesn't support Ruby 1.8).

Functionality

There's a Railtie in lib/gitorious/search.rb which loads a compatibility index definition for legacy TS versions. Newer TS versions will automatically add app/indices to the Rails load path, so these files should be silently ignored by legacy TS versions.

The next step would be to extract actual searches, as used in app/controllers/searches_controller.rb in Gitorious mainline. We could also provide other search backends in here, which could make a lot of sense. However:

Problems with this approach

Removing thinking_sphinx and adding gitorious-search into mainline's Gemfile will add a dependency on either 2.x or 3.x of Thinking Sphinx into Gemfile.lock in mainline. This means that:

• we would need to ensure that bundle is run with Ruby 1.9 before adding Gemfile.lock to Git
• Ruby 1.8 users would need to either ignore Gemfile.lock or regenerate it locally.

This gem has not been pushed to rubygems.org until we decide how to deal with this.