Apache Solr support for CVS statistics

A)

+  // TODO: ideally we'd be able to return statistics per branch but that 
+  //       informaiton is not available in the CVS tables.

Sure it is. What do you think the {cvs_files}.branch field is about? ;)

B) $interval = 60 * 60 * 24 * 30 * 2; // 2 months

Seems like a nice thing to use a variable for so it's possible to alter this behavior without changing the code.

C) Probably wise to ensure the node you're indexing is a project that has CVS configured at all before doing any of the rest of this. For example, add this to the top of the function:

if (empty($node->cvs['directory'])) {
  return;
}

That'll help with the "we need to optimize this" part too, since then you're only doing the nasty query on project nodes, not every node we try to index.

Even better would be using project_use_cvs() instead of directly inspecting $node->cvs['directory'], no?

Linking this from the Redesign project #661680: Meta issue for CVS integration because this issue was tagged 'drupal.org redesign'

Moving to git will deprecate this module, so it is not worth adding features.