Added wiki-page search for 5-2-stable, Fixed issue #4310

Created by: coverer

Since the master travis-ci build failed somehow, I applied the patch to a clean 5-2-stable and it works on our production machine.

You can now search for content in wiki pages. It gives the page, but not a snippet of the page, that may be a nice improvement for the future.

app/contexts/search_context.rb

@@ -21,7 +21,15 @@ class SearchContext
     else
       result[:merge_requests] = MergeRequest.where(project_id: project_ids).search(query).limit(10)
       result[:issues] = Issue.where(project_id: project_ids).search(query).limit(10)
-      result[:wiki_pages] = []
+      projects.each do |p|
+        wiki = GollumWiki.new(p)
+#        Rails.logger.info wiki
+        t=wiki.search_i(query)
+#        Rails.logger.info t[0][:wiki].path
+        result[:wiki_pages] += t
+      end
+
+      #result[:wiki_pages] = [] #GollumWiki.where(project_id: project_ids).wiki.search(query)
     end
     result
   end