DEV: Allow rebaking oncooked posts of single site

lib/tasks/posts.rake

@@ -8,7 +8,16 @@ task 'posts:rebake' => :environment do
 end
 
 task 'posts:rebake_uncooked_posts' => :environment do
-  RailsMultisite::ConnectionManagement.each_connection do
+  ENV['RAILS_DB'] ? rebake_uncooked_posts : rebake_uncooked_posts_all_sites
+end
+
+def rebake_uncooked_posts_all_sites
+  RailsMultisite::ConnectionManagement.each_connection do |db|
+    rebake_uncooked_posts
+  end
+end
+
+def rebake_uncooked_posts
   puts "Rebaking uncooked posts on #{RailsMultisite::ConnectionManagement.current_db}"
   uncooked = Post.where('baked_version <> ? or baked_version IS NULL', Post::BAKED_VERSION)
 
@@ -22,7 +31,6 @@ task 'posts:rebake_uncooked_posts' => :environment do
 
   puts "", "#{rebaked} posts done!", ""
 end
-end
 
 desc 'Update each post with latest markdown and refresh oneboxes'
 task 'posts:refresh_oneboxes' => :environment do