In rails 3.1 you can use the awesome rake task to copy in migrations as seen below from your engine.
rake my_engine:install:migrations
This normally works perfectly if i direct my Gemfile to the git repository or via :path.
However, if i just use the ruby gem directly
gem 'spud_admin'
my rake task disappears
Any ideas why this rake task disappears?
Issue was resolved. It had something to do with how jeweler had structured the gem environment. Switching to bundler and using rails plugin new seems to have resolved the issue.