I just released version 0.12.1, along with binary downloads at the usual place.

The main feature of this new version is that puppetresources can now detect dead code. In order to do so, you must supply it with a site.pp containing explicit references to all the nodes you are using, and run it that way :

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puppetresources -p . -o deadcode +RTS -N4

Also of interest for those writing automated integration test, puppetresources now exits with an error code when something went wrong.