rebar/rebar — pull request #188 by massemanet (2013-12-06 10:30:05+00:00)
Title: Xref extra path

introduce the config "xref_extra_paths".
xref_extra_paths is a (possibly empty) list of paths, which are added to the xref library path (using xref:set_library_path/2). Non-existing paths are filtered out.
This feature adds some flexibility in specifying code that is called by my application, but is not a rebar dependency.