The rad-base provides a home for the radicle prelude functionality, living under the
rad directory.
As well as this, there is one module Radicle.Path that exports findModule. This allows
radicle-repl to look up a module based on a path, using rad as a default.
-- | Importing works as follows:
--
-- (1) If the RADPATH environment variable exists, search there
-- (2) Otherwise search in data-dir
-- (3) Finally we search in the current directory.
--
-- RADPATH should be a colon-separated list of directories (just like PATH).
findModule :: FilePath -> IO (Maybe FilePath)
findModule = ...