--- | Parse the environment and return the node\/instance names.
---
--- This also hardcodes here the default node\/instance file names.
-parseEnv :: () -> IO (String, String)
-parseEnv () = do
- a <- getEnvDefault "HTOOLS_NODES" "nodes"
- b <- getEnvDefault "HTOOLS_INSTANCES" "instances"
- return (a, b)
-