[Haskell-beginners] Noobie attempt to process log output into dependency graph

[Imants Cekusins]

>  https://github.com/JohnL4/DependencyGraph

A graph library of your choice + State monad would do the trick.
e.g.:  fgl Data-Graph-Inductive-Monad
<https://hackage.haskell.org/package/fgl-5.5.3.0/docs/Data-Graph-Inductive-Monad.html>


Or you could store Graph state in an MVar and work as you would with
stateful approach
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