until -package:numeric-prelude -package:util -package:xmonad-contrib -package:base-compat is:exact -package:faktory -package:elerea -package:classy-prelude -package:llvm-hs-pure -package:cabal-install-solver -package:LambdaHack package:utility-ht

until :: Monad m => (a -> Bool) -> m a -> m a
utility-ht Control.Monad.HT
repeat action until result fulfills condition