until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:distribution-opensuse is:exact -package:hledger-web -package:protolude -package:Cabal -package:classy-prelude -package:clash-prelude -package:ghc-lib-parser -package:ghc package:utility-ht
repeat action until result fulfills condition