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+module Property.User where
+
+import Data.List
+import System.Posix
+import Control.Applicative
+import Data.Maybe
+
+import Property
+import Utility.SafeCommand
+import Utility.Exception
+
+type UserName = String
+
+nonsystem :: UserName -> Property
+nonsystem user = check (isNothing <$> homedir user) $ cmdProperty "adduser"
+ [ Param "--disabled-password"
+ , Param "--gecos", Param ""
+ , Param user
+ ]
+
+homedir :: UserName -> IO (Maybe FilePath)
+homedir user = catchMaybeIO $ homeDirectory <$> getUserEntryForName user