git-annex/TrustLevel.hs

23 lines
520 B
Haskell

{- git-annex trust levels
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module TrustLevel (
TrustLevel(..),
) where
data TrustLevel = SemiTrusted | UnTrusted | Trusted
deriving Eq
instance Show TrustLevel where
show SemiTrusted = "?"
show UnTrusted = "0"
show Trusted = "1"
instance Read TrustLevel where
readsPrec _ "1" = [(Trusted, "")]
readsPrec _ "0" = [(UnTrusted, "")]
readsPrec _ _ = [(SemiTrusted, "")]