cab-0.2.7: A maintenance command of Haskell cabal packages

Safe HaskellNone

Distribution.Cab.VerDB

Contents

Synopsis

Types

type PkgName = StringSource

data VerDB Source

Instances

data HowToObtain Source

Constructors

InstalledOnly 
AllRegistered 

Creating

getVerDB :: HowToObtain -> IO VerDBSource

Converting

toList :: VerDB -> [(PkgName, Ver)]Source

Converting VerDB to alist. 

>>> db <- getVerDB InstalledOnly
>>> elem "base" . map fst . toList $ db
True

toMap :: VerDB -> Map PkgName VerSource

Converting VerDB to Map.