Distribution.Cab.PkgDB

Contents

• Types
• Obtaining PkgDB
• Looking up
• Topological sorting
• To PkgInfo
• From PkgInfo

Synopsis

• type PkgDB = InstalledPackageIndex
• type PkgInfo = InstalledPackageInfo
• getPkgDB :: Maybe FilePath -> IO PkgDB
• getGlobalPkgDB :: IO PkgDB
• getUserPkgDB :: Maybe FilePath -> IO PkgDB
• lookupByName :: PkgName -> PkgDB -> [PkgInfo]
• lookupByVersion :: PkgName -> String -> PkgDB -> [PkgInfo]
• topSortedPkgs :: PkgInfo -> PkgDB -> [PkgInfo]
• toPkgInfos :: PkgDB -> [PkgInfo]
• nameOfPkgInfo :: PkgInfo -> PkgName
• fullNameOfPkgInfo :: PkgInfo -> String
• pairNameOfPkgInfo :: PkgInfo -> (PkgName, String)
• verOfPkgInfo :: PkgInfo -> Ver

Types

Obtaining PkgDB

getSandbox >>= getPkgDB

Looking up

pkgdb <- getGlobalPkgDB
lookupByName "base" pkgdb

pkgdb <- getGlobalPkgDB
lookupByVersion "base" "4.6.0.1" pkgdb

Topological sorting

To PkgInfo

From PkgInfo