Distribution.Nixpkgs.Haskell.PackageSourceSpec

Documentation

data Package

Constructors

Package

Fields

• pkgSource :: DerivationSource
• pkgRanHpack :: Bool

  If hpack generated a new cabal file

• pkgCabal :: GenericPackageDescription

Instances

Show Package

Methods

showsPrec :: Int -> Package -> ShowS

show :: Package -> String

showList :: [Package] -> ShowS

getPackage

Arguments

:: Bool

Whether hpack should regenerate the cabal file.

-> Maybe FilePath

The path to the Hackage database.

-> Maybe UTCTime

If we have hackage-snapshot time.

-> Source

-> IO Package

getPackage'

Arguments

:: Bool

Whether hpack should regenerate the cabal file.

-> IO HackageDB

-> Source

-> IO Package

loadHackageDB

Arguments

:: Maybe FilePath

The path to the Hackage database.

-> Maybe UTCTime

If we have hackage-snapshot time.

-> IO HackageDB

sourceFromHackage :: Hash -> String -> FilePath -> IO DerivationSource