Test.DocTest.Internal.Nix

Documentation

fullCompilerVersion :: Version

compilerVersionStr :: String

E.g. 9.0.2

findDirectoryUp :: (FilePath -> IO (Maybe a)) -> MaybeT IO a

Traverse upwards until one of the following conditions is met:

• Current working directory is either root or a home directory
• The predicate function returns Just

findDirectoryUpPredicate :: (FilePath -> IO Bool) -> MaybeT IO FilePath

Like findDirectoryUp, but takes a predicate function instead. If the predicate yields True, the filepath is returned.

findCabalProjectRoot :: MaybeT IO FilePath

Find the root of the Cabal project relative to the current directory.

findLocalPackageDb :: MaybeT IO FilePath

Find the local package database in dist-newstyle.

inNixShell :: IO Bool

Are we running in a Nix shell?

inNixBuild :: IO Bool

Are we running in a Nix build environment?

getLocalCabalPackageDbArgs :: IO [String]

getLocalNixPackageDbArgs :: IO [String]

getGlobalPackageDb :: IO String

Get global package db; used in a NIX_SHELL context

getNixGhciArgs :: IO [String]

Get flags to be used when running in a Nix context (either in a build, or a shell).