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-- cabal-helper: Simple interface to Cabal's configuration state
-- Copyright (C) 2015-2018 Daniel Gröber <cabal-helper@dxld.at>
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
{-# LANGUAGE DeriveGeneric, DeriveDataTypeable, DefaultSignatures,
KindSignatures, ImplicitParams, ConstraintKinds #-}
{-|
Module : CabalHelper.Compiletime.Types
Description : Types used throughout
License : GPL-3
-}
module CabalHelper.Compiletime.Types where
import Data.Version
import Data.Typeable
import GHC.Generics
type Env = (?opts :: CompileOptions)
-- | Paths or names of various programs we need.
data Programs = Programs {
-- | The path to the @cabal@ program.
cabalProgram :: FilePath,
-- | The path to the @ghc@ program.
ghcProgram :: FilePath,
-- | The path to the @ghc-pkg@ program. If
-- not changed it will be derived from the path to 'ghcProgram'.
ghcPkgProgram :: FilePath
} deriving (Eq, Ord, Show, Read, Generic, Typeable)
-- | Default all programs to their unqualified names, i.e. they will be searched
-- for on @PATH@.
defaultPrograms :: Programs
defaultPrograms = Programs "cabal" "ghc" "ghc-pkg"
data CompileOptions = CompileOptions
{ oVerbose :: Bool
, oCabalPkgDb :: Maybe PackageDbDir
, oCabalVersion :: Maybe Version
, oPrograms :: Programs
}
oCabalProgram :: Env => FilePath
oCabalProgram = cabalProgram $ oPrograms ?opts
oGhcProgram :: Env => FilePath
oGhcProgram = ghcProgram $ oPrograms ?opts
oGhcPkgProgram :: Env => FilePath
oGhcPkgProgram = ghcPkgProgram $ oPrograms ?opts
defaultCompileOptions :: CompileOptions
defaultCompileOptions =
CompileOptions False Nothing Nothing defaultPrograms
newtype PackageDbDir = PackageDbDir { unPackageDbDir :: FilePath }
|
