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|
module Flavour
( Flavour (..), werror
, DocTargets, DocTarget(..)
, splitSections, splitSectionsIf
) where
import Expression
import Data.Set (Set)
import Packages
-- Please update doc/{flavours.md, user-settings.md} when changing this file.
-- | 'Flavour' is a collection of build settings that fully define a GHC build.
-- Note the following type semantics:
-- * @Bool@: a plain Boolean flag whose value is known at compile time.
-- * @Action Bool@: a flag whose value can depend on the build environment.
-- * @Predicate@: a flag whose value can depend on the build environment and
-- on the current build target.
data Flavour = Flavour {
-- | Flavour name, to select this flavour from command line.
name :: String,
-- | Use these command line arguments.
args :: Args,
-- | Build these packages.
packages :: Stage -> Action [Package],
-- | Either 'integerGmp' or 'integerSimple'.
integerLibrary :: Action Package,
-- | Build libraries these ways.
libraryWays :: Ways,
-- | Build RTS these ways.
rtsWays :: Ways,
-- | Build dynamic GHC programs.
dynamicGhcPrograms :: Action Bool,
-- | Enable GHCi debugger.
ghciWithDebugger :: Bool,
-- | Build profiled GHC.
ghcProfiled :: Bool,
-- | Build GHC with debug information.
ghcDebugged :: Bool,
-- | Whether to build docs and which ones
-- (haddocks, user manual, haddock manual)
ghcDocs :: Action DocTargets }
-- | A set of documentation targets
type DocTargets = Set DocTarget
-- | Documentation targets
--
-- While we can't reasonably expose settings or CLI options
-- to selectively disable, say, base's haddocks, we can offer
-- a less fine-grained choice:
--
-- - haddocks for libraries
-- - non-haddock html pages (e.g GHC's user manual)
-- - PDF documents (e.g haddock's manual)
-- - man pages (GHC's)
--
-- The main goal being to have easy ways to do away with the need
-- for e.g @sphinx-build@ or @xelatex@ and associated packages
-- while still being able to build a(n almost) complete binary
-- distribution.
data DocTarget = Haddocks | SphinxHTML | SphinxPDFs | SphinxMan
deriving (Eq, Ord, Show, Bounded, Enum)
-- | Turn on -Werror for packages built with the stage1 compiler.
-- It mimics the CI settings so is useful to turn on when developing.
werror :: Flavour -> Flavour
werror fl = fl { args = args fl <> (builder Ghc ? notStage0 ? arg "-Werror") }
-- | Transform the input 'Flavour' so as to build with
-- @-split-sections@ whenever appropriate. You can
-- select which package gets built with split sections
-- by passing a suitable predicate. If the predicate holds
-- for a given package, then @split-sections@ is used when
-- building it. If the given flavour doesn't build
-- anything in a @dyn@-enabled way, then 'splitSections' is a no-op.
splitSectionsIf :: (Package -> Bool) -> Flavour -> Flavour
splitSectionsIf pkgPredicate fl = fl { args = args fl <> splitSectionsArg }
where splitSectionsArg = do
way <- getWay
pkg <- getPackage
(Dynamic `wayUnit` way) ? pkgPredicate pkg ?
builder (Ghc CompileHs) ? arg "-split-sections"
-- | Like 'splitSectionsIf', but with a fixed predicate: use
-- split sections for all packages but the GHC library.
splitSections :: Flavour -> Flavour
splitSections = splitSectionsIf (/=ghc)
-- Disable section splitting for the GHC library. It takes too long and
-- there is little benefit.
|
