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-- A program for generating a Gentoo ebuild from a .cabal file
--
-- Author : Duncan Coutts <dcoutts@gentoo.org>
--
-- Created: 21 July 2005
--
-- Copyright (C) 2005 Duncan Coutts
--
-- This library 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 2
-- of the License, or (at your option) any later version.
--
-- This library 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.
--
-- |
-- Maintainer : haskell@gentoo.org
--
-- cabal2ebuild - a program for generating a Gentoo ebuild from a .cabal file
--
module Cabal2Ebuild
(cabal2ebuild
,convertDependencies
,convertDependency) where
import qualified Distribution.PackageDescription as Cabal
(PackageDescription(..))
import qualified Distribution.Package as Cabal (PackageIdentifier(..)
, Dependency(..)
, PackageName(..))
import qualified Distribution.Version as Cabal (VersionRange, foldVersionRange')
import Distribution.Text (display)
import Data.Char (isUpper)
import Portage.Dependency
import qualified Portage.Cabal as Portage
import qualified Portage.PackageId as Portage
import qualified Portage.EBuild as Portage
import qualified Portage.GHCCore as Portage
import qualified Portage.Resolve as Portage
import qualified Portage.EBuild as E
import qualified Portage.Overlay as O
import Portage.Version
cabal2ebuild :: Cabal.PackageDescription -> Portage.EBuild
cabal2ebuild pkg = Portage.ebuildTemplate {
E.name = Portage.cabal_pn_to_PN cabal_pn,
E.hackage_name= cabalPkgName,
E.version = display (Cabal.pkgVersion (Cabal.package pkg)),
E.description = if null (Cabal.synopsis pkg) then Cabal.description pkg
else Cabal.synopsis pkg,
E.long_desc = if null (Cabal.description pkg) then Cabal.synopsis pkg
else Cabal.description pkg,
E.homepage = thisHomepage,
E.license = Portage.convertLicense $ Cabal.license pkg,
E.slot = (E.slot E.ebuildTemplate) ++ maybe [] (const "/${PV}") (Cabal.library pkg),
E.my_pn = if any isUpper cabalPkgName then Just cabalPkgName else Nothing,
E.features = E.features E.ebuildTemplate
++ (if hasExe then ["bin"] else [])
++ maybe [] (const (["lib","profile","haddock","hoogle"]
++ if cabalPkgName == "hscolour" then [] else ["hscolour"])
) (Cabal.library pkg) -- hscolour can't colour its own sources
++ (if hasTests then ["test-suite"] else [])
} where
cabal_pn = Cabal.pkgName $ Cabal.package pkg
cabalPkgName = display cabal_pn
hasExe = (not . null) (Cabal.executables pkg)
hasTests = (not . null) (Cabal.testSuites pkg)
thisHomepage = if (null $ Cabal.homepage pkg)
then E.homepage E.ebuildTemplate
else Cabal.homepage pkg
convertDependencies :: O.Overlay -> Portage.Category -> [Cabal.Dependency] -> [Dependency]
convertDependencies overlay category = map (convertDependency overlay category)
convertDependency :: O.Overlay -> Portage.Category -> Cabal.Dependency -> Dependency
convertDependency _overlay _category (Cabal.Dependency pname@(Cabal.PackageName _name) _)
-- no explicit dep on core libs.
-- TODO: the same is done when filtering in
-- merge phase in a more robust way. Do we need it?
| pname `elem` Portage.coreLibs = empty_dependency
convertDependency overlay category (Cabal.Dependency pname versionRange)
= convert versionRange
where
pn = case Portage.resolveFullPortageName overlay pname of
Just r -> r
Nothing -> Portage.PackageName category (Portage.normalizeCabalPackageName pname)
mk_p :: DRange -> Dependency
mk_p dr = Atom pn dr (DAttr AnySlot [])
p_v v = fromCabalVersion v
convert :: Cabal.VersionRange -> Dependency
convert = Cabal.foldVersionRange'
( mk_p (DRange ZeroB InfinityB) -- ^ @\"-any\"@ version
)(\v -> mk_p (DExact (p_v v)) -- ^ @\"== v\"@
)(\v -> mk_p (DRange (StrictLB (p_v v)) InfinityB) -- ^ @\"> v\"@
)(\v -> mk_p (DRange ZeroB (StrictUB (p_v v))) -- ^ @\"< v\"@
)(\v -> mk_p (DRange (NonstrictLB (p_v v)) InfinityB) -- ^ @\">= v\"@
)(\v -> mk_p (DRange ZeroB (NonstrictUB (p_v v))) -- ^ @\"<= v\"@
)(\v1 v2 -> mk_p (DRange (NonstrictLB (p_v v1)) (StrictUB (p_v v2))) -- ^ @\"== v.*\"@ wildcard. (incl lower, excl upper)
)(\g1 g2 -> DependAnyOf [g1, g2] -- ^ @\"_ || _\"@ union
)(\r1 r2 -> DependAllOf [r1, r2] -- ^ @\"_ && _\"@ intersection
)(\dp -> dp -- ^ @\"(_)\"@ parentheses
)
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