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User ghc's cProjectVersionInt to get version information

This commit is contained in:
Daniel Gröber 2014-04-15 17:14:10 +02:00
parent be4172b454
commit bb438feb83
2 changed files with 24 additions and 33 deletions
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47
Language/Haskell/GhcMod/GhcPkg.hs
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@ -21,6 +21,11 @@ import Data.List (isPrefixOf, tails)
import System.FilePath ((</>), takeFileName)
import System.Process (readProcess)
import Config (cProjectVersionInt) -- ghc version
ghcVersion :: Int
ghcVersion = read cProjectVersionInt
-- | Get path to sandbox package db
getSandboxDb :: FilePath -- ^ Path to the cabal package root directory
-- (containing the @cabal.sandbox.config@ file)
@ -87,43 +92,21 @@ ghcDbStackOpts :: [GhcPkgDb] -- ^ Package db stack
-> [String]
ghcDbStackOpts dbs = (ghcDbOpt `concatMap` dbs)
ghcPkgDbOpt :: GhcPkgDb -> [String]
ghcPkgDbOpt GlobalDb = ["--global"]
ghcPkgDbOpt UserDb = ["--user"]
ghcPkgDbOpt (PackageDb pkgDb) =
[noUserPkgDbOpt, pkgDbOpt]
where
ver = extractGhcVer pkgDb
(noUserPkgDbOpt,pkgDbOpt)
| ver < 706 = ("--no-user-package-conf", "--package-conf=" ++ pkgDb)
| otherwise = ("--no-user-package-db", "--package-db=" ++ pkgDb)
ghcPkgDbOpt (PackageDb pkgDb)
| ghcVersion < 706 = ["--no-user-package-conf", "--package-conf=" ++ pkgDb]
| otherwise = ["--no-user-package-db", "--package-db=" ++ pkgDb]
ghcDbOpt :: GhcPkgDb -> [String]
ghcDbOpt GlobalDb = ["-global-package-db"]
ghcDbOpt UserDb = ["-user-package-db"]
ghcDbOpt (PackageDb pkgDb) =
[noUserPkgDbOpt, pkgDbOpt, pkgDb]
where
ver = extractGhcVer pkgDb
(noUserPkgDbOpt,pkgDbOpt)
| ver < 706 = ("-no-user-package-conf", "-package-conf")
| otherwise = ("-no-user-package-db", "-package-db")
-- | Extracting GHC version from the path of package db.
-- Exception is thrown if the string argument is incorrect.
--
-- >>> extractGhcVer "/foo/bar/i386-osx-ghc-7.6.3-packages.conf.d"
-- 706
extractGhcVer :: String -> Int
extractGhcVer dir = ver
where
file = takeFileName dir
findVer = drop 4 . head . filter ("ghc-" `isPrefixOf`) . tails
(verStr1,_:left) = break (== '.') $ findVer file
(verStr2,_) = break (== '.') left
ver = read verStr1 * 100 + read verStr2
ghcDbOpt GlobalDb | ghcVersion < 706 = ["-global-package-conf"]
| otherwise = ["-global-package-db"]
ghcDbOpt UserDb | ghcVersion < 706 = ["-user-package-conf"]
| otherwise = ["-user-package-db"]
ghcDbOpt (PackageDb pkgDb)
| ghcVersion < 706 = ["-no-user-package-conf", "-package-conf", pkgDb]
| otherwise = ["-no-user-package-db", "-package-db", pkgDb]
-- getPackageDbPackages :: FilePath -> IO [Package]
-- getPackageDbPackages cdir = (getPkgDb >>= listDbPackages) `E.catch` handler

10
test/CabalApiSpec.hs
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@ -14,6 +14,12 @@ import System.FilePath
import Dir
import Config (cProjectVersionInt) -- ghc version
ghcVersion :: Int
ghcVersion = read cProjectVersionInt
spec :: Spec
spec = do
describe "parseCabalFile" $ do
@ -31,7 +37,9 @@ spec = do
ghcOptions = ghcOptions res
, includeDirs = map (toRelativeDir dir) (includeDirs res)
}
res' `shouldBe` CompilerOptions {ghcOptions = ["-global-package-db", "-no-user-package-db","-package-db",cwd </> "test/data/.cabal-sandbox/i386-osx-ghc-7.6.3-packages.conf.d","-XHaskell98"], includeDirs = ["test/data","test/data/dist/build","test/data/dist/build/autogen","test/data/subdir1/subdir2","test/data/test"], depPackages = [("Cabal", Nothing), ("base", Nothing) , ("template-haskell", Nothing)]}
if ghcVersion < 706
then res' `shouldBe` CompilerOptions {ghcOptions = ["-global-package-conf", "-no-user-package-conf","-package-conf",cwd </> "test/data/.cabal-sandbox/i386-osx-ghc-7.6.3-packages.conf.d","-XHaskell98"], includeDirs = ["test/data","test/data/dist/build","test/data/dist/build/autogen","test/data/subdir1/subdir2","test/data/test"], depPackages = [("Cabal", Nothing), ("base", Nothing) , ("template-haskell", Nothing)]}
else res' `shouldBe` CompilerOptions {ghcOptions = ["-global-package-db", "-no-user-package-db","-package-db",cwd </> "test/data/.cabal-sandbox/i386-osx-ghc-7.6.3-packages.conf.d","-XHaskell98"], includeDirs = ["test/data","test/data/dist/build","test/data/dist/build/autogen","test/data/subdir1/subdir2","test/data/test"], depPackages = [("Cabal", Nothing), ("base", Nothing) , ("template-haskell", Nothing)]}
describe "cabalDependPackages" $ do