From 8d8a91f831af8f12fc8ef7dff46271bca8209916 Mon Sep 17 00:00:00 2001
From: Daniel Gröber <dxld@darkboxed.org>
Date: Thu, 5 May 2016 22:53:22 +0200
Subject: Fixes for Cabal HEAD

---
 CabalHelper/Compile.hs |  8 ++++----
 CabalHelper/Main.hs    | 27 +++++++++++++++++++++++----
 CabalHelper/Types.hs   |  2 +-
 3 files changed, 28 insertions(+), 9 deletions(-)

(limited to 'CabalHelper')

diff --git a/CabalHelper/Compile.hs b/CabalHelper/Compile.hs
index f84b2e8..2d9628c 100644
--- a/CabalHelper/Compile.hs
+++ b/CabalHelper/Compile.hs
@@ -167,9 +167,9 @@ compile distdir opts@Options {..} Compile {..} = do
     vLog opts $ "outdir: " ++ outdir
     vLog opts $ "exedir: " ++ exedir
 
-    let (mj, mi) = case compCabalVersion of
-                     Left _commitid -> (1, 10000)
-                     Right (Version (x:y:_) _) -> (x, y)
+    let (mj:mi:_) = case compCabalVersion of
+                     Left _commitid -> [1, 10000]
+                     Right (Version vs _) -> vs
     let ghc_opts =
              concat [
           [ "-outputdir", outdir
@@ -370,7 +370,7 @@ unpackCabalHEAD tmpdir = do
   let dir = tmpdir </> "cabal-head.git"
       url = "https://github.com/haskell/cabal.git"
   ExitSuccess <- rawSystem "git" [ "clone", "--depth=1", url, dir]
-  commit <- trim <$> readProcess "git" ["rev-parse", "HEAD"] ""
+  commit <- trim <$> readProcess "git" ["-C", dir, "rev-parse", "HEAD"] ""
   return (dir </> "Cabal", commit)
 
 errorInstallCabal :: Version -> FilePath -> a
diff --git a/CabalHelper/Main.hs b/CabalHelper/Main.hs
index f35ed3f..7c0d15a 100644
--- a/CabalHelper/Main.hs
+++ b/CabalHelper/Main.hs
@@ -204,8 +204,7 @@ main = do
       return $ Just $ ChResponseFlags $ sort nonDefaultFlags
 
     "write-autogen-files":[] -> do
-       -- calls writeAutogenFiles
-      initialBuildSteps distdir pd lbi v
+      initialBuildStepsForAllComponents distdir pd lbi v
       return Nothing
 
     "compiler-version":[] -> do
@@ -328,6 +327,8 @@ componentsMap lbi v distdir f = do
 
     lr <- newIORef []
 
+    -- withComponentsLBI is deprecated but also exists in very old versions
+    -- it's equivalent to withAllComponentsInBuildOrder in newer versions
     withComponentsLBI pd lbi $ \c clbi -> do
         let bi = componentBuildInfo c
             name = componentNameFromComponent c
@@ -354,12 +355,20 @@ componentOptions' (lbi, v, distdir) inplaceFlag flags rf f = do
 componentOptions (lbi, v, distdir) inplaceFlag flags f =
     componentOptions' (lbi, v, distdir) inplaceFlag flags renderGhcOptions' f
 
-componentNameToCh CLibName = ChLibName
+#if CABAL_MAJOR == 1 && CABAL_MINOR < 25
+componentNameToCh CLibName = ChLibName ""
+#elif CABAL_MAJOR == 1 && CABAL_MINOR >= 25
+componentNameToCh (CLibName n) = ChLibName n
+#endif
 componentNameToCh (CExeName n) = ChExeName n
 componentNameToCh (CTestName n) = ChTestName n
 componentNameToCh (CBenchName n) = ChBenchName n
 
+#if CABAL_MAJOR == 1 && CABAL_MINOR < 25
 componentNameFromComponent (CLib Library {}) = CLibName
+#elif CABAL_MAJOR == 1 && CABAL_MINOR >= 25
+componentNameFromComponent (CLib Library {..}) = CLibName libName
+#endif
 componentNameFromComponent (CExe Executable {..}) = CExeName exeName
 componentNameFromComponent (CTest TestSuite {..}) = CTestName testName
 componentNameFromComponent (CBench Benchmark {..}) = CBenchName benchmarkName
@@ -450,10 +459,20 @@ renderGhcOptions' lbi v opts = do
   (ghcProg, _) <- requireProgram v ghcProgram (withPrograms lbi)
   let Just ghcVer = programVersion ghcProg
   return $ renderGhcOptions ghcVer opts
-#elif CABAL_MAJOR == 1 && CABAL_MINOR >= 22 && CABAL_MINOR < 24
+#elif CABAL_MAJOR == 1 && CABAL_MINOR >= 20 && CABAL_MINOR < 24
 -- && CABAL_MINOR < 24
   return $ renderGhcOptions (compiler lbi) opts
 #elif CABAL_MAJOR == 1 && CABAL_MINOR >= 24
 --  CABAL_MAJOR == 1 && CABAL_MINOR >= 24
   return $ renderGhcOptions (compiler lbi) (hostPlatform lbi) opts
 #endif
+
+
+#if CABAL_MAJOR == 1 && CABAL_MINOR < 25
+initialBuildStepsForAllComponents distdir pd lbi v =
+  initialBuildSteps distdir pd lbi v
+#elif CABAL_MAJOR == 1 && CABAL_MINOR >= 25
+initialBuildStepsForAllComponents distdir pd lbi v =
+  withComponentsLBI pd lbi $ \_c clbi ->
+    initialBuildSteps distdir pd lbi clbi v
+#endif
diff --git a/CabalHelper/Types.hs b/CabalHelper/Types.hs
index 6b2ac70..0ee7ec2 100644
--- a/CabalHelper/Types.hs
+++ b/CabalHelper/Types.hs
@@ -24,7 +24,7 @@ newtype ChModuleName = ChModuleName String
     deriving (Eq, Ord, Read, Show, Generic)
 
 data ChComponentName = ChSetupHsName
-                     | ChLibName
+                     | ChLibName String
                      | ChExeName String
                      | ChTestName String
                      | ChBenchName String
-- 
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