From f57e800a1d1a8e9f2bed34428f7f58a375f178fb Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Sun, 11 Jul 2021 17:56:34 +0200
Subject: WIP splitting of Target module and towards parallel builds

---
 Coolbal/Target/Executable/Make.hs | 48 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Coolbal/Target/Executable/Make.hs

(limited to 'Coolbal/Target/Executable/Make.hs')

diff --git a/Coolbal/Target/Executable/Make.hs b/Coolbal/Target/Executable/Make.hs
new file mode 100644
index 0000000..5bbb80e
--- /dev/null
+++ b/Coolbal/Target/Executable/Make.hs
@@ -0,0 +1,48 @@
+module Coolbal.Target.Executable.Make (makeExeTarget) where
+
+import Data.List (find)
+import Distribution.Compiler (perCompilerFlavorToList, CompilerFlavor(GHC))
+import qualified Distribution.ModuleName as Module
+import Distribution.Types.BuildInfo (BuildInfo(..))
+import Distribution.Types.Executable (Executable(..))
+import Distribution.Types.ExecutableScope (ExecutableScope(ExecutablePublic))
+import Distribution.Types.UnqualComponentName (unUnqualComponentName)
+import Language.Haskell.Extension (knownLanguages)
+
+import Coolbal.CabalPlan
+import Coolbal.DataVersionTag
+import Coolbal.Directory
+import Coolbal.Options (Flags)
+import Coolbal.Target.Executable
+
+
+makeExeTarget :: Flags -> FilePath -> Executable -> CabalPlan -> IO (Maybe ExeTarget)
+makeExeTarget flags projdir exe plan
+  | exeScope exe == ExecutablePublic
+  , let bi = buildInfo exe
+  , buildable bi
+  , all (null . ($ bi)) [asmSources, cmmSources, cSources, cxxSources, jsSources]
+  , all (null . ($ bi)) [virtualModules, autogenModules]
+  , null (defaultExtensions bi)
+  , all (null . ($ bi)) [extraLibs, extraBundledLibs]
+  , let name = unUnqualComponentName (exeName exe)
+  , Just planpkg <- find ((== name) . ppName) (planPackages plan)
+  , Just language <- defaultLanguage bi
+  , True <- language `elem` knownLanguages
+  , Just ghcFlags <- lookup GHC (perCompilerFlavorToList (options bi))
+  , Just deps <- ppDepends planpkg
+  = do let ets = ExeTargetStore
+              { _etsVersionTag = DataVersionTag
+              , etsName = unUnqualComponentName (exeName exe)
+              , etsPkgDbDir = currentHomeDirectory ++ "/.cabal/store/" ++ planCompiler plan ++  "/package.db"
+              , etsDeps = deps
+              , etsLanguage = show language
+              , etsMain = modulePath exe
+              , etsSrcDirs = hsSourceDirs bi
+              , etsModules = map Module.components (otherModules bi)
+              , etsFlags = ghcFlags
+              }
+           ebs = exeBuildSetup projdir ets
+       depgraph <- exeDepGraph flags ets ebs
+       return (Just (elaborateExeTargetWithEBS ebs (ets { etsModules = depgraph })))
+  | otherwise = return Nothing
-- 
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