Use more System.FilePath functions

Author: nlander

ghcide/src/Development/IDE/Core/Actions.hs

@@ -40,7 +40,7 @@ import           Language.LSP.Protocol.Types          (DocumentHighlight (..),
                                                        SymbolInformation (..))
 import           Language.LSP.Server                  (resRootPath)
 import           System.Directory                     (createDirectoryIfMissing, doesFileExist)
-import           System.FilePath                      ((</>), takeDirectory)
+import           System.FilePath                      ((</>), (<.>), takeDirectory)
 
 
 -- | Generates URIs for files in dependencies, but not in the
@@ -80,7 +80,7 @@ lookupMod HieDbWriter{indexQueue} hieFile moduleName uid _boot = MaybeT $ do
         writeOutDir :: FilePath
         writeOutDir = projectRoot </> ".hls" </> "dependencies" </> show uid
         writeOutFile :: FilePath
-        writeOutFile = moduleNameSlashes moduleName ++ ".hs"
+        writeOutFile = moduleNameSlashes moduleName <.> "hs"
         writeOutPath :: FilePath
         writeOutPath = writeOutDir </> writeOutFile
         moduleUri :: Uri

ghcide/src/Development/IDE/Core/Shake.hs

@@ -1132,9 +1132,12 @@ data SourceFileOrigin = FromProject | FromDependency
 
 getSourceFileOrigin :: NormalizedFilePath -> SourceFileOrigin
 getSourceFileOrigin f =
-    case isInfixOf ".hls/dependencies" (show f) of
+    case [".hls", "dependencies"] `isInfixOf` (splitDirectories file) of
         True -> FromDependency
         False -> FromProject
+    where
+        file :: FilePath
+        file = fromNormalizedFilePath f
 
 defineEarlyCutoff'
     :: forall k v. IdeRule k v

ghcide/src/Development/IDE/Types/HscEnvEq.hs

@@ -151,7 +151,7 @@ newHscEnvEqWithImportPaths envImportPaths recorder se hscEnv deps = do
         indexModuleHieFile hieDir m = do
             let hiePath :: NormalizedFilePath
                 hiePath = toNormalizedFilePath' $
-                  hieDir </> moduleNameSlashes (moduleName m) ++ ".hie"
+                  hieDir </> moduleNameSlashes (moduleName m) <.> "hie"
             hieCheck <- checkHieFile recorder se "newHscEnvEqWithImportPaths" hiePath
             case hieCheck of
                 HieFileMissing -> return ()