Formatting via Ormolu plugin

.gitmodules

@@ -1,3 +1,10 @@
-[submodule "ghcide"]
-	path = ghcide
-	url = https://github.com/digital-asset/ghcide.git
+# To remove a submodule you need to:
+#
+#     Delete the relevant section from the .gitmodules file.
+#     Stage the .gitmodules changes git add .gitmodules
+#     Delete the relevant section from .git/config.
+#     Run git rm --cached path_to_submodule (no trailing slash).
+#     Run rm -rf .git/modules/path_to_submodule
+#     Commit git commit -m "Removed submodule <name>"
+#     Delete the now untracked submodule files
+#     rm -rf path_to_submodule

cabal.project

@@ -1,6 +1,6 @@
 packages:
          ./
-         ghcide
+         -- ghcide
 
 tests: true
 
@@ -11,7 +11,4 @@ package ghcide
 
 write-ghc-environment-files: never
 
--- pre-brexit
--- A later version (2020-02-01T08:48:32Z) has a problem with a diamond
--- dependency for cabal-helper and cabal-plan
-index-state: 2020-01-31T21:11:24Z
+index-state: 2020-02-04T19:45:47Z

exe/Main.hs

@@ -8,59 +8,65 @@
 module Main(main) where
 
 import Arguments
-import Data.Maybe
-import Data.List.Extra
-import System.FilePath
 import Control.Concurrent.Extra
 import Control.Exception
 import Control.Monad.Extra
 import Control.Monad.IO.Class
 import Data.Default
-import System.Time.Extra
+import Data.List.Extra
+import qualified Data.Map.Strict as Map
+import Data.Maybe
+import qualified Data.Set as Set
+import qualified Data.Text as T
+import qualified Data.Text.IO as T
 import Development.IDE.Core.FileStore
 import Development.IDE.Core.OfInterest
-import Development.IDE.Core.Service
+import Development.IDE.Core.RuleTypes
 import Development.IDE.Core.Rules
+import Development.IDE.Core.Service
 import Development.IDE.Core.Shake
-import Development.IDE.Core.RuleTypes
+import Development.IDE.GHC.Util
+import Development.IDE.LSP.LanguageServer
 import Development.IDE.LSP.Protocol
-import Development.IDE.Types.Location
+import Development.IDE.Plugin
 import Development.IDE.Types.Diagnostics
-import Development.IDE.Types.Options
+import Development.IDE.Types.Location
 import Development.IDE.Types.Logger
-import Development.IDE.GHC.Util
-import Development.IDE.Plugin
-import qualified Data.Text as T
-import qualified Data.Text.IO as T
+import Development.IDE.Types.Options
+import Development.Shake (Action, action)
+import GHC hiding (def)
+import HIE.Bios
 import Language.Haskell.LSP.Messages
 import Language.Haskell.LSP.Types (LspId(IdInt))
 import Linker
-import Development.IDE.LSP.LanguageServer
 import System.Directory.Extra as IO
-import System.IO
 import System.Exit
-import Development.Shake (Action, action)
-import qualified Data.Set as Set
-import qualified Data.Map.Strict as Map
-
-import GHC hiding (def)
-
-import HIE.Bios
+import System.FilePath
+import System.IO
+import System.Time.Extra
 
 -- ---------------------------------------------------------------------
 
 import Development.IDE.Plugin.CodeAction  as CodeAction
 import Development.IDE.Plugin.Completions as Completions
 import Ide.Plugin.Example                 as Example
+import Ide.Plugin.Ormolu                  as Ormolu
 
 -- ---------------------------------------------------------------------
 
+-- The plugins configured for use in this instance of the language
+-- server.
+-- These can be freely added or removed to tailor the available
+-- features of the server.
 idePlugins :: Bool -> Plugin
 idePlugins includeExample
   = Completions.plugin <>
     CodeAction.plugin <>
+    Ormolu.plugin <>
     if includeExample then Example.plugin else mempty
 
+-- ---------------------------------------------------------------------
+
 main :: IO ()
 main = do
     -- WARNING: If you write to stdout before runLanguageServer
@@ -100,7 +106,9 @@ main = do
         putStrLn "Report bugs at https://github.com/haskell/haskell-language-server/issues"
 
         putStrLn $ "\nStep 1/6: Finding files to test in " ++ dir
-        files <- nubOrd <$> expandFiles (argFiles ++ ["." | null argFiles])
+        files <- expandFiles (argFiles ++ ["." | null argFiles])
+        -- LSP works with absolute file paths, so try and behave similarly
+        files <- nubOrd <$> mapM canonicalizePath files
         putStrLn $ "Found " ++ show (length files) ++ " files"
 
         putStrLn "\nStep 2/6: Looking for hie.yaml files that control setup"
@@ -123,7 +131,11 @@ main = do
         let grab file = fromMaybe (head sessions) $ do
                 cradle <- Map.lookup file filesToCradles
                 Map.lookup cradle cradlesToSessions
-        ide <- initialise def mainRule (pure $ IdInt 0) (showEvent lock) (logger Info) (defaultIdeOptions $ return $ return . grab) vfs
+
+        let options =
+              (defaultIdeOptions $ return $ return . grab)
+                    { optShakeProfiling = argsShakeProfiling }
+        ide <- initialise def mainRule (pure $ IdInt 0) (showEvent lock) (logger Info) options vfs
 
         putStrLn "\nStep 6/6: Type checking the files"
         setFilesOfInterest ide $ Set.fromList $ map toNormalizedFilePath files
@@ -164,7 +176,7 @@ showEvent lock (EventFileDiagnostics (toNormalizedFilePath -> file) diags) =
 showEvent lock e = withLock lock $ print e
 
 
-cradleToSession :: Cradle -> IO HscEnvEq
+cradleToSession :: Cradle a -> IO HscEnvEq
 cradleToSession cradle = do
     cradleRes <- getCompilerOptions "" cradle
     opts <- case cradleRes of

haskell-language-server.cabal

@@ -29,6 +29,7 @@ library
   exposed-modules:
       Ide.Cradle
       Ide.Plugin.Example
+      Ide.Plugin.Ormolu
       Ide.Version
   other-modules:
       Paths_haskell_language_server
@@ -50,7 +51,7 @@ library
     , filepath
     , fuzzy
     , ghc
-    , ghcide
+    , ghcide >= 0.1
     , gitrev
     , haddock-library
     , hashable
@@ -77,6 +78,9 @@ library
     , transformers
     , unordered-containers
     , utf8-string
+  if impl(ghc >= 8.6)
+     build-depends: ormolu >= 0.0.3.1
+
   ghc-options:
          -Wall
          -Wredundant-constraints
@@ -121,7 +125,7 @@ executable haskell-language-server
     , ghcide
     , gitrev
     , haskell-lsp
-    , hie-bios >= 0.3.2 && < 0.4
+    , hie-bios >= 0.4
     , hslogger
     , haskell-language-server
     , optparse-applicative