Add plugins conditionally at compile time

exe/Main.hs

@@ -1,75 +1,14 @@
 -- Copyright (c) 2019 The DAML Authors. All rights reserved.
 -- SPDX-License-Identifier: Apache-2.0
-{-# LANGUAGE CPP               #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RecordWildCards   #-}
 module Main(main) where
 
 import           Ide.Arguments             (Arguments (..), LspArguments (..),
                                             getArguments)
 import           Ide.Main                  (defaultMain)
-import           Ide.Types                 (IdePlugins)
+import           Plugins
 
- -- haskell-language-server plugins
-
-import           Ide.Plugin.Eval           as Eval
-import           Ide.Plugin.Example        as Example
-import           Ide.Plugin.Example2       as Example2
-import           Ide.Plugin.Floskell       as Floskell
-import           Ide.Plugin.Fourmolu       as Fourmolu
-import           Ide.Plugin.GhcIde         as GhcIde
-import           Ide.Plugin.ExplicitImports as ExplicitImports
-import           Ide.Plugin.Ormolu         as Ormolu
-import           Ide.Plugin.Retrie         as Retrie
-import           Ide.Plugin.StylishHaskell as StylishHaskell
-import           Ide.Plugin.Tactic         as Tactic
-import           Ide.Plugin.Hlint          as Hlint
-#if AGPL
-import           Ide.Plugin.Brittany       as Brittany
-#endif
-import           Ide.Plugin                (pluginDescToIdePlugins)
-import           Ide.Plugin.ModuleName     as ModuleName
-import           Ide.Plugin.Pragmas        as Pragmas
-
-
--- ---------------------------------------------------------------------
-
--- | 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 -> IdePlugins
-idePlugins includeExamples = pluginDescToIdePlugins allPlugins
-  where
-    allPlugins = if includeExamples
-                   then basePlugins ++ examplePlugins
-                   else basePlugins
-    basePlugins =
-      [ GhcIde.descriptor  "ghcide"
-      , Pragmas.descriptor  "pragmas"
-      , Floskell.descriptor "floskell"
-      , Fourmolu.descriptor "fourmolu"
-      , Tactic.descriptor "tactic"
-      -- , genericDescriptor     "generic"
-      -- , ghcmodDescriptor      "ghcmod"
-      , Ormolu.descriptor   "ormolu"
-      , StylishHaskell.descriptor "stylish-haskell"
-      , Retrie.descriptor "retrie"
-#if AGPL
-      , Brittany.descriptor "brittany"
-#endif
-      , Eval.descriptor "eval"
-      , ExplicitImports.descriptor "importLens"
-      , ModuleName.descriptor "moduleName"
-      , Hlint.descriptor "hlint"
-      ]
-    examplePlugins =
-      [Example.descriptor  "eg"
-      ,Example2.descriptor "eg2"
-      ]
-
--- ---------------------------------------------------------------------
 
 main :: IO ()
 main = do

exe/Plugins.hs

@@ -0,0 +1,120 @@
+{-# LANGUAGE CPP               #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Plugins where
+
+import           Ide.Types                 (IdePlugins)
+import           Ide.Plugin                (pluginDescToIdePlugins)
+
+-- fixed plugins
+import           Ide.Plugin.Example        as Example
+import           Ide.Plugin.Example2       as Example2
+import           Ide.Plugin.GhcIde         as GhcIde
+
+-- haskell-language-server optional plugins
+
+#if eval
+import           Ide.Plugin.Eval           as Eval
+#endif
+
+#if importLens
+import           Ide.Plugin.ExplicitImports as ExplicitImports
+#endif
+
+#if retrie
+import           Ide.Plugin.Retrie         as Retrie
+#endif
+
+#if tactic
+import           Ide.Plugin.Tactic         as Tactic
+#endif
+
+#if hlint
+import           Ide.Plugin.Hlint          as Hlint
+#endif
+
+#if moduleName
+import           Ide.Plugin.ModuleName     as ModuleName
+#endif
+
+#if pragmas
+import           Ide.Plugin.Pragmas        as Pragmas
+#endif
+
+-- formatters
+
+#if floskell
+import           Ide.Plugin.Floskell       as Floskell
+#endif
+
+#if fourmolu
+import           Ide.Plugin.Fourmolu       as Fourmolu
+#endif
+
+#if ormolu
+import           Ide.Plugin.Ormolu         as Ormolu
+#endif
+
+#if stylishHaskell
+import           Ide.Plugin.StylishHaskell as StylishHaskell
+#endif
+
+#if AGPL && brittany
+import           Ide.Plugin.Brittany       as Brittany
+#endif
+
+-- ---------------------------------------------------------------------
+
+-- | 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 -> IdePlugins
+idePlugins includeExamples = pluginDescToIdePlugins allPlugins
+  where
+    allPlugins = if includeExamples
+                   then basePlugins ++ examplePlugins
+                   else basePlugins
+    basePlugins =
+      [ GhcIde.descriptor  "ghcide"
+#if pragmas
+      , Pragmas.descriptor  "pragmas"
+#endif
+#if floskell
+      , Floskell.descriptor "floskell"
+#endif
+#if fourmolu
+      , Fourmolu.descriptor "fourmolu"
+#endif
+#if tactic
+      , Tactic.descriptor "tactic"
+#endif
+#if ormolu
+      , Ormolu.descriptor   "ormolu"
+#endif
+#if stylishHaskell
+      , StylishHaskell.descriptor "stylish-haskell"
+#endif
+#if retrie
+      , Retrie.descriptor "retrie"
+#endif
+#if AGPL && brittany
+      , Brittany.descriptor "brittany"
+#endif
+#if eval
+      , Eval.descriptor "eval"
+#endif
+#if importLens
+      , ExplicitImports.descriptor "importLens"
+#endif
+#if moduleName
+      , ModuleName.descriptor "moduleName"
+#endif
+#if hlint
+      , Hlint.descriptor "hlint"
+#endif
+      ]
+    examplePlugins =
+      [Example.descriptor  "eg"
+      ,Example2.descriptor "eg2"
+      ]