Scaffolding: define extensions in cabal file

yesod/scaffold/Application.hs.cg

@@ -1,13 +1,10 @@
-{-# LANGUAGE TemplateHaskell #-}
-{-# LANGUAGE MultiParamTypeClasses #-}
-{-# LANGUAGE CPP #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 module Application
     ( with~sitearg~
     , withDevelAppPort
     ) where
 
-import Foundation
+import Import
 import Settings
 import Yesod.Static
 import Yesod.Auth

yesod/scaffold/Foundation.hs.cg

@@ -1,6 +1,3 @@
-{-# LANGUAGE QuasiQuotes, TemplateHaskell, TypeFamilies #-}
-{-# LANGUAGE OverloadedStrings, MultiParamTypeClasses #-}
-{-# LANGUAGE CPP #-}
 module Foundation
     ( ~sitearg~ (..)
     , ~sitearg~Route (..)
@@ -17,6 +14,7 @@ module Foundation
     , AuthRoute (..)
     ) where
 
+import Prelude
 import Yesod
 import Yesod.Static (Static, base64md5, StaticRoute(..))
 import Settings.StaticFiles

yesod/scaffold/Handler/Root.hs.cg

@@ -1,4 +1,3 @@
-{-# LANGUAGE TemplateHaskell, QuasiQuotes, OverloadedStrings, NoImplicitPrelude #-}
 module Handler.Root where
 
 import Import

yesod/scaffold/Model.hs.cg

@@ -1,6 +1,6 @@
-{-# LANGUAGE QuasiQuotes, TypeFamilies, GeneralizedNewtypeDeriving, TemplateHaskell, GADTs #-}
 module Model where
 
+import Prelude
 import Yesod
 import Data.Text (Text)
 ~modelImports~

yesod/scaffold/Settings.hs.cg

@@ -1,6 +1,3 @@
-{-# LANGUAGE CPP #-}
-{-# LANGUAGE TemplateHaskell, QuasiQuotes #-}
-{-# LANGUAGE OverloadedStrings #-}
 -- | Settings are centralized, as much as possible, into this file. This
 -- includes database connection settings, static file locations, etc.
 -- In addition, you can configure a number of different aspects of Yesod
@@ -13,6 +10,7 @@ module Settings
     , staticDir
     ) where
 
+import Prelude (FilePath, String)
 import Text.Shakespeare.Text (st)
 import Language.Haskell.TH.Syntax
 import Database.Persist.~importPersist~ (~configPersist~)

yesod/scaffold/Settings/StaticFiles.hs.cg

@@ -1,4 +1,3 @@
-{-# LANGUAGE CPP, QuasiQuotes, TemplateHaskell, TypeFamilies #-}
 module Settings.StaticFiles where
 
 import Yesod.Static (staticFiles, StaticRoute (StaticRoute))

yesod/scaffold/main.hs.cg

@@ -1,6 +1,7 @@
 import Yesod.Default.Config (fromArgs)
 import Yesod.Default.Main   (defaultMain)
 import Application          (with~sitearg~)
+import Prelude              (IO)
 
 main :: IO ()
 main = defaultMain fromArgs with~sitearg~

yesod/scaffold/project.cabal.cg

@@ -36,6 +36,17 @@ library
 
     ghc-options:   -Wall -threaded -O0
 
+    extensions: TemplateHaskell
+                QuasiQuotes
+                OverloadedStrings
+                NoImplicitPrelude
+                CPP
+                OverloadedStrings
+                MultiParamTypeClasses
+                TypeFamilies
+                GADTs
+                GeneralizedNewtypeDeriving
+
 executable         ~project~
     if flag(devel)
         Buildable: False
@@ -48,6 +59,17 @@ executable         ~project~
 
     main-is:       main.hs
 
+    extensions: TemplateHaskell
+                QuasiQuotes
+                OverloadedStrings
+                NoImplicitPrelude
+                CPP
+                OverloadedStrings
+                MultiParamTypeClasses
+                TypeFamilies
+                GADTs
+                GeneralizedNewtypeDeriving
+
     build-depends: base                          >= 4          && < 5
                  , yesod                         >= 0.9        && < 0.10
                  , yesod-core                    >= 0.9.3      && < 0.10

yesod/scaffold/tiny/Application.hs.cg

@@ -1,13 +1,10 @@
-{-# LANGUAGE TemplateHaskell #-}
-{-# LANGUAGE MultiParamTypeClasses #-}
-{-# LANGUAGE CPP #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 module Application
     ( with~sitearg~
     , withDevelAppPort
     ) where
 
-import Foundation
+import Import
 import Settings
 import Yesod.Static
 import Yesod.Default.Config

yesod/scaffold/tiny/Foundation.hs.cg

@@ -1,5 +1,3 @@
-{-# LANGUAGE QuasiQuotes, TemplateHaskell, TypeFamilies #-}
-{-# LANGUAGE OverloadedStrings, MultiParamTypeClasses #-}
 module Foundation
     ( ~sitearg~ (..)
     , ~sitearg~Route (..)
@@ -14,6 +12,7 @@ module Foundation
     , liftIO
     ) where
 
+import Prelude
 import Yesod.Core
 import Yesod.Default.Config
 import Yesod.Default.Util (addStaticContentExternal)

yesod/scaffold/tiny/Settings.hs.cg

@@ -1,6 +1,3 @@
-{-# LANGUAGE CPP #-}
-{-# LANGUAGE TemplateHaskell, QuasiQuotes  #-}
-{-# LANGUAGE OverloadedStrings #-}
 -- | Settings are centralized, as much as possible, into this file. This
 -- includes database connection settings, static file locations, etc.
 -- In addition, you can configure a number of different aspects of Yesod
@@ -12,6 +9,7 @@ module Settings
     , staticDir
     ) where
 
+import Prelude (FilePath, String)
 import Text.Shakespeare.Text (st)
 import Language.Haskell.TH.Syntax
 import Yesod.Default.Config

yesod/scaffold/tiny/project.cabal.cg

@@ -34,6 +34,15 @@ library
 
     ghc-options:   -Wall -threaded -O0
 
+    extensions: TemplateHaskell
+                QuasiQuotes
+                OverloadedStrings
+                NoImplicitPrelude
+                CPP
+                OverloadedStrings
+                MultiParamTypeClasses
+                TypeFamilies
+
 executable         ~project~
     if flag(devel)
         Buildable: False
@@ -46,6 +55,15 @@ executable         ~project~
 
     main-is:       main.hs
 
+    extensions: TemplateHaskell
+                QuasiQuotes
+                OverloadedStrings
+                NoImplicitPrelude
+                CPP
+                OverloadedStrings
+                MultiParamTypeClasses
+                TypeFamilies
+
     build-depends: base                          >= 4          && < 5
                  , yesod-core                    >= 0.9.3      && < 0.10
                  , yesod-static                  >= 0.3.1      && < 0.4