use staticDevel in scaffold

yesod-static/Yesod/Static.hs

@@ -25,6 +25,7 @@ module Yesod.Static
     , StaticRoute (..)
       -- * Smart constructor
     , static
+    , staticDevel
     , embed
       -- * Template Haskell helpers
     , staticFiles

yesod/scaffold/Application.hs.cg

@@ -61,7 +61,11 @@ with~sitearg~ conf logger f = do
     takeMVar flag
 #endif
   where
+#ifdef PRODUCTION
     s = static Settings.staticDir
+#else
+    s = staticDevel Settings.staticDir
+#endif
 
 -- for yesod devel
 withDevelAppPort :: Dynamic

yesod/scaffold/tiny/Application.hs.cg

@@ -40,7 +40,11 @@ with~sitearg~ conf logger f = do
     let h = ~sitearg~ conf logger s
     toWaiApp h >>= f
   where
+#ifdef PRODUCTION
     s = static Settings.staticDir
+#else
+    s = staticDevel Settings.staticDir
+#endif
 
 with~sitearg~LoadConfig :: Settings.AppEnvironment -> (Application -> IO a) -> IO a
 with~sitearg~LoadConfig env f = do