Better module definitions.

hakyll.cabal

@@ -12,8 +12,10 @@ Cabal-Version:  >= 1.2
 build-type:     Simple
 
 library
+  ghc-options: -Wall
   hs-source-dirs: src/
-  build-depends:   base > 4, template, filepath, directory, containers, bytestring,
+  build-depends:   base >= 4 && < 5, template, filepath, directory, containers, bytestring,
                    pandoc >= 1
   exposed-modules: Text.Hakyll.Render
                    Text.Hakyll.Page
+                   Text.Hakyll.Util

src/Text/Hakyll/Page.hs

@@ -1,4 +1,12 @@
-module Text.Hakyll.Page where
+module Text.Hakyll.Page 
+    ( Page,
+      addContext,
+      getURL,
+      getBody,
+      readPage,
+      pageFromList,
+      concatPages
+    ) where
 
 import qualified Data.Map as M
 import qualified Data.List as L
@@ -18,7 +26,7 @@ getBody :: Page -> String
 getBody context = fromMaybe "" $ M.lookup "body" context
 
 readConfig :: [String] -> Page
-readConfig lines = M.fromList $ map (trim . break (== ':')) lines
+readConfig = M.fromList . map (trim . break (== ':'))
     where trim (key, value) = (key, dropWhile (`elem` ": ") value)
 
 extractContext :: String -> Page
@@ -45,3 +53,8 @@ readPage path = do
         url = addExtension (dropExtension path) ".html"
     return $ addContext "url" url $ addContext "body" body $ context
 
+pageFromList :: [(String, String)] -> Page
+pageFromList = M.fromList
+
+concatPages :: [Page] -> String
+concatPages = concat . map getBody

src/Text/Hakyll/Render.hs

@@ -1,4 +1,9 @@
-module Text.Hakyll.Render where
+module Text.Hakyll.Render 
+    ( renderPage,
+      renderAndWrite,
+      static,
+      staticDirectory
+    ) where
 
 import Text.Template
 import qualified Data.ByteString.Lazy.Char8 as B
@@ -20,8 +25,8 @@ createContext = M.fromList . map packPair . M.toList
 
 renderPage :: FilePath -> Page -> IO Page
 renderPage templatePath page = do
-    template <- B.readFile templatePath
-    let body = substitute template (createContext page)
+    templateString <- B.readFile templatePath
+    let body = substitute templateString (createContext page)
     return $ addContext "body" (B.unpack body) page
 
 renderAndWrite :: FilePath -> Page -> IO ()

src/Text/Hakyll/Util.hs

@@ -1,4 +1,7 @@
-module Text.Hakyll.Util where
+module Text.Hakyll.Util 
+    ( touchDirectories,
+      getRecursiveContents
+    ) where
 
 import System.Directory
 import System.FilePath