Change Hoogle to take the package name and package version separately

1 files changed, 12 insertions, 8 deletions

diff --git a/src/Haddock/Backends/Hoogle.hs b/src/Haddock/Backends/Hoogle.hs
index 4c9c7c66..94109d82 100644
--- a/src/Haddock/Backends/Hoogle.hs
+++ b/src/Haddock/Backends/Hoogle.hs
@@ -25,14 +25,18 @@ import Data.Maybe
 import System.FilePath
 
 
-prefix = ["-- Hoogle documentation, generated by Haddock",
-          "-- See Hoogle, http://www.haskell.org/hoogle/"]
-
-
-ppHoogle :: Maybe String -> [Interface] -> FilePath -> IO ()
-ppHoogle maybe_package ifaces odir = do
-    let filename = (fromMaybe "main" maybe_package) <.> "txt"
-        contents = prefix ++ concat [ppModule i | i <- ifaces, OptHide `notElem` ifaceOptions i]
+prefix = ["-- Hoogle documentation, generated by Haddock"
+         ,"-- See Hoogle, http://www.haskell.org/hoogle/"
+         ,""]
+
+
+ppHoogle :: String -> String -> [Interface] -> FilePath -> IO ()
+ppHoogle package version ifaces odir = do
+    let filename = package <.> "txt"
+        contents = prefix ++
+                   ["@package " ++ package] ++
+                   ["@version " ++ version | version /= ""] ++
+                   concat [ppModule i | i <- ifaces, OptHide `notElem` ifaceOptions i]
     writeFile (odir </> filename) (unlines contents)