Properly render package ID (not package key) in index, fixes #329.

Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>

2 files changed, 16 insertions, 11 deletions

diff --git a/src/Haddock/Backends/Xhtml.hs b/src/Haddock/Backends/Xhtml.hs
index 192c708a..b6a1190d 100644
--- a/src/Haddock/Backends/Xhtml.hs
+++ b/src/Haddock/Backends/Xhtml.hs
@@ -60,7 +60,8 @@ import Module
 --------------------------------------------------------------------------------
 
 
-ppHtml :: String
+ppHtml :: DynFlags
+       -> String                       -- ^ Title
        -> Maybe String                 -- ^ Package
        -> [Interface]
        -> FilePath                     -- ^ Destination directory
@@ -75,7 +76,7 @@ ppHtml :: String
        -> Bool                         -- ^ Output pretty html (newlines and indenting)
        -> IO ()
 
-ppHtml doctitle maybe_package ifaces odir prologue
+ppHtml dflags doctitle maybe_package ifaces odir prologue
         themes maybe_source_url maybe_wiki_url
         maybe_contents_url maybe_index_url unicode
         qual debug =  do
@@ -84,7 +85,7 @@ ppHtml doctitle maybe_package ifaces odir prologue
     visible i = OptHide `notElem` ifaceOptions i
 
   when (isNothing maybe_contents_url) $
-    ppHtmlContents odir doctitle maybe_package
+    ppHtmlContents dflags odir doctitle maybe_package
         themes maybe_index_url maybe_source_url maybe_wiki_url
         (map toInstalledIface visible_ifaces)
         False -- we don't want to display the packages in a single-package contents
@@ -239,7 +240,8 @@ moduleInfo iface =
 
 
 ppHtmlContents
-   :: FilePath
+   :: DynFlags
+   -> FilePath
    -> String
    -> Maybe String
    -> Themes
@@ -250,10 +252,10 @@ ppHtmlContents
    -> Bool
    -> Qualification  -- ^ How to qualify names
    -> IO ()
-ppHtmlContents odir doctitle _maybe_package
+ppHtmlContents dflags odir doctitle _maybe_package
   themes maybe_index_url
   maybe_source_url maybe_wiki_url ifaces showPkgs prologue debug qual = do
-  let tree = mkModuleTree showPkgs
+  let tree = mkModuleTree dflags showPkgs
          [(instMod iface, toInstalledDescription iface) | iface <- ifaces]
       html =
         headHtml doctitle Nothing themes +++
diff --git a/src/Haddock/ModuleTree.hs b/src/Haddock/ModuleTree.hs
index 28c5c06d..cb926685 100644
--- a/src/Haddock/ModuleTree.hs
+++ b/src/Haddock/ModuleTree.hs
@@ -15,18 +15,21 @@ module Haddock.ModuleTree ( ModuleTree(..), mkModuleTree ) where
 import Haddock.Types ( Doc )
 
 import GHC           ( Name )
-import Module        ( Module, moduleNameString, moduleName, modulePackageKey,
-                       packageKeyString )
+import Module        ( Module, moduleNameString, moduleName, modulePackageKey )
+import DynFlags      ( DynFlags )
+import Packages      ( lookupPackage )
+import PackageConfig ( sourcePackageIdString )
 
 
 data ModuleTree = Node String Bool (Maybe String) (Maybe (Doc Name)) [ModuleTree]
 
 
-mkModuleTree :: Bool -> [(Module, Maybe (Doc Name))] -> [ModuleTree]
-mkModuleTree showPkgs mods =
+mkModuleTree :: DynFlags -> Bool -> [(Module, Maybe (Doc Name))] -> [ModuleTree]
+mkModuleTree dflags showPkgs mods =
   foldr fn [] [ (splitModule mdl, modPkg mdl, short) | (mdl, short) <- mods ]
   where
-    modPkg mod_ | showPkgs = Just (packageKeyString (modulePackageKey mod_))
+    modPkg mod_ | showPkgs = fmap sourcePackageIdString
+                                  (lookupPackage dflags (modulePackageKey mod_))
                 | otherwise = Nothing
     fn (mod_,pkg,short) = addToTrees mod_ pkg short