- -- create a backup of the original makefile
- when (isJust makefile_hdl) $
- run_something ("Backing up " ++ makefile)
- (unwords [ "cp", makefile, makefile++".bak" ])
-
- -- copy the new makefile in place
- run_something "Installing new makefile"
- (unwords [ "cp", tmp_file, makefile ])
-
-
-findDependency :: String -> ModImport -> IO (Maybe (String, Bool))
-findDependency mod imp = do
- dir_contents <- readIORef dep_dir_contents
- ignore_dirs <- readIORef dep_ignore_dirs
- hisuf <- readIORef hi_suf
-
- let
- (imp_mod, is_source) =
- case imp of
- MINormal str -> (moduleNameString str, False)
- MISource str -> (moduleNameString str, True )
-
- imp_hi = imp_mod ++ '.':hisuf
- imp_hiboot = imp_mod ++ ".hi-boot"
- imp_hiboot_v = imp_mod ++ ".hi-boot-" ++ cHscIfaceFileVersion
- imp_hs = imp_mod ++ ".hs"
- imp_lhs = imp_mod ++ ".lhs"
-
- deps | is_source = [ imp_hiboot_v, imp_hiboot, imp_hs, imp_lhs ]
- | otherwise = [ imp_hi, imp_hs, imp_lhs ]
-
- search [] = throwDyn (OtherError ("can't find one of the following: " ++
- unwords (map (\d -> '`': d ++ "'") deps) ++
- " (imported from `" ++ mod ++ "')"))
- search ((dir, contents) : dirs)
- | null present = search dirs
- | otherwise =
- if dir `elem` ignore_dirs
- then return Nothing
- else if is_source
- then if dep /= imp_hiboot_v
- then return (Just (dir++'/':imp_hiboot, False))
- else return (Just (dir++'/':dep, False))
- else return (Just (dir++'/':imp_hi, not is_source))
- where
- present = filter (`elem` contents) deps
- dep = head present
-
- -- in
- search dir_contents
-
+ -- Create a backup of the original makefile
+ when (isJust makefile_hdl)
+ (SysTools.copy ("Backing up " ++ makefile) makefile (makefile++".bak"))
+
+ -- Copy the new makefile in place
+ SysTools.copy "Installing new makefile" tmp_file makefile
+
+
+findDependency :: Bool -> FilePath -> ModuleName -> IO (Maybe (String, Bool))
+findDependency is_source src imp = do
+ excl_mods <- readIORef v_Dep_exclude_mods
+ include_prelude <- readIORef v_Dep_include_prelude
+ let imp_mod = moduleNameUserString imp
+ if imp_mod `elem` excl_mods
+ then return Nothing
+ else do
+ r <- findModule imp
+ case r of
+ Right (mod,loc)
+ -- not in this package: we don't need a dependency
+ | not (isHomeModule mod) && not include_prelude
+ -> return Nothing
+
+ -- normal import: just depend on the .hi file
+ | not is_source
+ -> return (Just (ml_hi_file loc, not is_source))
+
+ -- if it's a source import, we want to generate a dependency
+ -- on the .hi-boot file, not the .hi file
+ | otherwise
+ -> let hi_file = ml_hi_file loc
+ boot_hi_file = replaceFilenameSuffix hi_file hiBootExt
+ boot_ver_hi_file = replaceFilenameSuffix hi_file hiBootVerExt
+ in do
+ b <- doesFileExist boot_ver_hi_file
+ if b
+ then return (Just (boot_ver_hi_file, not is_source))
+ else do
+ b <- doesFileExist boot_hi_file
+ if b
+ then return (Just (boot_hi_file, not is_source))
+ else return (Just (hi_file, not is_source))
+
+ Left _ -> throwDyn (ProgramError
+ (src ++ ": " ++ "can't locate import `" ++ imp_mod ++ "'" ++
+ if is_source then " (SOURCE import)" else ""))