-----------------------------------------------------------------------------
--- $Id: DriverMkDepend.hs,v 1.25 2002/10/17 14:26:18 simonmar Exp $
+-- $Id: DriverMkDepend.hs,v 1.33 2004/09/30 10:37:10 simonpj Exp $
--
-- GHC Driver
--
--
-----------------------------------------------------------------------------
-module DriverMkDepend where
+module DriverMkDepend (
+ doMkDependHSPhase, beginMkDependHS, endMkDependHS
+ ) where
#include "HsVersions.h"
+import GetImports ( getImports )
import DriverState
-import DriverUtil ( add, softGetDirectoryContents, replaceFilenameSuffix )
+import DriverUtil
import DriverFlags
import SysTools ( newTempName )
import qualified SysTools
import Module ( ModuleName, ModLocation(..),
moduleNameUserString, isHomeModule )
-import Finder ( findModule, hiBootExt, hiBootVerExt )
-import Util ( global )
+import Finder ( findModule, hiBootExt, hiBootVerExt,
+ mkHomeModLocation )
+import Util ( global, maybePrefixMatch )
import Panic
import DATA_IOREF ( IORef, readIORef, writeIORef )
return ()
+doMkDependHSPhase basename suff input_fn
+ = do src <- readFile input_fn
+ let (import_sources, import_normals, mod_name) = getImports src
+ let orig_fn = basename ++ '.':suff
+ (_, location') <- mkHomeModLocation mod_name orig_fn
+
+ -- take -ohi into account if present
+ ohi <- readIORef v_Output_hi
+ let location | Just fn <- ohi = location'{ ml_hi_file = fn }
+ | otherwise = location'
+
+ deps_sources <- mapM (findDependency True orig_fn) import_sources
+ deps_normals <- mapM (findDependency False orig_fn) import_normals
+ let deps = deps_sources ++ deps_normals
+
+ osuf <- readIORef v_Object_suf
+ extra_suffixes <- readIORef v_Dep_suffixes
+ let suffixes = map (++ ('_':osuf)) extra_suffixes
+ obj_file = ml_obj_file location
+ objs = obj_file : map (replaceFilenameSuffix obj_file) suffixes
+
+ -- Handle for file that accumulates dependencies
+ hdl <- readIORef v_Dep_tmp_hdl
+
+ -- std dependency of the object(s) on the source file
+ hPutStrLn hdl (unwords (map escapeSpaces objs) ++ " : " ++
+ escapeSpaces (basename ++ '.':suff))
+
+ let genDep (dep, False {- not an hi file -}) =
+ hPutStrLn hdl (unwords (map escapeSpaces objs) ++ " : " ++
+ escapeSpaces dep)
+ genDep (dep, True {- is an hi file -}) = do
+ hisuf <- readIORef v_Hi_suf
+ let
+ -- In order to construct hi files with alternate suffixes, we
+ -- now have to find the "basename" of the hi file. This is
+ -- difficult because we can't just split the hi filename
+ -- at the last dot - the hisuf might have dots in it. So we
+ -- check whether the hi filename ends in hisuf, and if it does,
+ -- we strip off hisuf, otherwise we strip everything after the
+ -- last dot.
+ dep_base
+ | Just rest <- maybePrefixMatch rev_hisuf rev_dep
+ = reverse rest
+ | otherwise
+ = remove_suffix '.' dep
+ where
+ rev_hisuf = reverse hisuf
+ rev_dep = reverse dep
+
+ deps = dep : map (\suf -> dep_base ++ suf ++ '_':hisuf)
+ extra_suffixes
+ -- length objs should be == length deps
+ sequence_ (zipWith (\o d -> hPutStrLn hdl (escapeSpaces o ++ " : " ++ escapeSpaces d)) objs deps)
+
+ sequence_ (map genDep [ d | Just d <- deps ])
+ return location
+
+-- add the lines to dep_makefile:
+ -- always:
+ -- this.o : this.hs
+
+ -- if the dependency is on something other than a .hi file:
+ -- this.o this.p_o ... : dep
+ -- otherwise
+ -- if the import is {-# SOURCE #-}
+ -- this.o this.p_o ... : dep.hi-boot[-$vers]
+
+ -- else
+ -- this.o ... : dep.hi
+ -- this.p_o ... : dep.p_hi
+ -- ...
+
+ -- (where .o is $osuf, and the other suffixes come from
+ -- the cmdline -s options).
+
+
+
endMkDependHS :: IO ()
endMkDependHS = do
makefile <- readIORef v_Dep_makefile
else do
r <- findModule imp
case r of
- Just (mod,loc)
+ Right (mod,loc)
-- not in this package: we don't need a dependency
| not (isHomeModule mod) && not include_prelude
-> return Nothing
boot_hi_file = replaceFilenameSuffix hi_file hiBootExt
boot_ver_hi_file = replaceFilenameSuffix hi_file hiBootVerExt
in do
- b <- doesFileExist boot_hi_file
+ b <- doesFileExist boot_ver_hi_file
if b
- then return (Just (boot_hi_file, not is_source))
+ then return (Just (boot_ver_hi_file, not is_source))
else do
- b <- doesFileExist boot_ver_hi_file
+ b <- doesFileExist boot_hi_file
if b
- then return (Just (boot_ver_hi_file, not is_source))
+ then return (Just (boot_hi_file, not is_source))
else return (Just (hi_file, not is_source))
- Nothing -> throwDyn (ProgramError
+ Left _ -> throwDyn (ProgramError
(src ++ ": " ++ "can't locate import `" ++ imp_mod ++ "'" ++
if is_source then " (SOURCE import)" else ""))