Commit 69e55e74 authored by simonpj's avatar simonpj

[project @ 2002-09-13 15:01:40 by simonpj]

Make ghc-pkg independent of hslibs
parent 7e2009cf
{-# OPTIONS -fglasgow-exts #-}
-----------------------------------------------------------------------------
-- $Id: Main.hs,v 1.27 2002/09/09 11:32:37 simonmar Exp $
-- $Id: Main.hs,v 1.28 2002/09/13 15:01:40 simonpj Exp $
--
-- Package management tool
-----------------------------------------------------------------------------
......@@ -32,7 +34,8 @@ import ParsePkgConfLite
#include "../../includes/config.h"
#ifdef mingw32_HOST_OS
import Win32DLL
import CString
import Foreign
#endif
main = do
......@@ -90,15 +93,17 @@ unDosifyPath xs = subst '\\' '/' xs
#endif
runit clis = do
let err_msg = "missing -f option, location of package.conf unknown"
conf_file <-
case [ f | Config f <- clis ] of
fs@(_:_) -> return (last fs)
#ifndef mingw32_HOST_OS
[] -> die "missing -f option, location of package.conf unknown"
[] -> die err_msg
#else
[] -> do h <- getModuleHandle Nothing
n <- getModuleFileName h
return (reverse (drop (length "/bin/ghc-pkg.exe") (reverse (unDosifyPath n))) ++ "/package.conf")
[] -> do mb_dir <- getExecDir "/bin/ghc-pkg.exe"
case mb_dir of
Nothing -> die err_msg
Just dir -> return (dir ++ "/package.conf")
#endif
let toField "import_dirs" = return import_dirs
......@@ -150,7 +155,7 @@ showPackage packages pkgconf pkg_name fields =
[] -> die ("can't find package `" ++ pkg_name ++ "'")
[pkg] | null fields -> hPutStrLn stdout (render (dumpPkgGuts pkg))
| otherwise -> hPutStrLn stdout (render (vcat
(map (vcat . map text) (map ($pkg) fields))))
(map (vcat . map text) (map ($ pkg) fields))))
_ -> die "showPackage: internal error"
addPackage :: [PackageConfig] -> FilePath -> FilePath
......@@ -399,3 +404,29 @@ my_catch = Exception.catchAllIO
#endif
#endif
-----------------------------------------
-- Cut and pasted from ghc/compiler/SysTools
#if defined(mingw32_HOST_OS)
getExecDir :: String -> IO (Maybe String)
-- (getExecDir cmd) returns the directory in which the current
-- executable, which should be called 'cmd', is running
-- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd,
-- you'll get "/a/b/c" back as the result
getExecDir cmd
= allocaArray len $ \buf -> do
ret <- getModuleFileName nullPtr buf len
if ret == 0 then return Nothing
else do s <- peekCString buf
return (Just (reverse (drop (length cmd)
(reverse (unDosifyPath s)))))
where
len = 2048::Int -- Plenty, PATH_MAX is 512 under Win32.
foreign import stdcall "GetModuleFileNameA" unsafe
getModuleFileName :: Ptr () -> CString -> Int -> IO Int32
#else
getExecDir :: String -> IO (Maybe String)
getExecDir s = do return Nothing
#endif
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