#include "HsVersions.h"
import DriverUtil
+import DriverPhases ( haskellish_user_src_file )
import Config
import Outputable
import Panic ( progName, GhcException(..) )
openFile, hPutChar, hPutStrLn, hPutStr, hClose, hFlush, IOMode(..),
stderr )
import Directory ( doesFileExist, removeFile )
-import List ( intersperse )
+import List ( intersperse, partition )
#include "../includes/config.h"
-- On Win32, consult GetTempPath() for a temp dir.
-- => it first tries TMP, TEMP, then finally the
-- Windows directory(!). The directory is in short-path
- -- form and *does* have a trailing backslash.
+ -- form.
; IO.try (do
let len = (2048::Int)
buf <- mallocArray len
ret <- getTempPath len buf
tdir <-
if ret == 0 then do
- -- failed, consult TEMP.
+ -- failed, consult TMPDIR.
free buf
- getEnv "TMP"
+ getEnv "TMPDIR"
else do
s <- peekCString buf
free buf
return s
- let
- -- strip the trailing backslash (awful, but
- -- we only do this once).
- tmpdir =
- case last tdir of
- '/' -> init tdir
- '\\' -> init tdir
- _ -> tdir
- setTmpDir tmpdir
- return ())
+ setTmpDir tdir)
#endif
-- Check that the package config exists
\end{code}
\begin{code}
-setTmpDir dir = writeIORef v_TmpDir dir
+setTmpDir dir = writeIORef v_TmpDir (canonicalise dir)
+ where
+#if !defined(mingw32_HOST_OS)
+ canonicalise p = normalisePath p
+#else
+ -- Canonicalisation of temp path under win32 is a bit more
+ -- involved: (a) strip trailing slash,
+ -- (b) normalise slashes
+ -- (c) just in case, if there is a prefix /cygdrive/x/, change to x:
+ --
+ canonicalise path = normalisePath (xltCygdrive (removeTrailingSlash path))
+
+ -- if we're operating under cygwin, and TMP/TEMP is of
+ -- the form "/cygdrive/drive/path", translate this to
+ -- "drive:/path" (as GHC isn't a cygwin app and doesn't
+ -- understand /cygdrive paths.)
+ xltCygdrive path
+ | "/cygdrive/" `isPrefixOf` path =
+ case drop (length "/cygdrive/") path of
+ drive:xs@('/':_) -> drive:':':xs
+ _ -> path
+ | otherwise = path
+
+ -- strip the trailing backslash (awful, but we only do this once).
+ removeTrailingSlash path =
+ case last path of
+ '/' -> init path
+ '\\' -> init path
+ _ -> path
+#endif
cleanTempFiles :: Int -> IO ()
cleanTempFiles verb = do fs <- readIORef v_FilesToClean
cleanTempFilesExcept :: Int -> [FilePath] -> IO ()
cleanTempFilesExcept verb dont_delete
- = do fs <- readIORef v_FilesToClean
- let leftovers = filter (`notElem` dont_delete) fs
- removeTmpFiles verb leftovers
- writeIORef v_FilesToClean dont_delete
+ = do files <- readIORef v_FilesToClean
+ let (to_keep, to_delete) = partition (`elem` dont_delete) files
+ removeTmpFiles verb to_delete
+ writeIORef v_FilesToClean to_keep
-- find a temporary name that doesn't already exist.
removeTmpFiles :: Int -> [FilePath] -> IO ()
removeTmpFiles verb fs
- = traceCmd "Deleting temp files"
- ("Deleting: " ++ unwords fs)
- (mapM_ rm fs)
+ = warnNon $
+ traceCmd "Deleting temp files"
+ ("Deleting: " ++ unwords deletees)
+ (mapM_ rm deletees)
where
+ -- Flat out refuse to delete files that are likely to be source input
+ -- files (is there a worse bug than having a compiler delete your source
+ -- files?)
+ --
+ -- Deleting source files is a sign of a bug elsewhere, so prominently flag
+ -- the condition.
+ warnNon act
+ | null non_deletees = act
+ | otherwise = do
+ hPutStrLn stderr ("WARNING - NOT deleting source files: " ++ unwords non_deletees)
+ act
+
+ (non_deletees, deletees) = partition haskellish_user_src_file fs
+
rm f = removeFile f `IO.catch`
(\_ignored ->
when (verb >= 2) $
0 -> return ExitSuccess
n -> return (ExitFailure n)
-foreign import ccall unsafe "rawSystem"
+foreign import ccall "rawSystem" unsafe
c_rawSystem :: CString -> Ptr CString -> IO Int
#else
escape '\\' str = '\\' : '\\' : str
escape c str = c : str
-foreign import ccall unsafe "rawSystem"
+foreign import ccall "rawSystem" unsafe
c_rawSystem :: CString -> IO Int
#endif
-----------------------------------------------------------------------------
-- Convert filepath into platform / MSDOS form.
--- platformPath does two things
--- a) change '/' to '\'
--- b) remove initial '/cygdrive/'
-
normalisePath :: String -> String
--- Just change '\' to '/'
+-- Just changes '\' to '/'
pgmPath :: String -- Directory string in Unix format
-> String -- Program name with no directory separators