diff options
Diffstat (limited to 'Utility/LogFile.hs')
| -rw-r--r-- | Utility/LogFile.hs | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/Utility/LogFile.hs b/Utility/LogFile.hs index 1985b7eda..1ff3006fe 100644 --- a/Utility/LogFile.hs +++ b/Utility/LogFile.hs @@ -13,22 +13,24 @@ import System.Posix openLog :: FilePath -> IO Fd openLog logfile = do - rotateLog logfile 0 + rotateLog logfile openFd logfile WriteOnly (Just stdFileMode) defaultFileFlags { append = True } -rotateLog :: FilePath -> Int -> IO () -rotateLog logfile num - | num > maxLogs = return () - | otherwise = whenM (doesFileExist currfile) $ do - rotateLog logfile (num + 1) - renameFile currfile nextfile +rotateLog :: FilePath -> IO () +rotateLog logfile = go 0 where - currfile = filename num - nextfile = filename (num + 1) - filename n - | n == 0 = logfile - | otherwise = rotatedLog logfile n + go num + | num > maxLogs = return () + | otherwise = whenM (doesFileExist currfile) $ do + go (num + 1) + renameFile currfile nextfile + where + currfile = filename num + nextfile = filename (num + 1) + filename n + | n == 0 = logfile + | otherwise = rotatedLog logfile n rotatedLog :: FilePath -> Int -> FilePath rotatedLog logfile n = logfile ++ "." ++ show n @@ -40,3 +42,13 @@ listLogs logfile = filterM doesFileExist $ reverse $ maxLogs :: Int maxLogs = 9 + +redirLog :: Fd -> IO () +redirLog logfd = do + mapM_ (redir logfd) [stdOutput, stdError] + closeFd logfd + +redir :: Fd -> Fd -> IO () +redir newh h = do + closeFd h + void $ dupTo newh h |