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{-# LANGUAGE OverloadedStrings #-}
-- GHC trac #2969
import System.Posix.ByteString
import Control.Exception as E
import Control.Monad
main = do
cleanup
fs <- testRegular
ds <- testDir
testSymlink fs ds
cleanup
regular = "regular2"
dir = "dir2"
link_regular = "link-regular2"
link_dir = "link-dir2"
testRegular = do
createFile regular ownerReadMode
(fs, _) <- getStatus regular
let expected = (False,False,False,True,False,False,False)
actual = snd (statusElements fs)
when (actual /= expected) $
fail "unexpected file status bits for regular file"
return fs
testDir = do
createDirectory dir ownerReadMode
(ds, _) <- getStatus dir
let expected = (False,False,False,False,True,False,False)
actual = snd (statusElements ds)
when (actual /= expected) $
fail "unexpected file status bits for directory"
return ds
testSymlink fs ds = do
createSymbolicLink regular link_regular
createSymbolicLink dir link_dir
(fs', ls) <- getStatus link_regular
(ds', lds) <- getStatus link_dir
let expected = (False,False,False,False,False,True,False)
actualF = snd (statusElements ls)
actualD = snd (statusElements lds)
when (actualF /= expected) $
fail "unexpected file status bits for symlink to regular file"
when (actualD /= expected) $
fail "unexpected file status bits for symlink to directory"
when (statusElements fs /= statusElements fs') $
fail "status for a file does not match when it's accessed via a symlink"
when (statusElements ds /= statusElements ds') $
fail "status for a directory does not match when it's accessed via a symlink"
cleanup = do
ignoreIOExceptions $ removeDirectory dir
mapM_ (ignoreIOExceptions . removeLink)
[regular, link_regular, link_dir]
ignoreIOExceptions io = io `E.catch`
((\_ -> return ()) :: IOException -> IO ())
getStatus f = do
fs <- getFileStatus f
ls <- getSymbolicLinkStatus f
fd <- openFd f ReadOnly Nothing defaultFileFlags
fs' <- getFdStatus fd
when (statusElements fs /= statusElements fs') $
fail "getFileStatus and getFdStatus give inconsistent results"
when (not (isSymbolicLink ls) && statusElements fs /= statusElements fs') $
fail $ "getFileStatus and getSymbolicLinkStatus give inconsistent results "
++ "on a file that is not a symbolic link"
return (fs, ls)
-- Yay for 20-element tuples!
statusElements fs = (,)
(deviceID fs
,fileMode fs
,linkCount fs
,fileOwner fs
,fileGroup fs
,specialDeviceID fs
,fileSize fs
,accessTime fs
,accessTimeHiRes fs
,modificationTime fs
,modificationTimeHiRes fs
,statusChangeTime fs
,statusChangeTimeHiRes fs
)
(isBlockDevice fs
,isCharacterDevice fs
,isNamedPipe fs
,isRegularFile fs
,isDirectory fs
,isSymbolicLink fs
,isSocket fs
)
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