Revert "compiler: Refactor: extract `withAtomicRename`"

This reverts commit e8a08f400744a860d1366c6680c8419d30f7cc2a.

1 files changed, 1 insertions, 23 deletions

diff --git a/compiler/utils/Util.hs b/compiler/utils/Util.hs
index 41f63f2246..16864fe017 100644
--- a/compiler/utils/Util.hs
+++ b/compiler/utils/Util.hs
@@ -99,7 +99,6 @@ module Util (
         doesDirNameExist,
         getModificationUTCTime,
         modificationTimeIfExists,
-        withAtomicRename,
 
         global, consIORef, globalM,
         sharedGlobal, sharedGlobalM,
@@ -146,10 +145,9 @@ import GHC.Stack (HasCallStack)
 
 import Control.Applicative ( liftA2 )
 import Control.Monad    ( liftM, guard )
-import Control.Monad.IO.Class ( MonadIO, liftIO )
 import GHC.Conc.Sync ( sharedCAF )
 import System.IO.Error as IO ( isDoesNotExistError )
-import System.Directory ( doesDirectoryExist, getModificationTime, renameFile )
+import System.Directory ( doesDirectoryExist, getModificationTime )
 import System.FilePath
 
 import Data.Char        ( isUpper, isAlphaNum, isSpace, chr, ord, isDigit, toUpper
@@ -1306,26 +1304,6 @@ modificationTimeIfExists f = do
                         else ioError e
 
 -- --------------------------------------------------------------
--- atomic file writing by writing to a temporary file first (see #14533)
---
--- This should be used in all cases where GHC writes files to disk
--- and uses their modification time to skip work later,
--- as otherwise a partially written file (e.g. due to crash or Ctrl+C)
--- also results in a skip.
-
-withAtomicRename :: (MonadIO m) => FilePath -> (FilePath -> m a) -> m a
-withAtomicRename targetFile f = do
-  -- The temp file must be on the same file system (mount) as the target file
-  -- to result in an atomic move on most platforms.
-  -- The standard way to ensure that is to place it into the same directory.
-  -- This can still be fooled when somebody mounts a different file system
-  -- at just the right time, but that is not a case we aim to cover here.
-  let temp = targetFile <.> "tmp"
-  res <- f temp
-  liftIO $ renameFile temp targetFile
-  return res
-
--- --------------------------------------------------------------
 -- split a string at the last character where 'pred' is True,
 -- returning a pair of strings. The first component holds the string
 -- up (but not including) the last character for which 'pred' returned