writeFile package:Cabal-syntax

writeFile :: FilePath -> String -> IO ()
Cabal-syntax Distribution.Compat.Prelude
The computation writeFile file str function writes the string str, to the file file.
writeFileAtomic :: FilePath -> ByteString -> IO ()
Cabal-syntax Distribution.Utils.Generic
Writes a file atomically. The file is either written successfully or an IO exception is raised and the original file is left unchanged. On Unix:
  • If the temp directory ($TMPDIR) is in a filesystem different than the destination path, the renaming will be emulated via copyFile then deleteFile.
On Windows:
  • This operation is not guaranteed to be atomic, see renameFile.
  • It is not possible to delete a file that is open by a process. This case will give an IO exception but the atomic property is not affected.
  • If the temp directory (TMPTEMP..., see haddocks on getTemporaryDirectory) is in a different drive than the destination path, the write will be emulated via copyFile, then deleteFile.