#8482: Permission denied when copying file to current directory with copyFile -------------------------------------+------------------------------------- Reporter: Henk-Jan | Owner: ekmett Type: bug | Status: new Priority: normal | Milestone: Component: Core | Version: 7.6.3 Libraries | Keywords: copyFile Resolution: | permission denied Operating System: Windows | Architecture: x86 Type of failure: Incorrect | Difficulty: Unknown result at runtime | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by gintas): * cc: core-libraries-committee@… (added) Comment: This seems to be a special case of the issue when the destination path is a directory without the filename, not a full path (consider "mv foo.txt a/foo.txt" vs "mv foo.txt a/"). I suspect the difference in behavior is due to Win32.moveFileEx behaving differently from Posix.rename in this situation, see http://hackage.haskell.org/package/directory-1.2.1.0/docs/src/System- Directory.html#renameFile The documentation says that the second operand must not be a directory, but the code does not check for that. Looks like a bug then. There's likely code relying on the buggy behavior, the fix could be a bit risky... -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8482#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler