The extension wasn't really part of the filename in those days. So aux.c and aux.hs is interpreted as aux. The funny thing is that Microsoft soon recognized how bad it was and added a flag to make it unix-like (\dev\nul etc) and free the names in dos 2.0, but the default stayed as it was.

Niklas
Från: Frerich Raabe
Skickat: ‎2014-‎06-‎16 13:15
Till: haskell-cafe@haskell.org
Ämne: Re: [Haskell-cafe] Uploading to hackage fails: bad file names intarball

Hi,

There are a couple more special files, most (all?) of which are documented
at

  
http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#naming_conventions

That page also says "Also avoid these names followed immediately by an
extension; for example, NUL.txt is not recommended." and I suspect that it
may be this recommendation based on which the error is raised. "NUL.txt" as
well as "Aux.hs" are valid file names though.

There is no file named 'AUX' though, and "Aux.hs" is a valid filename.

On 2014-06-16 11:45, Niklas Larsson wrote:
> Hi!
>
> For extremely ancient and cludgy reasons AUX isn't a valid filename on
> windows, it's a DOS device. The other similarly reserved name are CON,
> PRN and NUL.
>
> Niklas
>
> ----- Ursprungligt meddelande -----
> Från: "Arie Peterson" <ariep@xs4all.nl>
> Skickat: ‎2014-‎06-‎16 10:45
> Till: "haskell-cafe@haskell.org" <haskell-cafe@haskell.org>
> Ämne: [Haskell-cafe] Uploading to hackage fails: bad file names in tarball
>
> Since some time, I have been unable to upload packages to Hackage, via
> either
> the 'cabal upload' command, or using the web form.
>
> The error message it gives is this:
>
> ==== ✂ ====
> Hackage username: AriePeterson
> Hackage password:
> Uploading dist/np-linear-0.1.1.1.tar.gz...
> Error: dist/np-linear-0.1.1.1.tar.gz: 400 Bad Request
> Error: Invalid package
>
> Invalid windows file name in tar archive:
> "np-linear-0.1.1.1\\src\\Aux.hs".
> For portability, hackage requires that file names be valid on both Unix
> and
> Windows systems, and not refer outside of the tarball.
> ==== ✂ ====
>
> The tarball is created by 'cabal sdist':
> cabal-install version 1.18.0.2
> using version 1.18.1.1 of the Cabal library.
>
> I also installed the newest cabal-install, on another machine, but this
> did
> not help (same error).
>
> I also tried to create a tarball by hand, using 'tar --format=ustar', but
> this
> again resulted in the same error message.
>
> By the way, I'm on linux, not Windows, so it is not clear how the
> backslashes
> get in the file names.
>
>
> What could be going on?
>
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--
Frerich Raabe - raabe@froglogic.com
www.froglogic.com - Multi-Platform GUI Testing
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