From: Trans <transfire@...>
Date: 2007-06-13T07:41:01+09:00
Subject: Re: FileUtils.ln cross platform?



On Jun 12, 4:41 pm, Daniel Berger <djber...@gmail.com> wrote:
> On Jun 12, 12:51 pm, Trans <transf...@gmail.com> wrote:
>
>
>
> > What happens when you use FileUtils.ln on a Windows system. Does it
> > fail? Is that why Jim Weirich uses #safe_ln, eg.
>
> >   LINKING_SUPPORTED = [true]
>
> >   # Attempt to do a normal file link, but fall back
> >   # to a copy if the link fails.
> >   def safe_ln(*args)
> >     unless LINKING_SUPPORTED[0]
> >       cp(*args)
> >     else
> >       begin
> >         ln(*args)
> >       rescue Errno::EOPNOTSUPP
> >         LINKING_SUPPORTED[0] = false
> >         cp(*args)
> >       end
> >     end
> >   end
>
> > If so, is there a better way? Or why wouldn't this be built into Ruby.
>
> > Thanks,
> > T.
>
> With 1.8.5 FileUtils.ln simply copied the file. Without digging into
> changelogs, I can only speculate that it may have been an unsupported
> op in earlier versions of Ruby, and that's why Jim added extra code.

Excellent. Glad I don;t have to mess with it. Thanks Dan!

> Note that with the advent of Vista the issue of symlinks on Windows
> will need to be revisited.

Indeed. I heard it supports them, but later heard that they aren't
really the same thing. Are you using Vista yet. Do you know?

T.