[Emacs-bug-tracker] bug#8850: closed (mkdir inside symlink creates wrong directory with relative parent)

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Your message dated Mon, 13 Jun 2011 16:55:32 +0200
with message-id <address@hidden>
and subject line Re: bug#8850: mkdir inside symlink creates wrong directory 
with relative parent
has caused the GNU bug report #8850,
regarding mkdir inside symlink creates wrong directory with relative parent
to be marked as done.

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-- 
8850: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8850
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> --- Begin Message ---
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> Subject: 
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> mkdir inside symlink creates wrong directory with relative parent
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> Date: 
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> Mon, 13 Jun 2011 12:50:19 +0200
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> Hi all,
>
> I was trying to search for any description helping me understand in
> what I see, but actually I didn't find any, so I'm here. I discovered
> it by using automake-1.11, because it uses relative paths a lot. So my
> simplified testcase is as follows:
>
> Have a directory structure x/y and x/z/a. Have a symbolic link from
> x/y/z that points to x/z.
>
>  mkdir -p x/y
>  mkdir -p x/z/a
>  ln -s ../z x/y/z
>
> Now go into x/y/z/a and try to create directory like that:
>
>  cd x/y/z/a
>  mkdir ../dir_xyz
>  mkdir ../../dir_xy
>  mkdir ../../../dir_x
>
> I would expet that there would be a directory like this:
>
>  x/dir_x
>  x/y/dir_xy
>  x/y/z/dir_xyz (x/z/dir_xyz)
>
> But the result is completely different:
>
>  dir_x
>  x/dir_xy
>  x/y/z/dir_xyz (x/z/dir_xyz)
>
> So when you want to create a directory in the parent structure from
> within the symbolic link, you will fail in doing so, because the
> symbolic link would be resolved during walking through parents, so you
> can get to completely different tree while creating your directory. It
> looks like a bug, because it is nowhere documented to behave like that
> (and the behaviour is strange by itself).
>
> Verified on Debian 4.0/RedHat 5.4 with coreutils 5.97 and on Gentoo
> with coreutils 8.12.
>
> Regards,
> Oldrich.
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#8850: mkdir inside symlink creates wrong directory with	relative parent
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>
>
>
> Date: 
>
> Mon, 13 Jun 2011 16:55:32 +0200
>
>
>
>
> Oldřich Jedlička wrote:
> > I was trying to search for any description helping me understand in
> > what I see, but actually I didn't find any, so I'm here. I discovered
> > it by using automake-1.11, because it uses relative paths a lot. So my
> > simplified testcase is as follows:
> >
> > Have a directory structure x/y and x/z/a. Have a symbolic link from
> > x/y/z that points to x/z.
> >
> >  mkdir -p x/y
> >  mkdir -p x/z/a
> >  ln -s ../z x/y/z
> >
> > Now go into x/y/z/a and try to create directory like that:
> >
> >  cd x/y/z/a
> >  mkdir ../dir_xyz
> >  mkdir ../../dir_xy
> >  mkdir ../../../dir_x
> >
> > I would expet that there would be a directory like this:
> >
> >  x/dir_x
> >  x/y/dir_xy
> >  x/y/z/dir_xyz (x/z/dir_xyz)
> >
> > But the result is completely different:
> >
> >  dir_x
> >  x/dir_xy
> >  x/y/z/dir_xyz (x/z/dir_xyz)
> >
> > So when you want to create a directory in the parent structure from
> > within the symbolic link, you will fail in doing so, because the
> > symbolic link would be resolved during walking through parents, so you
> > can get to completely different tree while creating your directory. It
> > looks like a bug, because it is nowhere documented to behave like that
> > (and the behaviour is strange by itself).
> >
> > Verified on Debian 4.0/RedHat 5.4 with coreutils 5.97 and on Gentoo
> > with coreutils 8.12.
>
> Loic explained that this is not a bug. (Thanks, Loic.)
> I'm marking this issue as closed.
>
>
> --- End Message ---