From: Robert Klemme <shortcutter@...>
Date: 2007-03-21T22:00:04+09:00
Subject: Re: Cygwin + TempFile + Dir.chdir = failure

On 21.03.2007 11:48, vulpes wrote:
> I'm running ruby 1.8.5-3 for Cygwin under Win XP Pro SP 2. Here's some
> code:
> 
> require 'tempfile'
> 
> Dir.chdir("./aDir") do
>    Tempfile.open("johndoe", ".") do |f|
>       # Can be even empty
>    end
> end
> 
> With this code, the temporary file in ./aDir will not be removed. Is
> this a bug, a Cygwin/Windows "feature", or what? How to get around
> this thing?

If you do this it will be removed (regardless whether you use chdir or 
not) - at least that's the behavior I observe on my system:

Tempfile.open("johndoe", "/tmp") do |f|
    # Can be even empty
end

Basically the chdir isn't needed anyway.  It appears you hit a bug in 
the stdlib: it seems to try to delete "./<tmpfilename>" but fails 
because the file does not exist (remember that "." points to a different 
directory then).

I just had a quick check of the Tempfile code and it appears that no 
attempts are made to get an absolute path.  There is not a single 
occurrence of expand_path in tempfile.rb.

The obvious workaround is to use an absolute path (see above).

Kind regards

	robert