X-Recipient: archive-cygwin AT delorie DOT com
X-Spam-Check-By: sourceware.org
Date: Thu, 9 Oct 2008 15:05:40 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cygwin-1.7: mv appends .exe extension to .bat and .com files
Message-ID: <20081009130540.GA9289@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <0MKr6C-1Kl4Ya1pOX-000Qp8 AT mx DOT kundenserver DOT de> <20081002090144 DOT GA23019 AT calimero DOT vinschen DOT de> <20081009100432 DOT GR9289 AT calimero DOT vinschen DOT de> <48EDFDAD DOT 9020407 AT bmts DOT com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <48EDFDAD.9020407@bmts.com>
User-Agent: Mutt/1.5.16 (2007-06-09)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Precedence: bulk
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On Oct  9 08:48, Ralph Hempel wrote:
> Corinna Vinschen wrote:
>> On Oct  2 11:01, Corinna Vinschen wrote:
>>> On Oct  1 09:27, Herb Maeder wrote:
>>>> With a fresh install of cygwin-1.7 on a vanilla Vista system, I see that
>>>> the 'mv' command appends a .exe extension to the destination file for 
>>>> any
>>>> source files that have a .bat or .com extensions.
>
> <SNIP>
>
>> That should be fixed now in CVS.
>
> Might this issue also affect the operation of "install" with
> cygwin-1.7 on a vanilla XP-SP3?
>
> <http://cygwin.com/ml/cygwin/2008-10/msg00110.html>
>
> Install seems to strip the .exe extension in the process of copying
> files to the destination directory.

Install *copies* files.  The resulting filename is not under control of
Cygwin but exclusively under control of the copying application.  This
is different from rename and link which are OS functions and thus
implemented in Cygwin.s

To add to the confusion, try `install -s' which will add the .exe
extension to the resulting file.  The reason is that install calls
strip on the copied file and strip calls rename at one point, which in
turn adds the .exe extension.

Actually it would be possible to change the filename at copy time by
keeping track if a write to a file is the first write and if the bytes
to write are equivalent to a PE/COFF header.  If so, Cygwin could
rename foo to foo.exe without bothering the application.  That's what
U/WIN does.  I'm not yet sure if that's something we want to do, too.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/