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Date: Tue, 2 Oct 2001 15:53:11 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: bash 2.04 can't complete ~/name if $HOME set to c:/users/foo?
Message-ID: <20011002155310.A2088@redhat.com>
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On Tue, Oct 02, 2001 at 09:26:34PM +0200, Ehud Karni wrote:
>On Tue, 2 Oct 2001 15:12:29 -0400, Christopher Faylor <cgf AT redhat DOT com> wrote:
>> 
>> You left out the part of my email which actually mentions how to solve this
>> problem.  There should be no need for cygpath in this case.
>> 
>> Just set the HOME environment variable to a UNIX path.  It should work fine
>> with native windows apps since HOME will be translated back to MS-DOS format
>> prior to executing the program.  That's how cygwin works.
>
>I'm sorry to say that you are wrong. It does not work on W98.
>Here is my test:

I just *knew* that this thread would degenerate into a long
misunderstanding.

Lets try again.  Cygwin has several environment variables that it
translates back and forth between MS-DOS and UNIX format.  Two obvious
ones are PATH and HOME.

When a cygwin process is first started, it translates these variables from
MS-DOS format to UNIX format for its internal use.  In most cases, when cygwin
execs a new process it converts these environment variables back into MS-DOS
format so that the new process can see native MS-DOS paths.

Just do this:

set HOME=c:\tmp
bash
echo $HOME
cmd (or command)
echo %HOME%

That should illustrate what I'm talking about.

As for the example below, it is hard to understand your thought process
since you seem to be *explicitly* setting HOME to a Windows path in a
shell script.  I don't know why you think that "c:\ehuds" qualifies as a
UNIX path in this context.  It clearly is a MS-DOS path.  Setting HOME
to a MS-DOS path short circuits the conversion that I mentioned above.

In other words, you are creating your own problems by trying to "fix"
something that isn't broken.

cgf

>EHUD-P-II-21:17:56-/etc-519# command.com /c echo ~/tst.run $HOME/xxx
>/c/ehuds/tst.run /c/ehuds/xxx
>EHUD-P-II-21:19:10-/etc-520# run-win.sh command.com /c echo ~/tst.run $HOME/xxx
>+ '[' DONE = '' ']'
>++ cnvrt_path /c/ehuds
>++ cygpath -w /c/ehuds
>+ export 'HOME=c:\ehuds'
>+ HOME=c:\ehuds
>+ CMD=
>++ cnvrt_path command.com
>++ echo command.com
>+ CMD= command.com
>++ cnvrt_path /c
>++ echo /c
>+ CMD= command.com /c
>++ cnvrt_path echo
>++ echo echo
>+ CMD= command.com /c echo
>++ cnvrt_path /c/ehuds/tst.run
>++ cygpath -w /c/ehuds/tst.run
>+ CMD= command.com /c echo c:\ehuds\tst.run
>++ cnvrt_path /c/ehuds/xxx
>++ cygpath -w /c/ehuds/xxx
>+ CMD= command.com /c echo c:\ehuds\tst.run c:\ehuds\xxx
>+ command.com /c echo 'c:\ehuds\tst.run' 'c:\ehuds\xxx'
>c:\ehuds\tst.run c:\ehuds\xxx
>
>EHUD-P-II-21:24:41-/etc-521# uname -a
>CYGWIN_98-4.10 EHUD-P-II 1.3.3(0.46/3/2) 2001-09-12 23:54 i686 unknown
>
>Ehud.
>
>
>-- 
> Ehud Karni     Mivtach - Simon  Insurance   /"\
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>     Better     Safe     Than     Sorry      / \
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>
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-- 
cgf AT cygnus DOT com                        Red Hat, Inc.
http://sources.redhat.com/            http://www.redhat.com/

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