From: Clemens Buchacher <drizzd@aon.at>
Date: Sat, 10 Oct 2009 12:01:21 GMT
Subject: Re: [PATCH 1/2] t/test-lib.sh: support Korn shell by converting GIT_EXIT_OK to GIT_EXIT_CODE
Message-ID: <20091010120121.GA16336@localhost>
In-Reply-To: <1eweIwf5YoFwmLPWwEFN69a2f-EUnj_kgiagVJoVQYfNQeLjlpm12U84RKxhzjh0NJv36SqO12lAX2c_x0WSgA@cipher.nrlssc.navy.mil>

Hi,

On Fri, Oct 09, 2009 at 01:39:56PM -0500, Brandon Casey wrote:

> For the Korn shell, $? has the value of the last executed statement
> _before_ the call to exit.

I just installed ksh/stable (version 93s+ 2008-01-31) on Debian and it
behaves correctly. Maybe you need to upgrade? This really looks like a bug
in your shell to me.

>  die () {
>  	code=$?
> -	if test -n "$GIT_EXIT_OK"
> +	if test -n "$GIT_EXIT_CODE"
>  	then
> -		exit $code
> +		exit $GIT_EXIT_CODE
>  	else
>  		echo >&5 "FATAL: Unexpected exit with code $code"
>  		exit 1
>  	fi
>  }

So in your shell an unexpected exit will always output this?

 FATAL: Unexpected exit with code <some command>

If we can't rely on the value of $?, we should not use it.

Clemens