Re: [PATCH 1/2] t/test-lib.sh: support Korn shell by converting GIT_EXIT_OK to GIT_EXIT_CODE

[Jonathan Nieder <jrnieder@gmail.com>]

Brandon Casey wrote:

> So, rather than relying on the behavior of Bash in order to get the exit
> code from $? inside die(), change GIT_EXIT_OK into GIT_EXIT_CODE, and set
> it to the code that we want to exit with.  This allows the test suite to
> be run with the Korn shell.
> 
> Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>

Sounds like a good idea.  A few thoughts:

start_httpd() from lib-httpd.sh uses a similar pattern:

lib-httpd.sh:96:        trap 'code=$?; stop_httpd; (exit $code); die' EXIT

It is probably worth changing that, too, unless GIT_TEST_HTTPD would not
work on these platforms for some other reason.

"GIT_EXIT_CODE=1; exit 1" sounds repetitive to my ear.  It’s probably just
me, but if not, it might be worth adding a function like

	expected_exit() {
		GIT_EXIT_CODE=$1
		exit "$1"
	}

I’m not sure.

> diff --git a/t/test-lib.sh b/t/test-lib.sh
> index f2ca536..64e793a 100644
> --- a/t/test-lib.sh
> +++ b/t/test-lib.sh
[...]
> @@ -183,16 +183,16 @@ test_success=0
>  
>  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
>  }

$code can be removed now, right?

Jonathan