Re: [PATCH libgpiod v2 2/4] tools: tests: use "$@" instead of $*

[Kent Gibson <warthog618@gmail.com>]

On Mon, May 27, 2024 at 02:02:34PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> $@ does not break up quoted arguments which is what we want in all cases
> in the bash test-suite. Use it instead of $*. While at it: prevent
> globbing with double quotes but allow variable expansion.
>
> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  tools/gpio-tools-test.bash | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/tools/gpio-tools-test.bash b/tools/gpio-tools-test.bash
> index abb2f5d..dde26b4 100755
> --- a/tools/gpio-tools-test.bash
> +++ b/tools/gpio-tools-test.bash
> @@ -27,10 +27,10 @@ GPIOSIM_APP_NAME="gpio-tools-test"
>  MIN_KERNEL_VERSION="5.17.4"
>  MIN_SHUNIT_VERSION="2.1.8"
>
> -# Run the command in $* and fail the test if the command succeeds.
> +# Run the command in $@ and fail the test if the command succeeds.
>  assert_fail() {
> -	$* || return 0
> -	fail " '$*': command did not fail as expected"
> +	"$@" || return 0
> +	fail " '$@': command did not fail as expected"
>  }
>

Ironically, shellcheck doesn't like the '$@' in the fail string[1], so you
should use $* there.

It also doesn't like looping on find results in patch 4[2], though that
is not related to your change, so leave it and I'll fix it later?

Cheers,
Kent.

[1] https://www.shellcheck.net/wiki/SC2145
[2] https://www.shellcheck.net/wiki/SC2044