Re: [PATCH v4/GSoC/MICRO] revision: forbid combining --graph and --no-walk

[Junio C Hamano <gitster@pobox.com>]

Dongcan Jiang <dongcan.jiang@gmail.com> writes:

> Because "--graph" is about connected history while --no-walk
> is about discrete points, it does not make sense to allow
> giving these two options at the same time. [1]
>
> This change makes a few calls to "show --graph" fail in
> t4052, but asking to show one commit with graph is a
> nonsensical thing to do. Thus, tests on "show --graph" in
> t4052 have been removed. [2,3] Same tests on "show" without
> --graph option have already been tested in 4052.

This looks almost perfect.
>
> diff --git a/t/t4052-stat-output.sh b/t/t4052-stat-output.sh
> index b68afef..a989e8f 100755
> --- a/t/t4052-stat-output.sh
> +++ b/t/t4052-stat-output.sh
> @@ -99,7 +99,7 @@ do
>  		test_cmp "$expect" actual
>  	'
>  
> -	test "$cmd" != diff || continue
> +	test "$cmd" != diff -a "$cmd" != show || continue

I think we avoid -a and -o used with test (don't we have a write-up
on this somewhere?).  Write it like this

	test "$cmd" != diff &&
        test "$cmd" != show || continue

or perhaps like this

	case "$cmd" in diff|show) continue ;; esac

Other than that I do not see anything objectionable.

Thanks, good job.