Re: [PATCH v2 2/2] ref-filter: 'contents:trailers' show error if `:` is missing

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

Eric Sunshine <sunshine@sunshineco.com> writes:

> ...an alternative would have been something like:
>
>     else if (!strcmp(arg, "trailers")) {
>         if (trailers_atom_parser(format, atom, NULL, err))
>             return -1;
>     } else if (skip_prefix(arg, "trailers:", &arg)) {
>         if (trailers_atom_parser(format, atom, arg, err))
>             return -1;
>     }
>
> which is quite simple to reason about (though has the cost of a tiny
> bit of duplication).

Yeah, that looks quite simple and straight-forward.

>> diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
>> @@ -823,6 +823,15 @@ test_expect_success '%(trailers) rejects unknown trailers arguments' '
>> +test_expect_success 'if arguments, %(contents:trailers) shows error if semicolon is missing' '
>
> s/semicolon/colon/

Definitely.

>
>> +       # error message cannot be checked under i18n
>
> What is this comment about? I realize that you copied it from other
> nearby tests, but I find that it muddies rather than clarifies.

Yup.  If a patch changes test_cmp with test_i18ncmp, the above
message belongs to its commit log message, but it is overkill to
have it as an in-line comment in every place where test_i18ncmp gets
used.

Thanks for a review.

>> +       cat >expect <<-EOF &&
>> +       fatal: unrecognized %(contents) argument: trailersonly
>> +       EOF
>> +       test_must_fail git for-each-ref --format="%(contents:trailersonly)" 2>actual &&
>> +       test_i18ncmp expect actual
>> +'