From: Eric Sunshine <sunshine@sunshineco.com>
Date: Fri, 21 Aug 2020 21:13:09 GMT
Subject: Re: [PATCH v3 2/4] ref-filter: 'contents:trailers' show error if `:` is missing
Message-ID: <CAPig+cSxjRoBE9FNqBW_xSkct6F23HmVSPhta_b4YD+MJERcTA@mail.gmail.com>
In-Reply-To: <659b9835dcd0b38ac3972eb19c08c3bf26dccc80.1598043976.git.gitgitgadget@gmail.com>

On Fri, Aug 21, 2020 at 5:06 PM Hariom Verma via GitGitGadget
<gitgitgadget@gmail.com> wrote:
> The 'contents' atom does not show any error if used with 'trailers'
> atom and colon is missing before trailers arguments.
>
> e.g %(contents:trailersonly) works, while it shouldn't.
>
> It is definitely not an expected behavior.
>
> Let's fix this bug.
>
> Acked-by: Eric Sunshine <sunshine@sunshineco.com>

I didn't "ack" this patch. If you think some sort of attribution with
my name is warranted, then a "Helped-by:" would be more appropriate.

> Signed-off-by: Hariom Verma <hariom18599@gmail.com>
> ---
> diff --git a/ref-filter.c b/ref-filter.c
> @@ -345,9 +345,11 @@ static int contents_atom_parser(const struct ref_format *format, struct used_ato
> -       else if (skip_prefix(arg, "trailers", &arg)) {
> -               skip_prefix(arg, ":", &arg);
> -               if (trailers_atom_parser(format, atom, *arg ? arg : NULL, err))
> +       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;

This looks better and easier to reason about (but I may be biased in
thinking so).

> diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
> @@ -823,6 +823,14 @@ test_expect_success '%(trailers) rejects unknown trailers arguments' '
> +test_expect_success 'if arguments, %(contents:trailers) shows error if semicolon is missing' '

This still needs a s/semicolon/colon/ (mentioned in my previous review).