From: Junio C Hamano <gitster@pobox•com>
To: Taylor Blau <me@ttaylorr•com>
Cc: git@vger•kernel.org, peff@peff•net
Subject: Re: [PATCH v4 6/6] ref-filter.c: parse trailers arguments with %(contents) atom
Date: Mon, 02 Oct 2017 09:19:46 +0900 [thread overview]
Message-ID: <xmqqy3ous8nx.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <20171001161852.84571-6-me@ttaylorr.com> (Taylor Blau's message of "Sun, 1 Oct 2017 09:18:52 -0700")
Taylor Blau <me@ttaylorr•com> writes:
> The %(contents) atom takes a contents "field" as its argument. Since
> "trailers" is one of those fields, extend contents_atom_parser to parse
> "trailers"'s arguments when used through "%(contents)", like:
>
> %(contents:trailers:unfold,only)
>
> A caveat: trailers_atom_parser expects NULL when no arguments are given
> (see: `parse_ref_filter_atom`). To simulate this behavior without
> teaching trailers_atom_parser to accept strings with length zero,
> conditionally pass NULL to trailers_atom_parser if the arguments portion
> of the argument to %(contents) is empty.
I got an impression during the earlier rounds' review discussion
that trailers_atom_parser() will happily accept an empty string and
work correctly, so this paragraph and the conditional *arg ? NULL :
arg were both unneeded.
- arg == "" is not NULL, so we first do string_list_split() on ','
- which yields an empty list i.e. params.nr == 0
- we do not loop and leave atom->u.contents.trailer_opts untouched.
- and we set u.contents.option to C_TRAILERS
- and we clear ¶ms string list before we leave.
which is exactly the same as what happens when arg == NULL. Sooo....
>
> Signed-off-by: Taylor Blau <me@ttaylorr•com>
> ---
> ref-filter.c | 6 ++++--
> t/t6300-for-each-ref.sh | 37 +++++++++++++++++++++++++++++++++++++
> 2 files changed, 41 insertions(+), 2 deletions(-)
>
> diff --git a/ref-filter.c b/ref-filter.c
> index 43ed10a5e..2c03c2bf5 100644
> --- a/ref-filter.c
> +++ b/ref-filter.c
> @@ -212,8 +212,10 @@ static void contents_atom_parser(const struct ref_format *format, struct used_at
> atom->u.contents.option = C_SIG;
> else if (!strcmp(arg, "subject"))
> atom->u.contents.option = C_SUB;
> - else if (!strcmp(arg, "trailers"))
> - atom->u.contents.option = C_TRAILERS;
> + else if (skip_prefix(arg, "trailers", &arg)) {
> + skip_prefix(arg, ":", &arg);
> + trailers_atom_parser(atom, *arg ? NULL : arg);
> + }
> else if (skip_prefix(arg, "lines=", &arg)) {
Merge these two lines i.e.
} else if (skip_prefix(arg, "lines=", ...) {
> +test_expect_success '%(contents:trailers) rejects unknown trailers arguments' '
> + cat >expect <<-EOF &&
> + fatal: unknown %(trailers) argument: unsupported
> + EOF
> + test_must_fail git for-each-ref --format="%(contents:trailers:unsupported)" 2>actual &&
> + test_cmp expect actual
Funny indentation.
next prev parent reply other threads:[~2017-10-02 0:20 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-30 6:22 [PATCH 0/5] Support %(trailers) arguments in for-each-ref(1) Taylor Blau
2017-09-30 6:22 ` [PATCH 1/5] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-09-30 6:49 ` Jeff King
2017-09-30 6:22 ` [PATCH 2/5] t6300: refactor %(trailers) tests Taylor Blau
2017-09-30 7:01 ` Jeff King
2017-09-30 6:22 ` [PATCH 3/5] ref-filter.c: add trailer options to used_atom Taylor Blau
2017-09-30 7:10 ` Jeff King
2017-09-30 6:22 ` [PATCH 4/5] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-09-30 7:21 ` Jeff King
2017-10-01 9:08 ` Junio C Hamano
2017-10-01 9:00 ` Junio C Hamano
2017-10-02 5:05 ` Jeff King
2017-10-02 5:11 ` Taylor Blau
2017-09-30 6:22 ` [PATCH 5/5] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-09-30 7:36 ` Jeff King
2017-09-30 7:38 ` [PATCH 0/5] Support %(trailers) arguments in for-each-ref(1) Jeff King
2017-09-30 18:41 ` [PATCH v2 0/6] " Taylor Blau
2017-09-30 18:46 ` [PATCH v2 1/6] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-09-30 18:46 ` [PATCH v2 2/6] t6300: refactor %(trailers) tests Taylor Blau
2017-09-30 18:46 ` [PATCH v2 3/6] doc: 'trailers' is the preferred way to format trailers Taylor Blau
2017-09-30 18:46 ` [PATCH v2 4/6] doc: use modern "`"-style code fencing Taylor Blau
2017-09-30 18:46 ` [PATCH v2 5/6] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-09-30 18:46 ` [PATCH v2 6/6] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-10-01 0:06 ` [PATCH v2 0/6] Support %(trailers) arguments in for-each-ref(1) Taylor Blau
2017-10-01 0:10 ` [PATCH v3 1/6] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-10-01 0:10 ` [PATCH v3 2/6] t6300: refactor %(trailers) tests Taylor Blau
2017-10-01 0:10 ` [PATCH v3 3/6] doc: 'trailers' is the preferred way to format trailers Taylor Blau
2017-10-01 0:10 ` [PATCH v3 4/6] doc: use modern "`"-style code fencing Taylor Blau
2017-10-01 0:10 ` [PATCH v3 5/6] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-10-01 0:10 ` [PATCH v3 6/6] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-10-01 16:17 ` [PATCH v4 0/6] Support %(trailers) arguments in for-each-ref(1) Taylor Blau
2017-10-01 16:18 ` [PATCH v4 1/6] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-10-01 16:18 ` [PATCH v4 2/6] t6300: refactor %(trailers) tests Taylor Blau
2017-10-02 0:12 ` Junio C Hamano
2017-10-01 16:18 ` [PATCH v4 3/6] doc: 'trailers' is the preferred way to format trailers Taylor Blau
2017-10-01 16:18 ` [PATCH v4 4/6] doc: use modern "`"-style code fencing Taylor Blau
2017-10-01 23:55 ` Junio C Hamano
2017-10-02 0:06 ` Taylor Blau
2017-10-02 1:35 ` Junio C Hamano
2017-10-02 4:53 ` Jeff King
2017-10-01 16:18 ` [PATCH v4 5/6] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-10-02 0:13 ` Junio C Hamano
2017-10-01 16:18 ` [PATCH v4 6/6] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-10-02 0:19 ` Junio C Hamano [this message]
2017-10-02 0:11 ` [PATCH v4 1/6] pretty.c: delimit "%(trailers)" arguments with "," Junio C Hamano
2017-10-02 5:00 ` Jeff King
2017-10-02 0:31 ` [PATCH v5 0/6] Support %(trailers) arguments in for-each-ref(1) Taylor Blau
2017-10-02 0:32 ` [PATCH v5 1/6] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-10-02 0:33 ` [PATCH v5 2/6] t6300: refactor %(trailers) tests Taylor Blau
2017-10-02 0:33 ` [PATCH v5 3/6] doc: 'trailers' is the preferred way to format trailers Taylor Blau
2017-10-02 0:33 ` [PATCH v5 4/6] doc: use modern "`"-style code quoting Taylor Blau
2017-10-02 0:33 ` [PATCH v5 5/6] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-10-02 0:33 ` [PATCH v5 6/6] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-10-02 4:26 ` Junio C Hamano
2017-10-02 4:51 ` Junio C Hamano
2017-10-02 5:13 ` Taylor Blau
2017-10-02 5:03 ` Jeff King
2017-10-02 5:12 ` Taylor Blau
2017-10-02 5:14 ` Jeff King
2017-10-02 5:23 ` [PATCH v6 0/7] Support %(trailers) arguments in for-each-ref(1) Taylor Blau
2017-10-02 5:25 ` [PATCH v6 1/7] pretty.c: delimit "%(trailers)" arguments with "," Taylor Blau
2017-10-02 5:25 ` [PATCH v6 2/7] t4205: unfold across multiple lines Taylor Blau
2017-10-02 5:25 ` [PATCH v6 3/7] doc: 'trailers' is the preferred way to format trailers Taylor Blau
2017-10-02 5:25 ` [PATCH v6 4/7] doc: use modern "`"-style code quoting Taylor Blau
2017-10-02 5:25 ` [PATCH v6 5/7] t6300: refactor %(trailers) tests Taylor Blau
2017-10-02 5:25 ` [PATCH v6 6/7] ref-filter.c: use trailer_opts to format trailers Taylor Blau
2017-10-02 5:25 ` [PATCH v6 7/7] ref-filter.c: parse trailers arguments with %(contents) atom Taylor Blau
2017-10-02 6:51 ` Jeff King
2017-10-02 9:52 ` Junio C Hamano
2017-10-02 15:49 ` Taylor Blau
2017-10-02 23:44 ` Junio C Hamano
2017-10-02 6:56 ` [PATCH v6 0/7] Support %(trailers) arguments in for-each-ref(1) Jeff King
2017-10-03 6:24 ` Junio C Hamano
2017-10-03 6:36 ` Jeff King
2017-10-03 6:40 ` Junio C Hamano
2017-10-02 8:07 ` Junio C Hamano
2017-10-02 12:15 ` Junio C Hamano
2017-10-02 16:07 ` Taylor Blau
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