From: Brandon Williams <bmwill@google.com>
To: Stefan Beller <sbeller@google.com>
Cc: Junio C Hamano <gitster@pobox.com>,
"git@vger.kernel.org" <git@vger.kernel.org>,
Jonathan Tan <jonathantanmy@google.com>,
Jonathan Nieder <jrnieder@gmail.com>,
Michael Haggerty <mhagger@alum.mit.edu>,
Jeff King <peff@peff.net>, Philip Oakley <philipoakley@iee.org>
Subject: Re: [PATCH 04/26] diff.c: introduce emit_diff_symbol
Date: Wed, 21 Jun 2017 14:45:51 -0700 [thread overview]
Message-ID: <20170621214551.GE53348@google.com> (raw)
In-Reply-To: <CAGZ79kYUpJxX-wBU=ALPgJwVaA8h_iJRtAu3T7p4J7qmy=U4dg@mail.gmail.com>
On 06/21, Stefan Beller wrote:
> On Wed, Jun 21, 2017 at 12:36 PM, Junio C Hamano <gitster@pobox.com> wrote:
> > Stefan Beller <sbeller@google.com> writes:
> >
> >> Signed-off-by: Stefan Beller <sbeller@google.com>
> >> ---
> >> diff.c | 22 +++++++++++++++++++---
> >> 1 file changed, 19 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/diff.c b/diff.c
> >> index 2f9722b382..89466018e5 100644
> >> --- a/diff.c
> >> +++ b/diff.c
> >> @@ -559,6 +559,24 @@ static void emit_line(struct diff_options *o, const char *set, const char *reset
> >> emit_line_0(o, set, reset, line[0], line+1, len-1);
> >> }
> >>
> >> +enum diff_symbol {
> >> + DIFF_SYMBOL_SEPARATOR,
> >
> > Drop the last comma from enum?
>
> I looked through out code base and for enums this is
> actually strictly enforced, so I guess I have to play
> by the rules here as I do not want to be the first
> to deviate from an upheld standard.
>
> This will be painful though as the next ~20 patches
> add more symbols mostly at the end, maybe I need
> to restructure that such that the last symbol stays the same
> throughout the series. Thanks for that thought.
I don't think this is strictly enforced. If you look at grep.h:197 the
enum 'grep_source_type' has a trailing comma.
>
> >
> >> +static void emit_diff_symbol(struct diff_options *o, enum diff_symbol s,
> >> + const char *line, int len)
> >> +{
> >> + switch (s) {
> >> + case DIFF_SYMBOL_SEPARATOR:
> >> + fprintf(o->file, "%s%c",
> >> + diff_line_prefix(o),
> >> + o->line_termination);
> >> + break;
> >
> > As the first patch in the "diff-symbol" subseries of this topic,
> > this change must seriously be justified. Why is it so important
> > that a printing of an empty line must be moved to a helper function,
> > which later will gain ability to show other kind of lines?
>
> Ah yes. This got lost in comparison to the currently queued series with
> diff_lines. The justification for the change was in the buffer patch,
> but now we need to have the justification here.
>
> In the old series, I had copied the same text in all these
> refactoring patches, but thought to delete them in this series. The first
> refactoring patch makes sense though.
>
> Thanks,
> Stefan
--
Brandon Williams
next prev parent reply other threads:[~2017-06-21 21:45 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170523024048.16879-1-sbeller@google.com/>
2017-05-24 21:40 ` [PATCHv5 00/17] Diff machine: highlight moved lines Stefan Beller
2017-05-24 21:40 ` [PATCHv5 01/17] diff: readability fix Stefan Beller
2017-05-24 21:40 ` [PATCHv5 02/17] diff: move line ending check into emit_hunk_header Stefan Beller
2017-05-24 21:40 ` [PATCHv5 03/17] diff.c: factor out diff_flush_patch_all_file_pairs Stefan Beller
2017-05-24 21:40 ` [PATCHv5 04/17] diff: introduce more flexible emit function Stefan Beller
2017-06-13 21:54 ` Jonathan Tan
2017-06-13 23:41 ` Stefan Beller
2017-06-13 23:46 ` Jonathan Tan
2017-05-24 21:40 ` [PATCHv5 05/17] diff.c: convert fn_out_consume to use emit_line Stefan Beller
2017-05-24 21:40 ` [PATCHv5 06/17] diff.c: convert builtin_diff to use emit_line_* Stefan Beller
2017-05-24 21:40 ` [PATCHv5 07/17] diff.c: convert emit_rewrite_diff " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 08/17] diff.c: convert emit_rewrite_lines " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 09/17] submodule.c: convert show_submodule_summary to use emit_line_fmt Stefan Beller
2017-05-24 21:40 ` [PATCHv5 10/17] diff.c: convert emit_binary_diff_body to use emit_line_* Stefan Beller
2017-05-24 21:40 ` [PATCHv5 11/17] diff.c: convert show_stats " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 12/17] diff.c: convert word diffing " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 13/17] diff.c: convert diff_flush " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 14/17] diff.c: convert diff_summary " Stefan Beller
2017-05-24 21:40 ` [PATCHv5 15/17] diff.c: emit_line includes whitespace highlighting Stefan Beller
2017-05-24 21:40 ` [PATCHv5 16/17] diff: buffer all output if asked to Stefan Beller
2017-05-25 2:26 ` Junio C Hamano
2017-05-25 5:34 ` Stefan Beller
2017-05-26 1:09 ` Junio C Hamano
2017-06-13 22:07 ` Jonathan Tan
2017-06-14 2:52 ` Stefan Beller
2017-05-24 21:40 ` [PATCHv5 17/17] diff.c: color moved lines differently Stefan Beller
2017-05-25 2:27 ` Junio C Hamano
2017-05-25 5:39 ` Stefan Beller
2017-05-25 6:44 ` [PATCHv5 00/17] Diff machine: highlight moved lines Junio C Hamano
2017-05-25 16:31 ` Stefan Beller
2017-05-26 1:20 ` Junio C Hamano
2017-05-26 19:30 ` Stefan Beller
2017-05-27 0:18 ` [PATCH 0/1] " Stefan Beller
2017-05-27 0:18 ` [PATCH 1/1] diff.c: color moved lines differently Stefan Beller
2017-05-27 7:05 ` Philip Oakley
2017-05-30 21:33 ` Stefan Beller
2017-06-01 0:24 ` [PATCH] " Stefan Beller
2017-06-13 22:51 ` Jonathan Tan
2017-06-14 18:55 ` Stefan Beller
2017-06-20 2:47 ` [PATCH 00/26] reroll of sb/diff-color-moved Stefan Beller
2017-06-20 2:47 ` [PATCH 01/26] diff.c: readability fix Stefan Beller
2017-06-20 2:47 ` [PATCH 02/26] diff.c: move line ending check into emit_hunk_header Stefan Beller
2017-06-20 2:47 ` [PATCH 03/26] diff.c: factor out diff_flush_patch_all_file_pairs Stefan Beller
2017-06-20 2:47 ` [PATCH 04/26] diff.c: introduce emit_diff_symbol Stefan Beller
2017-06-21 19:36 ` Junio C Hamano
2017-06-21 19:46 ` Stefan Beller
2017-06-21 20:26 ` Junio C Hamano
2017-06-21 21:13 ` Junio C Hamano
2017-06-21 21:23 ` Stefan Beller
2017-06-21 21:43 ` Junio C Hamano
2017-06-21 21:51 ` Stefan Beller
2017-06-21 21:45 ` Brandon Williams [this message]
2017-06-21 21:52 ` Junio C Hamano
2017-06-21 21:55 ` Brandon Williams
2017-06-20 2:47 ` [PATCH 05/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_MARKER Stefan Beller
2017-06-20 2:47 ` [PATCH 06/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO Stefan Beller
2017-06-20 2:47 ` [PATCH 07/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF Stefan Beller
2017-06-20 2:47 ` [PATCH 08/26] diff.c: migrate emit_line_checked to use emit_diff_symbol Stefan Beller
2017-06-21 20:05 ` Junio C Hamano
2017-06-22 23:30 ` Stefan Beller
2017-06-22 23:37 ` Stefan Beller
2017-06-23 4:56 ` Junio C Hamano
2017-06-20 2:47 ` [PATCH 09/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS{_PORCELAIN} Stefan Beller
2017-06-20 2:48 ` [PATCH 10/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE Stefan Beller
2017-06-20 2:48 ` [PATCH 11/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR Stefan Beller
2017-06-20 20:01 ` Jonathan Tan
2017-06-21 20:09 ` Junio C Hamano
2017-06-22 23:59 ` Stefan Beller
2017-06-20 2:48 ` [PATCH 12/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER Stefan Beller
2017-06-20 2:48 ` [PATCH 13/26] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES Stefan Beller
2017-06-21 20:13 ` Junio C Hamano
2017-06-21 20:47 ` Stefan Beller
2017-06-20 2:48 ` [PATCH 14/26] diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF Stefan Beller
2017-06-20 2:48 ` [PATCH 15/26] submodule.c: migrate diff output to use emit_diff_symbol Stefan Beller
2017-06-20 20:09 ` Jonathan Tan
2017-06-20 2:48 ` [PATCH 16/26] diff.c: convert emit_binary_diff_body " Stefan Beller
2017-06-21 20:16 ` Junio C Hamano
2017-06-20 2:48 ` [PATCH 17/26] diff.c: convert show_stats " Stefan Beller
2017-06-21 21:39 ` Brandon Williams
2017-06-21 22:16 ` Stefan Beller
2017-06-20 2:48 ` [PATCH 18/26] diff.c: convert word diffing " Stefan Beller
2017-06-20 2:48 ` [PATCH 19/26] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP Stefan Beller
2017-06-20 2:48 ` [PATCH 20/26] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY Stefan Beller
2017-06-20 2:48 ` [PATCH 21/26] diff.c: buffer all output if asked to Stefan Beller
2017-06-20 2:48 ` [PATCH 22/26] diff.c: color moved lines differently Stefan Beller
2017-06-20 20:13 ` Jonathan Tan
2017-06-20 20:57 ` Stefan Beller
2017-06-20 2:48 ` [PATCH 23/26] diff.c: color moved lines differently, plain mode Stefan Beller
2017-06-20 2:48 ` [PATCH 24/26] diff.c: add dimming to moved line detection Stefan Beller
2017-06-21 20:23 ` Junio C Hamano
2017-06-20 2:48 ` [PATCH 25/26] diff: document the new --color-moved setting Stefan Beller
2017-06-20 2:48 ` [showing-off RFC/PATCH 26/26] diff.c: have a "machine parseable" move coloring Stefan Beller
2017-06-20 2:50 ` Stefan Beller
2017-06-23 21:43 ` Ævar Arnfjörð Bjarmason
2017-06-21 21:51 ` Brandon Williams
2017-06-21 21:55 ` Junio C Hamano
2017-06-21 22:40 ` Stefan Beller
2017-06-23 1:28 ` [PATCHv2 00/25] reroll of sb/diff-color-moved Stefan Beller
2017-06-23 1:28 ` [PATCHv2 01/25] diff.c: readability fix Stefan Beller
2017-06-23 1:28 ` [PATCHv2 02/25] diff.c: move line ending check into emit_hunk_header Stefan Beller
2017-06-23 1:28 ` [PATCHv2 03/25] diff.c: factor out diff_flush_patch_all_file_pairs Stefan Beller
2017-06-23 1:28 ` [PATCHv2 04/25] diff.c: introduce emit_diff_symbol Stefan Beller
2017-06-23 20:07 ` Junio C Hamano
2017-06-23 20:13 ` Stefan Beller
2017-06-23 1:28 ` [PATCHv2 05/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_MARKER Stefan Beller
2017-06-23 1:29 ` [PATCHv2 06/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO Stefan Beller
2017-06-23 1:29 ` [PATCHv2 07/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF Stefan Beller
2017-06-23 1:29 ` [PATCHv2 08/25] diff.c: migrate emit_line_checked to use emit_diff_symbol Stefan Beller
2017-06-23 1:29 ` [PATCHv2 09/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS[_PORCELAIN] Stefan Beller
2017-06-23 1:29 ` [PATCHv2 10/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE Stefan Beller
2017-06-23 1:29 ` [PATCHv2 11/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS} Stefan Beller
2017-06-23 1:29 ` [PATCHv2 12/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER Stefan Beller
2017-06-23 1:29 ` [PATCHv2 13/25] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES Stefan Beller
2017-06-23 1:29 ` [PATCHv2 14/25] diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF Stefan Beller
2017-06-23 1:29 ` [PATCHv2 15/25] submodule.c: migrate diff output to use emit_diff_symbol Stefan Beller
2017-06-23 1:29 ` [PATCHv2 16/25] diff.c: convert emit_binary_diff_body " Stefan Beller
2017-06-23 1:29 ` [PATCHv2 17/25] diff.c: convert show_stats " Stefan Beller
2017-06-23 1:29 ` [PATCHv2 18/25] diff.c: convert word diffing " Stefan Beller
2017-06-23 1:29 ` [PATCHv2 19/25] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP Stefan Beller
2017-06-23 1:29 ` [PATCHv2 20/25] diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY Stefan Beller
2017-06-23 1:29 ` [PATCHv2 21/25] diff.c: buffer all output if asked to Stefan Beller
2017-06-23 1:29 ` [PATCHv2 22/25] diff.c: color moved lines differently Stefan Beller
2017-06-23 1:29 ` [PATCHv2 23/25] diff.c: color moved lines differently, plain mode Stefan Beller
2017-06-23 1:29 ` [PATCHv2 24/25] diff.c: add dimming to moved line detection Stefan Beller
2017-06-23 1:29 ` [PATCHv2 25/25] diff: document the new --color-moved setting Stefan Beller
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