Re: [PATCH 0/9] trailer-parsing false positives

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Jeff King <peff@xxxxxxxx> writes:

> So this turned into a bit of a rabbit hole. Here's what I have so far
> (which I think is not quite ready, but I wanted to start discussing).
>
> Issues (2) and (3) are actually the same issue. The caller that does the
> bogus appending for (2) is always append_signoff(). But it always has
> just a commit message (modulo some complications, which I'll get to in a
> minute), and so fixing it with respect to (3) magically solves (2).
> I.e., the code was simply not prepared for the case of "end of string is
> not end of trailers". But since that case cannot exist, we do not have
> to deal with it. :)
>
> Now here's the tricky part. I think patches 1-8 are mostly sensible.

Yeah, nothing that made me go "Huh?" in these 8 patches.  Thanks.

> So I think there may be further opportunities for cleanup here. I'm not
> sure if we'd need to retain this behavior for git-interpret-trailers.
> AFAICT it is not documented, and I suspect is mostly historical
> accident, and not anything anybody ever wanted.

I tend to think the behaviour was not designed but it "just happens
to work that way".

> If we do keep it by default, then the "--no-divider" option I added in
> patch 4 should probably get a more generic name and cover this.
> Something like "--verbatim-input".

Perhaps.  Even if this is not covered, --verbatim-input would be a
good name for the option ;-)

> I'm going to sleep on it and see how I feel tomorrow.
>
>   [1/9]: trailer: use size_t for string offsets
>   [2/9]: trailer: use size_t for iterating trailer list
>   [3/9]: trailer: pass process_trailer_opts to trailer_info_get()
>   [4/9]: interpret-trailers: tighten check for "---" patch boundary
>   [5/9]: interpret-trailers: allow suppressing "---" divider
>   [6/9]: pretty, ref-filter: format %(trailers) with no_divider option
>   [7/9]: sequencer: ignore "---" divider when parsing trailers
>   [8/9]: append_signoff: use size_t for string offsets
>   [9/9]: sequencer: handle ignore_footer when parsing trailers
>
>  Documentation/git-interpret-trailers.txt | 10 +++-
>  builtin/interpret-trailers.c             |  1 +
>  commit.c                                 |  6 +--
>  commit.h                                 |  2 +-
>  pretty.c                                 |  3 ++
>  ref-filter.c                             |  2 +
>  sequencer.c                              | 20 ++++++--
>  sequencer.h                              |  9 +++-
>  t/t4205-log-pretty-formats.sh            | 23 +++++++++
>  t/t6300-for-each-ref.sh                  | 23 +++++++++
>  t/t7501-commit.sh                        | 16 ++++++
>  t/t7513-interpret-trailers.sh            | 42 ++++++++++++++++
>  trailer.c                                | 62 +++++++++++++-----------
>  trailer.h                                |  4 +-
>  14 files changed, 184 insertions(+), 39 deletions(-)
>
> -Peff



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