[PATCH 0/2] add format specifiers to display trailers

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From: Jacob Keller <jacob.keller@xxxxxxxxx>

This is based off of jt/use-trailer-api-in-commands so that we can make
use of the public trailer API that will parse a string for trailers.

I use trailers as a way to store extra commit metadata, and would like a
convenient way to obtain the trailers of a commit message easily. This
adds format specifiers to both the ref-filter API and the pretty
formats. I am not a fan of %bT but %t and %T were already taken. I don't
really know if it's ok to use %bT, since I think we used to allow "%bT"
format, though i don't think this is likely used much in practice.

I am open to suggestions for the pretty format specifier.

Additionally, I am somewhat not a fan of the way that if you have a
series of trailers which are trailer format, but not recognized, such
as the following:

<text>

My-tag: my value
My-other-tag: my other value
[non-trailer line]
My-tag: my third value

---

Git interpret-trailers will not recognize this as a trailer block
because it doesn't have any standard git tags within it. Would it be ok
to augment the trailer interpretation to say that if we have over 75%
trailers in the block that we accept it even if it doesn't have any real
recognized tags?

I say this because I regularly use extra tags in my git projects to
represent change metadata, and it would be nice if the tag block could
be recognized even if it has 1-2 lines of non-trailer formatting in
it...

Thoughts?

Jacob Keller (2):
  pretty: add %bT format for displaying trailers of a commit message
  ref-filter: add support to display trailers as part of contents

 Documentation/git-for-each-ref.txt |  2 ++
 Documentation/pretty-formats.txt   |  1 +
 pretty.c                           | 18 ++++++++++++++++++
 ref-filter.c                       | 22 +++++++++++++++++++++-
 t/t4205-log-pretty-formats.sh      | 26 ++++++++++++++++++++++++++
 t/t6300-for-each-ref.sh            | 26 ++++++++++++++++++++++++++
 6 files changed, 94 insertions(+), 1 deletion(-)

-- 
2.11.0.rc2.152.g4d04e67




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