[PATCH v3 0/2] grep.c: teach --only-matching to 'git-grep(1)'

[Taylor Blau <me@ttaylorr.com>]

Hi,

Attached here is a third re-roll of my series to teach 'git grep
--only-matching'. (I didn't mention it in the thread, but I _thought_
that twice would be enough, so I think Peff's advice about not counting
on anything being the final re-roll of something applies to my thoughts,
too ;-) ).

Since last time:

  - The second patch has been amended to include the full invocation of
    'git grep' (including `--column`, `--only-matching`, and
    `--line-number`) [1].

  - The second patch has been also amended to add the new option
    (`--only-matching`) to Documentation/git-grep.txt per [2].

An inter-diff is available below, and thanks as always for your review
:-).

Thanks,
Taylor

[1]: https://public-inbox.org/git/20180703143820.GC23556@sigill.intra.peff.net/
[2]: https://public-inbox.org/git/xmqq1sckoxk8.fsf@gitster-ct.c.googlers.com/

Taylor Blau (2):
  grep.c: extract show_line_header()
  grep.c: teach 'git grep --only-matching'

 Documentation/git-grep.txt |  6 ++-
 builtin/grep.c             |  6 +++
 grep.c                     | 91 ++++++++++++++++++++++++--------------
 grep.h                     |  1 +
 t/t7810-grep.sh            | 15 +++++++
 5 files changed, 85 insertions(+), 34 deletions(-)

Inter-diff (since v2):

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 0de3493b80..be13fc3253 100644
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -17,7 +17,7 @@ SYNOPSIS
 	   [-l | --files-with-matches] [-L | --files-without-match]
 	   [(-O | --open-files-in-pager) [<pager>]]
 	   [-z | --null]
-	   [-c | --count] [--all-match] [-q | --quiet]
+	   [ -o | --only-matching ] [-c | --count] [--all-match] [-q | --quiet]
 	   [--max-depth <depth>]
 	   [--color[=<when>] | --no-color]
 	   [--break] [--heading] [-p | --show-function]
@@ -201,6 +201,10 @@ providing this option will cause it to die.
 	Output \0 instead of the character that normally follows a
 	file name.

+-o::
+--only-matching::
+  Output only the matching part of the lines.
+
 -c::
 --count::
 	Instead of showing every matched line, show the number of

--
2.18.0