From: Karthik Nayak <karthik.188@gmail.com>
Date: Fri, 11 Sep 2015 15:04:16 +0000 (+0530)
Subject: ref-filter: add support for %(contents:lines=X)
X-Git-Tag: v2.7.0-rc0~137^2~6
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/1bb38e5a6a8fb6cf9b882a1a7038d649ceba0085?ds=inline;hp=1bb38e5a6a8fb6cf9b882a1a7038d649ceba0085

ref-filter: add support for %(contents:lines=X)

In 'tag.c' we can print N lines from the annotation of the tag using
the '-n<num>' option. Copy code from 'tag.c' to 'ref-filter' and
modify it to support appending of N lines from the annotation of tags
to the given strbuf.

Implement %(contents:lines=X) where X lines of the given object are
obtained.

While we're at it, remove unused "contents:<suboption>" atoms from
the `valid_atom` array.

Add documentation and test for the same.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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