From: Brandon Williams <bmwill@google.com>
Date: Fri, 16 Dec 2016 19:03:19 +0000 (-0800)
Subject: grep: add submodules as a grep source type
X-Git-Tag: v2.12.0-rc0~76^2~3
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/4538eef564c81c96f2874ccadc54d3c69cc0e19c?ds=inline;hp=4538eef564c81c96f2874ccadc54d3c69cc0e19c

grep: add submodules as a grep source type

Add `GREP_SOURCE_SUBMODULE` as a grep_source type and cases for this new
type in the various switch statements in grep.c.

When initializing a grep_source with type `GREP_SOURCE_SUBMODULE` the
identifier can either be NULL (to indicate that the working tree will be
used) or a SHA1 (the REV of the submodule to be grep'd).  If the
identifier is a SHA1 then we want to fall through to the
`GREP_SOURCE_SHA1` case to handle the copying of the SHA1.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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