grep.c: add configuration variables to show matched option

To support git-grep(1)'s new option, '--column', document and teach
grep.c how to interpret relevant configuration options, similar to those
associated with '--line-number'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/grep.c b/grep.c
index 83fe32a6a0..992673fe7e 100644
--- a/grep.c
+++ b/grep.c
@@ -96,6 +96,10 @@ int grep_config(const char *var, const char *value, void *cb)
 		opt->linenum = git_config_bool(var, value);
 		return 0;
 	}
+	if (!strcmp(var, "grep.column")) {
+		opt->columnnum = git_config_bool(var, value);
+		return 0;
+	}
 
 	if (!strcmp(var, "grep.fullname")) {
 		opt->relative = !git_config_bool(var, value);
@@ -112,6 +116,8 @@ int grep_config(const char *var, const char *value, void *cb)
 		color = opt->color_function;
 	else if (!strcmp(var, "color.grep.linenumber"))
 		color = opt->color_lineno;
+	else if (!strcmp(var, "color.grep.column"))
+		color = opt->color_columnno;
 	else if (!strcmp(var, "color.grep.matchcontext"))
 		color = opt->color_match_context;
 	else if (!strcmp(var, "color.grep.matchselected"))