[PATCH 3/4] grep: simplify color setup

["Martin Ågren" <martin.agren@gmail.com>]

The previous commit left us with only one user of the one-line wrapper
`color_set()`. We could inline it, but note how we're `xsnprintf()`-ing
all the entries in one array into another array of the same type. We
might as well just `memcpy()` everything into place.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
---
 Cc-ing Peff, who initially introduced this helper. After having inlined
 the function into the for loop, it seemed better to just copy the whole
 array. Happy to hear arguments against.

 Come to think of it, I suppose we could copy the whole struct and not
 just the color array. Hmmm...

 grep.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/grep.c b/grep.c
index 8f2009ec9f..9597cec67e 100644
--- a/grep.c
+++ b/grep.c
@@ -66,11 +66,6 @@ static const char *color_grep_slots[] = {
 	[GREP_COLOR_SEP]	    = "separator",
 };
 
-static void color_set(char *dst, const char *color_bytes)
-{
-	xsnprintf(dst, COLOR_MAXLEN, "%s", color_bytes);
-}
-
 static int parse_pattern_type_arg(const char *opt, const char *arg)
 {
 	if (!strcmp(arg, "default"))
@@ -158,7 +153,6 @@ int grep_config(const char *var, const char *value, void *cb)
 void grep_init(struct grep_opt *opt, struct repository *repo, const char *prefix)
 {
 	struct grep_opt *def = &grep_defaults;
-	int i;
 
 #if defined(USE_LIBPCRE2)
 	if (!pcre2_global_context)
@@ -189,8 +183,7 @@ void grep_init(struct grep_opt *opt, struct repository *repo, const char *prefix
 	opt->relative = def->relative;
 	opt->output = def->output;
 
-	for (i = 0; i < NR_GREP_COLORS; i++)
-		color_set(opt->colors[i], def->colors[i]);
+	memcpy(opt->colors, def->colors, sizeof(def->colors));
 }
 
 void grep_destroy(void)
-- 
2.29.2.454.gaff20da3a2