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From: "Martin Ågren" <martin.agren@gmail.com>
To: git@vger.kernel.org
Cc: Junio C Hamano <gitster@pobox.com>,
	Emily Shaffer <emilyshaffer@google.com>,
	Jeff King <peff@peff.net>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>
Subject: [PATCH v2 3/4] grep: copy struct in one fell swoop
Date: Tue, 24 Nov 2020 22:04:15 +0100	[thread overview]
Message-ID: <359355fb4eff6d99cb1baad9b72ff96e7dcda51d.1606251358.git.martin.agren@gmail.com> (raw)
In-Reply-To: <cover.1606251357.git.martin.agren@gmail.com>

We have a `struct grep_opt` with our defaults which we then copy into
the caller's struct. Rather than zeroing the target struct and copying
each element one by one, just copy everything at once. This leaves the
code simpler and more maintainable.

We don't have any ownership issues with what we're copying now and can
just greedily copy the whole thing. If and when we do need to handle
such elements (`char *`?), we must and can handle it appropriately. This
commit doesn't really change that.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
---
 grep.c | 25 ++-----------------------
 1 file changed, 2 insertions(+), 23 deletions(-)

diff --git a/grep.c b/grep.c
index 8f2009ec9f..7d740452cd 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"))
@@ -157,9 +152,6 @@ 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)
 		pcre2_global_context = pcre2_general_context_create(
@@ -171,26 +163,13 @@ void grep_init(struct grep_opt *opt, struct repository *repo, const char *prefix
 	pcre_free = free;
 #endif
 
-	memset(opt, 0, sizeof(*opt));
+	*opt = grep_defaults;
+
 	opt->repo = repo;
 	opt->prefix = prefix;
 	opt->prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
 	opt->pattern_tail = &opt->pattern_list;
 	opt->header_tail = &opt->header_list;
-
-	opt->only_matching = def->only_matching;
-	opt->color = def->color;
-	opt->extended_regexp_option = def->extended_regexp_option;
-	opt->pattern_type_option = def->pattern_type_option;
-	opt->linenum = def->linenum;
-	opt->columnnum = def->columnnum;
-	opt->max_depth = def->max_depth;
-	opt->pathname = def->pathname;
-	opt->relative = def->relative;
-	opt->output = def->output;
-
-	for (i = 0; i < NR_GREP_COLORS; i++)
-		color_set(opt->colors[i], def->colors[i]);
 }
 
 void grep_destroy(void)
-- 
2.29.2.454.gaff20da3a2


  parent reply	other threads:[~2020-11-24 22:20 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-21 18:31 [PATCH 0/4] grep: retire `init_grep_defaults()` Martin Ågren
2020-11-21 18:31 ` [PATCH 1/4] grep: don't set up a "default" repo for grep Martin Ågren
2020-11-21 18:31 ` [PATCH 2/4] grep: use designated initializers for `grep_defaults` Martin Ågren
2020-11-21 18:31 ` [PATCH 3/4] grep: simplify color setup Martin Ågren
2020-11-21 20:23   ` Jeff King
2020-11-21 20:52     ` Martin Ågren
2020-11-21 22:46     ` Junio C Hamano
2020-11-24  6:54       ` Jeff King
2020-11-21 18:31 ` [PATCH 4/4] MyFirstObjectWalk: drop `init_walken_defaults()` Martin Ågren
2020-11-23 11:03 ` [PATCH 0/4] grep: retire `init_grep_defaults()` Johannes Schindelin
2020-11-24 21:04 ` [PATCH v2 0/4] grep: simplify "grep defaults" handling Martin Ågren
2020-11-24 21:04   ` [PATCH v2 1/4] grep: don't set up a "default" repo for grep Martin Ågren
2020-11-24 21:04   ` [PATCH v2 2/4] grep: use designated initializers for `grep_defaults` Martin Ågren
2020-11-24 21:04   ` Martin Ågren [this message]
2020-11-24 22:34     ` [PATCH v2 3/4] grep: copy struct in one fell swoop Junio C Hamano
2020-11-25  6:25       ` Martin Ågren
2020-11-25  7:53         ` Junio C Hamano
2020-11-26 20:25           ` Martin Ågren
2020-11-24 21:04   ` [PATCH v2 4/4] MyFirstObjectWalk: drop `init_walken_defaults()` Martin Ågren
2020-11-25  9:27   ` [PATCH v2 0/4] grep: simplify "grep defaults" handling Ævar Arnfjörð Bjarmason
2020-11-29 19:52   ` [PATCH v3 " Martin Ågren
2020-11-29 19:52     ` [PATCH v3 1/4] grep: don't set up a "default" repo for grep Martin Ågren
2020-11-29 19:52     ` [PATCH v3 2/4] grep: use designated initializers for `grep_defaults` Martin Ågren
2020-11-29 19:52     ` [PATCH v3 3/4] grep: copy struct in one fell swoop Martin Ågren
2020-11-29 19:52     ` [PATCH v3 4/4] MyFirstObjectWalk: drop `init_walken_defaults()` Martin Ågren
2020-12-01  4:46     ` [PATCH v3 0/4] grep: simplify "grep defaults" handling Junio C Hamano

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