[RFC PATCH v3 4/4] advice: move advice.graftFileDeprecated squashing to commit.[ch]

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Move the squashing of the advice.graftFileDeprecated advice over to an
external variable in commit.[ch], allowing advice() to purely use the
new-style API of invoking advice() with an enum.

See 8821e90a09a (advice: don't pointlessly suggest
--convert-graft-file, 2018-11-27) for why quieting this advice was
needed. It's more straightforward to move this code to commit.[ch] and
use it builtin/replace.c, than to go through the indirection of
advice.[ch].

Because this was the last advice_config variable we can remove that
old facility from advice.c.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 advice.c          | 16 ----------------
 advice.h          |  2 --
 builtin/replace.c |  2 +-
 commit.c          |  4 +++-
 commit.h          |  1 +
 5 files changed, 5 insertions(+), 20 deletions(-)

diff --git a/advice.c b/advice.c
index 41cfea82d0..e716ddebff 100644
--- a/advice.c
+++ b/advice.c
@@ -4,8 +4,6 @@
 #include "help.h"
 #include "string-list.h"
 
-int advice_graft_file_deprecated = 1;
-
 static int advice_use_color = -1;
 static char advice_colors[][COLOR_MAXLEN] = {
 	GIT_COLOR_RESET,
@@ -33,13 +31,6 @@ static const char *advise_get_color(enum color_advice ix)
 	return "";
 }
 
-static struct {
-	const char *name;
-	int *preference;
-} advice_config[] = {
-	{ "graftFileDeprecated", &advice_graft_file_deprecated },
-};
-
 static struct {
 	const char *key;
 	int enabled;
@@ -162,13 +153,6 @@ int git_default_advice_config(const char *var, const char *value)
 	if (!skip_prefix(var, "advice.", &k))
 		return 0;
 
-	for (i = 0; i < ARRAY_SIZE(advice_config); i++) {
-		if (strcasecmp(k, advice_config[i].name))
-			continue;
-		*advice_config[i].preference = git_config_bool(var, value);
-		break;
-	}
-
 	for (i = 0; i < ARRAY_SIZE(advice_setting); i++) {
 		if (strcasecmp(k, advice_setting[i].key))
 			continue;
diff --git a/advice.h b/advice.h
index 4b754f4c62..e380a0562e 100644
--- a/advice.h
+++ b/advice.h
@@ -5,8 +5,6 @@
 
 struct string_list;
 
-extern int advice_graft_file_deprecated;
-
 /*
  * To add a new advice, you need to:
  * Define a new advice_type.
diff --git a/builtin/replace.c b/builtin/replace.c
index cd48765911..946938d011 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -507,7 +507,7 @@ static int convert_graft_file(int force)
 	if (!fp)
 		return -1;
 
-	advice_graft_file_deprecated = 0;
+	no_graft_file_deprecated_advice = 1;
 	while (strbuf_getline(&buf, fp) != EOF) {
 		if (*buf.buf == '#')
 			continue;
diff --git a/commit.c b/commit.c
index 143f472c0f..551de4903c 100644
--- a/commit.c
+++ b/commit.c
@@ -25,6 +25,7 @@
 static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
 
 int save_commit_buffer = 1;
+int no_graft_file_deprecated_advice;
 
 const char *commit_type = "commit";
 
@@ -190,7 +191,8 @@ static int read_graft_file(struct repository *r, const char *graft_file)
 	struct strbuf buf = STRBUF_INIT;
 	if (!fp)
 		return -1;
-	if (advice_graft_file_deprecated)
+	if (!no_graft_file_deprecated_advice &&
+	    advice_enabled(ADVICE_GRAFT_FILE_DEPRECATED))
 		advise(_("Support for <GIT_DIR>/info/grafts is deprecated\n"
 			 "and will be removed in a future Git version.\n"
 			 "\n"
diff --git a/commit.h b/commit.h
index df42eb434f..3ea32766bc 100644
--- a/commit.h
+++ b/commit.h
@@ -41,6 +41,7 @@ struct commit {
 };
 
 extern int save_commit_buffer;
+extern int no_graft_file_deprecated_advice;
 extern const char *commit_type;
 
 /* While we can decorate any object with a name, it's only used for commits.. */
-- 
2.33.0.rc0.680.gf07173a897a