advice: remove use of global advice_add_embedded_repo

The external use of this variable was added in 5321399 (add: warn
when adding an embedded repository, 2017-06-14). For the use-case it's
more straightforward to track whether we've shown advice in
check_embedded_repo() than setting the global variable.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

advice.c

@@ -4,7 +4,6 @@
 #include "help.h"
 #include "string-list.h"
 
-int advice_add_embedded_repo = 1;
 int advice_graft_file_deprecated = 1;
 
 static int advice_use_color = -1;
@@ -38,7 +37,6 @@ static struct {
 	const char *name;
 	int *preference;
 } advice_config[] = {
-	{ "addEmbeddedRepo", &advice_add_embedded_repo },
 	{ "graftFileDeprecated", &advice_graft_file_deprecated },
 };
 

advice.h

@@ -5,7 +5,6 @@
 
 struct string_list;
 
-extern int advice_add_embedded_repo;
 extern int advice_graft_file_deprecated;
 
 /*

builtin/add.c

@@ -419,6 +419,7 @@ static const char embedded_advice[] = N_(
 static void check_embedded_repo(const char *path)
 {
 	struct strbuf name = STRBUF_INIT;
+	static int adviced_on_embedded_repo = 0;
 
 	if (!warn_on_embedded_repo)
 		return;
@@ -430,10 +431,10 @@ static void check_embedded_repo(const char *path)
 	strbuf_strip_suffix(&name, "/");
 
 	warning(_("adding embedded git repository: %s"), name.buf);
-	if (advice_add_embedded_repo) {
+	if (!adviced_on_embedded_repo &&
+	    advice_enabled(ADVICE_ADD_EMBEDDED_REPO)) {
 		advise(embedded_advice, name.buf, name.buf);
-		/* there may be multiple entries; advise only once */
-		advice_add_embedded_repo = 0;
+		adviced_on_embedded_repo = 1;
 	}
 
 	strbuf_release(&name);