init: kill set_git_dir_init()

This is a pure code move, necessary to kill the global variable git_link
later (and also helps a bit in the next patch).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/init-db.c

@@ -311,34 +311,6 @@ static void create_object_directory(void)
 	strbuf_release(&path);
 }
 
-static int set_git_dir_init(const char *git_dir,
-			    const char *real_git_dir,
-			    int exist_ok)
-{
-	if (real_git_dir) {
-		struct stat st;
-
-		if (!exist_ok && !stat(git_dir, &st))
-			die(_("%s already exists"), git_dir);
-
-		if (!exist_ok && !stat(real_git_dir, &st))
-			die(_("%s already exists"), real_git_dir);
-
-		/*
-		 * make sure symlinks are resolved because we'll be
-		 * moving the target repo later on in separate_git_dir()
-		 */
-		git_link = xstrdup(real_path(git_dir));
-		set_git_dir(real_path(real_git_dir));
-	}
-	else {
-		set_git_dir(real_path(git_dir));
-		git_link = NULL;
-	}
-	startup_info->have_repository = 1;
-	return 0;
-}
-
 static void separate_git_dir(const char *git_dir)
 {
 	struct stat st;
@@ -364,9 +336,29 @@ int init_db(const char *git_dir, const char *real_git_dir,
 	    const char *template_dir, unsigned int flags)
 {
 	int reinit;
+	int exist_ok = flags & INIT_DB_EXIST_OK;
 
-	set_git_dir_init(git_dir, real_git_dir, flags & INIT_DB_EXIST_OK);
+	if (real_git_dir) {
+		struct stat st;
 
+		if (!exist_ok && !stat(git_dir, &st))
+			die(_("%s already exists"), git_dir);
+
+		if (!exist_ok && !stat(real_git_dir, &st))
+			die(_("%s already exists"), real_git_dir);
+
+		/*
+		 * make sure symlinks are resolved because we'll be
+		 * moving the target repo later on in separate_git_dir()
+		 */
+		git_link = xstrdup(real_path(git_dir));
+		set_git_dir(real_path(real_git_dir));
+	}
+	else {
+		set_git_dir(real_path(git_dir));
+		git_link = NULL;
+	}
+	startup_info->have_repository = 1;
 	git_dir = get_git_dir();
 
 	if (git_link)