dir.c: factor out parts of last_exclude_matching for later reuse

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

dir.c

@@ -795,6 +795,26 @@ int is_excluded_from_list(const char *pathname,
 	return -1; /* undecided */
 }
 
+static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir,
+		const char *pathname, int pathlen, const char *basename,
+		int *dtype_p)
+{
+	int i, j;
+	struct exclude_list_group *group;
+	struct exclude *exclude;
+	for (i = EXC_CMDL; i <= EXC_FILE; i++) {
+		group = &dir->exclude_list_group[i];
+		for (j = group->nr - 1; j >= 0; j--) {
+			exclude = last_exclude_matching_from_list(
+				pathname, pathlen, basename, dtype_p,
+				&group->el[j]);
+			if (exclude)
+				return exclude;
+		}
+	}
+	return NULL;
+}
+
 /*
  * Loads the exclude lists for the directory containing pathname, then
  * scans all exclude lists to determine whether pathname is excluded.
@@ -806,25 +826,13 @@ static struct exclude *last_exclude_matching(struct dir_struct *dir,
 					     int *dtype_p)
 {
 	int pathlen = strlen(pathname);
-	int i, j;
-	struct exclude_list_group *group;
-	struct exclude *exclude;
 	const char *basename = strrchr(pathname, '/');
 	basename = (basename) ? basename+1 : pathname;
 
 	prep_exclude(dir, pathname, basename-pathname);
 
-	for (i = EXC_CMDL; i <= EXC_FILE; i++) {
-		group = &dir->exclude_list_group[i];
-		for (j = group->nr - 1; j >= 0; j--) {
-			exclude = last_exclude_matching_from_list(
-				pathname, pathlen, basename, dtype_p,
-				&group->el[j]);
-			if (exclude)
-				return exclude;
-		}
-	}
-	return NULL;
+	return last_exclude_matching_from_lists(dir, pathname, pathlen,
+			basename, dtype_p);
 }
 
 /*