Merge branch 'bb/diff-no-index-dotdot'

* bb/diff-no-index-dotdot:
  diff-no-index: replace manual "."/".." check with is_dot_or_dotdot()
  diff-no-index: rename read_directory()

diff-no-index.c

@@ -15,8 +15,9 @@
 #include "log-tree.h"
 #include "builtin.h"
 #include "string-list.h"
+#include "dir.h"
 
-static int read_directory(const char *path, struct string_list *list)
+static int read_directory_contents(const char *path, struct string_list *list)
 {
 	DIR *dir;
 	struct dirent *e;
@@ -25,7 +26,7 @@ static int read_directory(const char *path, struct string_list *list)
 		return error("Could not open directory %s", path);
 
 	while ((e = readdir(dir)))
-		if (strcmp(".", e->d_name) && strcmp("..", e->d_name))
+		if (!is_dot_or_dotdot(e->d_name))
 			string_list_insert(list, e->d_name);
 
 	closedir(dir);
@@ -107,9 +108,9 @@ static int queue_diff(struct diff_options *o,
 		int i1, i2, ret = 0;
 		size_t len1 = 0, len2 = 0;
 
-		if (name1 && read_directory(name1, &p1))
+		if (name1 && read_directory_contents(name1, &p1))
 			return -1;
-		if (name2 && read_directory(name2, &p2)) {
+		if (name2 && read_directory_contents(name2, &p2)) {
 			string_list_clear(&p1, 0);
 			return -1;
 		}