ls-files: convert overlay_tree_on_cache to take an index

diff --git a/dir.h b/dir.h
index 17d110693d94e453bd7786dd7f6eaa273313f952..a89c13e27a4fb55883f811a2c82fb465bb14988d 100644 (file)
--- a/dir.h
+++ b/dir.h
@@ -151,7 +151,8 @@ struct dir_struct {
                DIR_NO_GITLINKS = 1<<3,
                DIR_COLLECT_IGNORED = 1<<4,
                DIR_SHOW_IGNORED_TOO = 1<<5,
-               DIR_COLLECT_KILLED_ONLY = 1<<6
+               DIR_COLLECT_KILLED_ONLY = 1<<6,
+               DIR_KEEP_UNTRACKED_CONTENTS = 1<<7
        } flags;
        struct dir_entry **entries;
        struct dir_entry **ignored;
@@ -337,6 +338,9 @@ static inline int dir_path_match(const struct dir_entry *ent,
                              has_trailing_dir);
 }
 
+int cmp_dir_entry(const void *p1, const void *p2);
+int check_dir_entry_contains(const struct dir_entry *out, const struct dir_entry *in);
+
 void untracked_cache_invalidate_path(struct index_state *, const char *);
 void untracked_cache_remove_from_index(struct index_state *, const char *);
 void untracked_cache_add_to_index(struct index_state *, const char *);