rev-list: documentation and test for --left/right-only

diff --git a/fast-import.c b/fast-import.c
index 785776086ccc22dcd5488e3ac0bad3318f57043e..60f26fe473ad6922166e952f4f7e5be2b79d45de 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -2231,6 +2231,12 @@ static void file_change_m(struct branch *b)
                p = uq.buf;
        }
 
+       /* Git does not track empty, non-toplevel directories. */
+       if (S_ISDIR(mode) && !memcmp(sha1, EMPTY_TREE_SHA1_BIN, 20) && *p) {
+               tree_content_remove(&b->branch_tree, p, NULL);
+               return;
+       }
+
        if (S_ISGITLINK(mode)) {
                if (inline_data)
                        die("Git links cannot be specified 'inline': %s",