merge-recursive: avoid incorporating uncommitted changes in a merge

diff --git a/merge-recursive.c b/merge-recursive.c
index 1d3f8f0d22157e11c1e0db6f230e39240d2f3e63..be01f528cb4849fc68c7f082e1d65709f86147d5 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1901,8 +1901,9 @@ static int process_entry(struct merge_options *o,
                        oid = b_oid;
                        conf = _("directory/file");
                }
-               if (dir_in_way(path, !o->call_depth,
-                              S_ISGITLINK(a_mode))) {
+               if (dir_in_way(path,
+                              !o->call_depth && !S_ISGITLINK(a_mode),
+                              0)) {
                        char *new_path = unique_path(o, path, add_branch);
                        clean_merge = 0;
                        output(o, 1, _("CONFLICT (%s): There is a directory with name %s in %s. "
@@ -1951,6 +1952,13 @@ int merge_trees(struct merge_options *o,
        }
 
        if (oid_eq(&common->object.oid, &merge->object.oid)) {
+               struct strbuf sb = STRBUF_INIT;
+
+               if (index_has_changes(&sb)) {
+                       err(o, _("Dirty index: cannot merge (dirty: %s)"),
+                           sb.buf);
+                       return 0;
+               }
                output(o, 0, _("Already up to date!"));
                *result = head;
                return 1;