+static int check_ok_to_remove(const char *name, int len, int dtype,
+ struct cache_entry *ce, struct stat *st,
+ enum unpack_trees_error_types error_type,
+ struct unpack_trees_options *o)
+{
+ struct cache_entry *result;
+
+ /*
+ * It may be that the 'lstat()' succeeded even though
+ * target 'ce' was absent, because there is an old
+ * entry that is different only in case..
+ *
+ * Ignore that lstat() if it matches.
+ */
+ if (ignore_case && icase_exists(o, name, len, st))
+ return 0;
+
+ if (o->dir && excluded(o->dir, name, &dtype))
+ /*
+ * ce->name is explicitly excluded, so it is Ok to
+ * overwrite it.
+ */
+ return 0;
+ if (S_ISDIR(st->st_mode)) {
+ /*
+ * We are checking out path "foo" and
+ * found "foo/." in the working tree.
+ * This is tricky -- if we have modified
+ * files that are in "foo/" we would lose
+ * them.
+ */
+ if (verify_clean_subdirectory(ce, error_type, o) < 0)
+ return -1;
+ return 0;
+ }
+
+ /*
+ * The previous round may already have decided to
+ * delete this path, which is in a subdirectory that
+ * is being replaced with a blob.
+ */
+ result = index_name_exists(&o->result, name, len, 0);
+ if (result) {
+ if (result->ce_flags & CE_REMOVE)
+ return 0;
+ }
+
+ return o->gently ? -1 :
+ add_rejected_path(o, error_type, name);
+}
+