combine-diff: abort if --ignore-matching-lines is given

The code for combined diffs doesn't currently support ignoring changes that match a regex. Abort and report that fact instead of running into a segfault. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

René Scharfe committed Jun 18, 2022 at 13:12 UTC e3d1be4237b831b517a54c70ae3c4ec3840345a4
1 file changed +4
combine-diff.c
+4
index d93782daeb..512897e3bf 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -1498,6 +1498,10 @@ void diff_tree_combined(const struct object_id *oid, int i, num_paths, needsep, show_log_first, num_parent = parents->nr; int need_generic_pathscan; + if (opt->ignore_regex_nr) + die("combined diff and '%s' cannot be used together", + "--ignore-matching-lines"); + /* nothing to do, if no parents */ if (!num_parent) return;