rebase -r: do not (re-)generate root commits with `--root` *and* `--onto`

diff --git a/builtin/rebase.c b/builtin/rebase.c
index 625f50c63779afb39cf78ba82dd43a155c86ecd6..ee2bc8b032a2fad1bf016314d31a655948683cd4 100644 (file)
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -62,7 +62,7 @@ struct rebase_options {
        const char *onto_name;
        const char *revisions;
        const char *switch_to;
-       int root;
+       int root, root_with_onto;
        struct object_id *squash_onto;
        struct commit *restrict_revision;
        int dont_finish_rebase;
@@ -374,6 +374,7 @@ static int run_rebase_interactive(struct rebase_options *opts,
        flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0;
        flags |= opts->rebase_merges ? TODO_LIST_REBASE_MERGES : 0;
        flags |= opts->rebase_cousins > 0 ? TODO_LIST_REBASE_COUSINS : 0;
+       flags |= opts->root_with_onto ? TODO_LIST_ROOT_WITH_ONTO : 0;
        flags |= command == ACTION_SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0;
 
        switch (command) {
@@ -1841,7 +1842,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
                        options.squash_onto = &squash_onto;
                        options.onto_name = squash_onto_name =
                                xstrdup(oid_to_hex(&squash_onto));
-               }
+               } else
+                       options.root_with_onto = 1;
+
                options.upstream_name = NULL;
                options.upstream = NULL;
                if (argc > 1)