sequencer: rectify empty hint in call of require_clean_work_tree()

The canonical way to represent "no error hint" is making it NULL, which shortcuts the error() call altogether. This fixes the output by removing the line which said just "error:", which would appear when the worktree is dirtied while editing the initial rebase todo file. This was introduced by 97e1873 (rebase -i: rewrite complete_action() in C, 2018-08-28), which did a somewhat inaccurate conversion from shell. To avoid that such bugs re-appear, test for the condition in require_clean_work_tree(). Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Oswald Buddenhagen committed Aug 24, 2023 at 17:00 UTC a9b5955e07793ceadaad05315c1599226d01292f
2 files changed +6 -2
sequencer.c
+1 -1
index bceb6abcb6..c01fb7bf5c 100644 --- a/sequencer.c +++ b/sequencer.c @@ -6172,7 +6172,7 @@ int complete_action(struct repository *r, struct replay_opts *opts, unsigned fla if (checkout_onto(r, opts, onto_name, &oid, orig_head)) goto cleanup; - if (require_clean_work_tree(r, "rebase", "", 1, 1)) + if (require_clean_work_tree(r, "rebase", NULL, 1, 1)) goto cleanup; todo_list_write_total_nr(&new_todo);
wt-status.c
+5 -1
index 068b76ef6d..d48ee467a1 100644 --- a/wt-status.c +++ b/wt-status.c @@ -2651,8 +2651,12 @@ int require_clean_work_tree(struct repository *r, } if (err) { - if (hint) + if (hint) { + if (!*hint) + BUG("empty hint passed to require_clean_work_tree();" + " use NULL instead"); error("%s", hint); + } if (!gently) exit(128); }