From b426cd089503053fd203a034f3cbbe173252d5c3 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sat, 18 Jul 2026 12:57:32 -0500 Subject: fix(calendar-sync): honor BYDAY rules and drop cancelled events The expander ignored BYDAY on monthly and yearly rules and stepped DTSTART's day-of-month instead, so a "2nd Wednesday" series rendered on the 12th of every month, the wrong weekday most months. It now resolves nth-weekday entries (2WE, -1TU), bare weekdays with BYSETPOS, and yearly BYMONTH+BYDAY, so each occurrence lands on the day the rule names. Nothing read the VEVENT STATUS property, so cancelled events rendered as normal meetings: a cancelled instance of a series reappeared at its original time, and standalone cancelled events stayed on the agenda. parse-event now drops STATUS:CANCELLED events, which also kills cancelled series masters. A cancelled RECURRENCE-ID override removes its occurrence instead of overriding it. The fixes are coupled: until BYDAY generates the right dates, a cancelled override can't match the occurrence it removes. --- tests/test-calendar-sync--expand-yearly.el | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'tests/test-calendar-sync--expand-yearly.el') diff --git a/tests/test-calendar-sync--expand-yearly.el b/tests/test-calendar-sync--expand-yearly.el index ad9b8f27..c636e54a 100644 --- a/tests/test-calendar-sync--expand-yearly.el +++ b/tests/test-calendar-sync--expand-yearly.el @@ -175,5 +175,31 @@ (occurrences (calendar-sync--expand-yearly base-event rrule range))) (should (= (length occurrences) 2)))) +;;; BYMONTH + BYDAY (nth weekday) Cases +;; +;; Fixed dates are deterministic here: the expansion range is an explicit +;; parameter, not derived from the current time. + +(ert-deftest test-calendar-sync--expand-yearly-bymonth-byday-nth-weekday () + "Normal: FREQ=YEARLY;BYMONTH=3;BYDAY=2SU tracks the 2nd Sunday of March +each year (the DST clock-change shape), not DTSTART's calendar date." + (let* ((base-event (list :summary "Clocks change" + :start '(2026 3 8 2 0) + :end '(2026 3 8 3 0))) + (rrule (list :freq 'yearly :interval 1 :bymonth 3 :byday '("2SU"))) + (range (list (encode-time 0 0 0 1 1 2026) + (encode-time 0 0 0 31 12 2027))) + (occurrences (calendar-sync--expand-yearly base-event rrule range)) + (days (mapcar (lambda (occ) + (let ((s (plist-get occ :start))) + (list (nth 0 s) (nth 1 s) (nth 2 s)))) + occurrences))) + ;; 2nd Sunday of March: 2026-03-08, 2027-03-14 -- different day-of-month. + (should (equal days '((2026 3 8) (2027 3 14)))) + (dolist (occ occurrences) + (let ((s (plist-get occ :start))) + (should (= 7 (calendar-sync--date-weekday + (list (nth 0 s) (nth 1 s) (nth 2 s))))))))) + (provide 'test-calendar-sync--expand-yearly) ;;; test-calendar-sync--expand-yearly.el ends here -- cgit v1.2.3