From 84a02097bf842e96f7f4dd4e4ac39e78faf64989 Mon Sep 17 00:00:00 2001
From: Craig Jennings <c@cjennings.net>
Date: Tue, 3 Feb 2026 07:39:50 -0600
Subject: feat(calendar-sync): add RECURRENCE-ID exception handling for
 recurring events

Handle rescheduled instances of recurring calendar events by processing
RECURRENCE-ID properties from ICS files. When someone reschedules a single
instance of a recurring meeting in Google Calendar, the calendar-sync module
now shows the rescheduled time instead of the original RRULE time.

New functions:
- calendar-sync--get-recurrence-id: Extract RECURRENCE-ID from event
- calendar-sync--get-recurrence-id-line: Get full line with TZID params
- calendar-sync--parse-recurrence-id: Parse into (year month day hour minute)
- calendar-sync--collect-recurrence-exceptions: Collect all exceptions by UID
- calendar-sync--occurrence-matches-exception-p: Match occurrences to exceptions
- calendar-sync--apply-single-exception: Apply exception data to occurrence
- calendar-sync--apply-recurrence-exceptions: Apply all exceptions to occurrences

Also adds DeepSat calendar configuration (dcal-file) to user-constants,
init.el, and org-agenda-config.

48 unit and integration tests added covering normal, boundary, and error cases.
---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

(limited to '.gitignore')

diff --git a/.gitignore b/.gitignore
index 18d7586d..691845df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,4 +62,5 @@ history
 # Calendar sync generated data
 /data/gcal.org
 /data/pcal.org
+/data/dcal.org
 /data/calendar-sync-state.el
-- 
cgit v1.2.3