Jean-Luc Makiola
2e915da588
Joins phases 1 and 2 and covers phase 3's semantics. RoomTasksDataSource implements all 14 seam methods; a StorageMode-routing delegate picks it or the provider per call, since the mode is a setting the user can change while the process lives. There is no instances table, so a series is expanded at read time by RecurrenceExpander and any RECURRENCE-ID override is substituted for the occurrence it replaces. A timed series carries each occurrence's length across; a due-anchored one has no start to offset from, so the anchor is the due date — matching how the provider instantiated the same series. Editing one occurrence writes a RECURRENCE-ID override sharing the master's UID (RFC 5545 model (a)). The provider's Detaching.java forked a brand-new task with its own UID instead — model (d), the one least compatible with CalDAV. We inherited that without ever choosing it; this is the choice. TaskFormWriter states the completion rules directly instead of working around the provider: progress and status now move together in both directions, so a task can no longer strand itself "done at 75%". TaskWriteMapper keeps the workarounds for External mode. Deletes are hard when the list has no account and tombstones when it does; master_id cascades, so a deleted series takes its overrides.
Agendula
A modern Material 3 Expressive task app for Android.
Keeps your tasks on your device, or on top of a tasks provider you already use.
Open standards, no account required.
Agendula is the task-list sibling to Calendula.
Where Calendula is a pure front-end over Android's CalendarContract, Agendula
speaks the dmfs TaskContract — the same shape DAVx5 (and SmoothSync,
DecSync, …) syncs your CalDAV VTODO tasks into.
The name rhymes with its sibling on purpose: Agendula is agenda — Latin for
“things to be done” — given Calendula's -ula ending. Calendula keeps your days;
Agendula keeps your to-dos. (A Calendula flower head is botanically a cluster of
many small florets — so the two apps are florets of one bloom.)
Where your tasks live — your choice
| Where | Sync | Needs | |
|---|---|---|---|
| On your device (default) | Agendula's own task store, bundled in the app | none yet — sync of our own is planned | nothing. No account, no permissions, no other app |
| In a provider you already use | OpenTasks or tasks.org | whatever syncs it for you — DAVx5 and friends | that app installed, and its read/write permission |
Agendula carries its own copy of the Apache-2.0 dmfs task provider, under its own name — so it coexists with OpenTasks rather than replacing it, and installing one never breaks the other. It is a fork of a proven schema, not a database written from scratch, which is why every CalDAV engine already understands it.
Your tasks are exportable as standard iCalendar .ics files at any time, because
data you can't take with you isn't really yours.
Status: backend complete, UI catching up. Storage, provider, reads and writes, smart-list filtering, a self-scheduled reminder engine, and export are built and unit-tested. The Material 3 Expressive screens are being built on top, one at a time — the storage-mode picker and export screen are not there yet. See
docs/ROADMAP.mdfor status,docs/ARCHITECTURE.mdfor how it's built, anddocs/STORAGE-AND-SYNC.mdfor why storage works the way it does.
Sync sources (by design)
In provider mode Agendula works with anything that writes to that provider — DAVx5 (CalDAV), SmoothSync, CalDAV-Sync, DecSync CC, or any Android sync adapter — because it builds on the provider, not on any one sync app. Google Tasks / Microsoft To Do are out of scope by design (proprietary; they would mean owning a sync stack). Open standards — CalDAV / iCalendar / DecSync — are the lane.
Translations
Agendula ships in English so far, and would like not to. Translations are managed on a self-hosted Weblate, and partial ones are fine — an untranslated string simply falls back to English.
No coding needed: register on the Weblate server, pick (or request) a language, and translate the strings in your browser. You can also reach this link in the app from the top of Settings → App language.
License
MIT — see LICENSE.