A hand-rolled content-line model instead of ical4j: a raw (name, params, value) tree is what the round-trip requirement wants, and a typed model normalises away exactly what has to survive. lib-recur already does RRULE and java.time is native at minSdk 29, so the 2.2 MB of zone data and the registry shims buy nothing. Deviates from SYNC.md's library table — see SYNC-PLAN.md decision 4. - domain/ical: parser, serialiser, value codecs. No Android, no data types, so the floret-kit extraction stays a file move. - data/tasks/ical/VTodoMapper: VTODO <-> TaskEntity. Claims a property only when it can reproduce it exactly; everything else round-trips verbatim through TaskEntity.unknown_properties, which already existed at v1 — no migration needed, and BEGIN/END lines carry the nesting the plan thought needed a second table. - 19 fixtures as the specification, with the canonical comparison harness from SYNC.md: no property lost, modulo the enumerated allowlist. - ICalendarWriter now delegates folding and escaping rather than carrying its own copy. VALARM ownership settled: neither side writes the other's alarms. VALARMs round-trip in the residue, local reminders stay in task_alarms. The setAlarm collision was the provider's; the two stores are now disjoint.
Agendula — documentation
Agendula is a Material 3 Expressive task app for Android. It carries its
own task store — the dmfs task provider vendored under our own authority — so
it is complete and local-first with nothing else installed; an external provider
(OpenTasks / tasks.org, synced by DAVx5 / SmoothSync / DecSync) is a user choice
rather than a requirement, and our own CalDAV sync is the 1.x arc. Sibling to
Calendula. See the
top-level ../README.md for the project pitch.
Index
| Doc | What it covers |
|---|---|
ARCHITECTURE.md |
How Agendula is built today — layers, the data seam, provider resolution, the reminder engine, DI, build/tooling, manifest. Start here to work on the code. |
ROADMAP.md |
Status and what's next — milestones (M0–M6 + Posture B), what's done, open decisions, how to build/verify. |
STORAGE-AND-SYNC.md |
Where task data lives — the decision to ship our own provider, the storage modes, permissions, distribution, and the dead ends. Supersedes PLAN.md on storage. |
SYNC.md |
How data reaches a server — the CalDAV sync adapter: the VTODO ↔ TaskContract mapper, Nextcloud sign-in, the engine, libraries and their licenses. Step 5 of STORAGE-AND-SYNC.md. |
STORAGE-DECISION.md |
Keep the vendored provider, or build our own? The measured cost of both. Decided: build our own. |
OWN-STORE.md |
Agendula's own Room store — the schema, recurrence design, migration off the vendored provider, and the six-phase plan that deletes :provider. Supersedes the "keep the provider" position in STORAGE-AND-SYNC.md. |
PLAN.md |
The original implementation plan and design rationale — the A-now-B-later thesis, what transfers from Calendula, the locked decisions. The "why". |
RELEASING.md |
How to cut a release — the git-tag-as-source-of-truth flow, CI jobs, F-Droid repo, required secrets. |
../provider/PROVENANCE.md |
What the vendored :provider module is, where it came from, and every deviation from upstream dmfs. |
Also: ../CHANGELOG.md (Keep a Changelog format; tag sections
feed the release notes).
How the docs relate
- PLAN is the original design decisions (the "why"), left as the historical record. On storage it is superseded by STORAGE-AND-SYNC.
- STORAGE-AND-SYNC and SYNC are the standing decision documents: the first settles where data lives, the second how it syncs. Both record rejected alternatives on purpose, so decisions don't get relitigated.
- ARCHITECTURE is the current shape of the code (kept in sync with the source as it grows).
- ROADMAP is the moving status layer (update as milestones land).
- RELEASING is the operational runbook.