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## M0p1 — Embeddable Runtime Skeleton (329 tests)
- TidalDb with builder(), health_check(), close(), and Drop-based cleanup
- TidalDbBuilder fluent API: ephemeral(), with_data_dir(), wal_dir(), cache_dir()
- Config, StorageMode, ConfigError types; Config(ConfigError) variant on LumenError
- Paths: single source of truth for directory layout (wal, items, users, creators, cache)
- TempTidalHome: test isolation helper gated behind #[cfg(test)] / test-utils feature
- 8 integration tests: tests/sandboxed_storage.rs
## M0p2 — Tooling & Diagnostics (349 tests)
- Workspace root Cargo.toml (members: ["tidal", "tidalctl"])
- tidal/build.rs: BUILD_HASH from GIT_HASH with option_env!() fallback to "dev"
- MetricsState: always-compiled Arc-shared atomics (uptime, health_ok)
- MetricsHandle (metrics feature): hand-rolled TcpListener HTTP, zero new deps
- GET /healthz → {"status":"ok","uptime_secs":N}
- GET /metrics → Prometheus text (tidaldb_uptime_seconds, health_ok, info)
- TidalDbBuilder.enable_metrics(addr) starts background metrics thread
- tidalctl binary: status + paths commands, manual std::env::args() parsing
- 7 metrics integration tests, 9 tidalctl CLI tests
## m1p4 Signal Ledger (in-progress)
- SignalLedger: DashMap<(EntityId, SignalTypeId), EntitySignalEntry>, WAL-first writes
- HotSignalState: #[repr(C, align(64))], lock-free CAS decay, out-of-order handling
- BucketedCounter: 60 per-minute + 168 per-hour circular buffers, trigger-based rotation
- CheckpointMeta + serialize/restore: 983-byte fixed records, atomic WriteBatch
- Property tests: running score matches analytical to 1e-6, decay monotonic, non-negative
- Proptest regression: signals/warm.txt
## Documentation and planning
- ROADMAP: m0p1 COMPLETE (329), m0p2 COMPLETE (349), product track milestones
- PRODUCT_ROADMAP: P0-P4 product milestone track (personal briefing beachhead)
- Milestone planning docs: milestone-0 (phases 1-3), milestone-p (phases 1-5)
- docs/research/tidaldb_tooling_and_diagnostics.md
- ARCHITECTURE.md, CLAUDE.md, VISION.md updates
## Site
- Blog: every-platform-builds-the-same-6-systems.mdx (new)
- Blog: why-tidaldb.mdx (updated)
- next.config.ts, layout.tsx, blog/page.tsx updates
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
14 lines
745 B
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14 lines
745 B
Markdown
# Task 02 — Sandboxed Storage Layout
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**Goal:** deterministic filesystem layout for embedded instances so tooling/cleanup is reliable.
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## Deliverables
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- `Paths` helper that derives `{base}/wal`, `{base}/items`, `{base}/users`, etc., and ensures directories exist with correct perms.
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- Temp-dir helper (`TempTidalHome`) for tests; implements Drop to delete directories unless `preserve=true`.
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- Documentation table describing folder purpose for future CLI use.
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## Acceptance Criteria
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- Integration test proves two builders pointing to different `TempTidalHome` roots never collide.
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- Cleanup confirmed via test that drops the helper and asserts directories removed.
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- Paths helper reused by upcoming CLI (Phase 2) — single source of truth.
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