Reorganize packages into a modular hierarchy
Move the 18 flat packages/<name> packages into role-grouped dirs: core/, llm/, bash/, session-persistence/, ui/, support/. Group dirs are pure containers; each package keeps its @deepseek-ai/dsh-* name. Collapse the per-package tsconfig paths maps (base + typecheck) into one @deepseek-ai/dsh-* wildcard with a candidate per group, and derive the publint list from the hierarchy. Update all depth-coupled globs/configs (workspace, tsdown, vitest, eslint, knip, tsconfig includes/refs, per-package tsconfigs, generators, doc-script scopes, type-equiv manifest) and the cross-package/script relative imports in tests. Fix doc-typecheck's workspacePaths() to parse tsconfig JSONC via the TypeScript API instead of a regex comment-strip, which corrupted the new wildcard `/*/` path candidates. WIP: doc cross-links and package/RFC docs still to update.
This commit is contained in:
Tianyi Cui
@@ -0,0 +1,29 @@
|
||||
# @deepseek-ai/dsh-session-persistence-sqlite
|
||||
|
||||
A SQLite durable session-persistence backend — a second `SessionPersistence` implementation ([session persistence](../../docs/rfc/implemented/2026-06-14-session-persistence.md)), built to validate that the abstract seam and the shared `runPersistenceContract` suite are genuinely backend-agnostic. It satisfies the SAME contract as `dsh-session-persistence-jsonl` (append-only, contiguous-seq, lazy materialization, interrupted-turn close on load), expressed over `node:sqlite` rows instead of file bytes.
|
||||
|
||||
> **TODO:** this backend talks to `node:sqlite` directly. If a cordis database service (`cordis/db` / a `@cordisjs` SQL driver plugin) is adopted, route through that instead of holding a raw `DatabaseSync` here — the contract surface (`SessionPersistence`) would not change, only the storage driver.
|
||||
|
||||
## Storage model
|
||||
|
||||
Each `SessionEvent` maps 1:1 onto a row in an `events` table `(session_id, seq, type, time, data)` — `data` is the event payload as JSON text, so the row shape is the event verbatim (including `assistant/chunk`, keeping `seq` contiguous). Out-of-log metadata (`SessionHeader`) lives in a `sessions` row. A `sessions` row is written only by the first `append` — its existence is the lazy-materialization signal (`has`/`list` report exactly the sessions that have a row), so no separate column is needed.
|
||||
|
||||
The repo targets Node ≥ 24 (the root `engines` field), which includes the stable `node:sqlite` module. The database opens with `foreign_keys = ON` (so `ON DELETE CASCADE` drops a session's events with its row) and `journal_mode = WAL`. The table-layout version is stored in `PRAGMA user_version` and checked on open: a fresh database is stamped with the current `SCHEMA_VERSION`; a database written by any other, incompatible build (a non-current `user_version`, older or newer) is rejected rather than opened against an unknown layout — there is no migration (unreleased software).
|
||||
|
||||
## Contract semantics over rows
|
||||
|
||||
- **Append = a transaction.** `append` runs `BEGIN`/`COMMIT` around the batch: it materializes the `sessions` row (if still lazy) and INSERTs every event, asserting the contiguous-seq contract first (the first event's `seq` must equal the stored next-seq). A mid-batch failure (a UNIQUE violation on a duplicated seq) rolls back entirely, so the stored log and the in-memory cursor stay consistent. (`load()` already balanced the stored log, so `append` never has to repair a crash tail.)
|
||||
- **Lazy materialization.** `create()` records intent in memory only — no row is written until the first `append`. A created-but-never-appended session has no `sessions` row, so it is absent from `has()`/`list()` (which report exactly the sessions that have a row).
|
||||
- **Interrupted-turn close on load.** `load()` reads every stored event ordered by `seq` and finds the longest seq-contiguous, parseable prefix — INCLUDING the real events of an interrupted final turn after the last `turn/end` (the loop only flushes at `turn/end`, so a process killed mid-turn leaves real, fully-written rows past it). A single turn can be huge in a long-horizon task, so those events are **preserved, never truncated**: `load()` CLOSES the orphaned turn by durably appending the minimal synthetic boundary events (an error `tool/result` for every assistant tool call left unanswered, a `step/end` if a step was open, then a `turn/end` carrying `{ kind: 'interrupted' }`), inside one transaction that also DELETEs any never-fully-written torn tail row. `load()` is therefore mutating — after it the stored rows are balanced and the cursor is truthful, so the next `append` continues cleanly. The boundary (last `turn/end`, torn-tail detection) is computed from the `seq`/`type` columns so a malformed `data` in a torn tail row is never parsed (discarded, not unloadable). A parse error or `seq` gap inside the committed region (at or before the last real `turn/end`) makes the session unloadable. A session whose only turn never closed keeps its metadata row and stays present in `has()`/`list()` — the same as the JSONL backend, whose file likewise survives a first append that never reached `turn/end`.
|
||||
|
||||
## Configuration (schemastery)
|
||||
|
||||
```ts
|
||||
interface Config {
|
||||
path: string // SQLite database file path, or ':memory:' for an in-process DB
|
||||
}
|
||||
```
|
||||
|
||||
## Write path
|
||||
|
||||
Like the JSONL backend, the plugin also installs the `session/event` → buffer → `session/flush` drain: it snapshots each event when buffered (the live `session.events` object is mutable), persists a fork's seed once on `session/created`, keeps a per-session write cursor so a resumed session never re-appends stored events, and seeds existing live sessions on apply (HMR does not replay `session/created`). Dispose awaits every in-flight init + final drain and then closes the database, so no write lands after teardown.
|
||||
@@ -0,0 +1,35 @@
|
||||
{
|
||||
"name": "@deepseek-ai/dsh-session-persistence-sqlite",
|
||||
"description": "SQLite durable session persistence backend for the DeepSeek Harness",
|
||||
"version": "0.0.1",
|
||||
"private": true,
|
||||
"type": "module",
|
||||
"main": "lib/index.js",
|
||||
"types": "lib/index.d.ts",
|
||||
"exports": {
|
||||
".": {
|
||||
"types": "./lib/index.d.ts",
|
||||
"default": "./lib/index.js"
|
||||
},
|
||||
"./src/*": "./src/*",
|
||||
"./package.json": "./package.json"
|
||||
},
|
||||
"files": [
|
||||
"lib",
|
||||
"src"
|
||||
],
|
||||
"license": "BSD-3-Clause",
|
||||
"peerDependencies": {
|
||||
"@deepseek-ai/dsh-session": "^0.0.1",
|
||||
"@deepseek-ai/dsh-session-persistence": "^0.0.1",
|
||||
"cordis": "^4.0.0-rc.6"
|
||||
},
|
||||
"dependencies": {
|
||||
"schemastery": "^3.18.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@deepseek-ai/dsh-session": "workspace:^",
|
||||
"@deepseek-ai/dsh-session-persistence": "workspace:^",
|
||||
"cordis": "^4.0.0-rc.6"
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,258 @@
|
||||
/**
|
||||
* SQLite durable session-persistence backend (`@deepseek-ai/dsh-session-persistence-sqlite`).
|
||||
*
|
||||
* A SECOND {@link SessionPersistence} implementation, built to validate that the
|
||||
* abstract seam + the shared `runPersistenceContract` suite are genuinely
|
||||
* backend-agnostic: the same append-only / contiguous-seq / lazy-materialization
|
||||
* / interrupted-turn-close-on-load semantics the JSONL backend expresses over
|
||||
* file bytes, expressed here over `node:sqlite` rows. Each `SessionEvent` maps
|
||||
* 1:1 onto a row `(session_id, seq, type, time, data)`.
|
||||
*
|
||||
* Like the JSONL backend it supplies ONLY the storage primitives (the
|
||||
* {@link PersistenceBackend} hooks below — INSERT/DELETE/SELECT inside
|
||||
* transactions); all the write-path orchestration lives in the backend-agnostic
|
||||
* {@link PersistenceCoordinator} this class composes. The six public
|
||||
* {@link SessionPersistence} methods delegate to the coordinator.
|
||||
*
|
||||
* @module @deepseek-ai/dsh-session-persistence-sqlite
|
||||
*/
|
||||
|
||||
import { Context } from 'cordis'
|
||||
import z from 'schemastery'
|
||||
import { DatabaseSync } from 'node:sqlite'
|
||||
import { mkdir } from 'node:fs/promises'
|
||||
import { dirname, resolve } from 'node:path'
|
||||
import {
|
||||
SessionPersistence, PersistenceCoordinator,
|
||||
type PersistenceBackend, type StoredPrefix,
|
||||
} from '@deepseek-ai/dsh-session-persistence'
|
||||
import type { Session, SessionEvent, SessionId, SessionHeader } from '@deepseek-ai/dsh-session'
|
||||
import {
|
||||
openDatabase, rowToMeta, scanRows, type EventRow, type SessionRow,
|
||||
} from './schema.ts'
|
||||
|
||||
export { SCHEMA_VERSION } from './schema.ts'
|
||||
|
||||
/** Plugin configuration. */
|
||||
export interface Config {
|
||||
/**
|
||||
* Filesystem path to the SQLite database file. The special value `:memory:`
|
||||
* opens an in-process database (tests); a file path is created (with parent
|
||||
* dirs) on construction.
|
||||
*/
|
||||
path: string
|
||||
}
|
||||
|
||||
/**
|
||||
* The SQLite persistence backend. Load as a plugin; it registers as
|
||||
* `ctx.sessionPersistence` and (via the coordinator) installs the write-path
|
||||
* listeners. Its torn-tail marker is the seq to delete from.
|
||||
*/
|
||||
export class SessionPersistenceSqlite extends SessionPersistence implements PersistenceBackend<number> {
|
||||
static inject = ['sessions']
|
||||
|
||||
static Config: z<Config> = z.object({
|
||||
path: z.string().required(),
|
||||
})
|
||||
|
||||
/**
|
||||
* Backend label for the coordinator's dispose diagnostics. Intentionally
|
||||
* shadows cordis `Service.name` (set to `'sessionPersistence'` by the base);
|
||||
* see the JSONL backend for why this does not affect service resolution.
|
||||
*/
|
||||
override readonly name = 'session-persistence-sqlite'
|
||||
|
||||
private db!: DatabaseSync
|
||||
private ready: Promise<void>
|
||||
private coordinator: PersistenceCoordinator<number>
|
||||
|
||||
constructor(ctx: Context, public config: Config) {
|
||||
super(ctx)
|
||||
// Open the database asynchronously (the parent directory may need creating);
|
||||
// every hook awaits `ready` first. Opening synchronously would force a sync
|
||||
// mkdir and block plugin apply.
|
||||
this.ready = this.openDb(config.path)
|
||||
this.coordinator = new PersistenceCoordinator<number>(this.ctx, this)
|
||||
}
|
||||
|
||||
private async openDb(path: string): Promise<void> {
|
||||
if (path !== ':memory:') {
|
||||
const abs = resolve(path)
|
||||
await mkdir(dirname(abs), { recursive: true, mode: 0o700 })
|
||||
this.db = openDatabase(abs)
|
||||
} else {
|
||||
this.db = openDatabase(path)
|
||||
}
|
||||
}
|
||||
|
||||
// --- SessionPersistence service surface (delegated to the coordinator) ---
|
||||
|
||||
create(meta: SessionHeader): Promise<void> {
|
||||
return this.coordinator.create(meta)
|
||||
}
|
||||
|
||||
append(id: SessionId, events: readonly SessionEvent[]): Promise<void> {
|
||||
return this.coordinator.append(id, events)
|
||||
}
|
||||
|
||||
load(id: SessionId): Promise<{ meta: SessionHeader; events: SessionEvent[] }> {
|
||||
return this.coordinator.load(id)
|
||||
}
|
||||
|
||||
has(id: SessionId): Promise<boolean> {
|
||||
return this.coordinator.has(id)
|
||||
}
|
||||
|
||||
delete(id: SessionId): Promise<void> {
|
||||
return this.coordinator.delete(id)
|
||||
}
|
||||
|
||||
// `list` is BOTH the public service method and the PersistenceBackend hook —
|
||||
// one method (the SELECT below). The coordinator adds no orchestration for
|
||||
// listing, so routing it through the coordinator would just recurse. Defined
|
||||
// once, in the "PersistenceBackend hooks" section.
|
||||
|
||||
/**
|
||||
* The per-session init promises, exposed for white-box tests that await a
|
||||
* specific session's onCreated (there is no public API to await one init).
|
||||
*/
|
||||
get inits(): Map<Session, Promise<void>> {
|
||||
return this.coordinator.inits
|
||||
}
|
||||
|
||||
// --- PersistenceBackend hooks (the SQLite storage primitives) ---
|
||||
|
||||
/** Read a stored prefix by id (ids are globally unique — no scope to scan). */
|
||||
loadStored(id: SessionId): Promise<StoredPrefix<number> | undefined> {
|
||||
return this.readPrefix(id)
|
||||
}
|
||||
|
||||
/** Read a stored prefix; `cwd` is ignored (the id is globally unique in SQLite). */
|
||||
loadLive(id: SessionId, _cwd: string | undefined): Promise<StoredPrefix<number> | undefined> {
|
||||
return this.readPrefix(id)
|
||||
}
|
||||
|
||||
/**
|
||||
* Read a session's row + ordered events into a {@link StoredPrefix}. The
|
||||
* torn-tail marker is the seq from which a never-committed tail must be deleted
|
||||
* (`scanRows` already returns it as `number | undefined`).
|
||||
*/
|
||||
private async readPrefix(id: SessionId): Promise<StoredPrefix<number> | undefined> {
|
||||
await this.ready
|
||||
const row = this.rowFor(id)
|
||||
if (row === undefined) return undefined
|
||||
const meta = rowToMeta(row)
|
||||
const eventRows = this.db
|
||||
.prepare('SELECT seq, type, time, data FROM events WHERE session_id = ? ORDER BY seq')
|
||||
.all(id) as unknown as EventRow[]
|
||||
const { preserved, tornFrom } = scanRows(eventRows)
|
||||
return { meta, events: preserved, ...tornFrom !== undefined ? { tornMarker: tornFrom } : {} }
|
||||
}
|
||||
|
||||
/**
|
||||
* Durably append a batch in ONE transaction: materialize the sessions row (if
|
||||
* lazy) and INSERT every event, or roll back entirely. The transaction is the
|
||||
* atomicity + durability boundary, so a mid-batch failure (a UNIQUE violation
|
||||
* on a duplicated seq) leaves the stored log untouched.
|
||||
*/
|
||||
async appendBatch(meta: SessionHeader, events: readonly SessionEvent[], isMaterialized: boolean): Promise<void> {
|
||||
await this.ready
|
||||
const insertEvent = this.db.prepare(
|
||||
'INSERT INTO events (session_id, seq, type, time, data) VALUES (?, ?, ?, ?, ?)',
|
||||
)
|
||||
this.db.exec('BEGIN')
|
||||
try {
|
||||
if (!isMaterialized) this.writeRow(meta)
|
||||
for (const event of events) {
|
||||
insertEvent.run(meta.id, event.seq, event.type, event.time, JSON.stringify(event.data))
|
||||
}
|
||||
this.db.exec('COMMIT')
|
||||
} catch (error) {
|
||||
this.db.exec('ROLLBACK')
|
||||
throw error
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Make a crash repair durable in ONE transaction: DELETE the torn tail (from
|
||||
* `tornMarker`) and INSERT the synthetic `closers`. After COMMIT the stored rows
|
||||
* == the balanced log.
|
||||
*/
|
||||
async commitRepair(meta: SessionHeader, tornMarker: number | undefined, closers: readonly SessionEvent[]): Promise<void> {
|
||||
await this.ready
|
||||
this.db.exec('BEGIN')
|
||||
try {
|
||||
if (tornMarker !== undefined) {
|
||||
this.db.prepare('DELETE FROM events WHERE session_id = ? AND seq >= ?').run(meta.id, tornMarker)
|
||||
}
|
||||
if (closers.length > 0) {
|
||||
const insertEvent = this.db.prepare('INSERT INTO events (session_id, seq, type, time, data) VALUES (?, ?, ?, ?, ?)')
|
||||
for (const event of closers) {
|
||||
insertEvent.run(meta.id, event.seq, event.type, event.time, JSON.stringify(event.data))
|
||||
}
|
||||
}
|
||||
this.db.exec('COMMIT')
|
||||
} catch (error) {
|
||||
// The DELETE+INSERT cannot collide (a row at a closer's seq is preserved or
|
||||
// deleted as torn first); this rolls back a DB-level failure (disk full,
|
||||
// etc.), unreachable in test.
|
||||
/* v8 ignore start */
|
||||
this.db.exec('ROLLBACK')
|
||||
throw error
|
||||
/* v8 ignore stop */
|
||||
}
|
||||
}
|
||||
|
||||
/** Remove a session's row (ON DELETE CASCADE drops its events). */
|
||||
async deleteStored(id: SessionId): Promise<void> {
|
||||
await this.ready
|
||||
this.db.prepare('DELETE FROM sessions WHERE id = ?').run(id)
|
||||
}
|
||||
|
||||
/** List all materialized sessions' metadata (every row is a materialized session). */
|
||||
async list(): Promise<SessionHeader[]> {
|
||||
await this.ready
|
||||
const rows = this.db
|
||||
.prepare('SELECT * FROM sessions')
|
||||
.all() as unknown as SessionRow[]
|
||||
return rows.map(rowToMeta)
|
||||
}
|
||||
|
||||
/** Close the database handle (awaited by the coordinator's dispose, post-drain). */
|
||||
async close(): Promise<void> {
|
||||
await this.ready
|
||||
this.db.close()
|
||||
}
|
||||
|
||||
// --- row helpers ---
|
||||
|
||||
/** Fetch a session's row, or undefined if absent. */
|
||||
private rowFor(id: SessionId): SessionRow | undefined {
|
||||
return this.db.prepare('SELECT * FROM sessions WHERE id = ?').get(id) as unknown as SessionRow | undefined
|
||||
}
|
||||
|
||||
/**
|
||||
* Insert-or-replace a session's metadata row. The only caller is the first
|
||||
* materializing `appendBatch`, so writing the row IS the materialization (its
|
||||
* existence is the signal `has`/`list` read).
|
||||
*/
|
||||
private writeRow(meta: SessionHeader): void {
|
||||
this.db.prepare(`
|
||||
INSERT INTO sessions (id, version, created_at, cwd, parent_session)
|
||||
VALUES (?, ?, ?, ?, ?)
|
||||
ON CONFLICT(id) DO UPDATE SET
|
||||
version = excluded.version,
|
||||
created_at = excluded.created_at,
|
||||
cwd = excluded.cwd,
|
||||
parent_session = excluded.parent_session
|
||||
`).run(
|
||||
meta.id,
|
||||
meta.version,
|
||||
meta.createdAt,
|
||||
meta.cwd ?? null,
|
||||
meta.parentSession ?? null,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
export default SessionPersistenceSqlite
|
||||
@@ -0,0 +1,182 @@
|
||||
/**
|
||||
* Schema + load-time helpers for the SQLite session-persistence backend: the
|
||||
* DDL (a `sessions` metadata table and a 1:1 `events` row per `SessionEvent`),
|
||||
* the database open/configure step, and the last-`turn/end` cut that gives the
|
||||
* SQLite backend the SAME crash-tail-on-load semantics as the JSONL backend.
|
||||
*
|
||||
* @module dsh-session-persistence-sqlite/schema
|
||||
*/
|
||||
|
||||
import { DatabaseSync } from 'node:sqlite'
|
||||
import type { SessionEvent, SessionId, SessionHeader } from '@deepseek-ai/dsh-session'
|
||||
|
||||
/**
|
||||
* The on-disk schema version. Bumped only on a breaking change to the table
|
||||
* layout; orthogonal to a session's own `version` (which versions the EVENT
|
||||
* vocabulary, stored per session in the `sessions` row).
|
||||
*/
|
||||
export const SCHEMA_VERSION = 2
|
||||
|
||||
/**
|
||||
* A row of the `sessions` table — the out-of-log metadata ({@link SessionHeader}).
|
||||
* The row's EXISTENCE is the materialization signal: it is written only by the
|
||||
* first `append` (lazy materialization), so a created-but-never-appended
|
||||
* session has no row and is absent from `has`/`list`, mirroring the JSONL
|
||||
* backend's "no file until first append".
|
||||
*/
|
||||
export interface SessionRow {
|
||||
id: string
|
||||
version: number
|
||||
created_at: number
|
||||
cwd: string | null
|
||||
parent_session: string | null
|
||||
}
|
||||
|
||||
/** An `events` table row: one `SessionEvent` mapped 1:1 (`data` is JSON text). */
|
||||
export interface EventRow {
|
||||
seq: number
|
||||
type: string
|
||||
time: number
|
||||
data: string
|
||||
}
|
||||
|
||||
/**
|
||||
* Open the database at `path` and apply the schema + pragmas. `foreign_keys`
|
||||
* makes `ON DELETE CASCADE` drop a session's events with its row; `journal_mode
|
||||
* = WAL` matches the durability model the ADR records (the row shape maps 1:1
|
||||
* onto `SessionEvent`; opencode runs this exact shape on SQLite/WAL).
|
||||
*
|
||||
* The table-layout version is persisted in SQLite's `PRAGMA user_version` and
|
||||
* checked on open: a fresh database (user_version 0) is stamped with the
|
||||
* current {@link SCHEMA_VERSION}; an existing database whose version is NOT the
|
||||
* current one (written by a different, incompatible build — older or newer) is
|
||||
* REJECTED rather than opened against a layout this build does not understand.
|
||||
* There are no migrations: v1 had a different `sessions` layout and is not
|
||||
* upgraded in place.
|
||||
*/
|
||||
export function openDatabase(path: string): DatabaseSync {
|
||||
const db = new DatabaseSync(path)
|
||||
db.exec('PRAGMA foreign_keys = ON')
|
||||
db.exec('PRAGMA journal_mode = WAL')
|
||||
// `PRAGMA user_version` always returns exactly one row { user_version }.
|
||||
const { user_version: onDisk } = db.prepare('PRAGMA user_version').get() as { user_version: number }
|
||||
if (onDisk !== 0 && onDisk !== SCHEMA_VERSION) {
|
||||
db.close()
|
||||
throw new Error(`session database at "${path}" has schema version ${onDisk}, incompatible with this build (${SCHEMA_VERSION})`)
|
||||
}
|
||||
if (onDisk === 0) {
|
||||
// Fresh (or pre-versioning) database: stamp the current layout version.
|
||||
// PRAGMA does not accept bound parameters, so interpolate the integer
|
||||
// constant (SCHEMA_VERSION is a trusted in-code number, not user input).
|
||||
db.exec(`PRAGMA user_version = ${SCHEMA_VERSION}`)
|
||||
}
|
||||
db.exec(`
|
||||
CREATE TABLE IF NOT EXISTS sessions (
|
||||
id TEXT PRIMARY KEY,
|
||||
version INTEGER NOT NULL,
|
||||
created_at INTEGER NOT NULL,
|
||||
cwd TEXT,
|
||||
parent_session TEXT
|
||||
) STRICT
|
||||
`)
|
||||
db.exec(`
|
||||
CREATE TABLE IF NOT EXISTS events (
|
||||
session_id TEXT NOT NULL REFERENCES sessions(id) ON DELETE CASCADE,
|
||||
seq INTEGER NOT NULL,
|
||||
type TEXT NOT NULL,
|
||||
time INTEGER NOT NULL,
|
||||
data TEXT NOT NULL,
|
||||
PRIMARY KEY (session_id, seq)
|
||||
) STRICT
|
||||
`)
|
||||
return db
|
||||
}
|
||||
|
||||
/** Reconstruct the {@link SessionHeader} from a `sessions` row. */
|
||||
export function rowToMeta(row: SessionRow): SessionHeader {
|
||||
return {
|
||||
version: row.version,
|
||||
id: row.id as SessionId,
|
||||
createdAt: row.created_at,
|
||||
...row.cwd !== null ? { cwd: row.cwd } : {},
|
||||
...row.parent_session !== null ? { parentSession: row.parent_session as SessionId } : {},
|
||||
}
|
||||
}
|
||||
|
||||
/** Reconstruct a {@link SessionEvent} from an `events` row (parses `data`). */
|
||||
export function rowToEvent(row: EventRow): SessionEvent {
|
||||
return {
|
||||
type: row.type,
|
||||
seq: row.seq,
|
||||
time: row.time,
|
||||
data: JSON.parse(row.data) as SessionEvent['data'],
|
||||
} as SessionEvent
|
||||
}
|
||||
|
||||
/**
|
||||
* The preserved prefix of an ordered event-row list (mirrors the JSONL
|
||||
* backend's `scanLog`): the longest prefix of complete, seq-contiguous,
|
||||
* parseable rows, PLUS the seq from which a never-committed torn tail must be
|
||||
* deleted (or `undefined` if the whole list is intact).
|
||||
*
|
||||
* A crash can leave a durable log whose final turn never closed: real,
|
||||
* fully-written rows sit after the last `turn/end`. Those are PRESERVED — a
|
||||
* single turn can be huge in a long-horizon task, so truncating it would
|
||||
* destroy real work; the backend closes the orphaned open turn with a synthetic
|
||||
* `turn/end {kind:'interrupted'}` on load (the session-persistence RFC). The ONLY thing excluded is
|
||||
* a torn trailing fragment — a row whose `data` never parses, or a seq gap —
|
||||
* AFTER the last committed `turn/end`; that bounds the preserved region and its
|
||||
* seq is returned as `tornFrom` so `load` can physically delete it.
|
||||
*
|
||||
* The last `turn/end` is computed from the `type` COLUMN (never parsing tail
|
||||
* `data`), so a malformed `data` in an uncommitted tail row is discarded rather
|
||||
* than making the session unloadable. A parse error or seq gap AT OR BEFORE the
|
||||
* last committed `turn/end` is committed-data corruption and throws.
|
||||
*
|
||||
* This relies on the session-log invariant that every event lives inside a turn
|
||||
* (`Session.append` enforces it): only the final turn can be open, so the
|
||||
* preserved tail is at most one unclosed turn.
|
||||
*/
|
||||
export function scanRows(rows: readonly EventRow[]): { preserved: SessionEvent[]; tornFrom?: number } {
|
||||
// Pass 1: parse each row's data; a row whose data is not valid JSON is a hole.
|
||||
// (The seq/type COLUMNS are always present even when `data` is corrupt.)
|
||||
interface Parsed { ok: boolean; event?: SessionEvent }
|
||||
const parsed: Parsed[] = rows.map((row) => {
|
||||
try {
|
||||
return { ok: true, event: rowToEvent(row) }
|
||||
} catch {
|
||||
return { ok: false }
|
||||
}
|
||||
})
|
||||
|
||||
// The last index that is a valid `turn/end` — the last fully-committed
|
||||
// boundary (the loop flushes only at turn/end).
|
||||
let lastTurnEnd = -1
|
||||
for (let i = parsed.length - 1; i >= 0; i--) {
|
||||
if (parsed[i]?.ok && rows[i]?.type === 'turn/end') { lastTurnEnd = i; break }
|
||||
}
|
||||
|
||||
// Walk the longest PREFIX of complete, seq-contiguous, parseable rows
|
||||
// (row i has seq === i). This includes the fully-written rows of an
|
||||
// interrupted final turn AFTER the last turn/end — real work, never
|
||||
// truncated. The walk stops at the first hole:
|
||||
// - at or before the last committed turn/end → committed corruption (throw);
|
||||
// - after it (or no committed turn/end) → tolerated torn tail (stop).
|
||||
const preserved: SessionEvent[] = []
|
||||
for (let i = 0; i < rows.length; i++) {
|
||||
const p = parsed[i]
|
||||
if (!p?.ok || p.event === undefined) {
|
||||
if (i <= lastTurnEnd) throw new Error(`corrupt session log: unparsable committed event at seq ${rows[i]?.seq}`)
|
||||
break // torn tail fragment after the last turn/end — stop, tolerate
|
||||
}
|
||||
if (p.event.seq !== i) {
|
||||
if (i <= lastTurnEnd) throw new Error(`corrupt session log: seq gap in committed region (expected ${i}, got ${p.event.seq})`)
|
||||
break // gap after the last turn/end — torn tail, stop
|
||||
}
|
||||
preserved.push(p.event)
|
||||
}
|
||||
|
||||
// Any rows past the preserved prefix are a never-committed torn tail; their
|
||||
// first seq is the deletion point for load's physical repair.
|
||||
return preserved.length < rows.length ? { preserved, tornFrom: preserved.length } : { preserved }
|
||||
}
|
||||
@@ -0,0 +1,375 @@
|
||||
import { afterEach, describe, expect, it } from 'vitest'
|
||||
import { Context } from 'cordis'
|
||||
import { mkdtemp, rm } from 'node:fs/promises'
|
||||
import { tmpdir } from 'node:os'
|
||||
import { join } from 'node:path'
|
||||
import SessionStore from '@deepseek-ai/dsh-session'
|
||||
import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'
|
||||
import SessionPersistenceSqlite, { SCHEMA_VERSION } from '@deepseek-ai/dsh-session-persistence-sqlite'
|
||||
import { openDatabase, scanRows, type EventRow } from '../src/schema.ts'
|
||||
import { runPersistenceContract, meta, oneTurnLog } from '../../session-persistence/tests/contract.ts'
|
||||
import { runCoordinatorContract, type CoordinatorFixture } from '../../session-persistence/tests/coordinator-contract.ts'
|
||||
|
||||
const dirs: string[] = []
|
||||
afterEach(async () => { for (const d of dirs.splice(0)) await rm(d, { recursive: true, force: true }) })
|
||||
|
||||
async function freshDbPath(): Promise<string> {
|
||||
const dir = await mkdtemp(join(tmpdir(), 'dsh-sqlite-'))
|
||||
dirs.push(dir)
|
||||
return join(dir, 'sessions.db')
|
||||
}
|
||||
|
||||
/** A context with the session store + SQLite backend, plus a teardown. */
|
||||
async function backend(path = ':memory:'): Promise<{ ctx: Context; dispose: () => Promise<void> }> {
|
||||
const ctx = new Context()
|
||||
await ctx.plugin(SessionStore)
|
||||
const fiber = await ctx.plugin(SessionPersistenceSqlite, { path })
|
||||
return { ctx, dispose: () => fiber.dispose() }
|
||||
}
|
||||
|
||||
// The payoff: the SAME backend-agnostic contract the JSONL backend runs, now
|
||||
// proving the SQLite backend satisfies identical semantics.
|
||||
runPersistenceContract('sqlite', async () => {
|
||||
const ctx = new Context()
|
||||
await ctx.plugin(SessionStore)
|
||||
const fiber = await ctx.plugin(SessionPersistenceSqlite, { path: ':memory:' })
|
||||
return {
|
||||
persistence: ctx.sessionPersistence,
|
||||
dispose: async () => { await fiber.dispose() },
|
||||
}
|
||||
})
|
||||
|
||||
// Run the shared coordinator orchestration suite against the real SQLite backend.
|
||||
// A FILE-backed db (not :memory:) is the shared storage scope so two mounted
|
||||
// instances see the same rows (HMR/reload). `corruptTail` INSERTs a row past the
|
||||
// committed seq whose `data` is invalid JSON — a never-committed torn tail that
|
||||
// drives the coordinator's commitRepair-with-tornMarker branch over real db rows.
|
||||
runCoordinatorContract('sqlite', async (): Promise<CoordinatorFixture> => {
|
||||
const dir = await mkdtemp(join(tmpdir(), 'dsh-sqlite-coord-'))
|
||||
const path = join(dir, 'sessions.db')
|
||||
return {
|
||||
mount: async ctx => ctx.plugin(SessionPersistenceSqlite, { path }),
|
||||
corruptTail: async (id) => {
|
||||
// A row past the committed region whose `data` does not parse: scanRows
|
||||
// bounds the preserved prefix at it and returns its seq as tornFrom, which
|
||||
// the backend surfaces to the coordinator as the tornMarker to delete from.
|
||||
const db = openDatabase(path)
|
||||
const next = (db.prepare('SELECT COALESCE(MAX(seq), -1) + 1 AS n FROM events WHERE session_id = ?')
|
||||
.get(id) as { n: number }).n
|
||||
db.prepare('INSERT INTO events (session_id, seq, type, time, data) VALUES (?, ?, ?, ?, ?)')
|
||||
.run(id, next, 'assistant/chunk', 99, '{not valid json')
|
||||
db.close()
|
||||
},
|
||||
cleanup: async () => { await rm(dir, { recursive: true, force: true }) },
|
||||
}
|
||||
})
|
||||
|
||||
describe('scanRows', () => {
|
||||
// scanRows works off EventRows (data is a JSON string column); build them from
|
||||
// SessionEvents so the unit tests read in terms of the event vocabulary.
|
||||
const rows = (events: SessionEvent[]): EventRow[] =>
|
||||
events.map(e => ({ seq: e.seq, type: e.type, time: e.time, data: JSON.stringify(e.data) }))
|
||||
|
||||
it('preserves the full log when it ends exactly on a turn/end (no torn tail)', () => {
|
||||
const { preserved, tornFrom } = scanRows(rows(oneTurnLog()))
|
||||
expect(preserved).toEqual(oneTurnLog())
|
||||
expect(tornFrom).toBeUndefined()
|
||||
})
|
||||
|
||||
it('PRESERVES the real events of an interrupted turn after the last turn/end', () => {
|
||||
// turn 1 committed (0..5) + a crashed turn 2 (turn/start 6, step/start 7, no
|
||||
// close): all 8 rows are intact, so the whole prefix is preserved and there
|
||||
// is no torn fragment to delete. (load() then synthesizes the closers.)
|
||||
const withOpenTurn: SessionEvent[] = [
|
||||
...oneTurnLog(),
|
||||
{ type: 'turn/start', seq: 6, time: 7, data: { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'step/start', seq: 7, time: 8, data: { turn: 2, step: 1 } },
|
||||
]
|
||||
const { preserved, tornFrom } = scanRows(rows(withOpenTurn))
|
||||
expect(preserved.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7])
|
||||
expect(tornFrom).toBeUndefined()
|
||||
})
|
||||
|
||||
it('preserves the contiguous prefix and flags a torn tail at a seq gap', () => {
|
||||
// A gap after seq 0 (no committed turn/end): seq 0 is the preserved
|
||||
// interrupted-turn event; the gap bounds it and marks the torn fragment.
|
||||
const gapped: SessionEvent[] = [
|
||||
{ type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'step/start', seq: 2, time: 2, data: { turn: 1, step: 1 } }, // seq 1 missing
|
||||
]
|
||||
const { preserved, tornFrom } = scanRows(rows(gapped))
|
||||
expect(preserved.map(e => e.seq)).toEqual([0])
|
||||
expect(tornFrom).toBe(1)
|
||||
})
|
||||
|
||||
it('an empty log preserves nothing and has no torn tail', () => {
|
||||
expect(scanRows([])).toEqual({ preserved: [] })
|
||||
})
|
||||
|
||||
it('throws on a seq gap inside the committed region (before the last turn/end)', () => {
|
||||
const gapped: SessionEvent[] = [
|
||||
{ type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'step/start', seq: 2, time: 2, data: { turn: 1, step: 1 } }, // seq 1 missing
|
||||
{ type: 'turn/end', seq: 3, time: 3, data: { turn: 1, reason: { kind: 'completed' } } },
|
||||
]
|
||||
expect(() => scanRows(rows(gapped))).toThrow(/seq gap in committed region/)
|
||||
})
|
||||
|
||||
it('throws on an unparsable row inside the committed region', () => {
|
||||
const withCorruptCommitted: EventRow[] = [
|
||||
{ seq: 0, type: 'turn/start', time: 1, data: '{not json' }, // corrupt, sits before a turn/end
|
||||
{ seq: 1, type: 'turn/end', time: 2, data: JSON.stringify({ turn: 1, reason: { kind: 'completed' } }) },
|
||||
]
|
||||
expect(() => scanRows(withCorruptCommitted)).toThrow(/unparsable committed event/)
|
||||
})
|
||||
|
||||
it('tolerates an unparsable torn-tail row after the last turn/end', () => {
|
||||
const withCorruptTail: EventRow[] = [
|
||||
...rows(oneTurnLog()),
|
||||
{ seq: 6, type: 'turn/start', time: 7, data: '{not json' }, // torn fragment, no committed turn/end after
|
||||
]
|
||||
const { preserved, tornFrom } = scanRows(withCorruptTail)
|
||||
expect(preserved).toEqual(oneTurnLog())
|
||||
expect(tornFrom).toBe(6)
|
||||
})
|
||||
})
|
||||
|
||||
describe('SessionPersistenceSqlite: durability and crash semantics', () => {
|
||||
it('an interrupted turn (rows after the last turn/end) is PRESERVED and closed during load', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('crash')
|
||||
// Run 1: persist a complete turn, then a half-written second turn (no turn/end).
|
||||
const ctx1 = new Context()
|
||||
await ctx1.plugin(SessionStore)
|
||||
const fiber1 = await ctx1.plugin(SessionPersistenceSqlite, { path })
|
||||
await ctx1.sessionPersistence.create(m)
|
||||
await ctx1.sessionPersistence.append(m.id, oneTurnLog())
|
||||
await ctx1.sessionPersistence.append(m.id, [
|
||||
{ type: 'turn/start', seq: 6, time: 7, data: { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'step/start', seq: 7, time: 8, data: { turn: 2, step: 1 } },
|
||||
])
|
||||
await fiber1.dispose()
|
||||
|
||||
// Run 2: load PRESERVES the interrupted turn's real events (a turn can be huge
|
||||
// — never truncated) and closes the orphaned turn with synthetic boundary
|
||||
// events: step/end (the step was open) then turn/end {interrupted}.
|
||||
const ctx2 = new Context()
|
||||
await ctx2.plugin(SessionStore)
|
||||
const fiber2 = await ctx2.plugin(SessionPersistenceSqlite, { path })
|
||||
const loaded = await ctx2.sessionPersistence.load(m.id)
|
||||
expect(loaded.events.map(e => e.type)).toEqual([
|
||||
'turn/start', 'user/message', 'step/start', 'assistant/message', 'step/end', 'turn/end', // turn 1
|
||||
'turn/start', 'step/start', 'step/end', 'turn/end', // turn 2: real events + synthetic closers
|
||||
])
|
||||
expect(loaded.events.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
|
||||
const last = loaded.events.at(-1)!
|
||||
expect(last.type === 'turn/end' && last.data.reason).toEqual({ kind: 'interrupted' })
|
||||
|
||||
// load durably closed the turn, so the next append continues at the balanced
|
||||
// length (seq 10) and a reload round-trips identically.
|
||||
await ctx2.sessionPersistence.append(m.id, [
|
||||
{ type: 'turn/start', seq: 10, time: 9, data: { turn: 3, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'turn/end', seq: 11, time: 10, data: { turn: 3, reason: { kind: 'completed' } } },
|
||||
])
|
||||
const reloaded = await ctx2.sessionPersistence.load(m.id)
|
||||
expect(reloaded.events.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
|
||||
await fiber2.dispose()
|
||||
})
|
||||
|
||||
it('load() durably closes the interrupted turn: the synthetic closers are on disk after load', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('load-closes')
|
||||
const b1 = await backend(path)
|
||||
await b1.ctx.sessionPersistence.create(m)
|
||||
await b1.ctx.sessionPersistence.append(m.id, oneTurnLog()) // seqs 0..5
|
||||
await b1.dispose()
|
||||
// Hand-write an interrupted turn (turn/start seq 6, no turn/end).
|
||||
const db = openDatabase(path)
|
||||
db.prepare('INSERT INTO events (session_id, seq, type, time, data) VALUES (?, 6, ?, 7, ?)')
|
||||
.run(m.id, 'turn/start', JSON.stringify({ turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } }))
|
||||
db.close()
|
||||
|
||||
const b2 = await backend(path)
|
||||
const loaded = await b2.ctx.sessionPersistence.load(m.id)
|
||||
// turn 2's real turn/start (seq 6) is preserved + a synthetic turn/end (seq 7).
|
||||
expect(loaded.events.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7])
|
||||
expect(loaded.events.at(-1)!.type).toBe('turn/end')
|
||||
// load() is mutating: the synthetic turn/end MUST be on disk so the stored log
|
||||
// is balanced and the cursor is truthful (contract: load closes, not defers).
|
||||
const probe = openDatabase(path)
|
||||
const stored = probe.prepare('SELECT seq, type FROM events WHERE session_id = ? ORDER BY seq').all(m.id) as { seq: number; type: string }[]
|
||||
probe.close()
|
||||
expect(stored.map(r => r.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7])
|
||||
expect(stored.at(-1)!.type).toBe('turn/end')
|
||||
await b2.dispose()
|
||||
})
|
||||
|
||||
it('all-tail load: a session whose only turn never closed is preserved and closed on load', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('all-tail')
|
||||
const b1 = await backend(path)
|
||||
await b1.ctx.sessionPersistence.create(m)
|
||||
// A first turn that NEVER completed: turn/start + user/message, no turn/end.
|
||||
await b1.ctx.sessionPersistence.append(m.id, [
|
||||
{ type: 'turn/start', seq: 0, time: 1, data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'user/message', seq: 1, time: 2, data: { content: [{ type: 'text', text: 'hi' }], source: { kind: 'user' } } },
|
||||
])
|
||||
expect(await b1.ctx.sessionPersistence.has(m.id)).toBe(true) // materialized
|
||||
await b1.dispose()
|
||||
|
||||
// A fresh backend loads it: the interrupted (only) turn's real events are
|
||||
// preserved and closed with a synthetic turn/end {interrupted} — NOT
|
||||
// truncated. The session was materialized, so has()/list() report it present.
|
||||
const b2 = await backend(path)
|
||||
const loaded = await b2.ctx.sessionPersistence.load(m.id)
|
||||
expect(loaded.events.map(e => e.type)).toEqual(['turn/start', 'user/message', 'turn/end'])
|
||||
expect(loaded.events.at(-1)!.type === 'turn/end' && loaded.events.at(-1)!.data).toMatchObject({ reason: { kind: 'interrupted' } })
|
||||
expect(await b2.ctx.sessionPersistence.has(m.id)).toBe(true)
|
||||
expect((await b2.ctx.sessionPersistence.list()).map(x => x.id)).toContain(m.id)
|
||||
await b2.dispose()
|
||||
})
|
||||
|
||||
it('rejects opening a database whose schema version is not the current build (newer OR older)', async () => {
|
||||
const path = await freshDbPath()
|
||||
openDatabase(path).close() // stamp user_version = SCHEMA_VERSION
|
||||
// Bump user_version past what this build supports.
|
||||
const dbNewer = openDatabase(path)
|
||||
dbNewer.exec(`PRAGMA user_version = ${SCHEMA_VERSION + 1}`)
|
||||
dbNewer.close()
|
||||
expect(() => openDatabase(path)).toThrow(/incompatible with this build/)
|
||||
|
||||
// A stale OLDER version (e.g. a pre-summary-drop v1 DB) is also rejected —
|
||||
// we do not migrate (unreleased software, no backward-compat).
|
||||
const olderPath = await freshDbPath()
|
||||
openDatabase(olderPath).close()
|
||||
const dbOlder = openDatabase(olderPath)
|
||||
dbOlder.exec('PRAGMA user_version = 1')
|
||||
dbOlder.close()
|
||||
expect(() => openDatabase(olderPath)).toThrow(/incompatible with this build/)
|
||||
})
|
||||
|
||||
it('a corrupt-JSON row in the uncommitted tail is discarded on load, not unloadable', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('corrupt-tail')
|
||||
const b1 = await backend(path)
|
||||
await b1.ctx.sessionPersistence.create(m)
|
||||
await b1.ctx.sessionPersistence.append(m.id, oneTurnLog()) // committed: seqs 0..5
|
||||
await b1.dispose()
|
||||
|
||||
// Hand-insert a torn tail row (seq 6, no closing turn/end) whose `data` is
|
||||
// invalid JSON. The contract: only a parse error in the COMMITTED region is
|
||||
// unloadable; a torn tail must be discarded. scanRows finds the last
|
||||
// turn/end on the seq+type columns (never parsing tail `data`), so the
|
||||
// unparsable row after it bounds the preserved prefix and is deleted by load.
|
||||
const db = openDatabase(path)
|
||||
db.prepare('INSERT INTO events (session_id, seq, type, time, data) VALUES (?, 6, ?, 7, ?)')
|
||||
.run(m.id, 'turn/start', '{not valid json')
|
||||
db.close()
|
||||
|
||||
const b2 = await backend(path)
|
||||
const loaded = await b2.ctx.sessionPersistence.load(m.id)
|
||||
expect(loaded.events).toEqual(oneTurnLog()) // torn tail discarded, committed intact (turn 1 already balanced → no closers)
|
||||
// load physically deleted the corrupt tail row, so a fresh append continues.
|
||||
await b2.ctx.sessionPersistence.append(m.id, [
|
||||
{ type: 'turn/start', seq: 6, time: 8, data: { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'turn/end', seq: 7, time: 9, data: { turn: 2, reason: { kind: 'completed' } } },
|
||||
])
|
||||
const reloaded = await b2.ctx.sessionPersistence.load(m.id)
|
||||
expect(reloaded.events.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7])
|
||||
await b2.dispose()
|
||||
})
|
||||
|
||||
it('append rolls back the whole batch on a mid-batch seq collision (transaction)', async () => {
|
||||
const ctx = new Context()
|
||||
await ctx.plugin(SessionStore)
|
||||
const fiber = await ctx.plugin(SessionPersistenceSqlite, { path: ':memory:' })
|
||||
const m = meta('rollback')
|
||||
await ctx.sessionPersistence.create(m)
|
||||
await ctx.sessionPersistence.append(m.id, oneTurnLog()) // seqs 0..5
|
||||
|
||||
// A batch that re-states an already-stored seq must be rejected and leave
|
||||
// the stored log unchanged (the UNIQUE (session_id, seq) constraint fires
|
||||
// inside the transaction → ROLLBACK).
|
||||
await expect(ctx.sessionPersistence.append(m.id, oneTurnLog())).rejects.toThrow()
|
||||
const loaded = await ctx.sessionPersistence.load(m.id)
|
||||
expect(loaded.events).toEqual(oneTurnLog()) // unchanged
|
||||
await fiber.dispose()
|
||||
})
|
||||
|
||||
it('persists across separate backend instances over the same file', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('persist', '/proj')
|
||||
const ctx1 = new Context()
|
||||
await ctx1.plugin(SessionStore)
|
||||
const fiber1 = await ctx1.plugin(SessionPersistenceSqlite, { path })
|
||||
await ctx1.sessionPersistence.create(m)
|
||||
await ctx1.sessionPersistence.append(m.id, oneTurnLog())
|
||||
await fiber1.dispose()
|
||||
|
||||
const ctx2 = new Context()
|
||||
await ctx2.plugin(SessionStore)
|
||||
const fiber2 = await ctx2.plugin(SessionPersistenceSqlite, { path })
|
||||
expect((await ctx2.sessionPersistence.list()).map(x => x.id)).toContain(m.id)
|
||||
const loaded = await ctx2.sessionPersistence.load(m.id)
|
||||
expect(loaded.meta).toMatchObject({ id: m.id, cwd: '/proj' })
|
||||
expect(loaded.events).toEqual(oneTurnLog())
|
||||
await fiber2.dispose()
|
||||
})
|
||||
|
||||
it('exposes the schema version constant', () => {
|
||||
expect(SCHEMA_VERSION).toBe(2)
|
||||
})
|
||||
})
|
||||
|
||||
describe('SessionPersistenceSqlite: edge cases', () => {
|
||||
it('append rolls back and rethrows when an event INSERT fails inside the transaction', async () => {
|
||||
const path = await freshDbPath()
|
||||
const m = meta('rollback-insert')
|
||||
const b1 = await backend(path)
|
||||
await b1.ctx.sessionPersistence.create(m)
|
||||
await b1.ctx.sessionPersistence.append(m.id, oneTurnLog())
|
||||
|
||||
// A SECOND backend over the same file loads the session first, so it adopts
|
||||
// cursor 6 (the committed length) into its OWN in-memory state.
|
||||
const b2 = await backend(path)
|
||||
await b2.ctx.sessionPersistence.load(m.id) // cursor 6 in b2
|
||||
const turn2: SessionEvent[] = [
|
||||
{ type: 'turn/start', seq: 6, time: 7, data: { turn: 2, trigger: { kind: 'message', source: { kind: 'user' } } } },
|
||||
{ type: 'turn/end', seq: 7, time: 8, data: { turn: 2, reason: { kind: 'completed' } } },
|
||||
]
|
||||
// b1 commits seq 6..7 first.
|
||||
await b1.ctx.sessionPersistence.append(m.id, turn2)
|
||||
// b2 still thinks its cursor is 6, so this batch passes the contiguity check
|
||||
// but its INSERT of seq 6 hits the UNIQUE (session_id, seq) constraint
|
||||
// mid-transaction → ROLLBACK + rethrow.
|
||||
await expect(b2.ctx.sessionPersistence.append(m.id, turn2)).rejects.toThrow(/UNIQUE/)
|
||||
// b1's turn is intact; b2's rolled-back attempt left nothing extra.
|
||||
const loaded = await b1.ctx.sessionPersistence.load(m.id)
|
||||
expect(loaded.events.map(e => e.seq)).toEqual([0, 1, 2, 3, 4, 5, 6, 7])
|
||||
await b1.dispose()
|
||||
await b2.dispose()
|
||||
})
|
||||
|
||||
it('HMR: a DIFFERENT session colliding with a materialized on-disk id is rejected', async () => {
|
||||
const path = await freshDbPath()
|
||||
// Instance 1 materializes a session and disposes.
|
||||
const b1 = await backend(path)
|
||||
const s1 = b1.ctx.sessions.create('hmr-collide')
|
||||
for (const e of oneTurnLog()) s1.append(e.type, e.data)
|
||||
await b1.ctx.parallel('session/flush', s1)
|
||||
await b1.dispose()
|
||||
|
||||
// A fresh context with an UNRELATED live session reusing the id meets a
|
||||
// materialized row that is NOT a prefix of its events → reject.
|
||||
const ctx = new Context()
|
||||
await ctx.plugin(SessionStore)
|
||||
let session!: Session
|
||||
await ctx.plugin(Object.assign((inner: Context) => {
|
||||
session = inner.sessions.create('hmr-collide')
|
||||
}, { inject: ['sessions'] }))
|
||||
session.append('turn/start', { turn: 9, trigger: { kind: 'message', source: { kind: 'user' } } })
|
||||
await ctx.plugin(SessionPersistenceSqlite, { path })
|
||||
await expect(ctx.parallel('session/flush', session)).rejects.toThrow(/id collision/)
|
||||
await ctx.fiber.dispose()
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,27 @@
|
||||
{
|
||||
"extends": "../../../tsconfig.base.json",
|
||||
"compilerOptions": {
|
||||
"rootDir": "src",
|
||||
"outDir": "lib"
|
||||
},
|
||||
"include": [
|
||||
"src"
|
||||
],
|
||||
"references": [
|
||||
{
|
||||
"path": "../../../vendor/cosmokit"
|
||||
},
|
||||
{
|
||||
"path": "../../../vendor/cordis"
|
||||
},
|
||||
{
|
||||
"path": "../../../vendor/schemastery"
|
||||
},
|
||||
{
|
||||
"path": "../../core/session"
|
||||
},
|
||||
{
|
||||
"path": "../../session-persistence/session-persistence"
|
||||
}
|
||||
]
|
||||
}
|
||||
Reference in New Issue
Block a user