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feat(core): add session snapshot and revert system (#33226)

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Dax 2026-06-24 19:41:16 -04:00 • committed by GitHub
commit 9bb5370205
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42 changed files with 2311 additions and 365 deletions
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41
packages/core/src/session/projector.ts
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@ -1,6 +1,6 @@
export * as SessionProjector from "./projector"
import { and, desc, eq, sql } from "drizzle-orm"
import { and, desc, eq, gt, or, sql } from "drizzle-orm"
import { DateTime, Effect, Layer, Schema } from "effect"
import { Database } from "../database/database"
import { EventV2 } from "../event"
@ -13,8 +13,9 @@ import { SessionMessageUpdater } from "./message-updater"
import { SessionInput } from "./input"
import { WorkspaceV2 } from "../workspace"
import { SessionContextEpoch } from "./context-epoch"
import { MessageTable, PartTable, SessionMessageTable, SessionTable } from "./sql"
import { MessageTable, PartTable, SessionInputTable, SessionMessageTable, SessionTable } from "./sql"
import type { DeepMutable } from "../schema"
import { SessionMessageID } from "./message-id"
type DatabaseService = Database.Interface["db"]
@ -66,7 +67,7 @@ function sessionRow(info: SessionV1.SessionInfo): typeof SessionTable.$inferInse
tokens_reasoning: (info.tokens ?? { reasoning: 0 }).reasoning,
tokens_cache_read: (info.tokens ?? { cache: { read: 0 } }).cache.read,
tokens_cache_write: (info.tokens ?? { cache: { write: 0 } }).cache.write,
revert: info.revert ?? null,
revert: info.revert ? { ...info.revert, messageID: SessionMessageID.ID.make(info.revert.messageID) } : null,
permission: info.permission ? [...info.permission] : undefined,
time_created: info.time.created,
time_updated: info.time.updated,
@ -393,6 +394,40 @@ export const layer = Layer.effectDiscard(
yield* events.project(SessionEvent.Reasoning.Ended, (event) => run(db, event))
// yield* events.project(SessionEvent.Retried, (event) => run(db, event))
yield* events.project(SessionEvent.Compaction.Ended, (event) => run(db, event))
yield* events.project(SessionEvent.RevertEvent.Staged, (event) =>
db
.update(SessionTable)
.set({
revert: { ...event.data.revert, files: event.data.revert.files ? [...event.data.revert.files] : undefined },
time_updated: DateTime.toEpochMillis(event.data.timestamp),
})
.where(eq(SessionTable.id, event.data.sessionID))
.run()
.pipe(Effect.orDie, Effect.asVoid),
)
yield* events.project(SessionEvent.RevertEvent.Cleared, (event) =>
db
.update(SessionTable)
.set({ revert: null, time_updated: DateTime.toEpochMillis(event.data.timestamp) })
.where(eq(SessionTable.id, event.data.sessionID))
.run()
.pipe(Effect.orDie, Effect.asVoid),
)
yield* events.project(SessionEvent.RevertEvent.Committed, (event) =>
Effect.gen(function* () {
const boundary = yield* db
.select({ seq: SessionMessageTable.seq })
.from(SessionMessageTable)
.where(and(eq(SessionMessageTable.session_id, event.data.sessionID), eq(SessionMessageTable.id, event.data.messageID)))
.get()
.pipe(Effect.orDie)
if (!boundary) return yield* Effect.die(`Revert boundary message not found: ${event.data.messageID}`)
yield* db.delete(SessionMessageTable).where(and(eq(SessionMessageTable.session_id, event.data.sessionID), gt(SessionMessageTable.seq, boundary.seq))).run().pipe(Effect.orDie)
yield* db.delete(SessionInputTable).where(and(eq(SessionInputTable.session_id, event.data.sessionID), or(gt(SessionInputTable.admitted_seq, boundary.seq), gt(SessionInputTable.promoted_seq, boundary.seq)))).run().pipe(Effect.orDie)
yield* db.update(SessionTable).set({ revert: null, time_updated: DateTime.toEpochMillis(event.data.timestamp) }).where(eq(SessionTable.id, event.data.sessionID)).run().pipe(Effect.orDie)
yield* SessionContextEpoch.reset(db, event.data.sessionID)
}),
)
}),
)