mirror of
https://github.com/anomalyco/opencode.git
synced 2026-05-23 04:26:05 +00:00
518 lines
19 KiB
TypeScript
518 lines
19 KiB
TypeScript
import { Cause, Effect, Layer, ServiceMap } from "effect"
|
|
import * as Stream from "effect/Stream"
|
|
import { Agent } from "@/agent/agent"
|
|
import { Bus } from "@/bus"
|
|
import { Config } from "@/config/config"
|
|
import { Permission } from "@/permission"
|
|
import { Plugin } from "@/plugin"
|
|
import { Snapshot } from "@/snapshot"
|
|
import { Log } from "@/util/log"
|
|
import { Session } from "."
|
|
import { LLM } from "./llm"
|
|
import { MessageV2 } from "./message-v2"
|
|
import { isOverflow } from "./overflow"
|
|
import { PartID } from "./schema"
|
|
import type { SessionID } from "./schema"
|
|
import { SessionRetry } from "./retry"
|
|
import { SessionStatus } from "./status"
|
|
import { SessionSummary } from "./summary"
|
|
import type { Provider } from "@/provider/provider"
|
|
import { Question } from "@/question"
|
|
import { isRecord } from "@/util/record"
|
|
|
|
export namespace SessionProcessor {
|
|
const DOOM_LOOP_THRESHOLD = 3
|
|
const log = Log.create({ service: "session.processor" })
|
|
|
|
export type Result = "compact" | "stop" | "continue"
|
|
|
|
export type Event = LLM.Event
|
|
|
|
export interface Handle {
|
|
readonly message: MessageV2.Assistant
|
|
readonly partFromToolCall: (toolCallID: string) => MessageV2.ToolPart | undefined
|
|
readonly process: (streamInput: LLM.StreamInput) => Effect.Effect<Result>
|
|
}
|
|
|
|
type Input = {
|
|
assistantMessage: MessageV2.Assistant
|
|
sessionID: SessionID
|
|
model: Provider.Model
|
|
}
|
|
|
|
export interface Interface {
|
|
readonly create: (input: Input) => Effect.Effect<Handle>
|
|
}
|
|
|
|
interface ProcessorContext extends Input {
|
|
toolcalls: Record<string, MessageV2.ToolPart>
|
|
shouldBreak: boolean
|
|
snapshot: string | undefined
|
|
blocked: boolean
|
|
needsCompaction: boolean
|
|
currentText: MessageV2.TextPart | undefined
|
|
reasoningMap: Record<string, MessageV2.ReasoningPart>
|
|
}
|
|
|
|
type StreamEvent = Event
|
|
|
|
export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/SessionProcessor") {}
|
|
|
|
export const layer: Layer.Layer<
|
|
Service,
|
|
never,
|
|
| Session.Service
|
|
| Config.Service
|
|
| Bus.Service
|
|
| Snapshot.Service
|
|
| Agent.Service
|
|
| LLM.Service
|
|
| Permission.Service
|
|
| Plugin.Service
|
|
| SessionStatus.Service
|
|
> = Layer.effect(
|
|
Service,
|
|
Effect.gen(function* () {
|
|
const session = yield* Session.Service
|
|
const config = yield* Config.Service
|
|
const bus = yield* Bus.Service
|
|
const snapshot = yield* Snapshot.Service
|
|
const agents = yield* Agent.Service
|
|
const llm = yield* LLM.Service
|
|
const permission = yield* Permission.Service
|
|
const plugin = yield* Plugin.Service
|
|
const status = yield* SessionStatus.Service
|
|
|
|
const create = Effect.fn("SessionProcessor.create")(function* (input: Input) {
|
|
// Pre-capture snapshot before the LLM stream starts. The AI SDK
|
|
// may execute tools internally before emitting start-step events,
|
|
// so capturing inside the event handler can be too late.
|
|
const initialSnapshot = yield* snapshot.track()
|
|
const ctx: ProcessorContext = {
|
|
assistantMessage: input.assistantMessage,
|
|
sessionID: input.sessionID,
|
|
model: input.model,
|
|
toolcalls: {},
|
|
shouldBreak: false,
|
|
snapshot: initialSnapshot,
|
|
blocked: false,
|
|
needsCompaction: false,
|
|
currentText: undefined,
|
|
reasoningMap: {},
|
|
}
|
|
let aborted = false
|
|
|
|
const parse = (e: unknown) =>
|
|
MessageV2.fromError(e, {
|
|
providerID: input.model.providerID,
|
|
aborted,
|
|
})
|
|
|
|
const handleEvent = Effect.fn("SessionProcessor.handleEvent")(function* (value: StreamEvent) {
|
|
switch (value.type) {
|
|
case "start":
|
|
yield* status.set(ctx.sessionID, { type: "busy" })
|
|
return
|
|
|
|
case "reasoning-start":
|
|
if (value.id in ctx.reasoningMap) return
|
|
ctx.reasoningMap[value.id] = {
|
|
id: PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
type: "reasoning",
|
|
text: "",
|
|
time: { start: Date.now() },
|
|
metadata: value.providerMetadata,
|
|
}
|
|
yield* session.updatePart(ctx.reasoningMap[value.id])
|
|
return
|
|
|
|
case "reasoning-delta":
|
|
if (!(value.id in ctx.reasoningMap)) return
|
|
ctx.reasoningMap[value.id].text += value.text
|
|
if (value.providerMetadata) ctx.reasoningMap[value.id].metadata = value.providerMetadata
|
|
yield* session.updatePartDelta({
|
|
sessionID: ctx.reasoningMap[value.id].sessionID,
|
|
messageID: ctx.reasoningMap[value.id].messageID,
|
|
partID: ctx.reasoningMap[value.id].id,
|
|
field: "text",
|
|
delta: value.text,
|
|
})
|
|
return
|
|
|
|
case "reasoning-end":
|
|
if (!(value.id in ctx.reasoningMap)) return
|
|
ctx.reasoningMap[value.id].text = ctx.reasoningMap[value.id].text.trimEnd()
|
|
ctx.reasoningMap[value.id].time = { ...ctx.reasoningMap[value.id].time, end: Date.now() }
|
|
if (value.providerMetadata) ctx.reasoningMap[value.id].metadata = value.providerMetadata
|
|
yield* session.updatePart(ctx.reasoningMap[value.id])
|
|
delete ctx.reasoningMap[value.id]
|
|
return
|
|
|
|
case "tool-input-start":
|
|
if (ctx.assistantMessage.summary) {
|
|
throw new Error(`Tool call not allowed while generating summary: ${value.toolName}`)
|
|
}
|
|
ctx.toolcalls[value.id] = yield* session.updatePart({
|
|
id: ctx.toolcalls[value.id]?.id ?? PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
type: "tool",
|
|
tool: value.toolName,
|
|
callID: value.id,
|
|
state: { status: "pending", input: {}, raw: "" },
|
|
metadata: value.providerExecuted ? { providerExecuted: true } : undefined,
|
|
} satisfies MessageV2.ToolPart)
|
|
return
|
|
|
|
case "tool-input-delta":
|
|
return
|
|
|
|
case "tool-input-end":
|
|
return
|
|
|
|
case "tool-call": {
|
|
if (ctx.assistantMessage.summary) {
|
|
throw new Error(`Tool call not allowed while generating summary: ${value.toolName}`)
|
|
}
|
|
const match = ctx.toolcalls[value.toolCallId]
|
|
if (!match) return
|
|
ctx.toolcalls[value.toolCallId] = yield* session.updatePart({
|
|
...match,
|
|
tool: value.toolName,
|
|
state: { status: "running", input: value.input, time: { start: Date.now() } },
|
|
metadata: match.metadata?.providerExecuted
|
|
? { ...value.providerMetadata, providerExecuted: true }
|
|
: value.providerMetadata,
|
|
} satisfies MessageV2.ToolPart)
|
|
|
|
const parts = MessageV2.parts(ctx.assistantMessage.id)
|
|
const recentParts = parts.slice(-DOOM_LOOP_THRESHOLD)
|
|
|
|
if (
|
|
recentParts.length !== DOOM_LOOP_THRESHOLD ||
|
|
!recentParts.every(
|
|
(part) =>
|
|
part.type === "tool" &&
|
|
part.tool === value.toolName &&
|
|
part.state.status !== "pending" &&
|
|
JSON.stringify(part.state.input) === JSON.stringify(value.input),
|
|
)
|
|
) {
|
|
return
|
|
}
|
|
|
|
const agent = yield* agents.get(ctx.assistantMessage.agent)
|
|
yield* permission.ask({
|
|
permission: "doom_loop",
|
|
patterns: [value.toolName],
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
metadata: { tool: value.toolName, input: value.input },
|
|
always: [value.toolName],
|
|
ruleset: agent.permission,
|
|
})
|
|
return
|
|
}
|
|
|
|
case "tool-result": {
|
|
const match = ctx.toolcalls[value.toolCallId]
|
|
if (!match || match.state.status !== "running") return
|
|
yield* session.updatePart({
|
|
...match,
|
|
state: {
|
|
status: "completed",
|
|
input: value.input ?? match.state.input,
|
|
output: value.output.output,
|
|
metadata: value.output.metadata,
|
|
title: value.output.title,
|
|
time: { start: match.state.time.start, end: Date.now() },
|
|
attachments: value.output.attachments,
|
|
},
|
|
})
|
|
delete ctx.toolcalls[value.toolCallId]
|
|
return
|
|
}
|
|
|
|
case "tool-error": {
|
|
const match = ctx.toolcalls[value.toolCallId]
|
|
if (!match || match.state.status !== "running") return
|
|
yield* session.updatePart({
|
|
...match,
|
|
state: {
|
|
status: "error",
|
|
input: value.input ?? match.state.input,
|
|
error: value.error instanceof Error ? value.error.message : String(value.error),
|
|
time: { start: match.state.time.start, end: Date.now() },
|
|
},
|
|
})
|
|
if (value.error instanceof Permission.RejectedError || value.error instanceof Question.RejectedError) {
|
|
ctx.blocked = ctx.shouldBreak
|
|
}
|
|
delete ctx.toolcalls[value.toolCallId]
|
|
return
|
|
}
|
|
|
|
case "error":
|
|
throw value.error
|
|
|
|
case "start-step":
|
|
if (!ctx.snapshot) ctx.snapshot = yield* snapshot.track()
|
|
yield* session.updatePart({
|
|
id: PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.sessionID,
|
|
snapshot: ctx.snapshot,
|
|
type: "step-start",
|
|
})
|
|
return
|
|
|
|
case "finish-step": {
|
|
const usage = Session.getUsage({
|
|
model: ctx.model,
|
|
usage: value.usage,
|
|
metadata: value.providerMetadata,
|
|
})
|
|
ctx.assistantMessage.finish = value.finishReason
|
|
ctx.assistantMessage.cost += usage.cost
|
|
ctx.assistantMessage.tokens = usage.tokens
|
|
yield* session.updatePart({
|
|
id: PartID.ascending(),
|
|
reason: value.finishReason,
|
|
snapshot: yield* snapshot.track(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
type: "step-finish",
|
|
tokens: usage.tokens,
|
|
cost: usage.cost,
|
|
})
|
|
yield* session.updateMessage(ctx.assistantMessage)
|
|
if (ctx.snapshot) {
|
|
const patch = yield* snapshot.patch(ctx.snapshot)
|
|
if (patch.files.length) {
|
|
yield* session.updatePart({
|
|
id: PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.sessionID,
|
|
type: "patch",
|
|
hash: patch.hash,
|
|
files: patch.files,
|
|
})
|
|
}
|
|
ctx.snapshot = undefined
|
|
}
|
|
SessionSummary.summarize({
|
|
sessionID: ctx.sessionID,
|
|
messageID: ctx.assistantMessage.parentID,
|
|
})
|
|
if (
|
|
!ctx.assistantMessage.summary &&
|
|
isOverflow({ cfg: yield* config.get(), tokens: usage.tokens, model: ctx.model })
|
|
) {
|
|
ctx.needsCompaction = true
|
|
}
|
|
return
|
|
}
|
|
|
|
case "text-start":
|
|
ctx.currentText = {
|
|
id: PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
type: "text",
|
|
text: "",
|
|
time: { start: Date.now() },
|
|
metadata: value.providerMetadata,
|
|
}
|
|
yield* session.updatePart(ctx.currentText)
|
|
return
|
|
|
|
case "text-delta":
|
|
if (!ctx.currentText) return
|
|
ctx.currentText.text += value.text
|
|
if (value.providerMetadata) ctx.currentText.metadata = value.providerMetadata
|
|
yield* session.updatePartDelta({
|
|
sessionID: ctx.currentText.sessionID,
|
|
messageID: ctx.currentText.messageID,
|
|
partID: ctx.currentText.id,
|
|
field: "text",
|
|
delta: value.text,
|
|
})
|
|
return
|
|
|
|
case "text-end":
|
|
if (!ctx.currentText) return
|
|
ctx.currentText.text = ctx.currentText.text.trimEnd()
|
|
ctx.currentText.text = (yield* plugin.trigger(
|
|
"experimental.text.complete",
|
|
{
|
|
sessionID: ctx.sessionID,
|
|
messageID: ctx.assistantMessage.id,
|
|
partID: ctx.currentText.id,
|
|
},
|
|
{ text: ctx.currentText.text },
|
|
)).text
|
|
ctx.currentText.time = { start: Date.now(), end: Date.now() }
|
|
if (value.providerMetadata) ctx.currentText.metadata = value.providerMetadata
|
|
yield* session.updatePart(ctx.currentText)
|
|
ctx.currentText = undefined
|
|
return
|
|
|
|
case "finish":
|
|
return
|
|
|
|
default:
|
|
log.info("unhandled", { ...value })
|
|
return
|
|
}
|
|
})
|
|
|
|
const cleanup = Effect.fn("SessionProcessor.cleanup")(function* () {
|
|
if (ctx.snapshot) {
|
|
const patch = yield* snapshot.patch(ctx.snapshot)
|
|
if (patch.files.length) {
|
|
yield* session.updatePart({
|
|
id: PartID.ascending(),
|
|
messageID: ctx.assistantMessage.id,
|
|
sessionID: ctx.sessionID,
|
|
type: "patch",
|
|
hash: patch.hash,
|
|
files: patch.files,
|
|
})
|
|
}
|
|
ctx.snapshot = undefined
|
|
}
|
|
|
|
if (ctx.currentText) {
|
|
const end = Date.now()
|
|
ctx.currentText.time = { start: ctx.currentText.time?.start ?? end, end }
|
|
yield* session.updatePart(ctx.currentText)
|
|
ctx.currentText = undefined
|
|
}
|
|
|
|
for (const part of Object.values(ctx.reasoningMap)) {
|
|
const end = Date.now()
|
|
yield* session.updatePart({
|
|
...part,
|
|
time: { start: part.time.start ?? end, end },
|
|
})
|
|
}
|
|
ctx.reasoningMap = {}
|
|
|
|
for (const part of Object.values(ctx.toolcalls)) {
|
|
const end = Date.now()
|
|
const metadata = "metadata" in part.state && isRecord(part.state.metadata) ? part.state.metadata : {}
|
|
yield* session.updatePart({
|
|
...part,
|
|
state: {
|
|
...part.state,
|
|
status: "error",
|
|
error: "Tool execution aborted",
|
|
metadata: { ...metadata, interrupted: true },
|
|
time: { start: "time" in part.state ? part.state.time.start : end, end },
|
|
},
|
|
})
|
|
}
|
|
ctx.toolcalls = {}
|
|
ctx.assistantMessage.time.completed = Date.now()
|
|
yield* session.updateMessage(ctx.assistantMessage)
|
|
})
|
|
|
|
const halt = Effect.fn("SessionProcessor.halt")(function* (e: unknown) {
|
|
log.error("process", { error: e, stack: e instanceof Error ? e.stack : undefined })
|
|
const error = parse(e)
|
|
if (MessageV2.ContextOverflowError.isInstance(error)) {
|
|
ctx.needsCompaction = true
|
|
yield* bus.publish(Session.Event.Error, { sessionID: ctx.sessionID, error })
|
|
return
|
|
}
|
|
ctx.assistantMessage.error = error
|
|
yield* bus.publish(Session.Event.Error, {
|
|
sessionID: ctx.assistantMessage.sessionID,
|
|
error: ctx.assistantMessage.error,
|
|
})
|
|
yield* status.set(ctx.sessionID, { type: "idle" })
|
|
})
|
|
|
|
const process = Effect.fn("SessionProcessor.process")(function* (streamInput: LLM.StreamInput) {
|
|
log.info("process")
|
|
ctx.needsCompaction = false
|
|
ctx.shouldBreak = (yield* config.get()).experimental?.continue_loop_on_deny !== true
|
|
|
|
return yield* Effect.gen(function* () {
|
|
yield* Effect.gen(function* () {
|
|
ctx.currentText = undefined
|
|
ctx.reasoningMap = {}
|
|
const stream = llm.stream(streamInput)
|
|
|
|
yield* stream.pipe(
|
|
Stream.tap((event) => handleEvent(event)),
|
|
Stream.takeUntil(() => ctx.needsCompaction),
|
|
Stream.runDrain,
|
|
)
|
|
}).pipe(
|
|
Effect.onInterrupt(() =>
|
|
Effect.gen(function* () {
|
|
aborted = true
|
|
if (!ctx.assistantMessage.error) {
|
|
yield* halt(new DOMException("Aborted", "AbortError"))
|
|
}
|
|
}),
|
|
),
|
|
Effect.catchCauseIf(
|
|
(cause) => !Cause.hasInterruptsOnly(cause),
|
|
(cause) => Effect.fail(Cause.squash(cause)),
|
|
),
|
|
Effect.retry(
|
|
SessionRetry.policy({
|
|
parse,
|
|
set: (info) =>
|
|
status.set(ctx.sessionID, {
|
|
type: "retry",
|
|
attempt: info.attempt,
|
|
message: info.message,
|
|
next: info.next,
|
|
}),
|
|
}),
|
|
),
|
|
Effect.catch(halt),
|
|
Effect.ensuring(cleanup()),
|
|
)
|
|
|
|
if (ctx.needsCompaction) return "compact"
|
|
if (ctx.blocked || ctx.assistantMessage.error) return "stop"
|
|
return "continue"
|
|
})
|
|
})
|
|
|
|
return {
|
|
get message() {
|
|
return ctx.assistantMessage
|
|
},
|
|
partFromToolCall(toolCallID: string) {
|
|
return ctx.toolcalls[toolCallID]
|
|
},
|
|
process,
|
|
} satisfies Handle
|
|
})
|
|
|
|
return Service.of({ create })
|
|
}),
|
|
)
|
|
|
|
export const defaultLayer = Layer.unwrap(
|
|
Effect.sync(() =>
|
|
layer.pipe(
|
|
Layer.provide(Session.defaultLayer),
|
|
Layer.provide(Snapshot.defaultLayer),
|
|
Layer.provide(Agent.defaultLayer),
|
|
Layer.provide(LLM.defaultLayer),
|
|
Layer.provide(Permission.defaultLayer),
|
|
Layer.provide(Plugin.defaultLayer),
|
|
Layer.provide(SessionStatus.layer.pipe(Layer.provide(Bus.layer))),
|
|
Layer.provide(Bus.layer),
|
|
Layer.provide(Config.defaultLayer),
|
|
),
|
|
),
|
|
)
|
|
}
|