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opencode v2 mirror
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TypeScript
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889import { Context, Duration, Effect, Exit, Layer, LayerMap, MutableHashMap, Option } from "effect"import { LayerNode } from "@opencode/util/effect/layer-node"import { Instance } from "./instance.js"import { Location } from "./location.js"import { LocationLifecycle } from "./location-lifecycle.js"import { LocationServiceMap } from "./location-service-map.js"
export { LocationServiceMap } from "./location-service-map.js"
export type LocationServices = Instance.Servicesexport type LocationError = Instance.Error
export function buildLocationServiceMap( replacements: LayerNode.Replacements = [],): Layer.Layer<LocationServiceMap.Service> { return Layer.effect( LocationServiceMap.Service, Effect.gen(function* () { const owner = yield* Effect.scope const builds = MutableHashMap.empty<Location.Ref, { close?: Effect.Effect<void> }>() const inner: LayerMap.LayerMap<Location.Ref, LocationServices> = yield* LayerMap.make( (ref: Location.Ref) => { const build: { close?: Effect.Effect<void> } = {} MutableHashMap.set(builds, ref, build) return Layer.fromBuild((memoMap, scope) => Effect.suspend(() => Layer.buildWithMemoMap(Instance.layer(ref, { replacements: bindings }), memoMap, scope), ).pipe( Effect.onExit((exit) => { const finish = Effect.suspend(() => { if (Exit.isSuccess(exit)) { return Effect.gen(function* () { const lifecycle = Context.get(exit.value, LocationLifecycle.Service) // A boot detached while in flight still needs shutdown and cancellation. if (Option.getOrUndefined(MutableHashMap.get(builds, ref)) !== build) return yield* lifecycle.shutdown build.close = lifecycle.shutdown }) } // An explicitly invalidated build must not evict its replacement. if (Option.getOrUndefined(MutableHashMap.get(builds, ref)) !== build) return Effect.void MutableHashMap.remove(builds, ref) // Evict once per failed build, before its result reaches borrowers. return Exit.isFailure(exit) ? inner.invalidate(ref) : Effect.void }) // With no borrowers, invalidation closes the entry's scope and // joins this lookup fiber. Let the owner finish that cleanup. return Exit.isFailure(exit) ? finish.pipe(Effect.forkIn(owner, { startImmediately: true }), Effect.asVoid) : finish }), ), ) }, // Retain healthy graphs. Boot failures, not local filesystem probes, // decide whether a location (including workspace placement) can retry. { idleTimeToLive: Duration.infinity }, ) const map = { ...inner, get: (ref: Location.Ref) => inner.get(LocationServiceMap.canonical(ref)), contextEffect: (ref: Location.Ref) => inner.contextEffect(LocationServiceMap.canonical(ref)), contextEffectOption: (ref: Location.Ref) => inner.contextEffectOption(LocationServiceMap.canonical(ref)), invalidate: (ref: Location.Ref) => Effect.suspend(() => { const key = LocationServiceMap.canonical(ref) const build = Option.getOrUndefined(MutableHashMap.get(builds, key)) MutableHashMap.remove(builds, key) // Detach routing first, then cancel interactions and notify clients. Running // steps retain their borrowed graph until they can hand off at a boundary. // Do not await a boot here: failed/in-flight builds have their own cleanup path. return inner.invalidate(key).pipe(Effect.andThen(build?.close ?? Effect.void)) }).pipe(Effect.uninterruptible), } // Cached instances borrow their owner instead of retaining its Layer scope. const bindings: LayerNode.Replacements = [ Instance.node.replace( Layer.succeed(Instance.Service, { provide: (session) => Effect.provide(map.get(session.location)), }), ), ...replacements, LocationServiceMap.node.replace(Layer.succeed(LocationServiceMap.Service, map)), ] return map }), )}