feat(scout): materialize configured reference repos (#26692)

This commit is contained in:
Shoubhit Dash
2026-05-10 17:57:11 +05:30
committed by GitHub
parent 903d81819d
commit 5cf9abe743
19 changed files with 848 additions and 200 deletions

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import path from "path"
import { Effect, Context, Layer, Scope } from "effect"
import { AppFileSystem } from "@opencode-ai/core/filesystem"
import { Flag } from "@opencode-ai/core/flag/flag"
import { Global } from "@opencode-ai/core/global"
import { Config } from "@/config/config"
import { InstanceState } from "@/effect/instance-state"
import { Git } from "@/git"
import { parseRepositoryReference, repositoryCachePath, type Reference as RepositoryReference } from "@/util/repository"
import { RepositoryCache } from "./repository-cache"
type ReferenceEntry = NonNullable<Config.Info["reference"]>[string]
export type Resolved =
| {
name: string
kind: "local"
path: string
}
| {
name: string
kind: "git"
repository: string
reference: RepositoryReference
path: string
branch?: string
}
| {
name: string
kind: "invalid"
repository: string
message: string
}
type State = {
references: Resolved[]
materializeAll: Effect.Effect<void>
materializeByPath: { path: string; run: Effect.Effect<void> }[]
}
export interface Interface {
readonly init: () => Effect.Effect<void>
readonly list: () => Effect.Effect<Resolved[]>
readonly get: (name: string) => Effect.Effect<Resolved | undefined>
readonly ensure: (target?: string) => Effect.Effect<void>
readonly contains: (target?: string) => Effect.Effect<boolean>
}
export class Service extends Context.Service<Service, Interface>()("@opencode/Reference") {}
export function referencePath(input: { directory: string; worktree: string; value: string }) {
if (input.value.startsWith("~/")) return path.join(Global.Path.home, input.value.slice(2))
return path.isAbsolute(input.value)
? input.value
: path.resolve(input.worktree === "/" ? input.directory : input.worktree, input.value)
}
function resolveGit(
input: { name: string; repository: string } | { name: string; repository: string; branch: string | undefined },
): Resolved {
const parsed = parseRepositoryReference(input.repository)
if (!parsed || parsed.protocol === "file:") {
return {
name: input.name,
kind: "invalid",
repository: input.repository,
message: "Repository must be a git URL, host/path reference, or GitHub owner/repo shorthand",
}
}
return {
name: input.name,
kind: "git",
repository: input.repository,
reference: parsed,
path: repositoryCachePath(parsed),
...("branch" in input ? { branch: input.branch } : {}),
}
}
function branchLabel(branch: string | undefined) {
return branch ?? "default branch"
}
function normalizedTarget(target?: string) {
if (!target) return
return process.platform === "win32" ? AppFileSystem.normalizePath(target) : target
}
function containsReferencePath(referencePath: string, target: string) {
return AppFileSystem.contains(normalizedTarget(referencePath) ?? referencePath, target)
}
export function resolve(input: { name: string; reference: ReferenceEntry; directory: string; worktree: string }): Resolved {
if (typeof input.reference === "string") {
if (input.reference.startsWith(".") || input.reference.startsWith("/") || input.reference.startsWith("~")) {
return { name: input.name, kind: "local", path: referencePath({ ...input, value: input.reference }) }
}
return resolveGit({ name: input.name, repository: input.reference })
}
if ("path" in input.reference) {
return { name: input.name, kind: "local", path: referencePath({ ...input, value: input.reference.path }) }
}
return resolveGit({ name: input.name, repository: input.reference.repository, branch: input.reference.branch })
}
export function resolveAll(input: {
references: NonNullable<Config.Info["reference"]>
directory: string
worktree: string
}) {
const seen = new Map<string, { name: string; branch?: string }>()
return Object.entries(input.references).map(([name, reference]) => {
const resolved = resolve({ name, reference, directory: input.directory, worktree: input.worktree })
if (resolved.kind !== "git") return resolved
const existing = seen.get(resolved.path)
if (!existing) {
seen.set(resolved.path, { name, branch: resolved.branch })
return resolved
}
if (existing.branch === resolved.branch) return resolved
return {
name,
kind: "invalid" as const,
repository: resolved.repository,
message: `Reference conflicts with @${existing.name}: both use ${resolved.path}, but @${existing.name} requests ${branchLabel(existing.branch)} and @${name} requests ${branchLabel(resolved.branch)}`,
}
})
}
export const layer = Layer.effect(
Service,
Effect.gen(function* () {
const config = yield* Config.Service
const fs = yield* AppFileSystem.Service
const git = yield* Git.Service
const scope = yield* Scope.Scope
const state = yield* InstanceState.make<State>(
Effect.fn("Reference.state")(function* (ctx) {
const cfg = yield* config.get()
const references = resolveAll({ references: cfg.reference ?? {}, directory: ctx.directory, worktree: ctx.worktree })
const seenPath = new Set<string>()
const gitReferences = references.filter((reference): reference is Extract<Resolved, { kind: "git" }> => {
if (reference.kind !== "git") return false
if (seenPath.has(reference.path)) return false
seenPath.add(reference.path)
return true
})
const materializeByPath = yield* Effect.forEach(
gitReferences,
Effect.fnUntraced(function* (reference) {
const run = yield* Effect.cached(
RepositoryCache.ensure(
{ reference: reference.reference, branch: reference.branch, refresh: true },
{ fs, git },
).pipe(
Effect.asVoid,
Effect.catchCause((cause) =>
Effect.logWarning("failed to materialize reference repository", { name: reference.name, cause }),
),
),
)
return { path: reference.path, run }
}),
{ concurrency: "unbounded" },
)
const materializeAll = yield* Effect.cached(
Flag.OPENCODE_EXPERIMENTAL_SCOUT
? Effect.gen(function* () {
yield* Effect.forEach(
materializeByPath,
Effect.fnUntraced(function* (item) {
yield* item.run
}),
{ concurrency: 4, discard: true },
)
})
: Effect.void,
)
return { references, materializeAll, materializeByPath }
}),
)
return Service.of({
init: Effect.fn("Reference.init")(function* () {
if (!Flag.OPENCODE_EXPERIMENTAL_SCOUT) return
yield* InstanceState.useEffect(state, (s) => s.materializeAll).pipe(Effect.forkIn(scope), Effect.asVoid)
}),
list: Effect.fn("Reference.list")(function* () {
return yield* InstanceState.use(state, (s) => s.references)
}),
get: Effect.fn("Reference.get")(function* (name: string) {
return yield* InstanceState.use(state, (s) => s.references.find((reference) => reference.name === name))
}),
ensure: Effect.fn("Reference.ensure")(function* (target?: string) {
if (!Flag.OPENCODE_EXPERIMENTAL_SCOUT) return
const full = normalizedTarget(target)
if (!full) return yield* InstanceState.useEffect(state, (s) => s.materializeAll)
return yield* InstanceState.useEffect(
state,
(s) => s.materializeByPath.find((item) => containsReferencePath(item.path, full))?.run ?? Effect.void,
)
}),
contains: Effect.fn("Reference.contains")(function* (target?: string) {
if (!Flag.OPENCODE_EXPERIMENTAL_SCOUT) return false
const full = normalizedTarget(target)
if (!full) return false
return yield* InstanceState.use(state, (s) =>
s.references.some((reference) => reference.kind === "git" && containsReferencePath(reference.path, full)),
)
}),
})
}),
)
export const defaultLayer = layer.pipe(
Layer.provide(Config.defaultLayer),
Layer.provide(AppFileSystem.defaultLayer),
Layer.provide(Git.defaultLayer),
)
export * as Reference from "./reference"

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import path from "path"
import { Effect } from "effect"
import { AppFileSystem } from "@opencode-ai/core/filesystem"
import { Flock } from "@opencode-ai/core/util/flock"
import { Git } from "@/git"
import {
repositoryCachePath,
sameRepositoryReference,
parseRepositoryReference,
validateRepositoryBranch,
type Reference as RepositoryReference,
} from "@/util/repository"
export type Result = {
repository: string
host: string
remote: string
localPath: string
status: "cached" | "cloned" | "refreshed"
head?: string
branch?: string
}
function statusForRepository(input: { reuse: boolean; refresh?: boolean; branchMatches?: boolean }) {
if (!input.reuse) return "cloned" as const
if (input.branchMatches === false) return "refreshed" as const
if (input.refresh) return "refreshed" as const
return "cached" as const
}
function resetTarget(input: {
requestedBranch?: string
remoteHead: { code: number; stdout: string }
branch: { code: number; stdout: string }
}) {
if (input.requestedBranch) return `origin/${input.requestedBranch}`
if (input.remoteHead.code === 0 && input.remoteHead.stdout) {
return input.remoteHead.stdout.replace(/^refs\/remotes\//, "")
}
if (input.branch.code === 0 && input.branch.stdout) {
return `origin/${input.branch.stdout}`
}
return "HEAD"
}
export const ensure = Effect.fn("RepositoryCache.ensure")(function* (
input: {
reference: RepositoryReference
refresh?: boolean
branch?: string
},
services: {
fs: AppFileSystem.Interface
git: Git.Interface
},
) {
if (input.branch) validateRepositoryBranch(input.branch)
const repository = input.reference.label
const remote = input.reference.remote
const localPath = repositoryCachePath(input.reference)
const cloneTarget = parseRepositoryReference(remote) ?? input.reference
return yield* Effect.acquireUseRelease(
Effect.promise((signal) => Flock.acquire(`repo-clone:${localPath}`, { signal })),
() =>
Effect.gen(function* () {
yield* services.fs.ensureDir(path.dirname(localPath)).pipe(Effect.orDie)
const exists = yield* services.fs.existsSafe(localPath)
const hasGitDir = yield* services.fs.existsSafe(path.join(localPath, ".git"))
const origin = hasGitDir
? yield* services.git.run(["config", "--get", "remote.origin.url"], { cwd: localPath })
: undefined
const originReference = origin?.exitCode === 0 ? parseRepositoryReference(origin.text().trim()) : undefined
const reuse = hasGitDir && Boolean(originReference && sameRepositoryReference(originReference, cloneTarget))
if (exists && !reuse) {
yield* services.fs.remove(localPath, { recursive: true }).pipe(Effect.orDie)
}
const currentBranch = hasGitDir ? yield* services.git.branch(localPath) : undefined
const status = statusForRepository({
reuse,
refresh: input.refresh,
branchMatches: input.branch ? currentBranch === input.branch : undefined,
})
if (status === "cloned") {
const clone = yield* services.git.run(
[
"clone",
"--depth",
"100",
...(input.branch ? ["--branch", input.branch] : []),
"--",
remote,
localPath,
],
{ cwd: path.dirname(localPath) },
)
if (clone.exitCode !== 0) {
throw new Error(clone.stderr.toString().trim() || clone.text().trim() || `Failed to clone ${repository}`)
}
}
if (status === "refreshed") {
const fetch = yield* services.git.run(["fetch", "--all", "--prune"], { cwd: localPath })
if (fetch.exitCode !== 0) {
throw new Error(fetch.stderr.toString().trim() || fetch.text().trim() || `Failed to refresh ${repository}`)
}
if (input.branch) {
const checkout = yield* services.git.run(["checkout", "-B", input.branch, `origin/${input.branch}`], {
cwd: localPath,
})
if (checkout.exitCode !== 0) {
throw new Error(
checkout.stderr.toString().trim() || checkout.text().trim() || `Failed to checkout ${input.branch}`,
)
}
}
const remoteHead = yield* services.git.run(["symbolic-ref", "refs/remotes/origin/HEAD"], { cwd: localPath })
const branch = yield* services.git.run(["symbolic-ref", "--quiet", "--short", "HEAD"], { cwd: localPath })
const target = resetTarget({
requestedBranch: input.branch,
remoteHead: { code: remoteHead.exitCode, stdout: remoteHead.text().trim() },
branch: { code: branch.exitCode, stdout: branch.text().trim() },
})
const reset = yield* services.git.run(["reset", "--hard", target], { cwd: localPath })
if (reset.exitCode !== 0) {
throw new Error(reset.stderr.toString().trim() || reset.text().trim() || `Failed to reset ${repository}`)
}
}
const head = yield* services.git.run(["rev-parse", "HEAD"], { cwd: localPath })
const branch = yield* services.git.branch(localPath)
const headText = head.exitCode === 0 ? head.text().trim() : undefined
return {
repository,
host: input.reference.host,
remote,
localPath,
status,
head: headText,
branch,
} satisfies Result
}),
(lock) => Effect.promise(() => lock.release()).pipe(Effect.ignore),
)
})
export * as RepositoryCache from "./repository-cache"