File size: 5,352 Bytes
3e05655 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | export * as Watcher from "./watcher"
// @ts-ignore
import { createWrapper } from "@parcel/watcher/wrapper"
import type ParcelWatcher from "@parcel/watcher"
import { makeLocationNode } from "../effect/app-node"
import { Cause, Context, Effect, Layer } from "effect"
import { FileSystemWatcher } from "@opencode-ai/schema/filesystem-watcher"
import path from "path"
import { Config } from "../config"
import { EventV2 } from "../event"
import { Flag } from "../flag/flag"
import { FSUtil } from "../fs-util"
import { Git } from "../git"
import { Location } from "../location"
import { lazy } from "../util/lazy"
import { Ignore } from "./ignore"
import { Protected } from "./protected"
declare const OPENCODE_LIBC: string | undefined
const SUBSCRIBE_TIMEOUT_MS = 10_000
export const Event = FileSystemWatcher.Event
const watcher = lazy((): typeof import("@parcel/watcher") | undefined => {
try {
const libc = typeof OPENCODE_LIBC === "undefined" ? undefined : OPENCODE_LIBC
const binding = require(
`@parcel/watcher-${process.platform}-${process.arch}${process.platform === "linux" ? `-${libc || "glibc"}` : ""}`,
)
return createWrapper(binding) as typeof import("@parcel/watcher")
} catch {
return
}
})
function getBackend() {
if (process.platform === "win32") return "windows"
if (process.platform === "darwin") return "fs-events"
if (process.platform === "linux") return "inotify"
}
function protecteds(dir: string) {
return Protected.paths().filter((item) => {
const relative = path.relative(dir, item)
return relative !== "" && !relative.startsWith("..") && !path.isAbsolute(relative)
})
}
export const hasNativeBinding = () => !!watcher()
export interface Interface {}
export class Service extends Context.Service<Service, Interface>()("@opencode/v2/FileWatcher") {}
const layer = Layer.effect(
Service,
Effect.gen(function* () {
if (yield* Flag.OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER) return Service.of({})
const backend = getBackend()
const location = yield* Location.Service
if (!backend) {
yield* Effect.logError("watcher backend not supported", {
directory: location.directory,
platform: process.platform,
})
return Service.of({})
}
const w = watcher()
if (!w) return Service.of({})
yield* Effect.logInfo("watcher backend", { directory: location.directory, platform: process.platform, backend })
const events = yield* EventV2.Service
const fs = yield* FSUtil.Service
const git = yield* Git.Service
const context = yield* Effect.context()
const runFork = Effect.runForkWith(context)
const subscriptions: ParcelWatcher.AsyncSubscription[] = []
yield* Effect.addFinalizer(() =>
Effect.promise(() => Promise.allSettled(subscriptions.map((subscription) => subscription.unsubscribe()))),
)
const callback: ParcelWatcher.SubscribeCallback = (_error, updates) => {
for (const update of updates) {
if (update.type === "create") runFork(events.publish(Event.Updated, { file: update.path, event: "add" }))
if (update.type === "update") runFork(events.publish(Event.Updated, { file: update.path, event: "change" }))
if (update.type === "delete") runFork(events.publish(Event.Updated, { file: update.path, event: "unlink" }))
}
}
const subscribe = (directory: string, ignore: string[]) => {
const pending = w.subscribe(directory, callback, { ignore, backend })
return Effect.promise(() => pending).pipe(
Effect.tap((subscription) => Effect.sync(() => subscriptions.push(subscription))),
Effect.timeout(SUBSCRIBE_TIMEOUT_MS),
Effect.catchCause((cause) => {
pending.then((subscription) => subscription.unsubscribe()).catch(() => {})
return Effect.logError("failed to subscribe", { directory, cause: Cause.pretty(cause) })
}),
)
}
const config = (yield* (yield* Config.Service).entries())
.filter((entry): entry is Config.Document => entry.type === "document")
.flatMap((item) => item.info.watcher?.ignore ?? [])
if (location.vcs && (yield* Flag.OPENCODE_EXPERIMENTAL_FILEWATCHER)) {
yield* Effect.forkScoped(
subscribe(location.directory, [...Ignore.PATTERNS, ...config, ...protecteds(location.directory)]),
)
}
if (location.vcs?.type === "git") {
const resolved = (yield* git.repo.discover(location.directory))?.gitDirectory
const vcs = resolved ? yield* fs.realPath(resolved).pipe(Effect.catch(() => Effect.succeed(resolved))) : undefined
if (vcs && !config.includes(".git") && !config.includes(vcs) && (!resolved || !config.includes(resolved))) {
const ignore = (yield* fs.readDirectoryEntries(vcs).pipe(Effect.catch(() => Effect.succeed([])))).flatMap(
(entry) => (entry.name === "HEAD" ? [] : [entry.name]),
)
yield* Effect.forkScoped(subscribe(vcs, ignore))
}
}
return Service.of({})
}).pipe(
Effect.catchCause((cause) => {
return Effect.logError("failed to init watcher service", { cause: Cause.pretty(cause) }).pipe(
Effect.as(Service.of({})),
)
}),
),
)
export const node = makeLocationNode({
service: Service,
layer,
deps: [FSUtil.node, Location.node, Config.node, Git.node, EventV2.node],
})
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