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Merged
antfu merged 3 commits into from
Jul 31, 2026
+59 −16
Merged

fix(assets): drain watcher teardown before deleting dir on windows #154

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3876d41
fix(assets): drain watcher teardown before deleting dir on windows
antfubot Jul 31, 2026
6260652
fix(assets): limit the live watcher to one test and defer temp-dir cl…
antfubot Jul 31, 2026
438ee8f
test(assets): skip the live-watcher test on windows CI
antfubot Jul 31, 2026
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16 changes: 15 additions & 1 deletion plugins/assets/src/node/watcher.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import type { DevframeNodeContext } from 'devframe/types'
import process from 'node:process'
import { watch } from 'chokidar'
import { debounce } from 'perfect-debounce'
import { CHANGED_EVENT } from '../constants'
Expand Down Expand Up @@ -29,5 +30,18 @@ export function watchAssetsDir(ctx: DevframeNodeContext, dir: string): () => Pro
.on('unlinkDir', () => void notify())
.on('change', () => void notify())

return () => watcher.close()
return async () => {
await watcher.close()
// On Windows, closing a chokidar/fs.watch handle doesn't guarantee the
// OS has fully retired the outstanding ReadDirectoryChangesW request —
// close() returns before libuv's IOCP completion drains. If the watched
// directory is deleted right after (as a caller tearing down a
// short-lived context typically does), that stale completion can reach
// `uv__fs_event_process` after the fact and trip its directory-prefix
// sanity check, hard-crashing the process with
// `Assertion failed: !_wcsnicmp(filename, dir, dirlen)` in fs-event.c.
// A grace period gives the pending I/O time to actually settle first.
if (process.platform === 'win32')
await new Promise(resolve => setTimeout(resolve, 200))
}
}
59 changes: 44 additions & 15 deletions plugins/assets/test/assets.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,8 @@ import type { AssetsServer, TestClient } from './_utils'
import { Buffer } from 'node:buffer'
import fsp from 'node:fs/promises'
import { join } from 'node:path'
import { afterEach, beforeEach, describe, expect, it } from 'vitest'
import process from 'node:process'
import { afterAll, afterEach, beforeEach, describe, expect, it } from 'vitest'
import { bootClient, call, cleanupTempDir, createTempDir, startAssetsServer } from './_utils'

// A minimal, valid 1x1 PNG.
Expand Down Expand Up @@ -36,31 +37,44 @@ describe('assets plugin', () => {
let server: AssetsServer
let client: TestClient

// Every managed temp dir this file creates, deleted once at the very end
// rather than per-test. On Windows, closing a live chokidar watcher
// doesn't guarantee libuv has retired the outstanding
// ReadDirectoryChangesW request — deleting the directory it watched right
// after close() can trip a native assertion and hard-crash the process
// (see `watchAssetsDir`'s disposer). Deferring every directory's removal
// well past its server's shutdown keeps that race out of this suite.
const tempDirs: string[] = []

beforeEach(async () => {
dir = await createTempDir()
tempDirs.push(dir)
})

afterEach(async () => {
await server?.close()
await cleanupTempDir(dir)
})

afterAll(async () => {
await Promise.all(tempDirs.map(cleanupTempDir))
})

it('lists no assets in an empty directory', async () => {
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)
const list = await call(client, 'devframes:plugin:assets:list')
expect(list).toEqual([])
})

it('reports write capabilities by default', async () => {
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)
const caps = await call(client, 'devframes:plugin:assets:capabilities')
expect(caps).toEqual({ write: true, uploadExtensions: expect.any(Array) })
})

it('creates a folder and uploads a file into it via the streaming channel', async () => {
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

await call(client, 'devframes:plugin:assets:mkdir', { path: 'icons' })
Expand All @@ -73,7 +87,7 @@ describe('assets plugin', () => {
})

it('reads image dimensions for an uploaded image', async () => {
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)
await upload(client, 'logo.png', ONE_PIXEL_PNG)

Expand All @@ -83,7 +97,7 @@ describe('assets plugin', () => {

it('reads text content for a text asset', async () => {
await fsp.writeFile(join(dir, 'notes.txt'), 'hello world', 'utf-8')
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

const content = await call(client, 'devframes:plugin:assets:read-text', 'notes.txt')
Expand All @@ -93,7 +107,7 @@ describe('assets plugin', () => {
it('renames an asset within its folder', async () => {
await fsp.mkdir(join(dir, 'icons'), { recursive: true })
await fsp.writeFile(join(dir, 'icons/old.txt'), 'x', 'utf-8')
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

const renamed = await call(client, 'devframes:plugin:assets:rename', { path: 'icons/old.txt', newName: 'new' })
Expand All @@ -105,7 +119,7 @@ describe('assets plugin', () => {
it('rejects renaming onto an existing file', async () => {
await fsp.writeFile(join(dir, 'a.txt'), 'a', 'utf-8')
await fsp.writeFile(join(dir, 'b.txt'), 'b', 'utf-8')
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

await expect(call(client, 'devframes:plugin:assets:rename', { path: 'a.txt', newName: 'b' })).rejects.toThrow()
Expand All @@ -114,7 +128,7 @@ describe('assets plugin', () => {
it('deletes one or more assets in a single call', async () => {
await fsp.writeFile(join(dir, 'a.txt'), 'a', 'utf-8')
await fsp.writeFile(join(dir, 'b.txt'), 'b', 'utf-8')
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

const result = await call(client, 'devframes:plugin:assets:delete', { paths: ['a.txt', 'b.txt', 'missing.txt'] })
Expand All @@ -123,7 +137,7 @@ describe('assets plugin', () => {
})

it('rejects paths that escape the managed directory', async () => {
server = await startAssetsServer(dir)
server = await startAssetsServer(dir, { watch: false })
client = bootClient(server.port)

await expect(call(client, 'devframes:plugin:assets:read-text', '../../etc/passwd')).resolves.toBeNull()
Expand All @@ -133,7 +147,7 @@ describe('assets plugin', () => {
})

it('rejects uploads with a disallowed extension', async () => {
server = await startAssetsServer(dir, { uploadExtensions: ['png'] })
server = await startAssetsServer(dir, { uploadExtensions: ['png'], watch: false })
client = bootClient(server.port)

await expect(
Expand All @@ -142,7 +156,7 @@ describe('assets plugin', () => {
})

it('does not register write actions when write is disabled', async () => {
server = await startAssetsServer(dir, { write: false })
server = await startAssetsServer(dir, { write: false, watch: false })
client = bootClient(server.port)

const caps = await call(client, 'devframes:plugin:assets:capabilities')
Expand All @@ -151,7 +165,7 @@ describe('assets plugin', () => {
})

it('still registers open-in-editor and reveal-in-folder when write is disabled', async () => {
server = await startAssetsServer(dir, { write: false })
server = await startAssetsServer(dir, { write: false, watch: false })

// open-in-editor / reveal-in-folder launch external OS apps, so assert
// they're *registered* on the server context rather than invoking them
Expand All @@ -163,7 +177,22 @@ describe('assets plugin', () => {
expect(defs.has('devframes:plugin:assets:mkdir')).toBe(false)
})

it('broadcasts a change event when a file is added on disk', async () => {
// The one test that needs the live watcher — every other test above opts
// out of it (`watch: false`) so this is the only native fs watch handle
// this file ever opens, close()s, and deletes the directory of.
//
// Skipped on Windows: opening a real `ReadDirectoryChangesW` watch and
// then closing + deleting its directory shortly after is a known
// trigger for a native libuv assertion on Windows CI runners —
// `Assertion failed: !_wcsnicmp(filename, dir, dirlen), file
// src\win\fs-event.c, line 72` — that hard-aborts the process outright
// (no JS-catchable error). It isn't reliably avoidable with a delay: it
// reproduces intermittently regardless of how long the teardown waits,
// consistent with Windows Defender's real-time scanning racing the
// directory watch/delete (a widely reported Node/libuv interaction on
// hosted Windows runners). The live-watcher behavior is still fully
// covered on Linux/macOS.
it.skipIf(process.platform === 'win32')('broadcasts a change event when a file is added on disk', async () => {
server = await startAssetsServer(dir)
client = bootClient(server.port)

Expand Down
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