File size: 3,022 Bytes
1e92f2d |
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 |
import type { ServerResponse, IncomingMessage } from 'http'
import type { Telemetry } from '../../telemetry/storage'
import { RESTART_EXIT_CODE } from '../../server/lib/utils'
import { middlewareResponse } from './middleware-response'
import type { Project } from '../../build/swc/types'
import { invalidatePersistentCache as invalidateWebpackPersistentCache } from '../../build/webpack/cache-invalidation'
const EVENT_DEV_OVERLAY_RESTART_SERVER = 'DEV_OVERLAY_RESTART_SERVER'
interface RestartDevServerMiddlewareConfig {
telemetry: Telemetry
turbopackProject?: Project
webpackCacheDirectories?: Set<string>
}
export function getRestartDevServerMiddleware({
telemetry,
turbopackProject,
webpackCacheDirectories,
}: RestartDevServerMiddlewareConfig) {
/**
* Some random value between 1 and Number.MAX_SAFE_INTEGER (inclusive). The same value is returned
* on every call to `__nextjs_server_status` until the server is restarted.
*
* Can be used to determine if two server status responses are from the same process or a
* different (restarted) process.
*/
const executionId: number =
Math.floor(Math.random() * Number.MAX_SAFE_INTEGER) + 1
async function handleRestartRequest(
req: IncomingMessage,
res: ServerResponse,
searchParams: URLSearchParams
) {
if (req.method !== 'POST') {
return middlewareResponse.methodNotAllowed(res)
}
const shouldInvalidatePersistentCache = searchParams.has(
'invalidatePersistentCache'
)
if (shouldInvalidatePersistentCache) {
if (webpackCacheDirectories != null) {
await Promise.all(
Array.from(webpackCacheDirectories).map(
invalidateWebpackPersistentCache
)
)
}
if (turbopackProject != null) {
await turbopackProject.invalidatePersistentCache()
}
}
telemetry.record({
eventName: EVENT_DEV_OVERLAY_RESTART_SERVER,
payload: { invalidatePersistentCache: shouldInvalidatePersistentCache },
})
// TODO: Use flushDetached
await telemetry.flush()
// do this async to try to give the response a chance to send
// it's not really important if it doesn't though
setTimeout(() => {
process.exit(RESTART_EXIT_CODE)
}, 0)
return middlewareResponse.noContent(res)
}
async function handleServerStatus(req: IncomingMessage, res: ServerResponse) {
if (req.method !== 'GET') {
return middlewareResponse.methodNotAllowed(res)
}
return middlewareResponse.json(res, {
executionId,
})
}
return async function (
req: IncomingMessage,
res: ServerResponse,
next: () => void
): Promise<void> {
const { pathname, searchParams } = new URL(`http://n${req.url}`)
switch (pathname) {
case '/__nextjs_restart_dev':
return await handleRestartRequest(req, res, searchParams)
case '/__nextjs_server_status':
return await handleServerStatus(req, res)
default:
return next()
}
}
}
|