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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| import { EventEmitter } from 'events' | ||
| import type { HMRPayload, Plugin } from 'vite' | ||
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|
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| export type EventType = string | symbol | ||
| export type Handler<T = unknown> = (event: T) => void | ||
| export interface Emitter<Events extends Record<EventType, unknown>> { | ||
| on<Key extends keyof Events>(type: Key, handler: Handler<Events[Key]>): void | ||
| off<Key extends keyof Events>(type: Key, handler?: Handler<Events[Key]>): void | ||
| emit<Key extends keyof Events>(type: Key, event: Events[Key]): void | ||
| emit<Key extends keyof Events>(type: undefined extends Events[Key] ? Key : never): void | ||
| } | ||
|
|
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| export type HMREmitter = Emitter<{ | ||
| 'message': HMRPayload | ||
| }> & EventEmitter | ||
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|
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| declare module 'vite' { | ||
| interface ViteDevServer { | ||
| emitter: HMREmitter | ||
| } | ||
| } | ||
|
|
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| export function createHmrEmitter(): HMREmitter { | ||
| const emitter = new EventEmitter() | ||
| return emitter | ||
| } | ||
|
|
||
| export function viteNodeHmrPlugin(): Plugin { | ||
| const emitter = createHmrEmitter() | ||
| return { | ||
| name: 'vite-node:hmr', | ||
|
|
||
| configureServer(server) { | ||
| const _send = server.ws.send | ||
| server.emitter = emitter | ||
| server.ws.send = function (payload: HMRPayload) { | ||
| _send(payload) | ||
| emitter.emit('message', payload) | ||
| } | ||
| }, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| /* eslint-disable no-console */ | ||
| import type { ErrorPayload, FullReloadPayload, HMRPayload, PrunePayload, Update, UpdatePayload } from 'vite/types/hmrPayload' | ||
| import { cyan } from 'kolorist' | ||
| import type { ViteNodeRunner } from '../client' | ||
| import { getCache } from './hotContext' | ||
| import type { HMREmitter } from './emitter' | ||
|
|
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| export interface CustomEventMap { | ||
| 'vite:beforeUpdate': UpdatePayload | ||
| 'vite:beforePrune': PrunePayload | ||
| 'vite:beforeFullReload': FullReloadPayload | ||
| 'vite:error': ErrorPayload | ||
| } | ||
|
|
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| export type InferCustomEventPayload<T extends string> = | ||
| T extends keyof CustomEventMap ? CustomEventMap[T] : any | ||
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| export function sendMessageBuffer(runner: ViteNodeRunner, emitter: HMREmitter) { | ||
| const maps = getCache(runner) | ||
| maps.messageBuffer.forEach(msg => emitter.emit('custom', msg)) | ||
| maps.messageBuffer.length = 0 | ||
| } | ||
|
|
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| export async function reload(runner: ViteNodeRunner, files: string[]) { | ||
| // invalidate module cache but not node_modules | ||
| Array.from(runner.moduleCache.keys()) | ||
| .forEach((i) => { | ||
| if (!i.includes('node_modules')) | ||
| runner.moduleCache.delete(i) | ||
| }) | ||
|
|
||
| return Promise.all(files.map(file => runner.executeId(file))) | ||
| } | ||
|
|
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| function notifyListeners<T extends string>( | ||
| runner: ViteNodeRunner, | ||
| event: T, | ||
| data: InferCustomEventPayload<T>, | ||
| ): void | ||
| function notifyListeners(runner: ViteNodeRunner, event: string, data: any): void { | ||
| const maps = getCache(runner) | ||
| const cbs = maps.customListenersMap.get(event) | ||
| if (cbs) | ||
| cbs.forEach(cb => cb(data)) | ||
| } | ||
|
|
||
| async function queueUpdate(runner: ViteNodeRunner, p: Promise<(() => void) | undefined>) { | ||
| const maps = getCache(runner) | ||
| maps.queued.push(p) | ||
| if (!maps.pending) { | ||
| maps.pending = true | ||
| await Promise.resolve() | ||
| maps.pending = false | ||
| const loading = [...maps.queued] | ||
| maps.queued = [] | ||
| ;(await Promise.all(loading)).forEach(fn => fn && fn()) | ||
| } | ||
| } | ||
|
|
||
| async function fetchUpdate(runner: ViteNodeRunner, { path, acceptedPath }: Update) { | ||
| const maps = getCache(runner) | ||
| const mod = maps.hotModulesMap.get(path) | ||
|
|
||
| if (!mod) { | ||
| // In a code-splitting project, | ||
| // it is common that the hot-updating module is not loaded yet. | ||
| // https://github.com/vitejs/vite/issues/721 | ||
| return | ||
| } | ||
|
|
||
| const moduleMap = new Map() | ||
| const isSelfUpdate = path === acceptedPath | ||
|
|
||
| // make sure we only import each dep once | ||
| const modulesToUpdate = new Set<string>() | ||
| if (isSelfUpdate) { | ||
| // self update - only update self | ||
| modulesToUpdate.add(path) | ||
| } | ||
| else { | ||
| // dep update | ||
| for (const { deps } of mod.callbacks) { | ||
| deps.forEach((dep) => { | ||
| if (acceptedPath === dep) | ||
| modulesToUpdate.add(dep) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| // determine the qualified callbacks before we re-import the modules | ||
| const qualifiedCallbacks = mod.callbacks.filter(({ deps }) => { | ||
| return deps.some(dep => modulesToUpdate.has(dep)) | ||
| }) | ||
|
|
||
| await Promise.all( | ||
| Array.from(modulesToUpdate).map(async (dep) => { | ||
| const disposer = maps.disposeMap.get(dep) | ||
| if (disposer) | ||
| await disposer(maps.dataMap.get(dep)) | ||
| try { | ||
| const newMod = await reload(runner, [dep]) | ||
| moduleMap.set(dep, newMod) | ||
| } | ||
| catch (e: any) { | ||
| warnFailedFetch(e, dep) | ||
| } | ||
| }), | ||
| ) | ||
|
|
||
| return () => { | ||
| for (const { deps, fn } of qualifiedCallbacks) | ||
| fn(deps.map(dep => moduleMap.get(dep))) | ||
|
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| const loggedPath = isSelfUpdate ? path : `${acceptedPath} via ${path}` | ||
| console.log(`${cyan('[vite-node]')} hot updated: ${loggedPath}`) | ||
| } | ||
| } | ||
|
|
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| function warnFailedFetch(err: Error, path: string | string[]) { | ||
| if (!err.message.match('fetch')) | ||
| console.error(err) | ||
|
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| console.error( | ||
| `[hmr] Failed to reload ${path}. ` | ||
| + 'This could be due to syntax errors or importing non-existent ' | ||
| + 'modules. (see errors above)', | ||
| ) | ||
| } | ||
|
|
||
| export async function handleMessage(runner: ViteNodeRunner, emitter: HMREmitter, files: string[], payload: HMRPayload) { | ||
| const maps = getCache(runner) | ||
| switch (payload.type) { | ||
| case 'connected': | ||
| sendMessageBuffer(runner, emitter) | ||
| break | ||
| case 'update': | ||
| notifyListeners(runner, 'vite:beforeUpdate', payload) | ||
| if (maps.isFirstUpdate) { | ||
| reload(runner, files) | ||
| maps.isFirstUpdate = true | ||
| } | ||
| payload.updates.forEach((update) => { | ||
| if (update.type === 'js-update') { | ||
| queueUpdate(runner, fetchUpdate(runner, update)) | ||
| } | ||
| else { | ||
| // css-update | ||
| console.error(`${cyan('[vite-node]')} no support css hmr.}`) | ||
| } | ||
| }) | ||
| break | ||
| case 'full-reload': | ||
| reload(runner, files) | ||
| break | ||
| case 'prune': | ||
| payload.paths.forEach((path) => { | ||
| const fn = maps.pruneMap.get(path) | ||
| if (fn) | ||
| fn(maps.dataMap.get(path)) | ||
| }) | ||
| break | ||
| case 'error': { | ||
| notifyListeners(runner, 'vite:error', payload) | ||
| const err = payload.err | ||
| console.error(`${cyan('[vite-node]')} Internal Server Error\n${err.message}\n${err.stack}`) | ||
| break | ||
| } | ||
| } | ||
| } |
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