92 lines
3.6 KiB
JavaScript
92 lines
3.6 KiB
JavaScript
import { clearModuleContext } from "../../../server/web/sandbox";
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import { realpathSync } from "../../../lib/realpath";
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import path from "path";
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import isError from "../../../lib/is-error";
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import { clearManifestCache } from "../../../server/load-manifest";
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const originModules = [
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require.resolve("../../../server/require"),
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require.resolve("../../../server/load-components"),
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require.resolve("../../../server/next-server"),
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require.resolve("next/dist/compiled/next-server/app-page.runtime.dev.js"),
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require.resolve("next/dist/compiled/next-server/app-route.runtime.dev.js"),
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require.resolve("next/dist/compiled/next-server/pages.runtime.dev.js"),
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require.resolve("next/dist/compiled/next-server/pages-api.runtime.dev.js")
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];
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const RUNTIME_NAMES = [
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"webpack-runtime",
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"webpack-api-runtime"
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];
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function deleteFromRequireCache(filePath) {
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try {
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filePath = realpathSync(filePath);
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} catch (e) {
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if (isError(e) && e.code !== "ENOENT") throw e;
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}
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const mod = require.cache[filePath];
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if (mod) {
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// remove the child reference from the originModules
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for (const originModule of originModules){
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const parent = require.cache[originModule];
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if (parent) {
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const idx = parent.children.indexOf(mod);
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if (idx >= 0) parent.children.splice(idx, 1);
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}
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}
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// remove parent references from external modules
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for (const child of mod.children){
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child.parent = null;
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}
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delete require.cache[filePath];
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return true;
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}
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return false;
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}
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export function deleteAppClientCache() {
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deleteFromRequireCache(require.resolve("next/dist/compiled/next-server/app-page.runtime.dev.js"));
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}
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export function deleteCache(filePath) {
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// try to clear it from the fs cache
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clearManifestCache(filePath);
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deleteFromRequireCache(filePath);
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}
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const PLUGIN_NAME = "NextJsRequireCacheHotReloader";
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// This plugin flushes require.cache after emitting the files. Providing 'hot reloading' of server files.
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export class NextJsRequireCacheHotReloader {
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constructor(opts){
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this.prevAssets = null;
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this.hasServerComponents = opts.hasServerComponents;
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}
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apply(compiler) {
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compiler.hooks.assetEmitted.tap(PLUGIN_NAME, (_file, { targetPath })=>{
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// Clear module context in this process
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clearModuleContext(targetPath);
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deleteCache(targetPath);
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});
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compiler.hooks.afterEmit.tapPromise(PLUGIN_NAME, async (compilation)=>{
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for (const name of RUNTIME_NAMES){
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const runtimeChunkPath = path.join(compilation.outputOptions.path, `${name}.js`);
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deleteCache(runtimeChunkPath);
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}
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// we need to make sure to clear all server entries from cache
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// since they can have a stale webpack-runtime cache
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// which needs to always be in-sync
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let hasAppEntry = false;
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const entries = [
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...compilation.entries.keys()
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].filter((entry)=>{
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const isAppPath = entry.toString().startsWith("app/");
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if (isAppPath) hasAppEntry = true;
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return entry.toString().startsWith("pages/") || isAppPath;
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});
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if (hasAppEntry) {
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deleteAppClientCache();
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}
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for (const page of entries){
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const outputPath = path.join(compilation.outputOptions.path, page + ".js");
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deleteCache(outputPath);
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}
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});
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}
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}
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//# sourceMappingURL=nextjs-require-cache-hot-reloader.js.map
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