next/dist/build/webpack/plugins/nextjs-require-cache-hot-reloader.js

The React Framework

"use strict";exports.__esModule=true;exports.NextJsRequireCacheHotReloader=void 0;var _webpack=require("next/dist/compiled/webpack/webpack");var _fs=require("fs");var _path=_interopRequireDefault(require("path"));function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}const originModules=[require.resolve('../../../next-server/server/require'),require.resolve('../../../next-server/server/load-components')];function deleteCache(filePath){try{filePath=(0,_fs.realpathSync)(filePath);}catch(e){if(e.code!=='ENOENT')throw e;}const module=require.cache[filePath];if(module){// remove the child reference from the originModules
for(const originModule of originModules){const parent=require.cache[originModule];if(parent){const idx=parent.children.indexOf(module);if(idx>=0)parent.children.splice(idx,1);}}// remove parent references from external modules
for(const child of module.children){child.parent=null;}}delete require.cache[filePath];}const PLUGIN_NAME='NextJsRequireCacheHotReloader';// This plugin flushes require.cache after emitting the files. Providing 'hot reloading' of server files.
class NextJsRequireCacheHotReloader{constructor(){this.prevAssets=null;this.previousOutputPathsWebpack5=new Set();this.currentOutputPathsWebpack5=new Set();}apply(compiler){if(_webpack.isWebpack5){// @ts-ignored Webpack has this hooks
compiler.hooks.assetEmitted.tap(PLUGIN_NAME,(_file,{targetPath})=>{this.currentOutputPathsWebpack5.add(targetPath);deleteCache(targetPath);});compiler.hooks.afterEmit.tap(PLUGIN_NAME,compilation=>{const runtimeChunkPath=_path.default.join(compilation.outputOptions.path,'webpack-runtime.js');deleteCache(runtimeChunkPath);// we need to make sure to clear all server entries from cache
// since they can have a stale webpack-runtime cache
// which needs to always be in-sync
const entries=[...compilation.entries.keys()].filter(entry=>entry.toString().startsWith('pages/'));entries.forEach(page=>{const outputPath=_path.default.join(compilation.outputOptions.path,page+'.js');deleteCache(outputPath);});});this.previousOutputPathsWebpack5=new Set(this.currentOutputPathsWebpack5);this.currentOutputPathsWebpack5.clear();return;}compiler.hooks.afterEmit.tapAsync(PLUGIN_NAME,(compilation,callback)=>{const{assets}=compilation;if(this.prevAssets){for(const f of Object.keys(assets)){deleteCache(assets[f].existsAt);}for(const f of Object.keys(this.prevAssets)){if(!assets[f]){deleteCache(this.prevAssets[f].existsAt);}}}this.prevAssets=assets;callback();});}}exports.NextJsRequireCacheHotReloader=NextJsRequireCacheHotReloader;
//# sourceMappingURL=nextjs-require-cache-hot-reloader.js.map