40 lines
1 KiB
TypeScript
40 lines
1 KiB
TypeScript
import { Compiler, Plugin } from 'webpack'
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import { realpathSync } from 'fs'
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function deleteCache(path: string) {
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try {
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delete require.cache[realpathSync(path)]
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} catch (e) {
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if (e.code !== 'ENOENT') throw e
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} finally {
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delete require.cache[path]
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}
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}
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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 implements Plugin {
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prevAssets: any = null
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apply(compiler: Compiler) {
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compiler.hooks.afterEmit.tapAsync(
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'NextJsRequireCacheHotReloader',
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(compilation, callback) => {
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const { assets } = compilation
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if (this.prevAssets) {
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for (const f of Object.keys(assets)) {
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deleteCache(assets[f].existsAt)
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}
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for (const f of Object.keys(this.prevAssets)) {
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if (!assets[f]) {
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deleteCache(this.prevAssets[f].existsAt)
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}
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}
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}
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this.prevAssets = assets
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callback()
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}
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)
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}
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}
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