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next.js/packages/next/build/webpack/plugins/unlink-file-plugin.js
2018-10-02 00:55:31 +02:00

36 lines
977 B
JavaScript

// @flow
import { join } from 'path'
import promisify from '../../../lib/promisify'
import fs from 'fs'
import { IS_BUNDLED_PAGE_REGEX } from 'next-server/constants'
const unlink = promisify(fs.unlink)
// Makes sure removed pages are removed from `.next` in development
export default class UnlinkFilePlugin {
prevAssets: any
constructor () {
this.prevAssets = {}
}
apply (compiler: any) {
compiler.hooks.afterEmit.tapAsync('NextJsUnlinkRemovedPages', (compilation, callback) => {
const removed = Object.keys(this.prevAssets)
.filter((a) => IS_BUNDLED_PAGE_REGEX.test(a) && !compilation.assets[a])
this.prevAssets = compilation.assets
Promise.all(removed.map(async (f) => {
const path = join(compiler.outputPath, f)
try {
await unlink(path)
} catch (err) {
if (err.code === 'ENOENT') return
throw err
}
}))
.then(() => callback(), callback)
})
}
}