mirror of https://github.com/nuxt/nuxt.git
71 lines
2.2 KiB
JavaScript
71 lines
2.2 KiB
JavaScript
const hash = require('hash-sum')
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const uniq = require('lodash.uniq')
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const { isJS, onEmit } = require('./util')
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module.exports = class VueSSRClientPlugin {
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constructor(options = {}) {
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this.options = Object.assign({
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filename: 'vue-ssr-client-manifest.json'
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}, options)
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}
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apply(compiler) {
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onEmit(compiler, 'vue-client-plugin', (compilation, cb) => {
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const stats = compilation.getStats().toJson()
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const allFiles = uniq(stats.assets
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.map(a => a.name))
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const initialFiles = uniq(Object.keys(stats.entrypoints)
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.map(name => stats.entrypoints[name].assets)
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.reduce((assets, all) => all.concat(assets), [])
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.filter(isJS))
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const asyncFiles = allFiles
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.filter(isJS)
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.filter(file => initialFiles.indexOf(file) < 0)
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const manifest = {
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publicPath: stats.publicPath,
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all: allFiles,
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initial: initialFiles,
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async: asyncFiles,
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modules: { /* [identifier: string]: Array<index: number> */ }
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}
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const assetModules = stats.modules.filter(m => m.assets.length)
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const fileToIndex = file => manifest.all.indexOf(file)
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stats.modules.forEach(m => {
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// ignore modules duplicated in multiple chunks
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if (m.chunks.length === 1) {
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const cid = m.chunks[0]
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const chunk = stats.chunks.find(c => c.id === cid)
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if (!chunk || !chunk.files) {
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return
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}
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const files = manifest.modules[hash(m.identifier)] = chunk.files.map(fileToIndex)
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// find all asset modules associated with the same chunk
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assetModules.forEach(m => {
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if (m.chunks.some(id => id === cid)) {
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files.push.apply(files, m.assets.map(fileToIndex))
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}
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})
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}
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})
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// const debug = (file, obj) => {
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// require('fs').writeFileSync(__dirname + '/' + file, JSON.stringify(obj, null, 2))
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// }
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// debug('stats.json', stats)
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// debug('client-manifest.json', manifest)
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const json = JSON.stringify(manifest, null, 2)
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compilation.assets[this.options.filename] = {
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source: () => json,
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size: () => json.length
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}
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cb()
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})
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}
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}
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