Nuxt/packages/nuxi/src/commands/analyze.ts

71 lines
1.8 KiB
TypeScript

import { promises as fsp } from 'fs'
import { join, resolve } from 'pathe'
import { createApp, lazyHandle } from 'h3'
import { createServer } from '../utils/server'
import { writeTypes } from '../utils/prepare'
import { loadKit } from '../utils/kit'
import { clearDir } from '../utils/fs'
import { defineNuxtCommand } from './index'
export default defineNuxtCommand({
meta: {
name: 'analyze',
usage: 'npx nuxi analyze [rootDir]',
description: 'Build nuxt and analyze production bundle (experimental)'
},
async invoke (args) {
process.env.NODE_ENV = process.env.NODE_ENV || 'production'
const rootDir = resolve(args._[0] || '.')
const statsDir = join(rootDir, '.nuxt/stats')
const { loadNuxt, buildNuxt } = await loadKit(rootDir)
const nuxt = await loadNuxt({
rootDir,
config: {
build: {
analyze: true
}
}
})
await clearDir(nuxt.options.buildDir)
await writeTypes(nuxt)
await buildNuxt(nuxt)
const app = createApp()
const server = createServer(app)
const serveFile = (filePath: string) => lazyHandle(async () => {
const contents = await fsp.readFile(filePath, 'utf-8')
return (_req, res) => { res.end(contents) }
})
console.warn('Do not deploy analyze results! Use `nuxi build` before deploying.')
console.info('Starting stats server...')
app.use('/client', serveFile(join(statsDir, 'client.html')))
app.use('/nitro', serveFile(join(statsDir, 'nitro.html')))
app.use(() => `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Nuxt Bundle Stats (experimental)</title>
</head>
<h1>Nuxt Bundle Stats (experimental)</h1>
<ul>
<li>
<a href="/nitro">Nitro server bundle stats</a>
</li>
<li>
<a href="/client">Client bundle stats</a>
</li>
</ul>
</html>`)
await server.listen()
}
})