mirror of https://github.com/nuxt/nuxt.git
111 lines
3.1 KiB
TypeScript
111 lines
3.1 KiB
TypeScript
import { promises as fsp } from 'node:fs'
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import { join, resolve } from 'pathe'
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import { createApp, eventHandler, lazyEventHandler, toNodeListener } from 'h3'
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import { listen } from 'listhen'
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import type { NuxtAnalyzeMeta } from '@nuxt/schema'
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import { defu } from 'defu'
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import { loadKit } from '../utils/kit'
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import { clearDir } from '../utils/fs'
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import { overrideEnv } from '../utils/env'
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import { defineNuxtCommand } from './index'
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export default defineNuxtCommand({
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meta: {
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name: 'analyze',
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usage: 'npx nuxi analyze [--log-level] [--name] [--no-serve] [rootDir]',
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description: 'Build nuxt and analyze production bundle (experimental)'
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},
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async invoke (args, options = {}) {
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overrideEnv('production')
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const name = args.name || 'default'
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const slug = name.trim().replace(/[^a-z0-9_-]/gi, '_')
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const rootDir = resolve(args._[0] || '.')
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let analyzeDir = join(rootDir, '.nuxt/analyze', slug)
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let buildDir = join(analyzeDir, '.nuxt')
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let outDir = join(analyzeDir, '.output')
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const startTime = Date.now()
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const { loadNuxt, buildNuxt } = await loadKit(rootDir)
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const nuxt = await loadNuxt({
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rootDir,
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overrides: defu(options.overrides, {
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build: {
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analyze: true
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},
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analyzeDir,
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buildDir,
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nitro: {
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output: {
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dir: outDir
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}
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},
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logLevel: args['log-level']
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})
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})
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analyzeDir = nuxt.options.analyzeDir
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buildDir = nuxt.options.buildDir
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outDir = nuxt.options.nitro.output?.dir || outDir
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await clearDir(analyzeDir)
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await buildNuxt(nuxt)
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const endTime = Date.now()
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const meta: NuxtAnalyzeMeta = {
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name,
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slug,
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startTime,
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endTime,
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analyzeDir,
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buildDir,
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outDir
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}
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await nuxt.callHook('build:analyze:done', meta)
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await fsp.writeFile(join(analyzeDir, 'meta.json'), JSON.stringify(meta, null, 2), 'utf-8')
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console.info('Analyze results are available at: `' + analyzeDir + '`')
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console.warn('Do not deploy analyze results! Use `nuxi build` before deploying.')
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if (args.serve !== false && !process.env.CI) {
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const app = createApp()
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const serveFile = (filePath: string) => lazyEventHandler(async () => {
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const contents = await fsp.readFile(filePath, 'utf-8')
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return eventHandler((event) => { event.node.res.end(contents) })
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})
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console.info('Starting stats server...')
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app.use('/client', serveFile(join(analyzeDir, 'client.html')))
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app.use('/nitro', serveFile(join(analyzeDir, 'nitro.html')))
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app.use(eventHandler(() => `<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Nuxt Bundle Stats (experimental)</title>
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</head>
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<h1>Nuxt Bundle Stats (experimental)</h1>
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<ul>
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<li>
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<a href="/nitro">Nitro server bundle stats</a>
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</li>
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<li>
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<a href="/client">Client bundle stats</a>
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</li>
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</ul>
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</html>
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`))
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await listen(toNodeListener(app))
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return 'wait' as const
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}
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}
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})
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