Nuxt/packages/nitro/src/rollup/config.ts

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import { pathToFileURL } from 'url'
import { createRequire } from 'module'
import { dirname, join, relative, resolve } from 'pathe'
import type { InputOptions, OutputOptions } from 'rollup'
import defu from 'defu'
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import { terser } from 'rollup-plugin-terser'
import commonjs from '@rollup/plugin-commonjs'
import { nodeResolve } from '@rollup/plugin-node-resolve'
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import alias from '@rollup/plugin-alias'
import json from '@rollup/plugin-json'
import replace from '@rollup/plugin-replace'
import virtual from '@rollup/plugin-virtual'
import wasmPlugin from '@rollup/plugin-wasm'
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import inject from '@rollup/plugin-inject'
import { visualizer } from 'rollup-plugin-visualizer'
import * as unenv from 'unenv'
import devalue from '@nuxt/devalue'
import type { Preset } from 'unenv'
import { sanitizeFilePath } from 'mlly'
import { genImport } from 'knitwork'
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import { NitroContext } from '../context'
import { resolvePath } from '../utils'
import { pkgDir } from '../dirs'
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import { dynamicRequire } from './plugins/dynamic-require'
import { externals, NodeExternalsOptions } from './plugins/externals'
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import { timing } from './plugins/timing'
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// import { autoMock } from './plugins/automock'
import { staticAssets, dirnames } from './plugins/static'
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import { assets } from './plugins/assets'
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import { middleware } from './plugins/middleware'
import { esbuild } from './plugins/esbuild'
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import { raw } from './plugins/raw'
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import { storage } from './plugins/storage'
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export type RollupConfig = InputOptions & { output: OutputOptions }
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export const getRollupConfig = (nitroContext: NitroContext) => {
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const extensions: string[] = ['.ts', '.mjs', '.js', '.json', '.node']
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const nodePreset = nitroContext.node === false ? unenv.nodeless : unenv.node
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const builtinPreset: Preset = {
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alias: {
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// General
debug: 'unenv/runtime/npm/debug',
consola: 'unenv/runtime/npm/consola',
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// Vue 2
encoding: 'unenv/runtime/mock/proxy',
he: 'unenv/runtime/mock/proxy',
resolve: 'unenv/runtime/mock/proxy',
'source-map': 'unenv/runtime/mock/proxy',
'lodash.template': 'unenv/runtime/mock/proxy',
'serialize-javascript': 'unenv/runtime/mock/proxy',
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// Vue 3
'estree-walker': 'unenv/runtime/mock/proxy',
'@babel/parser': 'unenv/runtime/mock/proxy',
'@vue/compiler-core': 'unenv/runtime/mock/proxy',
'@vue/compiler-dom': 'unenv/runtime/mock/proxy',
'@vue/compiler-ssr': 'unenv/runtime/mock/proxy',
...nitroContext.alias
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}
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}
const env = unenv.env(nodePreset, builtinPreset, nitroContext.env)
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if (nitroContext.sourceMap) {
env.polyfill.push('source-map-support/register.js')
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}
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// TODO: #590
const _require = createRequire(import.meta.url)
if (nitroContext._nuxt.majorVersion === 3) {
env.alias['vue/server-renderer'] = 'vue/server-renderer'
env.alias['vue/compiler-sfc'] = 'vue/compiler-sfc'
env.alias.vue = _require.resolve(`vue/dist/vue.cjs${nitroContext._nuxt.dev ? '' : '.prod'}.js`)
}
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const buildServerDir = join(nitroContext._nuxt.buildDir, 'dist/server')
const runtimeAppDir = join(nitroContext._internal.runtimeDir, 'app')
const rollupConfig: RollupConfig = {
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input: resolvePath(nitroContext, nitroContext.entry),
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output: {
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dir: nitroContext.output.serverDir,
entryFileNames: 'index.mjs',
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chunkFileNames (chunkInfo) {
let prefix = ''
const modules = Object.keys(chunkInfo.modules)
const lastModule = modules[modules.length - 1]
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if (lastModule.startsWith(buildServerDir)) {
prefix = join('app', relative(buildServerDir, dirname(lastModule)))
} else if (lastModule.startsWith(runtimeAppDir)) {
prefix = 'app'
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} else if (lastModule.startsWith(nitroContext._nuxt.buildDir)) {
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prefix = 'nuxt'
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} else if (lastModule.startsWith(nitroContext._internal.runtimeDir)) {
prefix = 'nitro'
} else if (nitroContext.middleware.find(m => lastModule.startsWith(m.handle as string))) {
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prefix = 'middleware'
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} else if (lastModule.includes('assets')) {
prefix = 'assets'
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}
return join('chunks', prefix, '[name].mjs')
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},
inlineDynamicImports: nitroContext.inlineDynamicImports,
format: 'esm',
exports: 'auto',
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intro: '',
outro: '',
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preferConst: true,
sanitizeFileName: sanitizeFilePath,
sourcemap: !!nitroContext.sourceMap,
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sourcemapExcludeSources: true,
sourcemapPathTransform (relativePath, sourcemapPath) {
return resolve(dirname(sourcemapPath), relativePath)
}
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},
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external: env.external,
// https://github.com/rollup/rollup/pull/4021#issuecomment-809985618
// https://github.com/nuxt/framework/issues/160
makeAbsoluteExternalsRelative: false,
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plugins: [],
onwarn (warning, rollupWarn) {
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if (
!['CIRCULAR_DEPENDENCY', 'EVAL'].includes(warning.code) &&
!warning.message.includes('Unsupported source map comment')
) {
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rollupWarn(warning)
}
},
treeshake: {
moduleSideEffects (id) {
return nitroContext.moduleSideEffects.some(match => id.startsWith(match))
}
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}
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}
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if (nitroContext.timing) {
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rollupConfig.plugins.push(timing())
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}
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// Raw asset loader
rollupConfig.plugins.push(raw())
// WASM import support
if (nitroContext.experiments.wasm) {
rollupConfig.plugins.push(wasmPlugin())
}
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// https://github.com/rollup/plugins/tree/master/packages/replace
rollupConfig.plugins.push(replace({
sourceMap: !!nitroContext.sourceMap,
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preventAssignment: true,
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values: {
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'process.env.NODE_ENV': nitroContext._nuxt.dev ? '"development"' : '"production"',
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'typeof window': '"undefined"',
...Object.fromEntries([';', '(', '{', '}', ' ', '\t', '\n'].map(d => [`${d}global.`, `${d}globalThis.`])),
'process.server': 'true',
'process.client': 'false',
'process.env.NUXT_NO_SSR': JSON.stringify(!nitroContext._nuxt.ssr),
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'process.env.NUXT_STATIC_BASE': JSON.stringify(nitroContext._nuxt.staticAssets.base),
'process.env.NUXT_STATIC_VERSION': JSON.stringify(nitroContext._nuxt.staticAssets.version),
'process.env.NUXT_FULL_STATIC': nitroContext._nuxt.fullStatic as unknown as string,
'process.env.NITRO_PRESET': JSON.stringify(nitroContext.preset),
'process.env.RUNTIME_CONFIG': devalue(nitroContext._nuxt.runtimeConfig),
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'process.env.DEBUG': JSON.stringify(nitroContext._nuxt.dev)
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}
}))
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// ESBuild
rollupConfig.plugins.push(esbuild({
target: 'es2019',
sourceMap: !!nitroContext.sourceMap,
...nitroContext.esbuild?.options
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}))
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// Dynamic Require Support
rollupConfig.plugins.push(dynamicRequire({
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dir: resolve(nitroContext._nuxt.buildDir, 'dist/server'),
inline: nitroContext.node === false || nitroContext.inlineDynamicImports,
ignore: [
'client.manifest.mjs',
'server.js',
'server.cjs',
'server.mjs',
'server.manifest.mjs'
]
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}))
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// Assets
rollupConfig.plugins.push(assets(nitroContext.assets))
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// Static
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// TODO: use assets plugin
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if (nitroContext.serveStatic) {
rollupConfig.plugins.push(dirnames())
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rollupConfig.plugins.push(staticAssets(nitroContext))
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}
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// Storage
rollupConfig.plugins.push(storage(nitroContext.storage))
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// Middleware
rollupConfig.plugins.push(middleware(() => {
const _middleware = [
...nitroContext.scannedMiddleware,
...nitroContext.middleware
]
if (nitroContext.serveStatic) {
_middleware.unshift({ route: '/', handle: '#nitro/server/static' })
}
return _middleware
}))
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// Polyfill
rollupConfig.plugins.push(virtual({
'#polyfill': env.polyfill.map(p => genImport(p)).join('\n')
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}))
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// https://github.com/rollup/plugins/tree/master/packages/alias
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const renderer = nitroContext.renderer || (nitroContext._nuxt.majorVersion === 3 ? 'vue3' : 'vue2')
const vue2ServerRenderer = 'vue-server-renderer/' + (nitroContext._nuxt.dev ? 'build.dev.js' : 'build.prod.js')
rollupConfig.plugins.push(alias({
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entries: {
'#nitro': nitroContext._internal.runtimeDir,
'#nitro-renderer': resolve(nitroContext._internal.runtimeDir, 'app', renderer),
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'#paths': resolve(nitroContext._internal.runtimeDir, 'app/paths'),
'#config': resolve(nitroContext._internal.runtimeDir, 'app/config'),
'#nitro-vue-renderer': vue2ServerRenderer,
// Only file and data URLs are supported by the default ESM loader on Windows (#427)
'#build': nitroContext._nuxt.dev && process.platform === 'win32'
? pathToFileURL(nitroContext._nuxt.buildDir).href
: nitroContext._nuxt.buildDir,
'~': nitroContext._nuxt.srcDir,
'@/': nitroContext._nuxt.srcDir,
'~~': nitroContext._nuxt.rootDir,
'@@/': nitroContext._nuxt.rootDir,
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...env.alias
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}
}))
const moduleDirectories = [
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resolve(nitroContext._nuxt.rootDir, 'node_modules'),
...nitroContext._nuxt.modulesDir,
resolve(pkgDir, '../node_modules'),
'node_modules'
]
// Externals Plugin
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if (nitroContext.externals) {
rollupConfig.plugins.push(externals(defu(nitroContext.externals as NodeExternalsOptions, {
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outDir: nitroContext.output.serverDir,
moduleDirectories,
external: [
...(nitroContext._nuxt.dev ? [nitroContext._nuxt.buildDir] : [])
],
inline: [
'#',
'~',
'@/',
'~~',
'@@/',
'virtual:',
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nitroContext._internal.runtimeDir,
nitroContext._nuxt.srcDir,
nitroContext._nuxt.rootDir,
nitroContext._nuxt.serverDir,
...nitroContext.middleware.map(m => m.handle).filter(i => typeof i === 'string') as string[],
...(nitroContext._nuxt.dev ? [] : ['vue', '@vue/', '@nuxt/'])
],
traceOptions: {
base: '/',
processCwd: nitroContext._nuxt.rootDir,
exportsOnly: true
}
})))
}
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// https://github.com/rollup/plugins/tree/master/packages/node-resolve
rollupConfig.plugins.push(nodeResolve({
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extensions,
preferBuiltins: true,
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rootDir: nitroContext._nuxt.rootDir,
moduleDirectories,
// 'module' is intentionally not supported because of externals
mainFields: ['main'],
exportConditions: [
'default',
'module',
'node',
'import'
]
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}))
// Automatically mock unresolved externals
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// rollupConfig.plugins.push(autoMock())
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// https://github.com/rollup/plugins/tree/master/packages/commonjs
rollupConfig.plugins.push(commonjs({
sourceMap: !!nitroContext.sourceMap,
esmExternals: id => !id.startsWith('unenv/'),
requireReturnsDefault: 'auto'
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}))
// https://github.com/rollup/plugins/tree/master/packages/json
rollupConfig.plugins.push(json())
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// https://github.com/rollup/plugins/tree/master/packages/inject
rollupConfig.plugins.push(inject({
// TODO: https://github.com/rollup/plugins/pull/1066
// @ts-ignore
sourceMap: !!nitroContext.sourceMap,
...env.inject
}))
// https://github.com/TrySound/rollup-plugin-terser
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// https://github.com/terser/terser#minify-nitroContext
if (nitroContext.minify) {
rollupConfig.plugins.push(terser({
mangle: {
keep_fnames: true,
keep_classnames: true
},
format: {
comments: false
}
}))
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}
if (nitroContext.analyze) {
// https://github.com/btd/rollup-plugin-visualizer
rollupConfig.plugins.push(visualizer({
...nitroContext.analyze,
filename: nitroContext.analyze.filename.replace('{name}', 'nitro'),
title: 'Nitro Server bundle stats'
}))
}
return rollupConfig
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}