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

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import { dirname, join, normalize, relative, resolve } from 'upath'
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import { InputOptions, OutputOptions } from 'rollup'
import defu from 'defu'
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import { terser } from 'rollup-plugin-terser'
import commonjs from '@rollup/plugin-commonjs'
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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'
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import inject from '@rollup/plugin-inject'
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import analyze from 'rollup-plugin-analyzer'
import * as unenv from 'unenv'
import type { Preset } from 'unenv'
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import { NitroContext } from '../context'
import { resolvePath, MODULE_DIR } from '../utils'
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import { dynamicRequire } from './plugins/dynamic-require'
import { externals } from './plugins/externals'
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'
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}
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}
const env = unenv.env(nodePreset, builtinPreset, nitroContext.env)
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delete env.alias['node-fetch'] // FIX ME
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if (nitroContext.sourceMap) {
env.polyfill.push('source-map-support/register.js')
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}
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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'
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} else if (!prefix && 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,
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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())
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// https://github.com/rollup/plugins/tree/master/packages/replace
rollupConfig.plugins.push(replace({
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// @ts-ignore https://github.com/rollup/plugins/pull/810
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"',
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'global.': 'globalThis.',
'process.server': 'true',
'process.client': 'false',
'process.env.NUXT_NO_SSR': JSON.stringify(!nitroContext._nuxt.ssr),
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'process.env.ROUTER_BASE': JSON.stringify(nitroContext._nuxt.routerBase),
'process.env.PUBLIC_PATH': JSON.stringify(nitroContext._nuxt.publicPath),
'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': JSON.stringify(nitroContext._nuxt.runtimeConfig),
'process.env.DEBUG': JSON.stringify(nitroContext._nuxt.dev)
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}
}))
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// ESBuild
rollupConfig.plugins.push(esbuild({
target: 'es2019',
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sourceMap: true
}))
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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,
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globbyOptions: {
ignore: [
'server.js'
]
}
}))
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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 => `import '${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': normalize(require.resolve(resolve(nitroContext._internal.runtimeDir, 'app', renderer))),
'#config': normalize(require.resolve(resolve(nitroContext._internal.runtimeDir, 'app/config'))),
'#nitro-vue-renderer': vue2ServerRenderer,
'#build': 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'),
resolve(MODULE_DIR, 'node_modules'),
resolve(MODULE_DIR, '../node_modules'),
'node_modules'
]
// Externals Plugin
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if (nitroContext.externals) {
rollupConfig.plugins.push(externals(defu(nitroContext.externals as any, {
outDir: nitroContext.output.serverDir,
moduleDirectories,
external: [
...(nitroContext._nuxt.dev ? [nitroContext._nuxt.buildDir] : [])
],
inline: [
'#',
'~',
'@/',
'~~',
'@@/',
'virtual:',
'ohmyfetch', // TODO: Webpack externals forces default import!
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nitroContext._internal.runtimeDir,
nitroContext._nuxt.srcDir,
nitroContext._nuxt.rootDir,
nitroContext._nuxt.serverDir,
...nitroContext.middleware.map(m => m.handle),
...(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',
'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({
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
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rollupConfig.plugins.push(inject(env.inject))
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if (nitroContext.analyze) {
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// https://github.com/doesdev/rollup-plugin-analyzer
rollupConfig.plugins.push(analyze())
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}
// 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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}
return rollupConfig
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}