564 lines
18 KiB
TypeScript
564 lines
18 KiB
TypeScript
import chalk from 'chalk'
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import findUp from 'next/dist/compiled/find-up'
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import { basename, extname } from 'path'
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import { Agent as HttpAgent } from 'http'
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import { Agent as HttpsAgent } from 'https'
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import * as Log from '../build/output/log'
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import { CONFIG_FILE, PHASE_DEVELOPMENT_SERVER } from '../shared/lib/constants'
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import { execOnce } from '../shared/lib/utils'
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import {
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defaultConfig,
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NextConfigComplete,
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normalizeConfig,
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} from './config-shared'
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import { loadWebpackHook } from './config-utils'
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import { ImageConfig, imageConfigDefault, VALID_LOADERS } from './image-config'
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import { loadEnvConfig } from '@next/env'
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import { hasNextSupport } from '../telemetry/ci-info'
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export { DomainLocale, NextConfig, normalizeConfig } from './config-shared'
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const targets = ['server', 'serverless', 'experimental-serverless-trace']
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const experimentalWarning = execOnce(() => {
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Log.warn(chalk.bold('You have enabled experimental feature(s).'))
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Log.warn(
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`Experimental features are not covered by semver, and may cause unexpected or broken application behavior. ` +
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`Use them at your own risk.`
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)
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console.warn()
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})
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function assignDefaults(userConfig: { [key: string]: any }) {
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if (typeof userConfig.exportTrailingSlash !== 'undefined') {
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console.warn(
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chalk.yellow.bold('Warning: ') +
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'The "exportTrailingSlash" option has been renamed to "trailingSlash". Please update your next.config.js.'
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)
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if (typeof userConfig.trailingSlash === 'undefined') {
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userConfig.trailingSlash = userConfig.exportTrailingSlash
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}
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delete userConfig.exportTrailingSlash
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}
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if (typeof userConfig.experimental?.reactMode !== 'undefined') {
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console.warn(
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chalk.yellow.bold('Warning: ') +
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'The experimental "reactMode" option has been replaced with "reactRoot". Please update your next.config.js.'
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)
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if (typeof userConfig.experimental?.reactRoot === 'undefined') {
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userConfig.experimental.reactRoot = ['concurrent', 'blocking'].includes(
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userConfig.experimental.reactMode
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)
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}
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delete userConfig.experimental.reactMode
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}
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const config = Object.keys(userConfig).reduce<{ [key: string]: any }>(
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(currentConfig, key) => {
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const value = userConfig[key]
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if (value === undefined || value === null) {
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return currentConfig
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}
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if (
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key === 'experimental' &&
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value !== undefined &&
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value !== defaultConfig[key]
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) {
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experimentalWarning()
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}
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if (key === 'distDir') {
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if (typeof value !== 'string') {
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throw new Error(
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`Specified distDir is not a string, found type "${typeof value}"`
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)
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}
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const userDistDir = value.trim()
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// don't allow public as the distDir as this is a reserved folder for
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// public files
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if (userDistDir === 'public') {
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throw new Error(
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`The 'public' directory is reserved in Next.js and can not be set as the 'distDir'. https://nextjs.org/docs/messages/can-not-output-to-public`
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)
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}
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// make sure distDir isn't an empty string as it can result in the provided
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// directory being deleted in development mode
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if (userDistDir.length === 0) {
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throw new Error(
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`Invalid distDir provided, distDir can not be an empty string. Please remove this config or set it to undefined`
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)
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}
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}
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if (key === 'pageExtensions') {
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if (!Array.isArray(value)) {
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throw new Error(
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`Specified pageExtensions is not an array of strings, found "${value}". Please update this config or remove it.`
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)
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}
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if (!value.length) {
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throw new Error(
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`Specified pageExtensions is an empty array. Please update it with the relevant extensions or remove it.`
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)
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}
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value.forEach((ext) => {
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if (typeof ext !== 'string') {
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throw new Error(
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`Specified pageExtensions is not an array of strings, found "${ext}" of type "${typeof ext}". Please update this config or remove it.`
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)
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}
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})
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}
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if (!!value && value.constructor === Object) {
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currentConfig[key] = {
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...defaultConfig[key],
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...Object.keys(value).reduce<any>((c, k) => {
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const v = value[k]
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if (v !== undefined && v !== null) {
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c[k] = v
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}
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return c
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}, {}),
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}
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} else {
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currentConfig[key] = value
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}
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return currentConfig
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},
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{}
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)
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const result = { ...defaultConfig, ...config }
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if (typeof result.assetPrefix !== 'string') {
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throw new Error(
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`Specified assetPrefix is not a string, found type "${typeof result.assetPrefix}" https://nextjs.org/docs/messages/invalid-assetprefix`
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)
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}
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if (typeof result.basePath !== 'string') {
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throw new Error(
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`Specified basePath is not a string, found type "${typeof result.basePath}"`
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)
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}
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if (result.basePath !== '') {
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if (result.basePath === '/') {
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throw new Error(
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`Specified basePath /. basePath has to be either an empty string or a path prefix"`
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)
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}
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if (!result.basePath.startsWith('/')) {
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throw new Error(
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`Specified basePath has to start with a /, found "${result.basePath}"`
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)
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}
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if (result.basePath !== '/') {
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if (result.basePath.endsWith('/')) {
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throw new Error(
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`Specified basePath should not end with /, found "${result.basePath}"`
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)
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}
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if (result.assetPrefix === '') {
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result.assetPrefix = result.basePath
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}
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if (result.amp?.canonicalBase === '') {
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result.amp.canonicalBase = result.basePath
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}
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}
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}
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if (result?.images) {
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const images: ImageConfig = result.images
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if (typeof images !== 'object') {
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throw new Error(
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`Specified images should be an object received ${typeof images}.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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if (images.domains) {
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if (!Array.isArray(images.domains)) {
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throw new Error(
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`Specified images.domains should be an Array received ${typeof images.domains}.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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if (images.domains.length > 50) {
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throw new Error(
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`Specified images.domains exceeds length of 50, received length (${images.domains.length}), please reduce the length of the array to continue.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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const invalid = images.domains.filter(
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(d: unknown) => typeof d !== 'string'
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)
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if (invalid.length > 0) {
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throw new Error(
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`Specified images.domains should be an Array of strings received invalid values (${invalid.join(
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', '
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)}).\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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}
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if (images.deviceSizes) {
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const { deviceSizes } = images
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if (!Array.isArray(deviceSizes)) {
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throw new Error(
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`Specified images.deviceSizes should be an Array received ${typeof deviceSizes}.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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if (deviceSizes.length > 25) {
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throw new Error(
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`Specified images.deviceSizes exceeds length of 25, received length (${deviceSizes.length}), please reduce the length of the array to continue.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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const invalid = deviceSizes.filter((d: unknown) => {
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return typeof d !== 'number' || d < 1 || d > 10000
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})
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if (invalid.length > 0) {
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throw new Error(
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`Specified images.deviceSizes should be an Array of numbers that are between 1 and 10000, received invalid values (${invalid.join(
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', '
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)}).\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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}
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if (images.imageSizes) {
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const { imageSizes } = images
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if (!Array.isArray(imageSizes)) {
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throw new Error(
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`Specified images.imageSizes should be an Array received ${typeof imageSizes}.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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if (imageSizes.length > 25) {
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throw new Error(
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`Specified images.imageSizes exceeds length of 25, received length (${imageSizes.length}), please reduce the length of the array to continue.\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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const invalid = imageSizes.filter((d: unknown) => {
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return typeof d !== 'number' || d < 1 || d > 10000
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})
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if (invalid.length > 0) {
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throw new Error(
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`Specified images.imageSizes should be an Array of numbers that are between 1 and 10000, received invalid values (${invalid.join(
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', '
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)}).\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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}
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if (!images.loader) {
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images.loader = 'default'
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}
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if (!VALID_LOADERS.includes(images.loader)) {
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throw new Error(
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`Specified images.loader should be one of (${VALID_LOADERS.join(
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', '
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)}), received invalid value (${
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images.loader
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}).\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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// Append trailing slash for non-default loaders
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if (images.path) {
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if (
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images.loader !== 'default' &&
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images.path[images.path.length - 1] !== '/'
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) {
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images.path += '/'
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}
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}
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if (images.path === imageConfigDefault.path && result.basePath) {
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images.path = `${result.basePath}${images.path}`
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}
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if (
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images.minimumCacheTTL &&
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(!Number.isInteger(images.minimumCacheTTL) || images.minimumCacheTTL < 0)
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) {
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throw new Error(
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`Specified images.minimumCacheTTL should be an integer 0 or more
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', '
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)}), received (${images.minimumCacheTTL}).\nSee more info here: https://nextjs.org/docs/messages/invalid-images-config`
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)
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}
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}
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// TODO: Change defaultConfig type to NextConfigComplete
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// so we don't need "!" here.
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setHttpAgentOptions(
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result.httpAgentOptions || defaultConfig.httpAgentOptions!
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)
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if (result.i18n) {
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const { i18n } = result
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const i18nType = typeof i18n
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if (i18nType !== 'object') {
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throw new Error(
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`Specified i18n should be an object received ${i18nType}.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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if (!Array.isArray(i18n.locales)) {
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throw new Error(
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`Specified i18n.locales should be an Array received ${typeof i18n.locales}.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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if (i18n.locales.length > 100) {
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Log.warn(
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`Received ${i18n.locales.length} i18n.locales items which exceeds the recommended max of 100.\nSee more info here: https://nextjs.org/docs/advanced-features/i18n-routing#how-does-this-work-with-static-generation`
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)
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}
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const defaultLocaleType = typeof i18n.defaultLocale
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if (!i18n.defaultLocale || defaultLocaleType !== 'string') {
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throw new Error(
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`Specified i18n.defaultLocale should be a string.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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if (typeof i18n.domains !== 'undefined' && !Array.isArray(i18n.domains)) {
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throw new Error(
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`Specified i18n.domains must be an array of domain objects e.g. [ { domain: 'example.fr', defaultLocale: 'fr', locales: ['fr'] } ] received ${typeof i18n.domains}.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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if (i18n.domains) {
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const invalidDomainItems = i18n.domains.filter((item) => {
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if (!item || typeof item !== 'object') return true
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if (!item.defaultLocale) return true
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if (!item.domain || typeof item.domain !== 'string') return true
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const defaultLocaleDuplicate = i18n.domains?.find(
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(altItem) =>
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altItem.defaultLocale === item.defaultLocale &&
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altItem.domain !== item.domain
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)
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if (defaultLocaleDuplicate) {
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console.warn(
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`Both ${item.domain} and ${defaultLocaleDuplicate.domain} configured the defaultLocale ${item.defaultLocale} but only one can. Change one item's default locale to continue`
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)
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return true
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}
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let hasInvalidLocale = false
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if (Array.isArray(item.locales)) {
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for (const locale of item.locales) {
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if (typeof locale !== 'string') hasInvalidLocale = true
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for (const domainItem of i18n.domains || []) {
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if (domainItem === item) continue
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if (domainItem.locales && domainItem.locales.includes(locale)) {
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console.warn(
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`Both ${item.domain} and ${domainItem.domain} configured the locale (${locale}) but only one can. Remove it from one i18n.domains config to continue`
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)
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hasInvalidLocale = true
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break
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}
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}
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}
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}
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return hasInvalidLocale
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})
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if (invalidDomainItems.length > 0) {
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throw new Error(
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`Invalid i18n.domains values:\n${invalidDomainItems
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.map((item: any) => JSON.stringify(item))
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.join(
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'\n'
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)}\n\ndomains value must follow format { domain: 'example.fr', defaultLocale: 'fr', locales: ['fr'] }.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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}
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if (!Array.isArray(i18n.locales)) {
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throw new Error(
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`Specified i18n.locales must be an array of locale strings e.g. ["en-US", "nl-NL"] received ${typeof i18n.locales}.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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const invalidLocales = i18n.locales.filter(
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(locale: any) => typeof locale !== 'string'
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)
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if (invalidLocales.length > 0) {
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throw new Error(
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`Specified i18n.locales contains invalid values (${invalidLocales
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.map(String)
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.join(
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', '
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)}), locales must be valid locale tags provided as strings e.g. "en-US".\n` +
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`See here for list of valid language sub-tags: http://www.iana.org/assignments/language-subtag-registry/language-subtag-registry`
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)
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}
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if (!i18n.locales.includes(i18n.defaultLocale)) {
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throw new Error(
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`Specified i18n.defaultLocale should be included in i18n.locales.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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// make sure default Locale is at the front
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i18n.locales = [
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i18n.defaultLocale,
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...i18n.locales.filter((locale) => locale !== i18n.defaultLocale),
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]
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|
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const localeDetectionType = typeof i18n.localeDetection
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if (
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localeDetectionType !== 'boolean' &&
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localeDetectionType !== 'undefined'
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) {
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throw new Error(
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`Specified i18n.localeDetection should be undefined or a boolean received ${localeDetectionType}.\nSee more info here: https://nextjs.org/docs/messages/invalid-i18n-config`
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)
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}
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}
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return result
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}
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|
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export default async function loadConfig(
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phase: string,
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dir: string,
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customConfig?: object | null
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): Promise<NextConfigComplete> {
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await loadEnvConfig(dir, phase === PHASE_DEVELOPMENT_SERVER, Log)
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await loadWebpackHook(phase, dir)
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|
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if (customConfig) {
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return assignDefaults({
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configOrigin: 'server',
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...customConfig,
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}) as NextConfigComplete
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}
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|
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const path = await findUp(CONFIG_FILE, { cwd: dir })
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|
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// If config file was found
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|
if (path?.length) {
|
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let userConfigModule: any
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|
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try {
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userConfigModule = require(path)
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} catch (err) {
|
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console.error(
|
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chalk.red('Error:') +
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' failed to load next.config.js, see more info here https://nextjs.org/docs/messages/next-config-error'
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)
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throw err
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}
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const userConfig = normalizeConfig(
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phase,
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userConfigModule.default || userConfigModule
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)
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|
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if (Object.keys(userConfig).length === 0) {
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Log.warn(
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'Detected next.config.js, no exported configuration found. https://nextjs.org/docs/messages/empty-configuration'
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)
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}
|
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|
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if (userConfig.target && !targets.includes(userConfig.target)) {
|
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throw new Error(
|
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`Specified target is invalid. Provided: "${
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userConfig.target
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}" should be one of ${targets.join(', ')}`
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)
|
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}
|
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|
|
if (userConfig.amp?.canonicalBase) {
|
|
const { canonicalBase } = userConfig.amp || ({} as any)
|
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userConfig.amp = userConfig.amp || {}
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userConfig.amp.canonicalBase =
|
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(canonicalBase.endsWith('/')
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? canonicalBase.slice(0, -1)
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: canonicalBase) || ''
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}
|
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|
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if (process.env.NEXT_PRIVATE_TARGET || hasNextSupport) {
|
|
userConfig.target = process.env.NEXT_PRIVATE_TARGET || 'server'
|
|
}
|
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|
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return assignDefaults({
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configOrigin: CONFIG_FILE,
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configFile: path,
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...userConfig,
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}) as NextConfigComplete
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|
} else {
|
|
const configBaseName = basename(CONFIG_FILE, extname(CONFIG_FILE))
|
|
const nonJsPath = findUp.sync(
|
|
[
|
|
`${configBaseName}.jsx`,
|
|
`${configBaseName}.ts`,
|
|
`${configBaseName}.tsx`,
|
|
`${configBaseName}.json`,
|
|
],
|
|
{ cwd: dir }
|
|
)
|
|
if (nonJsPath?.length) {
|
|
throw new Error(
|
|
`Configuring Next.js via '${basename(
|
|
nonJsPath
|
|
)}' is not supported. Please replace the file with 'next.config.js'.`
|
|
)
|
|
}
|
|
}
|
|
|
|
const completeConfig = defaultConfig as NextConfigComplete
|
|
setHttpAgentOptions(completeConfig.httpAgentOptions)
|
|
return completeConfig
|
|
}
|
|
|
|
export function isTargetLikeServerless(target: string) {
|
|
const isServerless = target === 'serverless'
|
|
const isServerlessTrace = target === 'experimental-serverless-trace'
|
|
return isServerless || isServerlessTrace
|
|
}
|
|
|
|
export function setHttpAgentOptions(
|
|
options: NextConfigComplete['httpAgentOptions']
|
|
) {
|
|
if ((global as any).__NEXT_HTTP_AGENT) {
|
|
// We only need to assign once because we want
|
|
// to resuse the same agent for all requests.
|
|
return
|
|
}
|
|
|
|
if (!options) {
|
|
throw new Error('Expected config.httpAgentOptions to be an object')
|
|
}
|
|
|
|
;(global as any).__NEXT_HTTP_AGENT = new HttpAgent(options)
|
|
;(global as any).__NEXT_HTTPS_AGENT = new HttpsAgent(options)
|
|
}
|