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/
config-shared.ts
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/
config-shared.ts
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import os from 'os'
import type { webpack5 } from 'next/dist/compiled/webpack/webpack'
import { Header, Redirect, Rewrite } from '../lib/load-custom-routes'
import {
ImageConfig,
ImageConfigComplete,
imageConfigDefault,
} from './image-config'
export type NextConfigComplete = Required<NextConfig> & {
images: ImageConfigComplete
typescript: Required<TypeScriptConfig>
configOrigin?: string
configFile?: string
configFileName: string
}
export interface I18NConfig {
defaultLocale: string
domains?: DomainLocale[]
localeDetection?: false
locales: string[]
}
export interface DomainLocale {
defaultLocale: string
domain: string
http?: true
locales?: string[]
}
export interface ESLintConfig {
/** Only run ESLint on these directories with `next lint` and `next build`. */
dirs?: string[]
/** Do not run ESLint during production builds (`next build`). */
ignoreDuringBuilds?: boolean
}
export interface TypeScriptConfig {
/** Do not run TypeScript during production builds (`next build`). */
ignoreBuildErrors?: boolean
/** Relative path to a custom tsconfig file */
tsconfigPath?: string
}
export type NextConfig = { [key: string]: any } & {
i18n?: I18NConfig | null
eslint?: ESLintConfig
typescript?: TypeScriptConfig
headers?: () => Promise<Header[]>
rewrites?: () => Promise<
| Rewrite[]
| {
beforeFiles: Rewrite[]
afterFiles: Rewrite[]
fallback: Rewrite[]
}
>
redirects?: () => Promise<Redirect[]>
webpack5?: false
excludeDefaultMomentLocales?: boolean
webpack?:
| ((
config: any,
context: {
dir: string
dev: boolean
isServer: boolean
buildId: string
config: NextConfigComplete
defaultLoaders: { babel: any }
totalPages: number
webpack: any
}
) => any)
| null
trailingSlash?: boolean
env?: { [key: string]: string }
distDir?: string
cleanDistDir?: boolean
assetPrefix?: string
useFileSystemPublicRoutes?: boolean
generateBuildId?: () => string | null | Promise<string | null>
generateEtags?: boolean
pageExtensions?: string[]
compress?: boolean
poweredByHeader?: boolean
images?: ImageConfig
devIndicators?: {
buildActivity?: boolean
buildActivityPosition?:
| 'bottom-right'
| 'bottom-left'
| 'top-right'
| 'top-left'
}
onDemandEntries?: {
maxInactiveAge?: number
pagesBufferLength?: number
}
amp?: {
canonicalBase?: string
}
basePath?: string
sassOptions?: { [key: string]: any }
productionBrowserSourceMaps?: boolean
optimizeFonts?: boolean
reactStrictMode?: boolean
publicRuntimeConfig?: { [key: string]: any }
serverRuntimeConfig?: { [key: string]: any }
httpAgentOptions?: { keepAlive?: boolean }
future?: {
/**
* @deprecated this options was moved to the top level
*/
webpack5?: false
strictPostcssConfiguration?: boolean
}
outputFileTracing?: boolean
staticPageGenerationTimeout?: number
crossOrigin?: false | 'anonymous' | 'use-credentials'
swcMinify?: boolean
experimental?: {
swcMinify?: boolean
cpus?: number
sharedPool?: boolean
plugins?: boolean
profiling?: boolean
isrFlushToDisk?: boolean
reactMode?: 'legacy' | 'concurrent' | 'blocking'
workerThreads?: boolean
pageEnv?: boolean
optimizeImages?: boolean
optimizeCss?: boolean
scrollRestoration?: boolean
externalDir?: boolean
conformance?: boolean
amp?: {
optimizer?: any
validator?: string
skipValidation?: boolean
}
reactRoot?: boolean
disableOptimizedLoading?: boolean
gzipSize?: boolean
craCompat?: boolean
esmExternals?: boolean | 'loose'
isrMemoryCacheSize?: number
concurrentFeatures?: boolean
serverComponents?: boolean
fullySpecified?: boolean
urlImports?: NonNullable<webpack5.Configuration['experiments']>['buildHttp']
outputFileTracingRoot?: string
outputStandalone?: boolean
}
}
export const defaultConfig: NextConfig = {
env: {},
webpack: null,
webpackDevMiddleware: null,
eslint: {
ignoreDuringBuilds: false,
},
typescript: {
ignoreBuildErrors: false,
tsconfigPath: 'tsconfig.json',
},
distDir: '.next',
cleanDistDir: true,
assetPrefix: '',
configOrigin: 'default',
useFileSystemPublicRoutes: true,
generateBuildId: () => null,
generateEtags: true,
pageExtensions: ['tsx', 'ts', 'jsx', 'js'],
target: 'server',
poweredByHeader: true,
compress: true,
analyticsId: process.env.VERCEL_ANALYTICS_ID || '',
images: imageConfigDefault,
devIndicators: {
buildActivity: true,
buildActivityPosition: 'bottom-right',
},
onDemandEntries: {
maxInactiveAge: 15 * 1000,
pagesBufferLength: 2,
},
amp: {
canonicalBase: '',
},
basePath: '',
sassOptions: {},
trailingSlash: false,
i18n: null,
productionBrowserSourceMaps: false,
optimizeFonts: true,
webpack5: undefined,
excludeDefaultMomentLocales: true,
serverRuntimeConfig: {},
publicRuntimeConfig: {},
reactStrictMode: false,
httpAgentOptions: {
keepAlive: true,
},
outputFileTracing: true,
staticPageGenerationTimeout: 60,
swcMinify: false,
experimental: {
cpus: Math.max(
1,
(Number(process.env.CIRCLE_NODE_TOTAL) ||
(os.cpus() || { length: 1 }).length) - 1
),
sharedPool: true,
plugins: false,
profiling: false,
isrFlushToDisk: true,
workerThreads: false,
pageEnv: false,
optimizeImages: false,
optimizeCss: false,
scrollRestoration: false,
externalDir: false,
reactRoot: Number(process.env.NEXT_PRIVATE_REACT_ROOT) > 0,
disableOptimizedLoading: false,
gzipSize: true,
craCompat: false,
esmExternals: true,
// default to 50MB limit
isrMemoryCacheSize: 50 * 1024 * 1024,
concurrentFeatures: false,
serverComponents: false,
fullySpecified: false,
outputFileTracingRoot: process.env.NEXT_PRIVATE_OUTPUT_TRACE_ROOT || '',
outputStandalone: !!process.env.NEXT_PRIVATE_STANDALONE,
},
future: {
strictPostcssConfiguration: false,
},
}
export function normalizeConfig(phase: string, config: any) {
if (typeof config === 'function') {
config = config(phase, { defaultConfig })
if (typeof config.then === 'function') {
throw new Error(
'> Promise returned in next config. https://nextjs.org/docs/messages/promise-in-next-config'
)
}
}
return config
}