85 lines
2.2 KiB
JavaScript
85 lines
2.2 KiB
JavaScript
import os from 'os'
|
|
import findUp from 'find-up'
|
|
import { CONFIG_FILE } from 'next-server/constants'
|
|
|
|
const targets = ['server', 'serverless']
|
|
|
|
const defaultConfig = {
|
|
env: [],
|
|
webpack: null,
|
|
webpackDevMiddleware: null,
|
|
distDir: '.next',
|
|
assetPrefix: '',
|
|
configOrigin: 'default',
|
|
useFileSystemPublicRoutes: true,
|
|
generateBuildId: () => null,
|
|
generateEtags: true,
|
|
pageExtensions: ['jsx', 'js'],
|
|
target: 'server',
|
|
poweredByHeader: true,
|
|
onDemandEntries: {
|
|
maxInactiveAge: 60 * 1000,
|
|
pagesBufferLength: 2
|
|
},
|
|
experimental: {
|
|
cpus: Math.max(
|
|
1,
|
|
(Number(process.env.CIRCLE_NODE_TOTAL) ||
|
|
(os.cpus() || { length: 1 }).length) - 1
|
|
),
|
|
ampBindInitData: false,
|
|
exportTrailingSlash: true,
|
|
terserLoader: false,
|
|
profiling: false,
|
|
flyingShuttle: false,
|
|
asyncToPromises: false
|
|
}
|
|
}
|
|
|
|
function assignDefaults (userConfig) {
|
|
Object.keys(userConfig).forEach(key => {
|
|
const maybeObject = userConfig[key]
|
|
if ((!!maybeObject) && (maybeObject.constructor === Object)) {
|
|
userConfig[key] = {
|
|
...(defaultConfig[key] || {}),
|
|
...userConfig[key]
|
|
}
|
|
}
|
|
})
|
|
|
|
return { ...defaultConfig, ...userConfig }
|
|
}
|
|
|
|
function normalizeConfig (phase, config) {
|
|
if (typeof config === 'function') {
|
|
config = config(phase, { defaultConfig })
|
|
|
|
if (typeof config.then === 'function') {
|
|
throw new Error(
|
|
'> Promise returned in next config. https://err.sh/zeit/next.js/promise-in-next-config.md'
|
|
)
|
|
}
|
|
}
|
|
return config
|
|
}
|
|
|
|
export default function loadConfig (phase, dir, customConfig) {
|
|
if (customConfig) {
|
|
return assignDefaults({ configOrigin: 'server', ...customConfig })
|
|
}
|
|
const path = findUp.sync(CONFIG_FILE, {
|
|
cwd: dir
|
|
})
|
|
|
|
// If config file was found
|
|
if (path && path.length) {
|
|
const userConfigModule = require(path)
|
|
const userConfig = normalizeConfig(phase, userConfigModule.default || userConfigModule)
|
|
if (userConfig.target && !targets.includes(userConfig.target)) {
|
|
throw new Error(`Specified target is invalid. Provided: "${userConfig.target}" should be one of ${targets.join(', ')}`)
|
|
}
|
|
return assignDefaults({ configOrigin: CONFIG_FILE, ...userConfig })
|
|
}
|
|
|
|
return defaultConfig
|
|
}
|