/
entries.ts
181 lines (162 loc) · 5.58 KB
/
entries.ts
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import chalk from 'chalk'
import { posix, join } from 'path'
import { stringify } from 'querystring'
import { API_ROUTE, DOT_NEXT_ALIAS, PAGES_DIR_ALIAS } from '../lib/constants'
import { __ApiPreviewProps } from '../server/api-utils'
import { isTargetLikeServerless } from '../server/config'
import { normalizePagePath } from '../server/normalize-page-path'
import { warn } from './output/log'
import { ClientPagesLoaderOptions } from './webpack/loaders/next-client-pages-loader'
import { ServerlessLoaderQuery } from './webpack/loaders/next-serverless-loader'
import { LoadedEnvFiles } from '@next/env'
import { NextConfigComplete } from '../server/config-shared'
type PagesMapping = {
[page: string]: string
}
export function createPagesMapping(
pagePaths: string[],
extensions: string[],
isWebpack5: boolean,
isDev: boolean
): PagesMapping {
const previousPages: PagesMapping = {}
const pages: PagesMapping = pagePaths.reduce(
(result: PagesMapping, pagePath): PagesMapping => {
let page = `${pagePath
.replace(new RegExp(`\\.+(${extensions.join('|')})$`), '')
.replace(/\\/g, '/')}`.replace(/\/index$/, '')
const pageKey = page === '' ? '/' : page
if (pageKey in result) {
warn(
`Duplicate page detected. ${chalk.cyan(
join('pages', previousPages[pageKey])
)} and ${chalk.cyan(
join('pages', pagePath)
)} both resolve to ${chalk.cyan(pageKey)}.`
)
} else {
previousPages[pageKey] = pagePath
}
result[pageKey] = join(PAGES_DIR_ALIAS, pagePath).replace(/\\/g, '/')
return result
},
{}
)
// we alias these in development and allow webpack to
// allow falling back to the correct source file so
// that HMR can work properly when a file is added/removed
if (isWebpack5 && isDev) {
pages['/_app'] = `${PAGES_DIR_ALIAS}/_app`
pages['/_error'] = `${PAGES_DIR_ALIAS}/_error`
pages['/_document'] = `${PAGES_DIR_ALIAS}/_document`
} else {
pages['/_app'] = pages['/_app'] || 'next/dist/pages/_app'
pages['/_error'] = pages['/_error'] || 'next/dist/pages/_error'
pages['/_document'] = pages['/_document'] || 'next/dist/pages/_document'
}
return pages
}
export type WebpackEntrypoints = {
[bundle: string]:
| string
| string[]
| {
import: string | string[]
dependOn?: string | string[]
}
}
type Entrypoints = {
client: WebpackEntrypoints
server: WebpackEntrypoints
}
export function createEntrypoints(
pages: PagesMapping,
target: 'server' | 'serverless' | 'experimental-serverless-trace',
buildId: string,
previewMode: __ApiPreviewProps,
config: NextConfigComplete,
loadedEnvFiles: LoadedEnvFiles
): Entrypoints {
const client: WebpackEntrypoints = {}
const server: WebpackEntrypoints = {}
const hasRuntimeConfig =
Object.keys(config.publicRuntimeConfig).length > 0 ||
Object.keys(config.serverRuntimeConfig).length > 0
const defaultServerlessOptions = {
absoluteAppPath: pages['/_app'],
absoluteDocumentPath: pages['/_document'],
absoluteErrorPath: pages['/_error'],
absolute404Path: pages['/404'] || '',
distDir: DOT_NEXT_ALIAS,
buildId,
assetPrefix: config.assetPrefix,
generateEtags: config.generateEtags ? 'true' : '',
poweredByHeader: config.poweredByHeader ? 'true' : '',
canonicalBase: config.amp.canonicalBase || '',
basePath: config.basePath,
runtimeConfig: hasRuntimeConfig
? JSON.stringify({
publicRuntimeConfig: config.publicRuntimeConfig,
serverRuntimeConfig: config.serverRuntimeConfig,
})
: '',
previewProps: JSON.stringify(previewMode),
// base64 encode to make sure contents don't break webpack URL loading
loadedEnvFiles: Buffer.from(JSON.stringify(loadedEnvFiles)).toString(
'base64'
),
i18n: config.i18n ? JSON.stringify(config.i18n) : '',
}
Object.keys(pages).forEach((page) => {
const absolutePagePath = pages[page]
const bundleFile = normalizePagePath(page)
const isApiRoute = page.match(API_ROUTE)
const clientBundlePath = posix.join('pages', bundleFile)
const serverBundlePath = posix.join('pages', bundleFile)
const isLikeServerless = isTargetLikeServerless(target)
if (isApiRoute && isLikeServerless) {
const serverlessLoaderOptions: ServerlessLoaderQuery = {
page,
absolutePagePath,
...defaultServerlessOptions,
}
server[serverBundlePath] = `next-serverless-loader?${stringify(
serverlessLoaderOptions
)}!`
} else if (isApiRoute || target === 'server') {
server[serverBundlePath] = [absolutePagePath]
} else if (isLikeServerless && page !== '/_app' && page !== '/_document') {
const serverlessLoaderOptions: ServerlessLoaderQuery = {
page,
absolutePagePath,
...defaultServerlessOptions,
}
server[serverBundlePath] = `next-serverless-loader?${stringify(
serverlessLoaderOptions
)}!`
}
if (page === '/_document') {
return
}
if (!isApiRoute) {
const pageLoaderOpts: ClientPagesLoaderOptions = {
page,
absolutePagePath,
}
const pageLoader = `next-client-pages-loader?${stringify(
pageLoaderOpts
)}!`
// Make sure next/router is a dependency of _app or else chunk splitting
// might cause the router to not be able to load causing hydration
// to fail
client[clientBundlePath] =
page === '/_app'
? [pageLoader, require.resolve('../client/router')]
: pageLoader
}
})
return {
client,
server,
}
}