2b99db07f7
Replace `'client'` with `'use client'` as client directive for client components in RSC x-ref: [slack thread](https://vercel.slack.com/archives/C035J346QQL/p1665435520907559) Co-authored-by: JJ Kasper <jj@jjsweb.site>
201 lines
6.4 KiB
TypeScript
201 lines
6.4 KiB
TypeScript
import type webpack from 'webpack'
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import type { ValueOf } from '../../../shared/lib/constants'
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import { NODE_RESOLVE_OPTIONS } from '../../webpack-config'
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import { getModuleBuildInfo } from './get-module-build-info'
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export const FILE_TYPES = {
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layout: 'layout',
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template: 'template',
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error: 'error',
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loading: 'loading',
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'not-found': 'not-found',
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} as const
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// TODO-APP: check if this can be narrowed.
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type ComponentModule = () => any
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export type ComponentsType = {
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readonly [componentKey in ValueOf<typeof FILE_TYPES>]?: ComponentModule
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} & {
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readonly layoutOrPagePath?: string
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readonly page?: ComponentModule
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}
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async function createTreeCodeFromPath({
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pagePath,
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resolve,
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resolveParallelSegments,
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}: {
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pagePath: string
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resolve: (pathname: string) => Promise<string | undefined>
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resolveParallelSegments: (
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pathname: string
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) => [key: string, segment: string][]
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}) {
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const splittedPath = pagePath.split(/[\\/]/)
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const appDirPrefix = splittedPath[0]
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async function createSubtreePropsFromSegmentPath(
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segments: string[]
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): Promise<string> {
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const segmentPath = segments.join('/')
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// Existing tree are the children of the current segment
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const props: Record<string, string> = {}
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// We need to resolve all parallel routes in this level.
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const parallelSegments: [key: string, segment: string][] = []
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if (segments.length === 0) {
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parallelSegments.push(['children', ''])
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} else {
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parallelSegments.push(...resolveParallelSegments(segmentPath))
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}
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for (const [parallelKey, parallelSegment] of parallelSegments) {
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const parallelSegmentPath = segmentPath + '/' + parallelSegment
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if (parallelSegment === 'page') {
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const matchedPagePath = `${appDirPrefix}${parallelSegmentPath}`
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const resolvedPagePath = await resolve(matchedPagePath)
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// Use '' for segment as it's the page. There can't be a segment called '' so this is the safest way to add it.
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props[parallelKey] = `['', {}, {layoutOrPagePath: ${JSON.stringify(
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resolvedPagePath
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)}, page: () => require(${JSON.stringify(resolvedPagePath)})}]`
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continue
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}
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const subtree = await createSubtreePropsFromSegmentPath([
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...segments,
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parallelSegment,
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])
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// `page` is not included here as it's added above.
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const filePaths = await Promise.all(
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Object.values(FILE_TYPES).map(async (file) => {
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return [
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file,
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await resolve(`${appDirPrefix}${parallelSegmentPath}/${file}`),
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] as const
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})
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)
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props[parallelKey] = `[
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'${parallelSegment}',
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${subtree},
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{
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${filePaths
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.filter(([, filePath]) => filePath !== undefined)
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.map(([file, filePath]) => {
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if (filePath === undefined) {
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return ''
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}
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return `${
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file === FILE_TYPES.layout
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? `layoutOrPagePath: '${filePath}',`
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: ''
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}'${file}': () => require(${JSON.stringify(filePath)}),`
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})
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.join('\n')}
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}
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]`
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}
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return `{
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${Object.entries(props)
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.map(([key, value]) => `${key}: ${value}`)
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.join(',\n')}
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}`
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}
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const tree = await createSubtreePropsFromSegmentPath([])
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return `const tree = ${tree}.children;`
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}
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function createAbsolutePath(appDir: string, pathToTurnAbsolute: string) {
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return pathToTurnAbsolute.replace(/^private-next-app-dir/, appDir)
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}
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const nextAppLoader: webpack.LoaderDefinitionFunction<{
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name: string
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pagePath: string
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appDir: string
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appPaths: string[] | null
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pageExtensions: string[]
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}> = async function nextAppLoader() {
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const { name, appDir, appPaths, pagePath, pageExtensions } =
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this.getOptions() || {}
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const buildInfo = getModuleBuildInfo((this as any)._module)
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buildInfo.route = {
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page: name.replace(/^app/, ''),
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absolutePagePath: createAbsolutePath(appDir, pagePath),
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}
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const extensions = pageExtensions.map((extension) => `.${extension}`)
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const resolveOptions: any = {
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...NODE_RESOLVE_OPTIONS,
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extensions,
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}
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const resolve = this.getResolve(resolveOptions)
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const normalizedAppPaths =
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typeof appPaths === 'string' ? [appPaths] : appPaths || []
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const resolveParallelSegments = (pathname: string) => {
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const matched: Record<string, string> = {}
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for (const path of normalizedAppPaths) {
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if (path.startsWith(pathname + '/')) {
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const restPath = path.slice(pathname.length + 1)
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const matchedSegment = restPath.split('/')[0]
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const matchedKey = matchedSegment.startsWith('@')
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? matchedSegment.slice(1)
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: 'children'
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matched[matchedKey] = matchedSegment
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}
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}
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return Object.entries(matched)
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}
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const resolver = async (pathname: string) => {
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try {
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const resolved = await resolve(this.rootContext, pathname)
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this.addDependency(resolved)
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return resolved
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} catch (err: any) {
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const absolutePath = createAbsolutePath(appDir, pathname)
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for (const ext of extensions) {
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const absolutePathWithExtension = `${absolutePath}${ext}`
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this.addMissingDependency(absolutePathWithExtension)
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}
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if (err.message.includes("Can't resolve")) {
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return undefined
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}
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throw err
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}
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}
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const treeCode = await createTreeCodeFromPath({
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pagePath,
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resolve: resolver,
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resolveParallelSegments,
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})
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const result = `
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export ${treeCode}
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export const AppRouter = require('next/dist/client/components/app-router.js').default
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export const LayoutRouter = require('next/dist/client/components/layout-router.js').default
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export const RenderFromTemplateContext = require('next/dist/client/components/render-from-template-context.js').default
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export const staticGenerationAsyncStorage = require('next/dist/client/components/static-generation-async-storage.js').staticGenerationAsyncStorage
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export const requestAsyncStorage = require('next/dist/client/components/request-async-storage.js').requestAsyncStorage
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export const serverHooks = require('next/dist/client/components/hooks-server-context.js')
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export const renderToReadableStream = require('next/dist/compiled/react-server-dom-webpack/writer.browser.server').renderToReadableStream
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export const __next_app_webpack_require__ = __webpack_require__
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`
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return result
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}
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export default nextAppLoader
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