Rename `dist` to `server` to be more consistent (#4506)

Previously we called this directory holding the pages/chunks for server rendering `.next/dist` instead of `.next/server` which is confusing both when looking at it and in the codebase, since there's also `distDir` as a configuration option.

Also made this a constant in `next/constants` so functionality using this can be easily found.

lib/constants.js

@@ -4,3 +4,4 @@ export const PHASE_PRODUCTION_SERVER = 'phase-production-server'
 export const PHASE_DEVELOPMENT_SERVER = 'phase-development-server'
 export const PAGES_MANIFEST = 'pages-manifest.json'
 export const BUILD_MANIFEST = 'build-manifest.json'
+export const SERVER_DIRECTORY = 'server'

server/build/webpack.js

@@ -12,18 +12,11 @@ import DynamicChunksPlugin from './plugins/dynamic-chunks-plugin'
 import UnlinkFilePlugin from './plugins/unlink-file-plugin'
 import PagesManifestPlugin from './plugins/pages-manifest-plugin'
 import BuildManifestPlugin from './plugins/build-manifest-plugin'
+import {SERVER_DIRECTORY} from '../../lib/constants'
 
 const nextDir = path.join(__dirname, '..', '..', '..')
 const nextNodeModulesDir = path.join(nextDir, 'node_modules')
 const nextPagesDir = path.join(nextDir, 'pages')
-const defaultPages = [
-  '_error.js',
-  '_document.js',
-  '_app.js'
-]
-const interpolateNames = new Map(defaultPages.map((p) => {
-  return [path.join(nextPagesDir, p), `dist/bundles/pages/${p}`]
-}))
 
 function externalsConfig (dir, isServer) {
   const externals = []
@@ -98,7 +91,7 @@ export default async function getBaseWebpackConfig (dir, {dev = false, isServer
       }
     },
     output: {
-      path: path.join(dir, config.distDir, isServer ? 'dist' : ''), // server compilation goes to `.next/dist`
+      path: path.join(dir, config.distDir, isServer ? SERVER_DIRECTORY : ''),
       filename: '[name]',
       libraryTarget: 'commonjs2',
       // This saves chunks with the name given via require.ensure()
@@ -163,14 +156,6 @@ export default async function getBaseWebpackConfig (dir, {dev = false, isServer
       dev && !isServer && new webpack.HotModuleReplacementPlugin(), // Hot module replacement
       dev && new UnlinkFilePlugin(),
       dev && new CaseSensitivePathPlugin(), // Since on macOS the filesystem is case-insensitive this will make sure your path are case-sensitive
-      dev && new webpack.LoaderOptionsPlugin({
-        options: {
-          context: dir,
-          customInterpolateName (url, name, opts) {
-            return interpolateNames.get(this.resourcePath) || url
-          }
-        }
-      }),
       dev && new WriteFilePlugin({
         exitOnErrors: false,
         log: false,

server/export.js

@@ -5,7 +5,7 @@ import walk from 'walk'
 import { extname, resolve, join, dirname, sep } from 'path'
 import { existsSync, readFileSync, writeFileSync } from 'fs'
 import getConfig from './config'
-import {PHASE_EXPORT, PAGES_MANIFEST} from '../lib/constants'
+import {PHASE_EXPORT, SERVER_DIRECTORY, PAGES_MANIFEST} from '../lib/constants'
 import { renderToHTML } from './render'
 import { getAvailableChunks } from './utils'
 import { setAssetPrefix } from '../lib/asset'
@@ -23,7 +23,7 @@ export default async function (dir, options, configuration) {
   }
 
   const buildId = readFileSync(join(nextDir, 'BUILD_ID'), 'utf8')
-  const pagesManifest = require(join(nextDir, 'dist', PAGES_MANIFEST))
+  const pagesManifest = require(join(nextDir, SERVER_DIRECTORY, PAGES_MANIFEST))
 
   const pages = Object.keys(pagesManifest)
   const defaultPathMap = {}

server/render.js

@@ -11,7 +11,7 @@ import { getAvailableChunks } from './utils'
 import Head, { defaultHead } from '../lib/head'
 import ErrorDebug from '../lib/error-debug'
 import { flushChunks } from '../lib/dynamic'
-import { BUILD_MANIFEST } from '../lib/constants'
+import { BUILD_MANIFEST, SERVER_DIRECTORY } from '../lib/constants'
 import { applySourcemaps } from './lib/source-map-support'
 
 const logger = console
@@ -56,8 +56,8 @@ async function doRender (req, res, pathname, query, {
     await ensurePage(page, { dir, hotReloader })
   }
 
-  const documentPath = join(dir, dist, 'dist', 'bundles', 'pages', '_document')
-  const appPath = join(dir, dist, 'dist', 'bundles', 'pages', '_app')
+  const documentPath = join(dir, dist, SERVER_DIRECTORY, 'bundles', 'pages', '_document')
+  const appPath = join(dir, dist, SERVER_DIRECTORY, 'bundles', 'pages', '_app')
   const buildManifest = require(join(dir, dist, BUILD_MANIFEST))
   let [Component, Document, App] = await Promise.all([
     requirePage(page, {dir, dist}),

server/require.js

 import {join, posix} from 'path'
-import {PAGES_MANIFEST} from '../lib/constants'
+import {PAGES_MANIFEST, SERVER_DIRECTORY} from '../lib/constants'
 
 export function pageNotFoundError (page) {
   const err = new Error(`Cannot find module for page: ${page}`)
@@ -28,7 +28,7 @@ export function normalizePagePath (page) {
 }
 
 export function getPagePath (page, {dir, dist}) {
-  const serverBuildPath = join(dir, dist, 'dist')
+  const serverBuildPath = join(dir, dist, SERVER_DIRECTORY)
   const pagesManifest = require(join(serverBuildPath, PAGES_MANIFEST))
 
   try {

test/isolated/require-page.test.js

 /* global describe, it, expect */
 
 import { join } from 'path'
+import {SERVER_DIRECTORY} from 'next/constants'
 import requirePage, {getPagePath, normalizePagePath, pageNotFoundError} from '../../dist/server/require'
 
 const sep = '/'
-const pathToBundles = join(__dirname, '_resolvedata', 'dist', 'bundles', 'pages')
+const pathToBundles = join(__dirname, '_resolvedata', SERVER_DIRECTORY, 'bundles', 'pages')
 
 describe('pageNotFoundError', () => {
   it('Should throw error with ENOENT code', () => {