From a0b2c4b5e815b09c8c699cab794d6e09bed85f3c Mon Sep 17 00:00:00 2001
From: Jiachi Liu <inbox@huozhi.im>
Date: Fri, 21 Jan 2022 16:27:45 +0100
Subject: [PATCH] Simplify getMiddlewareInfo calls

---
 packages/next/server/base-server.ts | 30 ++++++---------------------
 packages/next/server/next-server.ts | 32 +++++++++++++++++------------
 2 files changed, 25 insertions(+), 37 deletions(-)

diff --git a/packages/next/server/base-server.ts b/packages/next/server/base-server.ts
index e2280e87f4b6c..5117fa5a91ef1 100644
--- a/packages/next/server/base-server.ts
+++ b/packages/next/server/base-server.ts
@@ -26,7 +26,6 @@ import { parse as parseQs, stringify as stringifyQs } from 'querystring'
 import { format as formatUrl, parse as parseUrl } from 'url'
 import { getRedirectStatus, modifyRouteRegex } from '../lib/load-custom-routes'
 import {
-  CLIENT_PUBLIC_FILES_PATH,
   PRERENDER_MANIFEST,
   ROUTES_MANIFEST,
   SERVERLESS_DIRECTORY,
@@ -139,9 +138,7 @@ export default abstract class Server {
   protected nextConfig: NextConfigComplete
   protected distDir: string
   protected pagesDir?: string
-  protected publicDir: string
   protected hasStaticDir: boolean
-  protected serverBuildDir: string
   protected pagesManifest?: PagesManifest
   protected buildId: string
   protected minimalMode: boolean
@@ -204,12 +201,11 @@ export default abstract class Server {
     query?: NextParsedUrlQuery,
     params?: Params | null
   ): Promise<FindComponentsResult | null>
-  protected abstract getMiddlewareInfo(params: {
-    dev?: boolean
-    distDir: string
-    page: string
-    serverless: boolean
-  }): { name: string; paths: string[]; env: string[] }
+  protected abstract getMiddlewareInfo(page: string): {
+    name: string
+    paths: string[]
+    env: string[]
+  }
   protected abstract getPagePath(pathname: string, locales?: string[]): string
   protected abstract getFontManifest(): FontManifest | undefined
   protected abstract getMiddlewareManifest(): MiddlewareManifest | undefined
@@ -294,9 +290,7 @@ export default abstract class Server {
     this.nextConfig = conf as NextConfigComplete
     this.hostname = hostname
     this.port = port
-
     this.distDir = join(this.dir, this.nextConfig.distDir)
-    this.publicDir = join(this.dir, CLIENT_PUBLIC_FILES_PATH)
     this.hasStaticDir = !minimalMode && this.getHasStaticDir()
 
     // Only serverRuntimeConfig needs the default
@@ -351,11 +345,6 @@ export default abstract class Server {
       publicRuntimeConfig,
     })
 
-    this.serverBuildDir = join(
-      this.distDir,
-      this._isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY
-    )
-
     this.pagesManifest = this.getPagesManifest()
     this.middlewareManifest = this.getMiddlewareManifest()
 
@@ -659,14 +648,7 @@ export default abstract class Server {
     _isSSR?: boolean
   ): Promise<boolean> {
     try {
-      return (
-        this.getMiddlewareInfo({
-          dev: this.renderOpts.dev,
-          distDir: this.distDir,
-          page: pathname,
-          serverless: this._isLikeServerless,
-        }).paths.length > 0
-      )
+      return this.getMiddlewareInfo(pathname).paths.length > 0
     } catch (_) {}
 
     return false
diff --git a/packages/next/server/next-server.ts b/packages/next/server/next-server.ts
index 4bcc035503841..b052f7833b26d 100644
--- a/packages/next/server/next-server.ts
+++ b/packages/next/server/next-server.ts
@@ -24,6 +24,8 @@ import {
   MIDDLEWARE_MANIFEST,
   CLIENT_STATIC_FILES_PATH,
   CLIENT_STATIC_FILES_RUNTIME,
+  CLIENT_PUBLIC_FILES_PATH,
+  SERVERLESS_DIRECTORY,
 } from '../shared/lib/constants'
 import { PagesManifest } from '../build/webpack/plugins/pages-manifest-plugin'
 import { recursiveReadDirSync } from './lib/recursive-readdir-sync'
@@ -84,6 +86,9 @@ export interface NodeRequestHandler {
 }
 
 export default class NextNodeServer extends BaseServer {
+  protected publicDir: string
+  protected serverBuildDir: string
+
   constructor(options: Options) {
     super(options)
     /**
@@ -101,6 +106,12 @@ export default class NextNodeServer extends BaseServer {
     if (this.renderOpts.optimizeCss) {
       process.env.__NEXT_OPTIMIZE_CSS = JSON.stringify(true)
     }
+
+    this.publicDir = join(this.dir, CLIENT_PUBLIC_FILES_PATH)
+    this.serverBuildDir = join(
+      this.distDir,
+      this._isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY
+    )
   }
 
   private compression =
@@ -759,13 +770,13 @@ export default class NextNodeServer extends BaseServer {
     return filesystemUrls.has(resolved)
   }
 
-  protected getMiddlewareInfo(params: {
-    dev?: boolean
-    distDir: string
-    page: string
-    serverless: boolean
-  }) {
-    return getMiddlewareInfo(params)
+  protected getMiddlewareInfo(page: string) {
+    return getMiddlewareInfo({
+      dev: this.renderOpts.dev,
+      page,
+      distDir: this.distDir,
+      serverless: this._isLikeServerless,
+    })
   }
 
   protected getMiddlewareManifest(): MiddlewareManifest | undefined {
@@ -1010,12 +1021,7 @@ export default class NextNodeServer extends BaseServer {
 
         await this.ensureMiddleware(middleware.page, middleware.ssr)
 
-        const middlewareInfo = this.getMiddlewareInfo({
-          dev: this.renderOpts.dev,
-          distDir: this.distDir,
-          page: middleware.page,
-          serverless: this._isLikeServerless,
-        })
+        const middlewareInfo = this.getMiddlewareInfo(middleware.page)
 
         result = await run({
           name: middlewareInfo.name,