firebase · jamesdaniels · Oct 31, 2022 · Oct 26, 2022 · Oct 26, 2022 · Oct 26, 2022
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,8 @@
 - Releases RTDB Emulator v4.11.0: Wire protocol update for `startAfter`, `endBefore`.
 - Changes `superstatic` dependency to `v8`, addressing Hosting emulator issues on Windows.
 - Fixes internal library that was not being correctly published.
+- Add support for Next.js 13 in firebase deploy.
+- Next.js routes with revalidate are now handled by the a backing Cloud Function.
 - Adds `--disable-triggers` flag to RTDB write commands.
 - Default enables experiment to skip deploying unmodified functions (#5192)
 - Default enables experiment to allow parameterized functions codebases (#5192)
diff --git a/scripts/webframeworks-deploy-tests/hosting/.gitignore b/scripts/webframeworks-deploy-tests/hosting/.gitignore
@@ -34,3 +34,5 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+
+.vscode
diff --git a/scripts/webframeworks-deploy-tests/hosting/app/bar/page.tsx b/scripts/webframeworks-deploy-tests/hosting/app/bar/page.tsx
@@ -0,0 +1,5 @@
+export const revalidate = 60;
+
+export default function Bar() {
+    return <>Bar</>;
+}
diff --git a/scripts/webframeworks-deploy-tests/hosting/app/foo/page.tsx b/scripts/webframeworks-deploy-tests/hosting/app/foo/page.tsx
@@ -0,0 +1,3 @@
+export default function Foo() {
+    return <>Foo</>;
+}
diff --git a/scripts/webframeworks-deploy-tests/hosting/app/layout.tsx b/scripts/webframeworks-deploy-tests/hosting/app/layout.tsx
@@ -0,0 +1,8 @@
+export default function RootLayout({ children }: any) {
+    return (
+      <html>
+        <head></head>
+        <body>{children}</body>
+      </html>
+    )
+}
diff --git a/scripts/webframeworks-deploy-tests/hosting/next.config.js b/scripts/webframeworks-deploy-tests/hosting/next.config.js
@@ -2,6 +2,9 @@
 const nextConfig = {
   reactStrictMode: true,
   swcMinify: true,
+  experimental: {
+    appDir: true
+  },
 }
 
 module.exports = nextConfig
diff --git a/scripts/webframeworks-deploy-tests/hosting/package-lock.json b/scripts/webframeworks-deploy-tests/hosting/package-lock.json
diff --git a/scripts/webframeworks-deploy-tests/hosting/package.json b/scripts/webframeworks-deploy-tests/hosting/package.json
@@ -9,7 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "next": "12.3.1",
+    "next": "13.0.0",
     "react": "18.2.0",
     "react-dom": "18.2.0"
   },

diff --git a/scripts/webframeworks-deploy-tests/hosting/tsconfig.json b/scripts/webframeworks-deploy-tests/hosting/tsconfig.json
@@ -1,7 +1,11 @@
 {
   "compilerOptions": {
     "target": "es5",
-    "lib": ["dom", "dom.iterable", "esnext"],
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
     "allowJs": true,
     "skipLibCheck": true,
     "strict": true,
@@ -13,8 +17,20 @@
     "resolveJsonModule": true,
     "isolatedModules": true,
     "jsx": "preserve",
-    "incremental": true
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ]
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
-  "exclude": ["node_modules"]
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
 }
diff --git a/scripts/webframeworks-deploy-tests/tests.ts b/scripts/webframeworks-deploy-tests/tests.ts
@@ -45,7 +45,7 @@ describe("webframeworks deploy", function (this) {
     const result = await setOptsAndDeploy();
 
     expect(result.stdout, "deploy result").to.match(/file upload complete/);
-    expect(result.stdout, "deploy result").to.match(/found 16 files/);
+    expect(result.stdout, "deploy result").to.match(/found 20 files/);
     expect(result.stdout, "deploy result").to.match(/Deploy complete!/);
   });
 });
diff --git a/src/frameworks/next/index.ts b/src/frameworks/next/index.ts
@@ -1,11 +1,12 @@
 import { execSync } from "child_process";
-import { readFile, mkdir, copyFile, stat } from "fs/promises";
-import { dirname, extname, join } from "path";
+import { readFile, mkdir, copyFile } from "fs/promises";
+import { dirname, join } from "path";
 import type { Header, Rewrite, Redirect } from "next/dist/lib/load-custom-routes";
 import type { NextConfig } from "next";
 import { copy, mkdirp, pathExists } from "fs-extra";
 import { pathToFileURL, parse } from "url";
 import { existsSync } from "fs";
+
 import {
   BuildResult,
   createServerResponseProxy,
@@ -20,6 +21,7 @@ import { gte } from "semver";
 import { IncomingMessage, ServerResponse } from "http";
 import { logger } from "../../logger";
 import { FirebaseError } from "../../error";
+import { fileExistsSync } from "../../fsutils";
 
 // Next.js's exposed interface is incomplete here
 // TODO see if there's a better way to grab this
@@ -47,10 +49,14 @@ export const name = "Next.js";
 export const support = SupportLevel.Experimental;
 export const type = FrameworkType.MetaFramework;
 
-function getNextVersion(cwd: string) {
+function getNextVersion(cwd: string): string | undefined {
   return findDependency("next", { cwd, depth: 0, omitDev: false })?.version;
 }
 
+function getReactVersion(cwd: string): string | undefined {
+  return findDependency("react-dom", { cwd, omitDev: false })?.version;
+}
+
 /**
  * Returns whether this codebase is a Next.js backend.
  */
@@ -67,6 +73,12 @@ export async function discover(dir: string) {
 export async function build(dir: string): Promise<BuildResult> {
   const { default: nextBuild } = relativeRequire(dir, "next/dist/build");
 
+  const reactVersion = getReactVersion(dir);
+  if (reactVersion && gte(reactVersion, "18.0.0")) {
+    // This needs to be set for Next build to succeed with React 18
+    process.env.__NEXT_REACT_ROOT = "true";
+  }
+
   await nextBuild(dir, null, false, false, true).catch((e) => {
     // Err on the side of displaying this error, since this is likely a bug in
     // the developer's code that we want to display immediately
@@ -89,6 +101,10 @@ export async function build(dir: string): Promise<BuildResult> {
   const exportDetailBuffer = exportDetailExists ? await readFile(exportDetailPath) : undefined;
   const exportDetailJson = exportDetailBuffer && JSON.parse(exportDetailBuffer.toString());
   if (exportDetailJson?.success) {
+    const appPathRoutesManifestPath = join(dir, distDir, "app-path-routes-manifest.json");
+    const appPathRoutesManifestJSON = fileExistsSync(appPathRoutesManifestPath)
+      ? await readFile(appPathRoutesManifestPath).then((it) => JSON.parse(it.toString()))
+      : {};
     const prerenderManifestJSON = await readFile(
       join(dir, distDir, "prerender-manifest.json")
     ).then((it) => JSON.parse(it.toString()));
@@ -100,10 +116,15 @@ export async function build(dir: string): Promise<BuildResult> {
     ).then((it) => JSON.parse(it.toString()));
     const prerenderedRoutes = Object.keys(prerenderManifestJSON.routes);
     const dynamicRoutes = Object.keys(prerenderManifestJSON.dynamicRoutes);
-    const unrenderedPages = Object.keys(pagesManifestJSON).filter(
+    const unrenderedPages = [
+      ...Object.keys(pagesManifestJSON),
+      // TODO flush out fully rendered detection with a app directory (Next 13)
+      // we shouldn't go too crazy here yet, as this is currently an expiriment
+      ...Object.values<string>(appPathRoutesManifestJSON),
+    ].filter(
       (it) =>
         !(
-          ["/_app", "/_error", "/_document", "/404"].includes(it) ||
+          ["/_app", "/", "/_error", "/_document", "/404"].includes(it) ||
           prerenderedRoutes.includes(it) ||
           dynamicRoutes.includes(it)
         )
@@ -150,7 +171,7 @@ export async function init(setup: any) {
     choices: ["JavaScript", "TypeScript"],
   });
   execSync(
-    `npx --yes create-next-app@latest -e hello-world ${setup.hosting.source} ${
+    `npx --yes create-next-app@latest -e hello-world ${setup.hosting.source} --use-npm ${
       language === "TypeScript" ? "--ts" : ""
     }`,
     { stdio: "inherit" }
@@ -176,42 +197,64 @@ export async function ɵcodegenPublicDirectory(sourceDir: string, destDir: strin
     }
     await copy(join(sourceDir, distDir, "static"), join(destDir, "_next", "static"));
 
-    const serverPagesDir = join(sourceDir, distDir, "server", "pages");
-    await copy(serverPagesDir, destDir, {
-      filter: async (filename) => {
-        const status = await stat(filename);
-        if (status.isDirectory()) return true;
-        return extname(filename) === ".html";
-      },
-    });
+    // Copy over the default html files
+    for (const file of ["index.html", "404.html", "500.html"]) {
+      const pagesPath = join(sourceDir, distDir, "server", "pages", file);
+      if (await pathExists(pagesPath)) {
+        await copyFile(pagesPath, join(destDir, file));
+        continue;
+      }
+      const appPath = join(sourceDir, distDir, "server", "app", file);
+      if (await pathExists(appPath)) {
+        await copyFile(appPath, join(destDir, file));
+      }
+    }
 
     const prerenderManifestBuffer = await readFile(
       join(sourceDir, distDir, "prerender-manifest.json")
     );
     const prerenderManifest = JSON.parse(prerenderManifestBuffer.toString());
-    // TODO drop from hosting if revalidate
-    for (const route in prerenderManifest.routes) {
-      if (prerenderManifest.routes[route]) {
+    for (const path in prerenderManifest.routes) {
+      if (prerenderManifest.routes[path]) {
+        // Skip ISR in the deploy to hosting
+        const { initialRevalidateSeconds } = prerenderManifest.routes[path];
+        if (initialRevalidateSeconds) {
+          continue;
+        }
+
+        // TODO(jamesdaniels) explore oppertunity to simplify this now that we
+        //                    are defaulting cleanURLs to true for frameworks
+
         // / => index.json => index.html => index.html
         // /foo => foo.json => foo.html
-        const parts = route
+        const parts = path
           .split("/")
           .slice(1)
           .filter((it) => !!it);
         const partsOrIndex = parts.length > 0 ? parts : ["index"];
         const dataPath = `${join(...partsOrIndex)}.json`;
         const htmlPath = `${join(...partsOrIndex)}.html`;
         await mkdir(join(destDir, dirname(htmlPath)), { recursive: true });
-        await copyFile(
-          join(sourceDir, distDir, "server", "pages", htmlPath),
-          join(destDir, htmlPath)
-        );
-        const dataRoute = prerenderManifest.routes[route].dataRoute;
+        const pagesHtmlPath = join(sourceDir, distDir, "server", "pages", htmlPath);
+        if (await pathExists(pagesHtmlPath)) {
+          await copyFile(pagesHtmlPath, join(destDir, htmlPath));
+        } else {
+          const appHtmlPath = join(sourceDir, distDir, "server", "app", htmlPath);
+          if (await pathExists(appHtmlPath)) {
+            await copyFile(appHtmlPath, join(destDir, htmlPath));
+          }
+        }
+        const dataRoute = prerenderManifest.routes[path].dataRoute;
         await mkdir(join(destDir, dirname(dataRoute)), { recursive: true });
-        await copyFile(
-          join(sourceDir, distDir, "server", "pages", dataPath),
-          join(destDir, dataRoute)
-        );
+        const pagesDataPath = join(sourceDir, distDir, "server", "pages", dataPath);
+        if (await pathExists(pagesDataPath)) {
+          await copyFile(pagesDataPath, join(destDir, dataRoute));
+        } else {
+          const appDataPath = join(sourceDir, distDir, "server", "app", dataPath);
+          if (await pathExists(appDataPath)) {
+            await copyFile(appDataPath, join(destDir, dataRoute));
+          }
+        }
       }
     }
   }