Sync with react.dev @ 0d05d9b6

.eslintrc

@@ -2,16 +2,36 @@
   "root": true,
   "extends": "next/core-web-vitals",
   "parser": "@typescript-eslint/parser",
-  "plugins": ["@typescript-eslint"],
+  "plugins": ["@typescript-eslint", "eslint-plugin-react-compiler", "local-rules"],
   "rules": {
     "no-unused-vars": "off",
-    "@typescript-eslint/no-unused-vars": ["error", { "varsIgnorePattern": "^_" }],
-    "react-hooks/exhaustive-deps": "error"
+    "@typescript-eslint/no-unused-vars": ["error", {"varsIgnorePattern": "^_"}],
+    "react-hooks/exhaustive-deps": "error",
+    "react/no-unknown-property": ["error", {"ignore": ["meta"]}],
+    "react-compiler/react-compiler": "error",
+    "local-rules/lint-markdown-code-blocks": "error"
   },
   "env": {
     "node": true,
     "commonjs": true,
     "browser": true,
     "es6": true
-  }
+  },
+  "overrides": [
+    {
+      "files": ["src/content/**/*.md"],
+      "parser": "./eslint-local-rules/parser",
+      "parserOptions": {
+        "sourceType": "module"
+      },
+      "rules": {
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-unused-vars": "off",
+        "react-hooks/exhaustive-deps": "off",
+        "react/no-unknown-property": "off",
+        "react-compiler/react-compiler": "off",
+        "local-rules/lint-markdown-code-blocks": "error"
+      }
+    }
+  ]
 }

.github/workflows/analyze.yml

@@ -7,6 +7,8 @@ on:
       - main # change this if your default branch is named differently
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   analyze:
     runs-on: ubuntu-latest
@@ -23,7 +25,7 @@ jobs:
       - name: Restore cached node_modules
         uses: actions/cache@v4
         with:
-          path: "**/node_modules"
+          path: '**/node_modules'
           key: node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
 
       - name: Install deps
@@ -55,7 +57,7 @@ jobs:
           name: bundle_analysis.json
 
       - name: Download base branch bundle stats
-        uses: dawidd6/action-download-artifact@v2
+        uses: dawidd6/action-download-artifact@268677152d06ba59fcec7a7f0b5d961b6ccd7e1e
         if: success() && github.event.number
         with:
           workflow: analyze.yml

.github/workflows/analyze_comment.yml

@@ -2,10 +2,15 @@ name: Analyze Bundle (Comment)
 
 on:
   workflow_run:
-    workflows: ["Analyze Bundle"]
+    workflows: ['Analyze Bundle']
     types:
       - completed
 
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
 jobs:
   comment:
     runs-on: ubuntu-latest
@@ -14,15 +19,15 @@ jobs:
       github.event.workflow_run.conclusion == 'success' }}
     steps:
       - name: Download base branch bundle stats
-        uses: dawidd6/action-download-artifact@v2
+        uses: dawidd6/action-download-artifact@268677152d06ba59fcec7a7f0b5d961b6ccd7e1e
         with:
           workflow: analyze.yml
           run_id: ${{ github.event.workflow_run.id }}
           name: analysis_comment.txt
           path: analysis_comment.txt
 
       - name: Download PR number
-        uses: dawidd6/action-download-artifact@v2
+        uses: dawidd6/action-download-artifact@268677152d06ba59fcec7a7f0b5d961b6ccd7e1e
         with:
           workflow: analyze.yml
           run_id: ${{ github.event.workflow_run.id }}
@@ -48,7 +53,7 @@ jobs:
           echo "pr-number=$pr_number" >> $GITHUB_OUTPUT
 
       - name: Comment
-        uses: marocchino/sticky-pull-request-comment@v2
+        uses: marocchino/sticky-pull-request-comment@52423e01640425a022ef5fd42c6fb5f633a02728
         with:
           header: next-bundle-analysis
           number: ${{ steps.get-comment-body.outputs.pr-number }}

.github/workflows/discord_notify.yml

@@ -0,0 +1,32 @@
+name: Discord Notify
+
+on:
+  pull_request_target:
+    types: [opened, ready_for_review]
+
+permissions: {}
+
+jobs:
+  check_maintainer:
+    uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main
+    permissions:
+      # Used by check_maintainer
+      contents: read
+    with:
+      actor: ${{ github.event.pull_request.user.login }}
+
+  notify:
+    if: ${{ needs.check_maintainer.outputs.is_core_team == 'true' }}
+    needs: check_maintainer
+    runs-on: ubuntu-latest
+    steps:
+      - name: Discord Webhook Action
+        uses: tsickert/[email protected]
+        with:
+          webhook-url: ${{ secrets.DISCORD_WEBHOOK_URL }}
+          embed-author-name: ${{ github.event.pull_request.user.login }}
+          embed-author-url: ${{ github.event.pull_request.user.html_url }}
+          embed-author-icon-url: ${{ github.event.pull_request.user.avatar_url }}
+          embed-title: '#${{ github.event.number }} (+${{github.event.pull_request.additions}} -${{github.event.pull_request.deletions}}): ${{ github.event.pull_request.title }}'
+          embed-description: ${{ github.event.pull_request.body }}
+          embed-url: ${{ github.event.pull_request.html_url }}

.github/workflows/label_core_team_prs.yml

@@ -0,0 +1,41 @@
+name: Label Core Team PRs
+
+on:
+  pull_request_target:
+
+permissions: {}
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
+
+jobs:
+  check_maintainer:
+    uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main
+    permissions:
+      # Used by check_maintainer
+      contents: read
+    with:
+      actor: ${{ github.event.pull_request.user.login }}
+
+  label:
+    if: ${{ needs.check_maintainer.outputs.is_core_team == 'true' }}
+    runs-on: ubuntu-latest
+    needs: check_maintainer
+    permissions:
+      # Used to add labels on issues
+      issues: write
+      # Used to add labels on PRs
+      pull-requests: write
+    steps:
+      - name: Label PR as React Core Team
+        uses: actions/github-script@v7
+        with:
+          script: |
+            github.rest.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: ${{ github.event.number }},
+              labels: ['React Core Team']
+            });

.github/workflows/site_lint.yml

@@ -7,6 +7,8 @@ on:
   pull_request:
     types: [opened, synchronize, reopened]
 
+permissions: {}
+
 jobs:
   lint:
     runs-on: ubuntu-latest
@@ -25,7 +27,7 @@ jobs:
       - name: Restore cached node_modules
         uses: actions/cache@v4
         with:
-          path: "**/node_modules"
+          path: '**/node_modules'
           key: node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
 
       - name: Install deps

.gitignore

@@ -1,7 +1,7 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
 # dependencies
-/node_modules
+node_modules
 /.pnp
 .pnp.js
 

README.md

@@ -7,7 +7,7 @@ This repo contains the source code and documentation powering [react.dev](https:
 ### Prerequisites
 
 1. Git
-1. Node: any 12.x version starting with v12.0.0 or greater
+1. Node: any version starting with v16.8.0 or greater
 1. Yarn: See [Yarn website for installation instructions](https://yarnpkg.com/lang/en/docs/install/)
 1. A fork of the repo (for any contributions)
 1. A clone of the [react.dev repo](https://github.com/reactjs/react.dev) on your local machine

colors.js

@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */

eslint-local-rules/__tests__/fixtures/src/content/basic-error.md

@@ -0,0 +1,8 @@
+```jsx
+import {useState} from 'react';
+function Counter() {
+  const [count, setCount] = useState(0);
+  setCount(count + 1);
+  return <div>{count}</div>;
+}
+```

eslint-local-rules/__tests__/fixtures/src/content/duplicate-metadata.md

@@ -0,0 +1,8 @@
+```jsx title="Counter" {expectedErrors: {'react-compiler': [99]}} {expectedErrors: {'react-compiler': [2]}}
+import {useState} from 'react';
+function Counter() {
+  const [count, setCount] = useState(0);
+  setCount(count + 1);
+  return <div>{count}</div>;
+}
+```

eslint-local-rules/__tests__/fixtures/src/content/malformed-metadata.md

@@ -0,0 +1,8 @@
+```jsx {expectedErrors: {'react-compiler': 'invalid'}}
+import {useState} from 'react';
+function Counter() {
+  const [count, setCount] = useState(0);
+  setCount(count + 1);
+  return <div>{count}</div>;
+}
+```

eslint-local-rules/__tests__/fixtures/src/content/mixed-language.md

@@ -0,0 +1,7 @@
+```bash
+setCount()
+```
+
+```txt
+import {useState} from 'react';
+```

eslint-local-rules/__tests__/fixtures/src/content/stale-expected-error.md

@@ -0,0 +1,5 @@
+```jsx {expectedErrors: {'react-compiler': [3]}}
+function Hello() {
+  return <h1>Hello</h1>;
+}
+```

eslint-local-rules/__tests__/fixtures/src/content/suppressed-error.md

@@ -0,0 +1,8 @@
+```jsx {expectedErrors: {'react-compiler': [4]}}
+import {useState} from 'react';
+function Counter() {
+  const [count, setCount] = useState(0);
+  setCount(count + 1);
+  return <div>{count}</div>;
+}
+```