From e017ceb9f5da0486693d079b8a09cc81e87d2a09 Mon Sep 17 00:00:00 2001
From: David Sanders <dsanders11@ucsbalum.com>
Date: Mon, 18 Nov 2024 23:08:16 -0800
Subject: [PATCH] chore: audit to ensure docs are up-to-date (#677)

---
 .github/workflows/audit-docs-version.yml | 61 ++++++++++++++++++++++++
 docs/latest/.sha                         |  1 +
 docusaurus.config.ts                     | 24 ++++++++++
 scripts/pre-build.ts                     |  7 ++-
 4 files changed, 91 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/audit-docs-version.yml
 create mode 100644 docs/latest/.sha

diff --git a/.github/workflows/audit-docs-version.yml b/.github/workflows/audit-docs-version.yml
new file mode 100644
index 0000000..079e56d
--- /dev/null
+++ b/.github/workflows/audit-docs-version.yml
@@ -0,0 +1,61 @@
+name: Audit Docs Version
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 17 * * *'
+
+permissions: {}
+
+jobs:
+  audit_docs_version:
+    name: Audit Docs Version
+    runs-on: ubuntu-latest
+    steps:
+      - run: npm install @electron/fiddle-core
+      - name: Confirm latest version
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          script: |
+            const { setTimeout } = await import('node:timers/promises');
+            const { ElectronVersions } = await import('${{ github.workspace }}/node_modules/@electron/fiddle-core/dist/index.js');
+
+            const DOCS_SHA_REGEX = /<meta name="docs-sha" content="(\w+)">/m;
+            const DELTA_THRESHOLD_MS = 1000*60*20;
+
+            const resp = await fetch('https://electronjs.org');
+
+            if (!resp.ok) {
+              core.setFailed('Could not fetch website');
+              return;
+            }
+
+            const latestDocsSHA = (await resp.text()).match(DOCS_SHA_REGEX)?.[1];
+
+            const versions = await ElectronVersions.create(undefined, { ignoreCache: true });
+
+            const { data } = await github.rest.repos.getBranch({
+              owner: 'electron',
+              repo: 'electron',
+              branch: `${versions.latestStable.major}-x-y`,
+            });
+
+            const { date } = data.commit.commit.committer;
+            const delta = Date.now() - new Date(date).getTime();
+
+            // If the commit happened recently, wait a bit for the site
+            // to deploy before checking so we don't get a false positive
+            if (delta < DELTA_THRESHOLD_MS) {
+              await setTimeout(DELTA_THRESHOLD_MS - delta);
+            }
+
+            if (data.commit.sha !== latestDocsSHA) {
+              core.summary.addRaw('🚨 Docs are NOT up-to-date');
+
+              // Set this as failed so it's easy to scan runs to find failures
+              process.exitCode = 1;
+            } else {
+              core.summary.addRaw('🎉 Docs are up-to-date');
+            }
+
+            await core.summary.write();
diff --git a/docs/latest/.sha b/docs/latest/.sha
new file mode 100644
index 0000000..62e103b
--- /dev/null
+++ b/docs/latest/.sha
@@ -0,0 +1 @@
+72115c1948ebe8c31525654440dc4d35d0dbb6b9
\ No newline at end of file
diff --git a/docusaurus.config.ts b/docusaurus.config.ts
index cfb79c3..a69ed20 100644
--- a/docusaurus.config.ts
+++ b/docusaurus.config.ts
@@ -1,4 +1,6 @@
+import fs from 'fs';
 import path from 'path';
+
 import { Config } from '@docusaurus/types';
 import npm2yarn from '@docusaurus/remark-plugin-npm2yarn';
 import { themes as prismThemes } from 'prism-react-renderer';
@@ -15,6 +17,17 @@ import jsCodeBlocks from './src/transformers/js-code-blocks';
 import fiddleEmbedder from './src/transformers/fiddle-embedder';
 import apiHistory from './src/transformers/api-history';
 
+let docsSHA = undefined;
+
+try {
+  docsSHA = fs.readFileSync(
+    path.resolve(__dirname, './docs/latest/.sha'),
+    'utf-8'
+  );
+} catch {
+  console.warn('No .sha file found in docs/latest directory');
+}
+
 const config: Config = {
   title: 'Electron',
   tagline: 'Build cross-platform desktop apps with JavaScript, HTML, and CSS',
@@ -24,6 +37,17 @@ const config: Config = {
   favicon: 'assets/img/favicon.ico',
   organizationName: 'electron',
   projectName: 'electron',
+  headTags: docsSHA
+    ? [
+        {
+          tagName: 'meta',
+          attributes: {
+            name: 'docs-sha',
+            content: docsSHA,
+          },
+        },
+      ]
+    : [],
   markdown: {
     mermaid: true,
   },
diff --git a/scripts/pre-build.ts b/scripts/pre-build.ts
index 78c5a0d..13aa881 100644
--- a/scripts/pre-build.ts
+++ b/scripts/pre-build.ts
@@ -3,9 +3,10 @@
  * right places, and transform it to make it ready to
  * be used by docusaurus.
  */
+import { existsSync } from 'fs';
+import fs from 'fs/promises';
 import path from 'path';
 
-import { existsSync, remove } from 'fs-extra';
 import latestVersion from 'latest-version';
 import logger from '@docusaurus/logger';
 
@@ -26,7 +27,7 @@ const DOCS_FOLDER = path.join(__dirname, '..', 'docs', 'latest');
 const start = async (source: string): Promise<void> => {
   logger.info(`Running ${logger.green('electronjs.org')} pre-build scripts...`);
   logger.info(`Deleting previous content at ${logger.green(DOCS_FOLDER)}`);
-  await remove(DOCS_FOLDER);
+  await fs.rm(DOCS_FOLDER, { recursive: true, force: true });
 
   const localElectron =
     source && (source.includes('/') || source.includes('\\'));
@@ -52,6 +53,8 @@ const start = async (source: string): Promise<void> => {
       destination: DOCS_FOLDER,
       downloadMatch: '/docs/',
     });
+
+    await fs.writeFile(path.join(DOCS_FOLDER, '.sha'), source);
   } else if (existsSync(source)) {
     await copy({
       target: source,