ci: update preview workflow to trigger on successful documentation builds

Author: alaahong

.github/workflows/preview-docs.yml

@@ -18,48 +18,57 @@
 name: Preview Documentation
 
 on:
-  pull_request_target:
-    paths:
-      - 'website/**'
+  workflow_run:
+    workflows: ["Build Documentation"]
+    types:
+      - completed
 
 jobs:
-  deploy-preview:
+  preview:
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout
+        uses: actions/checkout@v4
 
-      - uses: pnpm/action-setup@v4
+      - name: Download artifact
+        uses: actions/github-script@v7
         with:
-          version: 8
-          run_install: false
+          script: |
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: ${{ github.event.workflow_run.id }},
+            });
+            const websiteArtifact = artifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == 'website'
+            })[0];
+            var download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: websiteArtifact.id,
+               archive_format: 'zip',
+            });
+            const fs = require('fs');
+            fs.writeFileSync('${{github.workspace}}/website.zip', Buffer.from(download.data));
 
-      - uses: actions/setup-node@v4
-        with:
-          node-version: "20"
-
-      - name: Corepack
-        working-directory: website
-        run: npm i -g --force corepack && corepack enable
-
-      - name: Install Dependencies
-        working-directory: website
-        run: pnpm install
-
-      - name: Build
-        working-directory: website
-        run: pnpm build
+      - name: Unzip artifact
+        run: unzip -q website.zip -d website/build
 
-      - name: Deploy to Netlify
+      - name: Deploy preview to Netlify
         uses: nwtgck/actions-netlify@4cbaf4c08f1a7bfa537d6113472ef4424e4eb654
         with:
           publish-dir: './website/build'
           production-deploy: false
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          deploy-message: ${{ github.event.pull_request.title }}
+          deploy-message: "Deploy preview for PR #${{ github.event.workflow_run.pull_requests[0].number }}"
           enable-pull-request-comment: true
           enable-commit-comment: false
           enable-github-deployment: false
-          alias: deploy-preview-${{ github.event.number }}
+          alias: deploy-preview-${{ github.event.workflow_run.pull_requests[0].number }}
         env:
           NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
           NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
+        timeout-minutes: 10