Initial commit

.github/workflows/update-index.yml

@@ -0,0 +1,40 @@
+name: Update index
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+# mutex
+concurrency:
+  group: update-index
+  cancel-in-progress: false
+
+jobs:
+  create-index:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create index
+        run: |
+          set -euxo pipefail
+          curl -H "Authorization: ${{ secrets.GITHUB_TOKEN }}" https://api.github.com/repos/leanprover/lean4/releases?per-page=100 > releases
+          curl -H "Authorization: ${{ secrets.GITHUB_TOKEN }}" https://api.github.com/repos/leanprover/lean4-nightly/releases?per-page=100 > releases-nightly
+          mkdir output
+          jq -s '{version: "1", stable: .[0] | map(select(.prerelease)), beta: .[0] | map(select(.prerelease | not)), nightly: .[1]}' releases releases-nightly > output/index.json
+      - name: Create artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: output
+  deploy:
+    needs: create-index
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    permissions:
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2