Migrate to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,12 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [master]
+
+jobs:
+  test-and-publish:
+    uses: ./.github/workflows/test-and-publish.yml
+    with:
+      environment: dev
+    secrets: inherit

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: release
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  test-and-publish:
+    uses: ./.github/workflows/test-and-publish.yml
+    with:
+      environment: production
+    secrets: inherit
+
+  publish-website:
+    runs-on: ubuntu-latest
+    container:
+      image: amazon/aws-cli
+    needs: [test-and-publish]
+    environment: 'production'
+    steps:
+      - name: Download docs
+        uses: actions/download-artifact@v3
+        with:
+          name: docs
+      - name: Publish to S3
+        run: |
+          cd docs
+          aws s3 sync --region eu-west-1 --delete . s3://diff2html.xyz --metadata-directive REPLACE --cache-control max-age=31557600
+          aws cloudfront create-invalidation --region eu-west-1 --distribution-id $AWS_CF_DISTRIBUTION_ID --paths /index.html /demo.html /sitemap.xml /robots.txt