Automatically redeploy the website whenever js-api-docs changes (#3178)

.github/workflows/ci.yml

@@ -61,3 +61,28 @@ jobs:
       with: {node-version: '${{ env.NODE_VERSION }}'}
     - run: npm ci
     - run: npm run typedoc
+
+  # Whenever anything changes in js-api-docs, redeploy the website so it picks
+  # up those changes.
+  heroku:
+    name: Deploy sass-lang.com
+    runs-on: ubuntu-latest
+    needs: [static_analysis, js_api_mirroring, typedoc]
+    if: |
+      github.event_name == 'push' &&
+      github.repository == 'sass/sass' &&
+      github.ref == 'refs/heads/main'
+
+    steps:
+    - uses: actions/checkout@v2
+      with: {fetch-depth: 0}
+
+    - name: Find changed files in js-api-doc
+      id: changed-files
+      uses: tj-actions/changed-files@b86b537e2b78397b630cfb1a8d0aec1e03379737
+      with: {path: js-api-doc}
+
+    - name: Deploy
+      if: steps.changed-files.outputs.any_changed == 'true'
+      run: tool/github-action/deploy-heroku.sh
+      env: {HEROKU_TOKEN: "${{ secrets.HEROKU_TOKEN }}"}

tool/github-action/deploy-heroku.sh

@@ -0,0 +1,15 @@
+#!/bin/bash -e
+# Copyright 2018 Google Inc. Use of this source code is governed by an MIT-style
+# license that can be found in the LICENSE file or at
+# https://opensource.org/licenses/MIT.
+
+curl https://kolkrabbi.heroku.com/apps/98fc74a8-ff56-4a21-85f6-7a1fc8ba95c9/github/push \
+  -H "Content-Type: application/json" \
+  -H "Accept: application/json, text/javascript, */*; q=0.01" \
+  -H "Authorization: Bearer $HEROKU_TOKEN" \
+  -H "accept-encoding: gzip, deflate, br" \
+  -H "accept-language: en-US,en;q=0.9" \
+  -H "origin: https://dashboard.heroku.com" \
+  -H "referer: https://dashboard.heroku.com/" \
+  -d '{"branch":"main"}' \
+  --fail --output -