update docs deploy: stable/latest (#15460)

* update docs deploy
* gcp - bucket

Author: Borda

.github/workflows/docs-deploy.yml

@@ -1,7 +1,14 @@
 name: "Deploy Docs"
 on:
   push:
-    branches: ["release/stable"]
+    branches: ["master", "release/stable"]
+
+env:
+  FREEZE_REQUIREMENTS: 1
+
+defaults:
+  run:
+    shell: bash
 
 jobs:
   # https://github.com/marketplace/actions/deploy-to-github-pages
@@ -17,17 +24,6 @@ jobs:
         with:
           python-version: 3.8
 
-      - id: 'auth'
-        name: 'Authenticate to Google Cloud'
-        uses: 'google-github-actions/auth@v0'
-        with:
-          credentials_json: ${{ secrets.GCS_SA_KEY }}
-
-      - name: Setup gcloud
-        uses: 'google-github-actions/setup-gcloud@v0'
-        with:
-          project_id: ${{ secrets.GCS_PROJECT }}
-
       # Note: This uses an internal pip API and may not always work
       # https://github.com/actions/cache/blob/master/examples.md#multiple-oss-in-a-workflow
       - name: Cache pip
@@ -39,16 +35,13 @@ jobs:
             ${{ runner.os }}-deploy-docs-pip-
 
       - name: Install package & dependencies
-        env:
-          FREEZE_REQUIREMENTS: 1
         run: |
           sudo apt-get update
           sudo apt-get install -y cmake pandoc
+          sudo apt-get install -y texlive-latex-extra dvipng texlive-pictures
           pip --version
           pip install -e . --quiet -r requirements/app/docs.txt --find-links https://download.pytorch.org/whl/cpu/torch_stable.html
-          sudo apt-get update && sudo apt-get install -y texlive-latex-extra dvipng texlive-pictures
           pip list
-        shell: bash
 
       - name: Make Documentation
         working-directory: ./docs/source-app
@@ -63,13 +56,30 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           branch: gh-pages # The branch the action should deploy to.
           folder: docs/build/html # The folder the action should deploy.
-          clean: true # Automatically remove deleted files from the deploy branch
+          clean: true # Automatically remove deleted files from deploy branch
           target-folder: docs # If you'd like to push the contents of the deployment folder into a specific directory
           single-commit: true # you'd prefer to have a single commit on the deployment branch instead of full history
         if: success()
 
-      # Uploading docs to GCS so they can be served on lightning.ai
-      - name: Upload to GCS 🪣
+      - id: 'auth'
+        name: 'Authenticate to Google Cloud'
+        uses: google-github-actions/auth@v0
+        with:
+          credentials_json: ${{ secrets.GCS_SA_KEY }}
+
+      - name: Setup gcloud
+        uses: google-github-actions/setup-gcloud@v0
+        with:
+          project_id: ${{ secrets.GCS_PROJECT }}
+
+      # Uploading docs to GCS, so they can be served on lightning.ai
+      - name: Upload docs/stable to GCS 🪣
+        if: ${{ success() && startsWith(github.ref, 'refs/heads/release/')) }}
         run: |-
-          gsutil -m rsync -d -R docs/build/html/ gs://${{ secrets.GCS_BUCKET }}
-        if: success()
+          gsutil -m rsync -d -R docs/build/html/ gs://lightning-docs-stable
+
+      # Uploading docs to GCS, so they can be served on lightning.ai
+      - name: Upload docs/latest to GCS 🪣
+        if: ${{ success() && github.ref == 'refs/heads/master' }}
+        run: |-
+          gsutil -m rsync -d -R docs/build/html/ gs://lightning-docs-latest