Update ci.yml

.github/workflows/ci.yml

@@ -5,35 +5,37 @@ on:
       - main
 
 env:
-  PYTHON_VERSION: 3.x
+  PYTHON_VERSION: 3.8
 
 jobs:
   deploy:
     name: Build documentation
     runs-on: ubuntu-latest
     steps:
-
       - name: Checkout main branch
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
-
       - name: Download videos branch and unzip
         run: |
-          wget https://codeload.github.com/MiSTer-devel/MkDocs_MiSTer/zip/refs/heads/videos
-          unzip videos
-          cd MkDocs_MiSTer-videos/
-          cp -r docs ../
-
+          wget https://codeload.github.com/MiSTer-devel/MkDocs_MiSTer/zip/refs/heads/videos || exit 1
+          unzip videos || exit 1
+          cd MkDocs_MiSTer-videos/ || exit 1
+          cp -r docs ../ || exit 1
       - name: Setup Python runtime
         uses: actions/setup-python@v3
         with:
           python-version: ${{ env.PYTHON_VERSION }}
-
+      - name: Cache Python dependencies
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
       - name: Install Python Dependencies
         run: |
           pip install -r requirements.txt
-
       - name: Deploy Documentation
         run: |
           mkdocs gh-deploy --force