Implement dependency caching for build-site.yml

.github/workflows/build-site.yml

@@ -15,9 +15,16 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: '3.x'
+      - name: Cache pip dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
       - name: Install dependencies
         run: |
-          pip install pelican markdown
+          pip install -r requirements.txt
       - name: Generate static HTML
         run: pelican content -s publishconf.py
       - name: Ensure CNAME file

requirements.txt

@@ -0,0 +1,2 @@
+pelican
+Markdown