🔧 caching the dependencies

.github/workflows/pylint.yml

@@ -3,43 +3,62 @@ name: Python CI
 on: [push, workflow_dispatch]
 
 jobs:
-  install-dependencies:
+  setup-and-lint:
     runs-on: ubuntu-latest
-    outputs:
-      python-version: ${{ steps.setup-python.outputs.python-version }}
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11"]
     steps:
       - uses: actions/checkout@v3
+
       - name: Set up Python
-        id: setup-python
         uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python-version }}
+
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install -U pylint
           pip install -r requirements.txt
 
-  lint:
-    needs: install-dependencies
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Set up Python
-        uses: actions/setup-python@v3
-        with:
-          python-version: ${{ needs.install-dependencies.outputs.python-version }}
-      - name: Analysing the code with pylint
+      - name: Lint Code
         run: pylint $(git ls-files '*.py')
 
   test:
-    needs: install-dependencies
+    needs: setup-and-lint
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11"]
     steps:
       - uses: actions/checkout@v3
+
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
-          python-version: ${{ needs.install-dependencies.outputs.python-version }}
-      - name: Run tests with pytest
+          python-version: ${{ matrix.python-version }}
+
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
         run: pytest .