Merge pull request #14 from qitianshi/config-pylint-workflow

Optimize GitHub Actions workflows with Python venv caching

.github/workflows/pylint.yml

@@ -22,17 +22,17 @@ jobs:
     - uses: actions/cache@v2
       id: cache-venv
       with:
-        path: ${{ env.pythonLocation }}
-        key: ${{ env.pythonLocation }}-${{ hashFiles('requirements.txt') }}
-
-    - name: Install dependencies
+        path: ./venv/
+        key: ${{ runner.os }}-venv-${{ hashFiles('**/requirements*.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-venv-
+
+    - name: Create Python venv and install dependencies
+      run: python3 -m venv ./venv && . ./venv/bin/activate &&
+           pip install -r requirements.txt && python3 -m pip install pylint
       if: steps.cache-venv.outputs.cache-hit != 'true'
-      run: |
-        python -m pip install --upgrade pip
-        pip install pylint
-        pip install --upgrade --upgrade-strategy eager -r requirements.txt
 
-    - name: Analysing the code with pylint
+    - name: Analysing with pylint
       # Runs Pylint, disables refactor (R) messages and TODO/FIXME warnings (W0511)
       run: |
-        pylint analysis --disable=R --disable=W0511
+        . ./venv/bin/activate && pylint analysis --disable=R --disable=W0511