Update lint-library-generator.yml

Updated to use pipenv.

.github/workflows/lint-library-generator.yml

@@ -27,14 +27,22 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Set up pipenv
+      uses: actions/cache@v2
+      with: 
+        path: ~/.local/share/virtualenvs
+        key: ${{ runner.os }}-pipenv-${{ hashfiles('**/Pipfile.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-pipenv-
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        python -m pip install pipenv
+        pipenv install --deploy
+        pipenv install flake8 pytest
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        flake8 ./generator/generate_library.py --count --select=E9,F63,F7,F82 --ignore=F405,W391,W291,C901,E501,E303,W293  --show-source --statistics
+        pipenv run flake8 ./generator/generate_library.py --count --select=E9,F63,F7,F82 --ignore=F405,W391,W291,C901,E501,E303,W293  --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        pipenv run flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics