Feature/gha tests dependency caching

.github/workflows/unit-tests.yml

@@ -22,20 +22,46 @@ jobs:
 
     steps:
 
-      - uses: actions/setup-python@v2
+      - name: Setup Python
+        uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      - run: python -m pip install --upgrade pip
 
-      - uses: actions/checkout@v2
+      - name: Upgrade pip
+        run: python -m pip install --upgrade pip
 
-      - run: python -m pip install .[test,docs]
+      - name: Checkout code
+        uses: actions/checkout@v2
 
-      - run: python -m pytest ./testing/ --cov=idelib --cov-report=xml -n auto
-      - run: sphinx-build -W -b html docs docs/html
-      - run: sphinx-build -W -b doctest docs docs/doctest
+      - name: Get pip Cache Location
+        id: pip-cache
+        run: echo "::set-output name=dir::$(pip cache dir)"
 
-      - uses: codecov/codecov-action@v2
+      - name: Get Date
+        id: get-date
+        run: echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
+        shell: bash
+
+      - name: Setup pip Cache
+        uses: actions/cache@v2
+        with:
+          path: ${{ steps.pip-cache.outputs.dir }}
+          key: ${{ runner.os }}-${{ matrix.python-version }}-${{ steps.get-date.outputs.date }}-pip-${{ hashFiles('**/setup.py') }}
+
+      - name: Install package & (test) dependencies
+        run: python -m pip install .[test,docs]
+
+      - name: Run Unit Tests
+        run: python -m pytest ./testing/ --cov=idelib --cov-report=xml -n auto
+
+      - name: Run Docs test
+        run: sphinx-build -W -b html ./docs/source ./docs/html
+
+      - name: Run Docstring Tests
+        run: sphinx-build -W -b doctest ./docs/source ./docs/doctest
+
+      - name: Generate Codecov Report
+        uses: codecov/codecov-action@v2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           env_vars: OS,PYTHON-VERSION