Modernize code and add a test

.github/workflows/main.yml

@@ -0,0 +1,104 @@
+name: build
+
+on: [push, pull_request]
+
+env:
+  PYTEST_ADDOPTS: "--color=yes"
+
+jobs:
+  test:
+    name: Test - ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Set up Pip cache
+        uses: actions/cache@v2
+        id: pip-cache
+        with:
+          path: ~/.cache/pip
+          key: pip-${{ hashFiles('**/pyproject.toml') }}
+      - name: Upgrade Pip
+        run: python -m pip install --upgrade pip
+      - name: Install Poetry
+        run: python -m pip install poetry
+      - name: Set up Poetry cache
+        uses: actions/cache@v2
+        id: poetry-cache
+        with:
+          path: ~/.cache/pypoetry/virtualenvs
+          key: poetry-${{ hashFiles('**/poetry.lock') }}
+      - name: Install dependencies
+        run: |
+          poetry run pip install --upgrade pip
+          poetry install
+      - name: Run tests
+        run: poetry run invoke tests
+
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+      - name: Set Poetry cache
+        uses: actions/cache@v2
+        id: poetry-cache
+        with:
+          path: ~/.cache/pypoetry/virtualenvs
+          key: poetry-${{ hashFiles('**/poetry.lock') }}
+      - name: Upgrade Pip
+        run: python -m pip install --upgrade pip
+      - name: Install Poetry
+        run: python -m pip install poetry
+      - name: Install dependencies
+        run: |
+          poetry run pip install --upgrade pip
+          poetry install
+      - name: Run linters
+        run: poetry run invoke lint
+
+
+  deploy:
+    name: Deploy
+    environment: Deployment
+    needs: [test, lint]
+    runs-on: ubuntu-latest
+    if: ${{ github.ref=='refs/heads/main' && github.event_name!='pull_request' }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.x"
+      - name: Check release
+        id: check_release
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install poetry githubrelease httpx==0.16.1 autopub
+          echo "##[set-output name=release;]$(autopub check)"
+      - name: Publish
+        if: ${{ steps.check_release.outputs.release=='' }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          PYPI_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          git remote set-url origin https://$GITHUB_TOKEN@github.com/${{ github.repository }}
+          autopub prepare
+          poetry build
+          autopub commit
+          autopub githubrelease
+          poetry publish -u __token__ -p $PYPI_PASSWORD