Merge pull request #121 from pypa/gh-actions

Switch CI from Travis to GitHub actions

.github/workflows/tests.yml

@@ -0,0 +1,50 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install Tox
+      run: |
+        pip install tox tox-venv
+
+    - name: Run tests
+      run: tox -e python
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: tests
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+
+      - name: Install Tox
+        run: |
+          pip install tox tox-venv
+
+      - name: Publish to PyPI
+        run: tox -e release
+        env:
+          FLIT_USERNAME: __token__
+          FLIT_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+          TOX_TESTENV_PASSENV: "FLIT_USERNAME FLIT_PASSWORD"