Add GitHub action

.github/workflows/main.yaml

@@ -0,0 +1,70 @@
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python: ["2.7", "3.6", "3.7", "3.8"]
+
+    name: Test Python ${{ matrix.python }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install pytest -e .
+
+      - name: Run tests
+        run: py.test -v translationstring
+
+  release:
+    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+    runs-on: ubuntu-latest
+    name: Release
+    needs: [ test ]
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+
+      - name: Install wheel
+        run: python -m pip install wheel --user
+
+      - name: Insert version number
+        run: |
+          version=$(echo $GITHUB_REF | cut -d/ -f3)
+          sed -ie "/^version/s/=.*/= $version/" setup.cfg
+
+      - name: Build a binary wheel and a source tarball
+        run: python setup.py sdist bdist_wheel
+
+      - name: Publish package
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.pypi_password }}
+
+      - name: Create GitHub Release
+        id: create_release
+        uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: false