improve ci

Author: Apkawa

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ on:
   pull_request:
 
 jobs:
-  build:
+  test:
     runs-on: ubuntu-20.04
     name: "python ${{ matrix.python-version }} ${{ matrix.toxenv }}"
     strategy:
@@ -50,3 +50,42 @@ jobs:
       - uses: codecov/codecov-action@v1
         with:
           env_vars: OS,PYTHON,TOXENV
+
+  publish:
+    name: Build and publish Python distributions to PyPI and TestPyPI
+    needs:
+      - test
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@master
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.7
+      - name: Install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+      - name: Build a binary wheel and a source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+      - name: Publish distribution to Test PyPI
+        if: github.ref == 'refs/heads/master'
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          skip_existing: true
+          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+          repository_url: https://test.pypi.org/legacy/
+
+      - name: Publish distribution to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          skip_existing: true
+          password: ${{ secrets.PYPI_API_TOKEN }}