Unify workflows (#38)

Author: grktsh

.github/workflows/ci.yml

@@ -1,12 +1,18 @@
 name: CI
 
 on:
-  pull_request:
-  push:
-    branches:
+  - push
+  - pull_request
 
 jobs:
-  ci:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - uses: pre-commit/action@v2.0.0
+
+  test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -24,21 +30,14 @@ jobs:
           # actions/checkout#249
           fetch-depth: 0
 
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+      - uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Ensure pip is up to date
         run: |
           python -m pip install --upgrade pip
 
-      - name: Lint
-        run: |
-          python -m pip install pre-commit
-          pre-commit run --all-files
-        if: matrix.python-version == '3.8'
-
       - name: Test
         run: |
           python -m pip install tox
@@ -47,3 +46,37 @@ jobs:
       - uses: codecov/codecov-action@v1
         with:
           fail_ci_if_error: true
+
+  release:
+    needs:
+      - lint
+      - test
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+
+      - name: Ensure pip is up to date
+        run: |
+          python -m pip install --upgrade pip
+
+      - name: Build
+        run: |
+          python -m pip install pep517
+          python -m pep517.build .
+
+      - name: Publish
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          python -m pip install twine
+          twine upload dist/*
+
+      - uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}