Add a PyPi workflow

.github/workflows/pypi.yml

@@ -0,0 +1,50 @@
+name: PyPI
+on:
+  push:
+    branches:
+      - master
+      - auto-release
+  pull_request:
+    branches: [master]
+  release:
+    types: [published]
+
+jobs:
+  build:
+    name: Build source distribution
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+      - name: Build the sdist
+        run: |
+          python setup.py sdist
+      - name: Check the sdist installs and imports
+        run: |
+          mkdir -p test-sdist
+          cd test-sdist
+          python -m venv venv-sdist
+          venv-sdist/bin/python -m pip install ../dist/logical-unification-*.tar.gz
+      - uses: actions/upload-artifact@v2
+        with:
+          name: artifact
+          path: dist/*
+
+  upload_pypi:
+    name: Upload to PyPI on release
+    needs: [build]
+    runs-on: ubuntu-latest
+    if: github.event_name == 'release' && github.event.action == 'published'
+    steps:
+      - uses: actions/download-artifact@v2
+        with:
+          name: artifact
+          path: dist
+      - uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.pypi_secret }}

.github/workflows/tests.yml

@@ -32,6 +32,7 @@ jobs:
             - 'setup.cfg'
             - 'requirements.txt'
             - '.coveragerc'
+            - '.pre-commit-config.yaml'
 
   style:
     name: Check code style
@@ -50,7 +51,7 @@ jobs:
       - changes
       - style
     runs-on: ubuntu-latest
-    if: ${{ needs.changes.outputs.changes == 'true' }}
+    if: ${{ needs.changes.outputs.changes == 'true' && needs.style.result == 'success' }}
     strategy:
       matrix:
         python-version:
@@ -77,8 +78,20 @@ jobs:
         parallel: true
         flag-name: run-${{ matrix.python-version }}
 
-  coveralls_finish:
-    needs: test
+  all-checks:
+    if: ${{ always() }}
+    runs-on: ubuntu-latest
+    name: "All tests"
+    needs: [changes, style, test]
+    steps:
+      - name: Check build matrix status
+        if: ${{ needs.changes.outputs.changes == 'true' && (needs.style.result != 'success' || needs.test.result != 'success') }}
+        run: exit 1
+
+  upload-coverage:
+    name: "Upload coverage"
+    needs: [changes, all-checks]
+    if: ${{ needs.changes.outputs.changes == 'true' && needs.all-checks.result == 'success' }}
     runs-on: ubuntu-latest
     steps:
     - name: Coveralls Finished