add workflows

.github/workflows/pre-commit.yml

@@ -0,0 +1,14 @@
+name: pre-commit
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+    - uses: pre-commit/[email protected]

.github/workflows/pythonapp.yml

@@ -0,0 +1,92 @@
+name: "python tests+artifacts+release"
+
+on:
+  pull_request:
+  push:
+    branches:
+    - main
+    tags:
+    - "v*"
+  release:
+    types: [published]
+
+
+jobs:
+  dist:
+    runs-on: ubuntu-latest
+    name: Python sdist/wheel
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.9"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install --upgrade wheel setuptools build
+
+    - name: Build package
+      run: python -m build -o dist/
+    - uses: actions/upload-artifact@v2
+      with:
+        name: dist
+        path: dist
+
+  test:
+    runs-on: ubuntu-latest
+    needs: [dist]
+    strategy:
+      matrix:
+        # todo: extract from source
+        python-version: [3.6, 3.7, 3.8, 3.9, "3.10-dev"]
+        install-from: ["dist/*.whl"]
+        pytest: ["pytest~=6.0.0", "pytest~=6.1.0", "pytest~=6.2.0",  ]
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -U setuptools setuptools_scm
+        pip install pytest
+    - uses: actions/download-artifact@v2
+      with:
+        name: dist
+        path: dist
+    - name: install ${{ matrix.install-from }}
+      run: pip install ${{ matrix.install-from }}
+    - name: pytest
+      run: pytest
+
+
+  dist_check:
+    runs-on: ubuntu-latest
+    needs: [dist]
+    steps:
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.9"
+    - uses: actions/download-artifact@v2
+      with:
+        name: dist
+        path: dist
+    - run: pipx run twine check --strict dist/*
+
+  dist_upload:
+
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+    needs: [dist_check, test]
+    steps:
+    - uses: actions/download-artifact@v2
+      with:
+        name: dist
+        path: dist
+    - name: Publish package to PyPI
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        user: __token__
+        password: ${{ secrets.pypi_token }}