set up workflow

.github/workflows/test-suite.yml

@@ -0,0 +1,107 @@
+name: Run Tests
+on:
+  push:
+    branches:
+      - main
+  release:
+    types: [published]
+  pull_request:
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+jobs:
+  test:
+    name: Test with Python ${{matrix.python}} on ${{matrix.platform}}
+    runs-on: ${{matrix.platform}}-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+        - ubuntu
+        python:
+        - 3.7
+        - 3.8
+        - 3.9
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+        submodules: true
+
+    - name: Prepare Conda environment spec
+      id: conda-lock
+      shell: bash
+      run: |
+        bash lkbuild/lock-for-ci.sh -v $PYVER
+      env:
+        RUNNER: ${{runner.os}}
+        PYVER: ${{matrix.python}}
+
+    - name: Initialize Conda
+      uses: conda-incubator/setup-miniconda@v2
+      with:
+        activate-environment: lkpy
+        environment-file: ${{steps.conda-lock.outputs.environment-file}}
+
+    - name: 🔎 Inspect environment
+      run: |
+        numba -s
+
+    - name: Run tests
+      run: |
+        python -m pytest --cov=lenskit_tf -v
+
+    - name: Aggregate coverage data
+      run: coverage xml
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v1
+
+  sdist:
+    name: Build Source Packages
+    runs-on: ubuntu-latest
+    needs: [test]
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Fetch Git tags
+      run: git fetch --tags
+
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+
+    - name: Install Python deps
+      run: |
+        pip install -U flit
+        flit install --deps=production --extras=dev
+
+    - name: Build distribution
+      run: flit build
+
+    - name: Save archive
+      uses: actions/upload-artifact@v1
+      with:
+        name: pypi-pkgs
+        path: dist
+
+    - name: List dist dir
+      run: ls -R dist
+
+    - name: Publish PyPI packages
+      if: github.event_name == 'release'
+      run: |
+        flit publish
+      shell: bash
+      env:
+        TWINE_NON_INTERACTIVE: y
+        FLIT_USERNAME: __token__
+        FLIT_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+