Merge pull request #149 from boutproject/ci-tests-to-github-actions

Convert CI to Google action instead of Travis

.github/workflows/pythonpackage.yml

@@ -0,0 +1,79 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Python package
+
+on:
+  [push, pull_request]
+
+jobs:
+  pytest:
+
+    runs-on: ubuntu-latest
+    if: always()
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8]
+        pip-packages:
+          - "setuptools pip pytest pytest-cov coverage codecov boutdata xarray!=0.14.0 numpy>=1.16.0"
+          - "setuptools pip pytest pytest-cov coverage codecov boutdata xarray==0.16.0 dask==2.10.0 numpy==1.16.0 natsort==5.5.0 matplotlib==3.1.1 animatplot==0.4.1 netcdf4==1.4.2 Pillow==6.1.0 fsspec" # test with oldest supported version of packages. Note, using numpy==1.16.0 as a workaround for some weird fails on Travis, in principle we should work with numpy>=1.13.3. We should not need to install fsspec explicitly, but at the moment are getting import errors in the tests due to fsspec not being present - should remove in future, probably when dask version is increased.
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        sudo apt-get install libhdf5-dev libnetcdf-dev
+        python -m pip install --upgrade pip
+        pip install --upgrade ${{ matrix.pip-packages }}
+        pip install -r requirements.txt
+    - name: Test with pytest
+      run: |
+        pip install pytest
+        pytest -v --long --cov
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
+      with:
+        fail_ci_if_error: true
+
+
+  # Need to tidy up the things that flake8 finds before we activate this
+  #flake8:
+
+  #  runs-on: ubuntu-latest
+  #  if: always()
+
+  #  steps:
+  #  - uses: actions/checkout@v2
+  #  - name: Set up Python
+  #    uses: actions/setup-python@v1
+  #  - name: Install dependencies
+  #    run: |
+  #      python -m pip install --upgrade pip
+  #      pip install -r requirements.txt
+  #  - name: Lint with flake8
+  #    run: |
+  #      pip install flake8
+  #      flake8
+
+
+  black:
+
+    runs-on: ubuntu-latest
+    if: always()
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v1
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+    - name: Check formatting with black
+      run: |
+        pip install black
+        black --check .