All the things!

.github/actions/action.yaml

@@ -10,15 +10,6 @@ runs:
       echo python `which python`
       python -c "import sys; print(sys.version)"
       python -c "import os; print(os.environ)"
-  - name: BeforeInstall
+  - name: Install dependencies and yt
     shell: bash
-    run: source ./tests/travis_before_install.sh
-  - name: Install
-    shell: bash
-    run: source ./tests/travis_install.sh
-
-
-#  - name: Install non Python deps
-#    if: runner.os == 'Linux'
-#    shell: bash
-#    run: sudo apt-get install libhdf5-serial-dev libnetcdf-dev libproj-dev proj-data proj-bin libgeos-dev libopenmpi-dev
+    run: source ./tests/ci_install.sh

.github/workflows/build_test.yaml

@@ -11,27 +11,62 @@ env:
   HOMEBREW_NO_AUTO_UPDATE: 1
 
 jobs:
-  windows:
-    runs-on: windows-latest
+
+  build:
+    strategy:
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04]
+        python-version: [3.8]
+        minimal: [false]
+        answer-tests: [false]
+        include:
+          - os: ubuntu-18.04
+            python-version: 3.6
+            minimal: true
+            answer-tests: false
+          - os: ubuntu-18.04
+            python-version: 3.7
+            minimal: false
+            answer-tests: true
+
+    runs-on: ${{ matrix.os }}
     steps:
+    - name: Install Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
     - uses: actions/checkout@v2
       with:
         submodules: recursive
         fetch-depth: 0
-    - name: Install Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ env.PYTHON_VERSION }}
     - uses: s-weigand/setup-conda@v1
+      if: matrix.os == 'windows-latest'
       with:
         update-conda: true
         conda-channels: conda-forge
         activate-conda: true
-    - run: conda --version
-    - run: which python
-    - uses: ./.github/actions
+        python-version: ${{matrix.python-version}}
+    - name: Show env
+      shell: bash
+      run: |
+        echo PATH $PATH
+        echo python `which python`
+        python -c "import sys; print(sys.version)"
+    - name: Install dependencies and yt
+      shell: bash
+      run: |
+        if [ "${{ matrix.minimal }}" == "true" ]; then
+          export MINIMAL=1
+        fi
+        source ./tests/ci_install.sh
     - name: Run Tests
-      run: python -m nose -c nose_unit.cfg --traverse-namespace
+      run: |
+        if [ "${{ matrix.answer-tests }}" == "true" ] then:
+          export CONFIG=nose_answer.cfg
+        else
+          export CONFIG=nose_unit.cfg
+        fi
+        python -m nose -c $CONFIG --traverse-namespace
 
 #  osx:
 #    runs-on: macos-latest

tests/travis_install.sh → tests/ci_install.sh

@@ -1,6 +1,30 @@
 set -x   # Show which command is being run
 
-echo "Travis build stage: $TRAVIS_BUILD_STAGE_NAME"
+[[ -n ${RUNNER_OS} ]] && export TRAVIS_OS_NAME=${RUNNER_OS}
+
+case ${RUNNER_OS} in
+linux|Linux)
+    sudo apt-get install \
+      libhdf5-serial-dev \
+      libnetcdf-dev \
+      libproj-dev \
+      proj-data \
+      proj-bin \
+      libgeos-dev \
+      libopenmpi-dev
+    ;;
+osx|macOS)
+    sudo mkdir -p /usr/local/man
+    sudo chown -R "${USER}:admin" /usr/local/man
+    HOMEBREW_NO_AUTO_UPDATE=1 brew install hdf5 proj geos open-mpi netcdf ccache
+    ;;
+esac
+
+mkdir -p $HOME/.config/yt
+echo "[yt]" > $HOME/.config/yt/ytrc
+echo "suppressStreamLogging = True" >> $HOME/.config/yt/ytrc
+cat $HOME/.config/yt/ytrc
+cp tests/matplotlibrc .
 
 # Step 1: pre-install required packages
 if [[ "${RUNNER_OS}" == "Windows" ]] && [[ $MINIMAL != 1 ]]; then
@@ -16,8 +40,6 @@ if [[ "${RUNNER_OS}" == "Windows" ]] && [[ $MINIMAL != 1 ]]; then
     conda info -a
     conda install --yes -c conda-forge $CYTHON $NUMPY $CARTOPY $H5PY $MATPLOTLIB $SCIPY
 else
-    # ccache -s
-    # Upgrade pip and setuptools and wheel to get clean install
     python -m pip install --upgrade pip
     python -m pip install --upgrade wheel
     python -m pip install --upgrade setuptools