Merge pull request #2963 from Xarthisius/gha

Migrate from Travis to GitHub Actions

.github/workflows/build-test.yaml

@@ -0,0 +1,56 @@
+name: Build and Test
+
+on: [push, pull_request]
+
+defaults:
+  run:
+    shell: bash
+
+env: 
+  HOMEBREW_NO_AUTO_UPDATE: 1
+
+jobs:
+
+  build:
+    strategy:
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-18.04]
+        python-version: [3.8]
+        dependencies: [full]
+        tests-type: [unit]
+        include:
+          - os: ubuntu-18.04
+            python-version: 3.6
+            dependencies: minimal
+            tests-type: unit
+          - os: ubuntu-18.04
+            python-version: 3.7
+            dependencies: full
+            tests-type: answer
+
+    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
+    - uses: s-weigand/setup-conda@v1
+      if: matrix.os == 'windows-latest'
+      with:
+        update-conda: true
+        conda-channels: conda-forge
+        activate-conda: true
+        python-version: ${{matrix.python-version}}
+    - name: Install dependencies and yt
+      shell: bash
+      env:
+        dependencies: ${{ matrix.dependencies }}
+      run: source ./tests/ci_install.sh
+    - name: Run Tests
+      env:
+        testsuite: ${{ matrix.tests-type }}
+      run: python -m nose -c nose_${testsuite}.cfg --traverse-namespace

tests/ci_install.sh

@@ -0,0 +1,70 @@
+set -x   # Show which command is being run
+
+case ${RUNNER_OS} in
+linux|Linux)
+    sudo apt-get -qqy install \
+      libhdf5-serial-dev \
+      libnetcdf-dev \
+      libproj-dev \
+      proj-data \
+      proj-bin \
+      libgeos-dev \
+      libopenmpi-dev
+    ;;
+osx|macOS)
+    sudo mkdir -p /usr/local/man
+    sudo chown -R "${USER}:admin" /usr/local/man
+    HOMEBREW_NO_AUTO_UPDATE=1 brew install hdf5 proj geos open-mpi netcdf ccache
+    ;;
+esac
+
+# Disable excessive output
+mkdir -p $HOME/.config/yt
+echo "[yt]" > $HOME/.config/yt/ytrc
+echo "suppressStreamLogging = True" >> $HOME/.config/yt/ytrc
+cat $HOME/.config/yt/ytrc
+# Sets default backend to Agg
+cp tests/matplotlibrc .
+
+# Step 1: pre-install required packages
+if [[ "${RUNNER_OS}" == "Windows" ]] && [[ ${dependencies} != "minimal" ]]; then
+    # Install some dependencies using conda (if not doing a minimal run)
+    CYTHON=$(grep cython tests/test_prerequirements.txt)
+    NUMPY=$(grep numpy tests/test_prerequirements.txt)
+
+    CARTOPY=$(grep cartopy tests/test_requirements.txt)
+    H5PY=$(grep h5py tests/test_requirements.txt)
+    MATPLOTLIB=$(grep matplotlib tests/test_requirements.txt)
+    SCIPY=$(grep scipy tests/test_requirements.txt)
+    conda config --set always_yes yes
+    conda info -a
+    conda install --quiet --yes -c conda-forge \
+      $CYTHON $NUMPY $CARTOPY $H5PY $MATPLOTLIB $SCIPY
+else
+    python -m pip install --upgrade pip
+    python -m pip install --upgrade wheel
+    python -m pip install --upgrade setuptools
+fi
+
+# Step 2: install required packages (depending on whether the build is minimal)
+if [[ ${dependencies} == "minimal" ]]; then
+    # Ensure numpy and cython are installed so dependencies that need to be built
+    # don't error out
+    # The first numpy to support py3.6 is 1.12, but numpy 1.13 matches
+    # unyt so we'll match it here.
+    python -m pip install numpy==1.13.3 cython==0.26.1
+    python -m pip install -r tests/test_minimal_requirements.txt
+else
+    # Getting cartopy installed requires getting cython and numpy installed
+    # first; this is potentially going to be fixed with the inclusion of
+    # pyproject.toml in cartopy.
+    # These versions are pinned, so we will need to update/remove them when
+    # the hack is no longer necessary.
+    python -m pip install -r tests/test_prerequirements.txt
+    CFLAGS="$CFLAGS -DACCEPT_USE_OF_DEPRECATED_PROJ_API_H" python -m pip install -r tests/test_requirements.txt
+fi
+
+# Step 3: install yt
+python -m pip install -e .
+
+set +x