CI: adding GitHub Actions runners

.github/workflows/ci.yml

@@ -0,0 +1,85 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+    - master
+
+jobs:
+
+  standard:
+
+    strategy:
+      fail-fast: false
+      matrix:
+        runs-on: [ubuntu-latest, macos-latest, windows-latest]
+
+    defaults:
+      run:
+        shell: bash -l {0}
+
+    name: ${{ matrix.runs-on }} • x64 ${{ matrix.args }}
+    runs-on: ${{ matrix.runs-on }}
+
+    steps:
+
+    - name: Basic GitHub action setup
+      uses: actions/checkout@v2
+
+    - name: Set conda environment
+      uses: mamba-org/provision-with-micromamba@main
+      with:
+        environment-name: myenv
+        environment-file: environment-dev.yml
+        cache-env: true
+
+    - name: Configure using CMake
+      run: cmake -Bbuild -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DPYTHON_EXECUTABLE=`which python` -DDOWNLOAD_GTEST=ON
+
+    - name: Install
+      working-directory: build
+      run: make install
+
+    - name: Build xtensor-python
+      working-directory: build
+      run: make test_xtensor_python
+
+    - name: Test xtensor-python
+      working-directory: build/test
+      run: ./test_xtensor_python
+
+    - name: Test xtensor-python (Python)
+      run: py.test -s
+
+    - name: Example - readme 1
+      working-directory: docs/source/examples/readme_example_1
+      run: |
+        cmake -Bbuild -DPython_EXECUTABLE=`which python`
+        cd build
+        cmake --build .
+        cp ../example.py .
+        python example.py
+        cd ..
+
+    - name: Example - Copy 'cast'
+      working-directory: docs/source/examples/copy_cast
+      run: |
+        cmake -Bbuild -DPython_EXECUTABLE=`which python`
+        cd build
+        cmake --build .
+        cp ../example.py .
+        python example.py
+        cd ..
+
+    - name: Example - SFINAE
+      working-directory: docs/source/examples/sfinae
+      run: |
+        cmake -Bbuild -DPython_EXECUTABLE=`which python`
+        cd build
+        cmake --build .
+        cp ../example.py .
+        python example.py
+        cd ..
+