on: [push]

env:
  BUILD_TYPE: Release

jobs:
  build:
    runs-on: ${{matrix.os}}
    strategy:
      matrix:
        os: [ubuntu-18.04, macos-10.15, windows-2019]

    steps:
    - uses: actions/checkout@v2

    - name: Create Build Environment
      run: cmake -E make_directory ${{runner.workspace}}/build

    - name: Configure CMake
      # Use a bash shell so we can use the same syntax for environment variable
      # access regardless of the host operating system
      shell: bash
      working-directory: ${{runner.workspace}}/build
      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE

    - name: Build
      working-directory: ${{runner.workspace}}/build
      shell: bash
      run: cmake --build . --config $BUILD_TYPE

    - name: Test
      working-directory: ${{runner.workspace}}/build
      shell: bash
      run: ctest -C $BUILD_TYPE