CMake

Remove leftover references to travis and LGTM #15

	name: CMake
	permissions:
	contents: read

	on:
	push:
	# Always trigger CI on push
	pull_request:
	branches: [ $default-branch ]


	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
	buildtype: [Debug, Release]
	env:
	BUILD_TYPE: ${{ matrix.buildtype }}
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: 'recursive'

	- name: Configure CMake
	# Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
	# See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
	run: cmake -B ${{runner.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}

	- name: Build
	# Build your program with the given configuration
	run: cmake --build ${{runner.workspace}}/build --config ${{env.BUILD_TYPE}}

	- name: Test
	working-directory: ${{runner.workspace}}/build
	# Execute tests defined by the CMake configuration.
	# See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
	run: ctest -C ${{env.BUILD_TYPE}}

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