Enable github actions (#166)

Enable github actions (linux + macos)

.github/workflows/cmake.yml

@@ -0,0 +1,42 @@
+name: build & run tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        build-type: [Release] # Debug
+        lua: ["lua 5.1", "lua 5.2", "lua 5.3", "luajit 2.0"]
+        os: ["macos-latest", "ubuntu-latest"] # "windows-latest"
+        include:
+          - os: macos-latest
+            macos_build_target: 10.0
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: recursive
+    - uses: actions/setup-python@v2
+      with:
+        python-version: '3.8'
+    - name: Setup env
+      env:
+        MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macos_build_target }}
+      run: |
+        pip install hererocks
+        hererocks lua-pkg --${{ matrix.lua }} -rlatest
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.build-type}} -DLUA_INCLUDE_DIR="${{github.workspace}}/lua-pkg/include"
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{matrix.build-type}}
+    - name: Test
+      working-directory: ${{github.workspace}}/build
+      run: |
+        source ${{github.workspace}}/lua-pkg/bin/activate
+        STRESS=1 lua ../tests/lua/run_tests