Add some GitHub action

.github/workflows/main.yml

@@ -0,0 +1,30 @@
+name: Main
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+env:
+  BUILD_TYPE: Debug
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install dependencies
+      run: |
+           sudo apt install -y clang-format
+
+    - name: Configure CMake
+      run: cmake ${{github.workspace}}/src -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build
+
+    - name: Check clang-format
+      run: find src -name '*.cpp' -o -name '*.h' | xargs clang-format --dry-run --Werror

.gitignore

@@ -0,0 +1 @@
+build