ci: tidy and format checks

.github/actions/setup-compilers/action.yml

@@ -0,0 +1,21 @@
+name: "Setup compilers"
+description: "Setup compilers and build tools"
+inputs:
+  clang:
+    required: false
+    default: "18"
+  gcc:
+    required: false
+    default: "14"
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      run: |
+        sudo apt update
+        sudo add-apt-repository universe multiverse
+        sudo apt update
+        sudo apt install gcc-${{ inputs.gcc }} g++-${{ inputs.gcc }}
+        wget https://apt.llvm.org/llvm.sh
+        chmod u+x llvm.sh
+        sudo ./llvm.sh ${{ inputs.clang }}

.github/workflows/cmake-multi-platform.yml

@@ -7,11 +7,29 @@ on:
     branches: [ "main" ]
 
 jobs:
+  tidy:
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup compilers
+      uses: ./.github/actions/setup-compilers
+    - name: Run clang tidy
+      run: make tidy CI=1
+
+  format:
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup compilers
+      uses: ./.github/actions/setup-compilers
+    - name: Run clang format
+      run: make format CI=1
+
   build:
     runs-on: ${{ matrix.os }}
 
     strategy:
-      
+
       fail-fast: false
       matrix:
         os: [ubuntu-24.04]
@@ -35,16 +53,7 @@ jobs:
         echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT"
     - name: Setup compilers
       id: compilers
-      shell: bash
-      run: |
-        sudo apt update
-        sudo add-apt-repository universe multiverse
-        sudo apt update
-        sudo apt install gcc-14 g++-14
-        wget https://apt.llvm.org/llvm.sh
-        chmod u+x llvm.sh
-        sudo ./llvm.sh 18
-
+      uses: ./.github/actions/setup-compilers
     - 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
@@ -66,4 +75,4 @@ jobs:
       working-directory: ${{ steps.strings.outputs.build-output-dir }}
       # Execute tests defined by the CMake configuration. Note that --build-config is needed because the default Windows generator is a multi-config generator (Visual Studio generator).
       # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
-      run: ctest --build-config ${{ matrix.build_type }}
+      run: ctest --build-config ${{ matrix.build_type }}

Makefile

@@ -1,17 +1,24 @@
 MAKEFILE_DIR = $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
 TESTS_BIN = $(MAKEFILE_DIR)/build/cserver_tests
 
+CC = clang
 CXX = clang++
 
 CMAKE_CMD ?= cmake
 CMAKE_BUILD_TYPE ?= Debug
-CMAKE_GENERATOR ?= Ninja
+
+ifdef CI
+  CMAKE_GENERATOR ?= "Unix Makefiles"
+else
+  CMAKE_GENERATOR ?= Ninja
+endif
 
 CMAKE_FLAGS += -DCMAKE_CXX_COMPILER=$(CXX) \
-			   -DCMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE) \
-			   -DCMAKE_EXPORT_COMPILE_COMMANDS=1 \
-			   -DENABLE_TESTS=1 \
-         -DENABLE_EXAMPLES=1
+               -DCMAKE_C_COMPILER=$(CC) \
+               -DCMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE) \
+               -DCMAKE_EXPORT_COMPILE_COMMANDS=1 \
+               -DENABLE_TESTS=1 \
+               -DENABLE_EXAMPLES=1
 
 # Only need to handle Ninja here.
 # Make will inherit the VERBOSE variable, and the -j, -l, and -n flags.
@@ -28,6 +35,12 @@ else
 	BUILD_TOOL = $(MAKE)
 endif
 
+ifdef CI
+  FORMAT_FLAGS = -n --Werror
+else
+  FORMAT_FLAGS = -i
+endif
+
 all: $(TESTS_BIN)
 
 build/.ran-cmake:
@@ -42,8 +55,8 @@ cmake:
 	$(MAKE) build/.ran-cmake
 
 format:
-	clang-format -Werror -i \
-    $(shell find include -name *.hpp) \
+	clang-format $(FORMAT_FLAGS) \
+		$(shell find include -name *.hpp) \
 		$(shell find examples -name *.cpp) \
 		$(shell find tests -name *.cpp)
 
@@ -53,11 +66,15 @@ clean:
 distclean:
 	rm -rf build
 
-# Test
-
 test: $(TESTS_BIN)
 	$(TESTS_BIN)
 
+tidy: build/.ran-cmake
+	clang-tidy -p build \
+		$(shell find include -name *.hpp) \
+		$(shell find examples -name *.cpp) \
+		$(shell find tests -name *.cpp)
+
 FORCE: ;
 
 .PHONY: all cmake test format clean distclean