From e99cd4d19586f5def7c9fb7db473299db8a19508 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <anonymous.maarten@gmail.com>
Date: Wed, 31 Jan 2024 05:05:06 +0100
Subject: [PATCH] cmake+ci: run clang-tidy

---
 .github/workflows/build.yml | 16 +++++++++-------
 CMakeLists.txt              |  8 ++++++++
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3f81642..55facfae 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,18 +14,20 @@ jobs:
       matrix:
         toolchain:
         - { name: 'MSVC',           shell: 'sh',        setup-cmake: true, setup-ninja: true, setup-msvc: true }
-        - { name: 'msys2 mingw32',  shell: 'msys2 {0}', setup-msys2: true }
+        - { name: 'msys2 mingw32',  shell: 'msys2 {0}', msystem: mingw32, msys-env: mingw-w64-i686,        clang-tidy: true }
+        - { name: 'msys2 clang32',  shell: 'msys2 {0}', msystem: clang32, msys-env: mingw-w64-clang-i686,  clang-tidy: true }
 
     steps:
       - name: Set up MSYS2
-        if: matrix.toolchain.setup-msys2
+        if: ${{ !!matrix.toolchain.msystem }}
         uses: msys2/setup-msys2@v2
         with:
-          msystem: mingw32
+          msystem: ${{ matrix.toolchain.msystem }}
           install: >-
-            mingw-w64-i686-cc
-            mingw-w64-i686-cmake
-            mingw-w64-i686-ninja
+            ${{ matrix.toolchain.msys-env }}-cc
+            ${{ matrix.toolchain.msys-env }}-cmake
+            ${{ matrix.toolchain.msys-env }}-ninja
+            ${{ matrix.toolchain.msys-env }}-clang-tools-extra
 
       - name: Setup cmake
         if: matrix.toolchain.setup-cmake
@@ -45,7 +47,7 @@ jobs:
 
       - name: Build
         run: |
-          cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -GNinja -Werror=dev
+          cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -GNinja -Werror=dev -DENABLE_CLANG_TIDY=${{ !!matrix.toolchain.clang-tidy }}
           cmake --build build
 
   build:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index eeee76d5..36dcb9d7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,14 @@ cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
 
 project(isle CXX)
 
+set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)
+option(ENABLE_CLANG_TIDY "Enable clang-tidy")
+if (ENABLE_CLANG_TIDY)
+    find_program(CLANG_TIDY_BIN NAMES "clang-tidy")
+    set(CMAKE_C_CLANG_TIDY "${CLANG_TIDY_BIN}")
+    set(CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_BIN}")
+endif()
+
 math(EXPR bits "8 * ${CMAKE_SIZEOF_VOID_P}")
 message(STATUS "Building ${bits}-bit LEGO Island")
 if (NOT bits EQUAL 32)