Run clang-format and cmake-format on CI

.github/workflows/ci.yml

@@ -109,6 +109,14 @@ jobs:
       - name: Run yamllint on workflows
         run: |
           python3 -m yamllint -d "{extends: default, rules: {document-start: {present: false}, line-length: disable, truthy: {check-keys: false}}}" .
+      - name: Run clang-format on C++ files
+        run: |
+          wget https://raw.githubusercontent.com/FEniCS/dolfinx/main/.clang-format
+          find . -type f \( -name "*.cpp" -o -name "*.h" \) | xargs clang-format --dry-run --Werror
+      - name: Run cmake-format on cmake files
+        run: |
+          wget https://raw.githubusercontent.com/FEniCS/dolfinx/main/.cmake-format
+          find . -type f \( -name "*.cmake" -o -name "*.cmake.in" -o -name "CMakeLists.txt" \) | xargs cmake-format --check
       - name: Run documentation generation
         if: startsWith(matrix.backend, 'none') != true
         run: |

.gitignore

@@ -8,6 +8,8 @@
 *.nbi
 *.py[cod]
 *.xdmf
+.clang-format
+.cmake-format
 .coverage*
 .eggs
 .pytest_cache

pyproject.toml

@@ -61,6 +61,8 @@ docs = [
     "sphinx"
 ]
 lint = [
+    "clang-format",
+    "cmakelang",
     "isort",
     "mypy",
     "ruff",