clang-tidy: auto-exclude submodules and third-party code

Automatically generate the clang-tidy exclusion list from .gitmodules
so new submodules are excluded without manual intervention.

Changes:
- Makefile: Generate CLANG_TIDY_SUBMODULES from .gitmodules paths
- Makefile: Add CLANG_TIDY_EXCLUDE_EXTRA for manual exclusions:
  - src/systemcmds/tests (test code, looser style allowed)
  - src/examples (educational code, not production)
  - src/modules/gyro_fft/CMSIS_5 (vendored ARM DSP library)
- Delete src/systemcmds/tests/.clang-tidy (stale since 2019)
- Delete src/modules/gyro_fft/CMSIS_5/.clang-tidy (redundant)

Rationale: Submodules and vendored code should be linted in their
upstream repositories, not here. This reduces noise and focuses
clang-tidy on code that PX4 maintainers actually edit.

Contributors adding vendored (non-submodule) third-party code should
add their path to CLANG_TIDY_EXCLUDE_EXTRA in the Makefile.

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
This commit is contained in:
Ramon Roche
2026-02-12 21:20:27 -08:00
parent dc4aa749d3
commit d196d37ef2
3 changed files with 14 additions and 241 deletions
+14 -2
View File
@@ -492,13 +492,25 @@ px4_sitl_default-clang:
@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && cmake "$(SRC_DIR)" $(CMAKE_ARGS) -G"$(PX4_CMAKE_GENERATOR)" -DCONFIG=px4_sitl_default -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
@$(PX4_MAKE) -C "$(SRC_DIR)"/build/px4_sitl_default-clang
# Paths to exclude from clang-tidy (auto-generated from .gitmodules + manual additions):
# - All submodules (external code we consume, not edit)
# - Test code (allowed looser style)
# - Example code (educational, not production)
# - Vendored third-party code (e.g., CMSIS_5)
#
# To add manual exclusions, append to CLANG_TIDY_EXCLUDE_EXTRA below.
# Submodules are automatically excluded - no action needed when adding new ones.
CLANG_TIDY_SUBMODULES := $(shell git config --file .gitmodules --get-regexp path | awk '{print $$2}' | tr '\n' '|' | sed 's/|$$//')
CLANG_TIDY_EXCLUDE_EXTRA := src/systemcmds/tests|src/examples|src/modules/gyro_fft/CMSIS_5
CLANG_TIDY_EXCLUDE := $(CLANG_TIDY_SUBMODULES)|$(CLANG_TIDY_EXCLUDE_EXTRA)
clang-tidy: px4_sitl_default-clang
@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -p .
@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -exclude="$(CLANG_TIDY_EXCLUDE)" -p .
# to automatically fix a single check at a time, eg modernize-redundant-void-arg
# % run-clang-tidy-4.0.py -fix -j4 -checks=-\*,modernize-redundant-void-arg -p .
clang-tidy-fix: px4_sitl_default-clang
@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -fix -p .
@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -exclude="$(CLANG_TIDY_EXCLUDE)" -fix -p .
# TODO: Fix cppcheck errors then try --enable=warning,performance,portability,style,unusedFunction or --enable=all
cppcheck: px4_sitl_default