When clang-tidy tool is missing in the system, the FileNotFoundError exception is raised in the program reporting a stack trace to the user: $ ./scripts/clang-tools/run-clang-tools.py clang-tidy ./compile_commands.json multiprocessing.pool.RemoteTraceback: """ Traceback (most recent call last): File "/usr/lib64/python3.8/multiprocessing/pool.py", line 125, in worker result = (True, func(*args, **kwds)) File "/usr/lib64/python3.8/multiprocessing/pool.py", line 48, in mapstar return list(map(*args)) File "./scripts/clang-tools/run-clang-tools.py", line 54, in run_analysis p = subprocess.run(["clang-tidy", "-p", args.path, checks, entry["file"]], File "/usr/lib64/python3.8/subprocess.py", line 489, in run with Popen(*popenargs, **kwargs) as process: File "/usr/lib64/python3.8/subprocess.py", line 854, in __init__ self._execute_child(args, executable, preexec_fn, close_fds, File "/usr/lib64/python3.8/subprocess.py", line 1702, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) FileNotFoundError: [Errno 2] No such file or directory: 'clang-tidy' """ The patch adds more user-friendly information about missing tool by checking the presence of clang-tidy using `command -v` at the beginning of the script: $ ./scripts/clang-tools/run-clang-tools.py clang-tidy ./compile_commands.json Command 'clang-tidy' is missing in the system Signed-off-by: Maciej Falkowski <maciej.falkowski9@xxxxxxxxx> Link: https://github.com/ClangBuiltLinux/linux/issues/1342 --- scripts/clang-tools/run-clang-tools.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/clang-tools/run-clang-tools.py b/scripts/clang-tools/run-clang-tools.py index fa7655c7cec0..d34eaf5a0ee5 100755 --- a/scripts/clang-tools/run-clang-tools.py +++ b/scripts/clang-tools/run-clang-tools.py @@ -60,6 +60,11 @@ def run_analysis(entry): def main(): + exitcode = subprocess.getstatusoutput('command -v clang-tidy')[0] + if exitcode == 1: + print("Command 'clang-tidy' is missing in the system", file=sys.stderr) + sys.exit(127) + args = parse_arguments() lock = multiprocessing.Lock() -- 2.26.3