clang-tidy: exclude protobuf sources

Signed-off-by: Patrick Creighton <[email protected]>

Author: patrick-5546

ament_clang_tidy/ament_clang_tidy/main.py

@@ -162,6 +162,11 @@ def is_gtest_source(file_name):
         def is_unittest_source(package, file_path):
             return ('%s/test/' % package) in file_path
 
+        def is_protobuf_source(file_name):
+            if(file_name.endswith(".pb.cc") or file_name.endswith(".pb.h")):
+                return True
+            return False
+
         def start_subprocess(full_cmd):
             output = ''
             try:
@@ -188,6 +193,10 @@ def start_subprocess(full_cmd):
             if is_unittest_source(package_name, item['file']):
                 continue
 
+            # exclude auto-generated protobuf sources from being checked by clang-tidy
+            if is_protobuf_source(os.path.basename(item['file'])):
+                continue
+
             files.append(item['file'])
             full_cmd = cmd + [item['file']]
             async_outputs.append(pool.apply_async(start_subprocess, (full_cmd,)))