add CAR.print_debug (#31652)

print debug

selfdrive/car/__init__.py

@@ -1,5 +1,5 @@
 # functions common among cars
-from collections import namedtuple
+from collections import defaultdict, namedtuple
 from dataclasses import dataclass
 from enum import IntFlag, ReprEnum
 from dataclasses import replace
@@ -301,3 +301,15 @@ class Platforms(str, ReprEnum):
   @classmethod
   def with_flags(cls, flags: IntFlag) -> set['Platforms']:
     return {p for p in cls if p.config.flags & flags}
+
+  @classmethod
+  def print_debug(cls, flags):
+    platforms_with_flag = defaultdict(list)
+    for flag in flags:
+      for platform in cls:
+        if platform.config.flags & flag:
+          assert flag.name is not None
+          platforms_with_flag[flag.name].append(platform)
+
+    for flag, platforms in platforms_with_flag.items():
+      print(f"{flag:20s}: {', '.join(p.name for p in platforms)}")

selfdrive/car/subaru/values.py

@@ -262,3 +262,7 @@ FW_QUERY_CONFIG = FwQueryConfig(
 
 CAR_INFO = CAR.create_carinfo_map()
 DBC = CAR.create_dbc_map()
+
+
+if __name__ == "__main__":
+  CAR.print_debug(SubaruFlags)