openpilot_comma/tools/cabana/dbc/generate_dbc_json.py

#!/usr/bin/env python3
import argparse
import json

from openpilot.selfdrive.car.fingerprints import MIGRATION
from openpilot.selfdrive.car.values import PLATFORMS


def generate_dbc_json() -> str:
  dbc_map = {platform.name: platform.config.dbc_dict['pt'] for platform in PLATFORMS.values() if platform != "MOCK"}

  for m in MIGRATION:
    if MIGRATION[m] in dbc_map:
      dbc_map[m] = dbc_map[MIGRATION[m]]

  return json.dumps(dict(sorted(dbc_map.items())), indent=2)


if __name__ == "__main__":
  parser = argparse.ArgumentParser(description="Generate mapping for all car fingerprints to DBC names and outputs json file",
                                   formatter_class=argparse.ArgumentDefaultsHelpFormatter)

  parser.add_argument("--out", required=True, help="Generated json filepath")
  args = parser.parse_args()

  with open(args.out, 'w') as f:
    f.write(generate_dbc_json())
  print(f"Generated and written to {args.out}")