import io
import subprocess
import whoowns
import argparse

def main():
  parser = argparse.ArgumentParser(description="Generates a CSV of all files in the repo and which codeowner is set.")
  parser.add_argument("out")
  args = parser.parse_args()

  owners = whoowns.get_owners('./CODEOWNERS')

  file = io.open(args.out, "w", encoding="utf-8")
  file.write("path,owners\n")

  all_files = subprocess.run(["git", "ls-files"], capture_output=True, text=True).stdout.split('\n')
  for path in all_files:
    file_owners = owners.of(path)
    file.write("%s,%s\n" % (path, " ".join(map(lambda o: o[1], file_owners))))

  file.flush()
  file.close()


if __name__ == "__main__":
    main()