The script will extract the teams from the CODEOWNERS file, then for each team the script will recursively walk the through the directories that the team owns, and it will count the number of files that match the provided extensions

Example usuage:

extension-analyzer /home/andrew/projects/example jsx? tsx?

Example output

{
  "@example/team-1": {
    "tsx?": 27,
    "jsx?": 1
  },
  "@example/team-2": {
    "jsx?": 380,
    "tsx?": 149
  },
}