git-files

#!/bin/bash 

usage() {
  printf '%s\n' "Usage: git-files [-h]
git-files lists the files affected by a PR in a git repository.

where:
  -h, --help  - show this help text"
}

main() {
  base_branch="$(gh pr status --json baseRefName --jq .currentBranch.baseRefName)"
  git diff --name-only "$base_branch" \
    | grep -v '^vendor/' # exclude vendor directory
}

# Option parsing
declare PARAMS=""
while (( "$#" )); do
  case $1 in
    -h|--help)  # display help message
      usage
      exit 1
      ;;
    --)  # End argument parsing
      shift
      break
      ;;
    -*|--*)  # unsupported flags
      echo "Unsupported flag: $1" >&2
      usage
      exit 1
      ;;
    *)  # preserve positional arguments
      PARAMS="${PARAMS} $1"
      shift
      ;;
  esac
done

# set positional arguments in their proper place
eval set -- "${PARAMS}"

# Freeze configuration flags
readonly SOME_FLAG

main