#!/usr/bin/env bash
set -euo pipefail

if [[ $# -lt 2 ]]; then
  echo "usage: $0 \"type: message\" <path...>" >&2
  exit 2
fi

msg="$1"
shift

git add -- "$@"
if git diff --cached --quiet; then
  echo "nothing to commit" >&2
  exit 1
fi

git commit -m "$msg"