#!/usr/bin/env bash

brt_headers() {
  local url="${1:-}"
  if [[ -z "$url" ]]; then
    brt_error "Usage: brt -headers <url>"
    exit 1
  fi
  brt_require curl
  [[ "$url" =~ ^https?:// ]] || url="https://${url}"
  brt_info "Headers for ${url}"
  curl -sSI "$url" | sed 's/\r$//'
}