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

require_cmd() {
  local cmd="$1"
  if ! command -v "${cmd}" >/dev/null 2>&1; then
    echo "Error: ${cmd} is required but not installed."
    exit 1
  fi
}

script_dir() {
  cd "$(dirname "${BASH_SOURCE[0]}")" && pwd
}

repo_root() {
  local dir
  dir="$(script_dir)"
  cd "${dir}/.." && pwd
}