terraform-docs githook script

#!/usr/bin/env bash
set -eu

for file in "$@"; do
  failed=0
  dir=$(dirname ${file})
  if ! cmp -s <(terraform-docs md ${dir}) "${dir}/README.md"; then
    echo "Need to update Terraform docs for: "
    echo "${dir}"
    echo "Run: terraform-docs md ${dir} > ${dir}/README.md"
    failed=1
  fi

  if [ $failed -eq 1 ]; then
    exit 1
  fi
done