ghcr.sh

#!/bin/bash
set -euo pipefail

if [[ $# -lt 1 || -z "${1:-}" ]]; then
  echo "usage: ${0##*/} <github-username>" >&2
  exit 1
fi

account=$1

if ! data=$(gh api "users/$account" 2>/dev/null); then
  echo "error: failed to fetch user '$account' (check gh auth status)" >&2
  exit 1
fi

id=$(jq -r '.id // empty' <<<"$data")
name=$(jq -r '.name // .login // empty' <<<"$data")

if [[ -z "$id" || -z "$name" ]]; then
  echo "error: user '$account' not found or response malformed" >&2
  exit 1
fi

printf 'Co-authored-by: %s <%s+%s@users.noreply.github.com>\n' "$name" "$id" "$account"