#!/bin/sh
set -eu
cd "$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
if command -v shasum >/dev/null 2>&1; then
  shasum -a 256 -c CHECKSUMS.sha256
elif command -v sha256sum >/dev/null 2>&1; then
  sha256sum -c CHECKSUMS.sha256
else
  printf '%s\n' 'No SHA-256 verifier found. Install or use an approved checksum utility.' >&2
  exit 2
fi