#!/bin/sh
set -eu

if [ "$#" -ne 1 ]; then
  echo "用法：$0 <backup-directory>" >&2
  exit 2
fi

TARGET=$(CDPATH= cd -- "$1" && pwd)
for file in SHA256SUMS postgres.dump postgres.contents minio-data.tar.gz manifest.txt; do
  if [ ! -f "$TARGET/$file" ]; then
    echo "备份缺少文件：$file" >&2
    exit 3
  fi
done

(
  cd "$TARGET"
  sha256sum -c SHA256SUMS
)

echo "备份校验通过：$TARGET"