mirror of
https://github.com/wolfydw/backup_OBS.git
synced 2026-05-08 06:37:02 +08:00
Initial backup
This commit is contained in:
Codex
@@ -0,0 +1,466 @@
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#!/usr/bin/env bash
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# 备份并上传到华为云 OBS
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# - 从同目录 env.conf 加载配置，支持命令行覆盖
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# - 打包多目录（支持 pigz），生成 SHA256 校验，obsutil 分片/并发上传
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# - 上传 .tar.gz 以及 .tar.gz.sha256，并下载远端 .sha256 比对确保完整性
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# - 成功/失败写入日志并 Telegram 通知（Markdown）
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# - 支持 --dry-run / --verify / --keep-local / --concurrency / --rate / --label / --sse
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# 退出码：0 成功；2 配置缺失；3 打包失败；4 上传失败；5 校验失败
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set -Eeuo pipefail
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#############################
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# 通用工具函数
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#############################
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# 兼容性更好的脚本路径解析（在 set -u 下也安全）
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SCRIPT_PATH="${BASH_SOURCE[0]:-$0}"
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SCRIPT_DIR="$(cd "$(dirname -- "$SCRIPT_PATH")" && pwd -P)"
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export PATH="$SCRIPT_DIR:$PATH"
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cd "$SCRIPT_DIR"
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# 记录日志到文件与终端
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log_ts() { date '+%Y-%m-%d %H:%M:%S'; }
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LOG_PREFIX="[BACKUP]"
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log() {
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local level="$1"; shift
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local line
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line="$(log_ts) ${LOG_PREFIX}[$level] $*"
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echo "$line" | tee -a "${LOG_FILE:-./backup.log}"
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}
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#############################
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# Telegram 通知（Markdown）
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#############################
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send_telegram() {
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local status="${1-}" # success | error | dryrun
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local reason="${2-}" # 错误原因（可选）
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local error_log="${3-}" # 详细错误日志（可选）
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if [[ -z "${TG_BOT_TOKEN:-}" || -z "${TG_USER_ID:-}" ]]; then
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log "INFO" "未配置Telegram通知，跳过发送"
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return 0
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fi
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local api="https://api.telegram.org/bot${TG_BOT_TOKEN}/sendMessage"
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local current_date; current_date="$(date +'%Y-%m-%d %H:%M:%S')"
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local message
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if [[ "$status" == "success" ]]; then
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message="*备份成功通知*\n\n"
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message+="备份主机：${LABEL}\n"
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message+="备份时间：${current_date}\n"
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message+="备份内容：${BACKUP_DIR}\n"
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message+="文件大小：${BACKUP_SIZE_HUMAN}\n"
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message+="存储位置：obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/${ARCHIVE_BASE}\n"
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message+="打包用时：${PACK_SECONDS}s\n"
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message+="上传用时：${UP_SECONDS}s\n"
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message+="平均速率：${SPEED_HUMAN}"
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elif [[ "$status" == "dryrun" ]]; then
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message="*备份自检（Dry-run）*\n\n"
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message+="备份主机：${LABEL}\n"
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message+="备份时间：${current_date}\n"
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message+="备份内容：${BACKUP_DIR}\n"
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message+="归档名称：${ARCHIVE_BASE}\n"
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message+="文件大小：${BACKUP_SIZE_HUMAN}\n"
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message+="打包用时：${PACK_SECONDS}s"
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else
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message="*备份失败通知*\n\n${LABEL} 备份失败！"
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if [[ -n "$reason" ]]; then
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message+="\n原因：${reason}"
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fi
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if [[ -n "$error_log" ]]; then
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message+="\n错误日志：\n\`\`\`${error_log}\`\`\`"
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fi
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fi
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# 仅把字面 \n 转成 %0A；保留其他字符原样
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local encoded_message=${message//\\n/%0A}
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local response
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response="$(curl -sS -X POST "$api" \
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-d "chat_id=${TG_USER_ID}" \
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-d "parse_mode=Markdown" \
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-d "disable_web_page_preview=true" \
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-d "text=${encoded_message}" 2>&1 || true)"
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if echo "$response" | grep -q '"ok":true'; then
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log "INFO" "Telegram通知发送成功"
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else
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log "WARN" "Telegram通知发送失败: $response"
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fi
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}
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# 失败统一处理（触发 trap）
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on_error() {
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local exit_code=$?
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local line_no=${BASH_LINENO[0]:-}
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log "ERROR" "脚本异常退出（exit=$exit_code, line=${line_no})."
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local tail_log
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tail_log="$(tail -n 80 "${LOG_FILE:-./backup.log}" 2>/dev/null || true)"
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send_telegram "error" "脚本异常退出（exit=${exit_code}, line=${line_no}）" "$tail_log"
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exit "$exit_code"
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}
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trap on_error ERR
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# 命令可用性检查
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need_cmd() {
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command -v "$1" >/dev/null 2>&1 || {
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log "ERROR" "未找到命令：$1"
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return 1
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}
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}
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# 通用重试（指数回退 2^n 秒）
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retry() {
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local max="$1"; shift
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local desc="$1"; shift
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local n=1
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until "$@"; do
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local ec=$?
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if (( n >= max )); then
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log "ERROR" "重试用尽：${desc}（exit=$ec）"
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return "$ec"
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fi
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local backoff=$((2**n))
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log "WARN" "步骤失败，将在 ${backoff}s 后第 $((n+1)) 次重试：${desc}（exit=$ec）"
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sleep "$backoff"
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((n++))
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done
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}
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#############################
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# 加载配置与参数
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#############################
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CONF_FILE="${SCRIPT_DIR}/env.conf"
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if [[ ! -f "$CONF_FILE" ]]; then
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echo "未找到配置文件 ${CONF_FILE}，请先复制/编辑 env.conf" >&2
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exit 2
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fi
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# shellcheck disable=SC1090
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source "$CONF_FILE"
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# 默认参数值（可被命令行覆盖）
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KEEP_LOCAL=false
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DRY_RUN=false
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VERIFY_ONLY=false
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CLI_LABEL=""
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CLI_SSE="none" # none|kms|aes256
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CLI_CONCURRENCY="" # 映射到 -j
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CLI_RATE="" # 速率限制（示例 10MB/s）
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GPG_RECIPIENT=""
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GPG_SYM=false
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usage() {
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cat <<'USAGE'
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用法：
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./backup.sh [--dry-run] [--verify] [--keep-local]
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[--concurrency=N] [--rate=10MB/s]
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[--label=NAME]
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[--sse=none|kms|aes256]
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[--gpg-recipient=KMS_OR_PGP_ID | --gpg-symmetric]
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USAGE
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}
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# 解析参数
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--dry-run) DRY_RUN=true; shift;;
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--verify) VERIFY_ONLY=true; shift;;
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--keep-local) KEEP_LOCAL=true; shift;;
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--concurrency=*) CLI_CONCURRENCY="${1#*=}"; shift;;
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--rate=*) CLI_RATE="${1#*=}"; shift;;
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--label=*) CLI_LABEL="${1#*=}"; shift;;
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--sse=*) CLI_SSE="${1#*=}"; shift;;
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--gpg-recipient=*) GPG_RECIPIENT="${1#*=}"; shift;;
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--gpg-symmetric) GPG_SYM=true; shift;;
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-h|--help) usage; exit 0;;
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*) echo "未知参数：$1"; usage; exit 2;;
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esac
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done
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# 应用 label 覆盖（仅影响远端前缀，不改变本地）
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if [[ -n "$CLI_LABEL" ]]; then
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LABEL="$CLI_LABEL"
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OBS_BACKUP_DIR="backup/${LABEL}"
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fi
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# 并发覆盖
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if [[ -n "$CLI_CONCURRENCY" ]]; then
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OBS_JOBS="$CLI_CONCURRENCY"
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fi
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# 速率（obsutil 具体参数随版本可能不同，这里传递 --rate 或 -limit 的等价形式）
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OBS_RATE_FLAG=""
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if [[ -n "${CLI_RATE:-}" ]]; then
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OBS_RATE_FLAG="--rate=${CLI_RATE}"
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fi
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# 路径与文件
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EXCLUDE_FILE="${SCRIPT_DIR}/exclude.list"
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[[ -f "$EXCLUDE_FILE" ]] || touch "$EXCLUDE_FILE"
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# 基础校验
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: "${OBS_BUCKET:?缺少 OBS_BUCKET}"
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: "${OBS_BACKUP_DIR:?缺少 OBS_BACKUP_DIR}"
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: "${BACKUP_DIR:?缺少 BACKUP_DIR}"
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: "${LOG_FILE:?缺少 LOG_FILE}"
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: "${OBS_PARALLEL:?缺少 OBS_PARALLEL}" "${OBS_JOBS:?缺少 OBS_JOBS}"
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: "${OBS_PARTSIZE:?缺少 OBS_PARTSIZE}" "${OBS_THRESHOLD:?缺少 OBS_THRESHOLD}"
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: "${RETAIN_DAYS:?缺少 RETAIN_DAYS}"
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#############################
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# 依赖检查与自检
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#############################
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need_cmd tar
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need_cmd sha256sum
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need_cmd curl
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need_cmd bash
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if ! command -v obsutil >/dev/null 2>&1; then
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log "ERROR" "未找到 obsutil。请下载 obsutil，并确保其在 PATH 或与脚本同目录。"
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log "ERROR" "首次使用请执行：./obsutil config -interactive"
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exit 2
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fi
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# 严格按要求：配置文件位于 ~/.obsutilconfig
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OBSUTIL_CONFIG_PATH="${HOME}/.obsutilconfig"
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if [[ ! -f "$OBSUTIL_CONFIG_PATH" ]]; then
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log "ERROR" "未检测到 obsutil 配置文件：${OBSUTIL_CONFIG_PATH}"
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log "ERROR" "请先执行：./obsutil config -interactive 完成初始化（AK/SK、Endpoint、默认桶）"
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exit 2
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fi
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#############################
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# verify-only: 远端可用性检查
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#############################
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if $VERIFY_ONLY; then
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log "INFO" "开始远端可用性检查（ls + stat）"
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set +e
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obsutil ls "obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/" > /dev/null 2>&1
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rc_ls=$?
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if (( rc_ls != 0 )); then
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log "ERROR" "obsutil 无法列举 obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/"
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exit 5
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fi
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one_obj="$(obsutil ls "obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/" 2>/dev/null | awk '/obs:\/\//{print $1; exit}')"
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if [[ -n "$one_obj" ]]; then
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obsutil stat "$one_obj" >/dev/null 2>&1 || { log "ERROR" "stat 失败：$one_obj"; exit 5; }
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log "INFO" "远端可访问，示例对象 stat 正常：$one_obj"
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else
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log "INFO" "远端可访问，但当前前缀下没有对象。"
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fi
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exit 0
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fi
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set -e
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#############################
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# 打包准备
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#############################
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# 组装要打包的 -C 与相对路径参数
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build_tar_file_list() {
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local args=()
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for p in $BACKUP_DIR; do
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if [[ ! -e "$p" ]]; then
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log "WARN" "路径不存在，跳过：$p"
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continue
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fi
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local abs; abs="$(readlink -f "$p")"
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local parent; parent="$(dirname "$abs")"
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local base; base="$(basename "$abs")"
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args+=("-C" "$parent" "$base")
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done
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printf '%s\n' "${args[@]}"
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}
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# 粗略空间检查
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check_space() {
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local total=0
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for p in $BACKUP_DIR; do
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[[ -e "$p" ]] || continue
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local sz
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sz=$(du -sb --apparent-size "$p" 2>/dev/null | awk '{s+=$1} END{print s+0}')
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total=$((total + sz))
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done
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local avail
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avail=$(df -P "$SCRIPT_DIR" | awk 'NR==2{print $4}') # KB
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avail=$((avail * 1024))
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local need=$(( total + total/10 + 100*1024*1024 ))
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if (( avail < need )); then
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log "ERROR" "磁盘空间不足。需要约 $need 字节，可用 $avail 字节。"
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return 1
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fi
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}
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log "INFO" "开始备份：bucket=${OBS_BUCKET} prefix=${OBS_BACKUP_DIR} 并发(-j)=${OBS_JOBS} 分片(-p)=${OBS_PARALLEL}"
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check_space || { log "ERROR" "空间检查未通过"; exit 3; }
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TS="$(date +%Y%m%d_%H%M%S)"
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ARCHIVE_BASE="backup_${TS}.tar.gz"
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ARCHIVE_PATH="${SCRIPT_DIR}/${ARCHIVE_BASE}"
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SHA_PATH="${ARCHIVE_PATH}.sha256"
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USE_PIGZ=false
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if command -v pigz >/dev/null 2>&1; then USE_PIGZ=true; fi
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# 打包与压缩
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pack() {
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local start; start=$(date +%s)
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local tar_args; mapfile -t tar_args < <(build_tar_file_list)
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if [[ "${#tar_args[@]}" -eq 0 ]]; then
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log "ERROR" "没有可打包的路径（BACKUP_DIR 均不存在）"
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return 1
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fi
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log "INFO" "开始打包（支持 exclude.list），pigz=${USE_PIGZ}"
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if $USE_PIGZ; then
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tar --warning=no-file-changed --exclude-ignore="$EXCLUDE_FILE" --exclude-from="$EXCLUDE_FILE" \
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-c "${tar_args[@]}" | pigz > "$ARCHIVE_PATH"
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else
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tar --warning=no-file-changed --exclude-ignore="$EXCLUDE_FILE" --exclude-from="$EXCLUDE_FILE" \
|
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-czf "$ARCHIVE_PATH" "${tar_args[@]}"
|
||||
fi
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local end; end=$(date +%s)
|
||||
PACK_SECONDS=$((end - start))
|
||||
PACK_SIZE=$(stat -c '%s' "$ARCHIVE_PATH")
|
||||
log "INFO" "打包完成：$(numfmt --to=iec "$PACK_SIZE") 用时 ${PACK_SECONDS}s"
|
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}
|
||||
|
||||
# 可选：GPG 加密
|
||||
maybe_encrypt() {
|
||||
if [[ -n "$GPG_RECIPIENT" ]]; then
|
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log "INFO" "使用 GPG 收件人加密：$GPG_RECIPIENT"
|
||||
need_cmd gpg
|
||||
gpg --batch --yes --output "${ARCHIVE_PATH}.gpg" --encrypt --recipient "$GPG_RECIPIENT" "$ARCHIVE_PATH"
|
||||
rm -f "$ARCHIVE_PATH"
|
||||
ARCHIVE_PATH="${ARCHIVE_PATH}.gpg"
|
||||
ARCHIVE_BASE="${ARCHIVE_BASE}.gpg"
|
||||
elif $GPG_SYM; then
|
||||
log "INFO" "使用 GPG 对称加密"
|
||||
need_cmd gpg
|
||||
if [[ -n "${GPG_PASSPHRASE:-}" ]]; then
|
||||
gpg --batch --yes --passphrase "$GPG_PASSPHRASE" --symmetric --output "${ARCHIVE_PATH}.gpg" "$ARCHIVE_PATH"
|
||||
else
|
||||
gpg --batch --yes --symmetric --output "${ARCHIVE_PATH}.gpg" "$ARCHIVE_PATH"
|
||||
fi
|
||||
rm -f "$ARCHIVE_PATH"
|
||||
ARCHIVE_PATH="${ARCHIVE_PATH}.gpg"
|
||||
ARCHIVE_BASE="${ARCHIVE_BASE}.gpg"
|
||||
fi
|
||||
}
|
||||
|
||||
# 生成 sha256
|
||||
gen_sha() {
|
||||
sha256sum "$ARCHIVE_PATH" > "$SHA_PATH"
|
||||
log "INFO" "已生成校验文件：${SHA_PATH##*/}"
|
||||
}
|
||||
|
||||
# 构建 obsutil 参数
|
||||
build_obs_flags() {
|
||||
local flags=()
|
||||
flags+=("-f")
|
||||
flags+=("-p=${OBS_PARALLEL}")
|
||||
flags+=("-j=${OBS_JOBS}")
|
||||
flags+=("-ps=${OBS_PARTSIZE}")
|
||||
flags+=("-threshold=${OBS_THRESHOLD}")
|
||||
[[ -n "$OBS_RATE_FLAG" ]] && flags+=("$OBS_RATE_FLAG")
|
||||
case "$CLI_SSE" in
|
||||
aes256|AES256) flags+=("-h=x-obs-server-side-encryption:AES256");;
|
||||
kms|KMS)
|
||||
if [[ -z "${OBS_KMS_KEY_ID:-}" ]]; then
|
||||
log "WARN" "已选择 SSE-KMS，但未设置 OBS_KMS_KEY_ID，将只设置 kms 算法头。"
|
||||
flags+=("-h=x-obs-server-side-encryption:kms")
|
||||
else
|
||||
flags+=("-h=x-obs-server-side-encryption:kms")
|
||||
flags+=("-h=x-obs-server-side-encryption-kms-key-id:${OBS_KMS_KEY_ID}")
|
||||
fi
|
||||
;;
|
||||
none|None|"") ;;
|
||||
*) log "WARN" "未知 --sse=$CLI_SSE，忽略。";;
|
||||
esac
|
||||
printf '%s\n' "${flags[@]}"
|
||||
}
|
||||
|
||||
# 上传（含重试）
|
||||
upload() {
|
||||
local start; start=$(date +%s)
|
||||
local dst_dir="obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/"
|
||||
local flags; mapfile -t flags < <(build_obs_flags)
|
||||
retry 3 "上传归档 ${ARCHIVE_BASE}" obsutil cp "$ARCHIVE_PATH" "${dst_dir}${ARCHIVE_BASE}" "${flags[@]}"
|
||||
retry 3 "上传校验 ${ARCHIVE_BASE}.sha256" obsutil cp "$SHA_PATH" "${dst_dir}${ARCHIVE_BASE}.sha256" "${flags[@]}"
|
||||
local end; end=$(date +%s)
|
||||
UP_SECONDS=$((end - start))
|
||||
if (( UP_SECONDS > 0 )); then
|
||||
AVG_SPEED="$(( PACK_SIZE / UP_SECONDS ))"
|
||||
else
|
||||
AVG_SPEED="$PACK_SIZE"
|
||||
fi
|
||||
}
|
||||
|
||||
# 远端完整性校验（下载 .sha256 比对）
|
||||
verify_remote() {
|
||||
local tmp_remote="${SHA_PATH}.remote"
|
||||
rm -f "$tmp_remote"
|
||||
local dst="obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/${ARCHIVE_BASE}.sha256"
|
||||
retry 3 "下载远端校验 ${ARCHIVE_BASE}.sha256" obsutil cp "$dst" "$tmp_remote" -f >/dev/null
|
||||
if ! cmp -s "$SHA_PATH" "$tmp_remote"; then
|
||||
log "ERROR" "远端 .sha256 与本地不一致"
|
||||
return 1
|
||||
fi
|
||||
rm -f "$tmp_remote"
|
||||
log "INFO" "远端完整性校验通过（.sha256 一致）"
|
||||
}
|
||||
|
||||
#############################
|
||||
# 主流程
|
||||
#############################
|
||||
|
||||
SECONDS=0
|
||||
PACK_SECONDS=0
|
||||
UP_SECONDS=0
|
||||
AVG_SPEED=0
|
||||
PACK_SIZE=0
|
||||
BACKUP_SIZE_HUMAN=""
|
||||
|
||||
log "INFO" "准备开始备份。DRY_RUN=${DRY_RUN} KEEP_LOCAL=${KEEP_LOCAL} SSE=${CLI_SSE}"
|
||||
|
||||
retry 3 "打包与压缩" pack || { log "ERROR" "打包失败"; exit 3; }
|
||||
maybe_encrypt
|
||||
gen_sha
|
||||
|
||||
# 计算人类可读大小
|
||||
BACKUP_SIZE_HUMAN="$(numfmt --to=iec "$PACK_SIZE")"
|
||||
|
||||
if $DRY_RUN; then
|
||||
log "INFO" "Dry-run 模式：不执行上传。归档：${ARCHIVE_BASE} 大小：${BACKUP_SIZE_HUMAN}"
|
||||
log "INFO" "本次总用时：${SECONDS}s"
|
||||
send_telegram "dryrun"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
# 上传
|
||||
retry 3 "上传到 OBS" upload || { log "ERROR" "上传失败"; exit 4; }
|
||||
|
||||
# 完整性校验
|
||||
if ! verify_remote; then
|
||||
log "ERROR" "上传后完整性校验失败"
|
||||
local tail_log; tail_log="$(tail -n 80 "${LOG_FILE:-./backup.log}" 2>/dev/null || true)"
|
||||
send_telegram "error" "上传后完整性校验失败：${ARCHIVE_BASE}" "$tail_log"
|
||||
exit 5
|
||||
fi
|
||||
|
||||
# 清理本地
|
||||
if ! $KEEP_LOCAL; then
|
||||
rm -f "$ARCHIVE_PATH" "$SHA_PATH" || true
|
||||
log "INFO" "已删除本地临时归档与校验文件"
|
||||
fi
|
||||
|
||||
# 汇总
|
||||
TOTAL_SECS=$SECONDS
|
||||
SPEED_HUMAN="$(numfmt --to=iec "$AVG_SPEED")/s"
|
||||
log "INFO" "完成：归档大小=${BACKUP_SIZE_HUMAN} 打包=${PACK_SECONDS}s 上传=${UP_SECONDS}s 平均速率=${SPEED_HUMAN} 总用时=${TOTAL_SECS}s"
|
||||
send_telegram "success"
|
||||
|
||||
exit 0
|
||||
Reference in New Issue
Block a user