From d51e907ceec8239ad3321787ccf715ac21f7f1b7 Mon Sep 17 00:00:00 2001
From: amos <wangbiao@deepinnet.com>
Date: Wed, 31 Dec 2025 17:34:23 +0800
Subject: [PATCH] =?UTF-8?q?feat:=E5=A2=9E=E5=8A=A0=E8=87=AA=E5=8A=A8?=
 =?UTF-8?q?=E5=A4=87=E4=BB=BD=E6=95=B0=E6=8D=AE=E7=9A=84=E8=84=9A=E6=9C=AC?=
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---
 backup.sh | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 backup.sh

diff --git a/backup.sh b/backup.sh
new file mode 100644
index 0000000..8139eba
--- /dev/null
+++ b/backup.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+
+# Memory 数据库备份脚本
+# 功能：备份 SQLite 数据库到 R2，保留最近 7 天的备份
+
+set -e
+
+# ============ 配置区域 ============
+# R2 配置
+R2_ACCOUNT_ID="ebf33b5ee4eb26f32af0c6e06102e000"
+R2_ACCESS_KEY_ID="8acbc8a9386d60d0e8dac6bd8165c618"
+R2_ACCESS_KEY_SECRET="72935e23b5b4be8fda99008e75285e8ac778f8926656c42780b25785bb149443"
+R2_BUCKET_NAME="memory"
+R2_BACKUP_PATH="memory-backup"
+
+# 数据库路径
+DB_PATH="/amos/memory/data/memory.db"
+
+# 备份保留天数
+KEEP_DAYS=7
+
+# 日志文件
+LOG_FILE="/var/log/memory-backup.log"
+
+# ============ 函数定义 ============
+
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
+}
+
+# 上传备份到 R2
+upload_backup() {
+    local backup_file=$1
+    local remote_name=$2
+    
+    AWS_ACCESS_KEY_ID=$R2_ACCESS_KEY_ID \
+    AWS_SECRET_ACCESS_KEY=$R2_ACCESS_KEY_SECRET \
+    aws s3 cp "$backup_file" "s3://${R2_BUCKET_NAME}/${R2_BACKUP_PATH}/${remote_name}" \
+        --endpoint-url "https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com"
+}
+
+# 清理旧备份，只保留最近 N 天
+cleanup_old_backups() {
+    log "清理旧备份..."
+    
+    # 列出所有备份文件，按时间倒序排列
+    local backup_list=$(AWS_ACCESS_KEY_ID=$R2_ACCESS_KEY_ID \
+        AWS_SECRET_ACCESS_KEY=$R2_ACCESS_KEY_SECRET \
+        aws s3 ls "s3://${R2_BUCKET_NAME}/${R2_BACKUP_PATH}/" \
+        --endpoint-url "https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com" \
+        | grep "memory-.*\.db" \
+        | sort -r \
+        | awk '{print $4}')
+    
+    # 跳过前 N 个（最新的），删除其余的
+    local count=0
+    for backup in $backup_list; do
+        count=$((count + 1))
+        if [ $count -gt $KEEP_DAYS ]; then
+            log "   删除: $backup"
+            AWS_ACCESS_KEY_ID=$R2_ACCESS_KEY_ID \
+            AWS_SECRET_ACCESS_KEY=$R2_ACCESS_KEY_SECRET \
+            aws s3 rm "s3://${R2_BUCKET_NAME}/${R2_BACKUP_PATH}/${backup}" \
+                --endpoint-url "https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com"
+        fi
+    done
+    
+    if [ $count -le $KEEP_DAYS ]; then
+        log "   无需清理，当前共 ${count} 个备份"
+    else
+        log "   已清理 $((count - KEEP_DAYS)) 个旧备份"
+    fi
+}
+
+# ============ 主流程 ============
+
+log "========== 开始备份 =========="
+
+# 检查数据库文件是否存在
+if [ ! -f "$DB_PATH" ]; then
+    log "❌ 数据库文件不存在: $DB_PATH"
+    exit 1
+fi
+
+# 生成备份文件名（带日期）
+DATE=$(date '+%Y-%m-%d')
+BACKUP_NAME="memory-${DATE}.db"
+TEMP_BACKUP="/tmp/${BACKUP_NAME}"
+
+# 使用 sqlite3 的 .backup 命令进行热备份（避免数据损坏）
+log "备份数据库..."
+sqlite3 "$DB_PATH" ".backup '$TEMP_BACKUP'"
+
+# 上传到 R2
+log "上传到 R2..."
+upload_backup "$TEMP_BACKUP" "$BACKUP_NAME"
+
+# 清理临时文件
+rm -f "$TEMP_BACKUP"
+
+# 清理旧备份
+cleanup_old_backups
+
+log "✅ 备份完成: ${BACKUP_NAME}"
+log "========== 备份结束 =========="