98 lines
2.9 KiB
PowerShell
98 lines
2.9 KiB
PowerShell
# PostgreSQL 备份下载脚本（Windows PowerShell）
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# 使用方法：.\download-backup.ps1
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param(
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[string]$ServerIP = "192.168.58.20",
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[string]$ServerUser = "root",
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[string]$RemoteFile = "/tmp/backup.sql",
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[string]$LocalDir = ".\backups"
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)
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Write-Host "=========================================="
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Write-Host " PostgreSQL 备份下载工具"
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Write-Host "=========================================="
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Write-Host ""
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# 创建本地备份目录
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if (!(Test-Path $LocalDir)) {
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New-Item -ItemType Directory -Path $LocalDir | Out-Null
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Write-Host "✅ 创建本地目录: $LocalDir"
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}
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# 生成带时间戳的文件名
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$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
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$LocalFile = Join-Path $LocalDir "lobechat_backup_$Timestamp.sql"
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Write-Host "[1/4] 检查远程文件..."
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$CheckCmd = "ssh ${ServerUser}@${ServerIP} 'test -f $RemoteFile && echo EXISTS || echo NOT_FOUND'"
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$FileExists = Invoke-Expression $CheckCmd 2>$null
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if ($FileExists -match "NOT_FOUND") {
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Write-Host "❌ 远程文件不存在: $RemoteFile"
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Write-Host ""
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Write-Host "请先在服务器上导出数据："
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Write-Host " ssh ${ServerUser}@${ServerIP}"
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Write-Host " docker exec -u root -e PGPASSWORD='gongxiangpan123' flnxi-material \"
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Write-Host " pg_dump -h 192.168.58.20 -U gongxiangpan -d lobechat > /tmp/backup.sql"
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exit 1
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}
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Write-Host "✅ 远程文件存在"
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Write-Host ""
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Write-Host "[2/4] 获取文件大小..."
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$SizeCmd = "ssh ${ServerUser}@${ServerIP} 'ls -lh $RemoteFile | awk ''{print `$5}''"
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$FileSize = Invoke-Expression $SizeCmd
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Write-Host "✅ 文件大小: $FileSize"
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Write-Host ""
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Write-Host "[3/4] 下载文件..."
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Write-Host " 从: ${ServerUser}@${ServerIP}:${RemoteFile}"
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Write-Host " 到: $LocalFile"
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scp "${ServerUser}@${ServerIP}:${RemoteFile}" $LocalFile
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if ($LASTEXITCODE -eq 0) {
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Write-Host "✅ 下载成功"
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} else {
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Write-Host "❌ 下载失败"
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exit 1
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}
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Write-Host ""
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Write-Host "[4/4] 验证文件..."
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if (Test-Path $LocalFile) {
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$LocalSize = (Get-Item $LocalFile).Length
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$LocalSizeStr = "{0:N2} MB" -f ($LocalSize / 1MB)
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Write-Host "✅ 文件已保存"
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Write-Host " 路径: $LocalFile"
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Write-Host " 大小: $LocalSizeStr"
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} else {
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Write-Host "❌ 文件验证失败"
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exit 1
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}
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Write-Host ""
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Write-Host "=========================================="
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Write-Host " ✅ 下载完成！"
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Write-Host "=========================================="
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Write-Host ""
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Write-Host "📁 备份文件: $LocalFile"
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Write-Host ""
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Write-Host "📊 查看备份内容："
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Write-Host " Get-Content $LocalFile -Head 50"
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Write-Host ""
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Write-Host "🔄 恢复数据库："
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Write-Host " psql -h 服务器IP -U gongxiangpan -d lobechat -f $LocalFile"
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Write-Host ""
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# 列出所有备份文件
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Write-Host "📋 本地备份文件："
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Get-ChildItem $LocalDir -Filter "*.sql" | ForEach-Object {
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$size = "{0:N2} MB" -f ($_.Length / 1MB)
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Write-Host " $($_.Name) ($size)"
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}
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Write-Host ""
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