Shuery
7173e8ae10
需求
- 写满盘这件事只做一件事：**备份前预测本次所需大小，并提示用户存储够不够**，
不再往"更复杂的占用控制"方向做。
实现
- Backup.ps1 新增只读的"备份前空间预估"，在动手之前按清单顺序模拟一遍：
* 逐个条目枚举源目录得到真实源大小/文件数，并读取现有归档大小；
* 沿用主循环那套"源未更新就跳过"的判断，所以列出来的就是**本次真的会重打**的条目；
* 估算模型：临时归档写完时旧归档还在，那一刻占用 = 当前累计净增量 + 本次预估；
原子替换后净增量 = 预估 − 旧归档大小；峰值取整个过程的最大值；
* 预估归档大小：有历史归档取 min(源大小, 旧归档 × 1.3)，没有则按"不压缩"的悲观值；
* 打印：可用空间、要重打的条目数（及跳过/缺源的数量）、逐条目明细（前 15 条）、
预计峰值新增与净增量，最后给一句结论——"空间足够"或"空间可能不够！…差 Z GB"。
* 不够时**只告警、不中断**：真正放不下的条目仍由逐条目守卫跳过。
- 新增 Sync-BaknretManifestArchive（Common.psm1，Backup/Restore 都在写 manifest 前调用）：
维持不变式"manifest 里写了 archive 的记录，磁盘上就一定有那个文件"，
把指向不存在归档的 archive 字段清空，但保留 source / action / 历史计数。
这样"源不存在的条目"不会再让 Restore 反复报"manifest 记录的归档不存在"，
人工删掉归档（例如把它并进别的条目）之后记录也会自我纠正。
整理（本机备份集）
- 按用户确认，删除了已被 scoop.7z 覆盖的 scoop-config.7z 与 scoop-persist.7z
（删除前先 7z t 复验 scoop.7z：233 MB / 29478 项 / 顶层 [persist, scoop]），
并清掉 manifest 里这两条历史记录；24 条记录的 archive 现在全部存在于磁盘上。
测试
- Pester 88 项、零依赖单元 49 项、端到端 23 项，全部通过。
新增覆盖：对象数组名录、两种写法 × :+/-、同名目录拒绝执行、行尾 # 说明、
孤儿审计（含"manifest 里还有历史记录"的说明）、archive 字段一致性、空间预估输出。
828 lines
40 KiB
PowerShell
828 lines
40 KiB
PowerShell
<#
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.SYNOPSIS
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按 BackupList.txt 执行备份。
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.DESCRIPTION
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与旧版相比的核心变化：
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1. 退出码可靠 —— 不再用 Start-Process -PassThru（在 PowerShell 7.7.0-preview.4 上
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ExitCode 恒为 $null，会把成功的压缩判成失败），改用 Invoke-ExternalCommand。
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2. 先写临时归档 → 校验 → 原子替换。中断或断电只会留下 .tmp 文件，
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不会污染正式归档；也不会再出现"半个归档被下次增量续写"的情况。
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3. 不再使用 7z 的 u（更新）模式。7z 默认是固实压缩，u 本来就要重压大部分数据，
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收益极小，却让排除规则和删除操作永远无法生效（旧归档里会一直留着已删文件）。
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现在每次都从零打包，于是"排除规则改动"和"源里删掉的文件"都能真正反映到归档。
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4. 每个条目写进 manifest.json：源、归档、时间、退出码、校验结果、失败原因。
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跳过和失败从此有据可查，而不是只剩一行滚过去的控制台告警。
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5. 结尾按失败数 exit，并写日志文件，计划任务能正确判断成败。
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6. 磁盘空间守卫：放不下就拒绝该条目，低于阈值则告警。
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#>
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[CmdletBinding()]
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param(
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[Parameter()]
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[string]$BackupListPath = (Join-Path $PSScriptRoot 'BackupList.txt'),
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[Parameter()]
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[string]$BackupDir,
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[Parameter()]
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[string]$ConfigPath = (Join-Path $PSScriptRoot 'BackupConfig.psd1'),
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[Parameter()]
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[string]$KeyFile,
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# 只处理匹配这些通配符的条目（匹配原始路径或归档基础名）
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[Parameter()]
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[string[]]$Only = @(),
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# 跳过匹配这些通配符的条目
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[Parameter()]
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[string[]]$Skip = @(),
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# 忽略"源未更新"判断，强制重新打包
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[Parameter()]
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[switch]$Force,
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# 成功后在 snapshots 目录留一份带时间戳的副本
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[Parameter()]
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[switch]$Snapshot,
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# 额外计算归档的 SHA256 写入 manifest（大归档会更慢）
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[Parameter()]
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[switch]$Hash,
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# 抑制压缩工具的实时输出（日志与 manifest 不受影响）
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[Parameter()]
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[switch]$QuietTool,
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# 允许用"有警告"的不完整归档覆盖已有的完整归档（默认拒绝）
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[Parameter()]
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[switch]$AcceptWarnings,
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# 只打印将要做什么，不实际写入
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[Parameter()]
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[switch]$DryRun
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)
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$ErrorActionPreference = 'Stop'
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# ============================================================================
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# 载入依赖
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# ============================================================================
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$modulePath = Join-Path $PSScriptRoot 'Common.psm1'
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if (-not (Test-Path -LiteralPath $modulePath)) {
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Write-Error "找不到依赖模块：$modulePath，请确保所有文件在同一目录。"
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exit 1
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}
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Import-Module $modulePath -Force
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if ($PSBoundParameters.ContainsKey('Verbose')) { Set-BaknretDebug }
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$script:Config = Get-BaknretConfig -Path $ConfigPath
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function Resolve-ConfigPath {
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param([string]$Path, [string]$Default)
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$value = if ($Path) { $Path } else { $Default }
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if (-not [System.IO.Path]::IsPathRooted($value)) {
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$value = Join-Path $PSScriptRoot $value
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}
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return $value
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}
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if (-not $BackupDir) { $BackupDir = Resolve-ConfigPath -Path $null -Default $script:Config.BackupDir }
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$logDir = Resolve-ConfigPath -Path $null -Default $script:Config.LogDir
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$snapshotDir = Resolve-ConfigPath -Path $null -Default $script:Config.SnapshotDir
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$catalogPath = Resolve-CatalogPath -Configured $script:Config.SoftwareCatalog -Root $PSScriptRoot
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$manifestPath = Join-Path $BackupDir 'manifest.json'
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$logPath = Start-BaknretLog -Directory $logDir -Prefix 'backup'
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Write-Log "日志文件：$logPath"
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Write-Log "备份目录：$BackupDir"
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Write-Log ("软件名录：{0}{1}" -f $catalogPath, $(if (Test-Path -LiteralPath $catalogPath) { '' } else { '（不存在，将只支持字面路径）' }))
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if (-not (Test-Administrator)) {
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Write-Log '建议以管理员身份运行以获取完整的目录访问权限' -Level WARN
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}
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# ============================================================================
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# 准备
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# ============================================================================
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if (-not (Test-Path -LiteralPath $BackupDir)) {
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New-Item -ItemType Directory -Path $BackupDir -Force | Out-Null
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Write-Log "创建备份目录: $BackupDir" -Level DEBUG
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}
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if (-not (Test-Path -LiteralPath $BackupListPath)) {
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$template = "# BackupList.txt`n# 语法: <路径> [ :: <排除模式>[,<排除模式>...] ] [ @<标记> ]`n# 示例: %UserProfile%\.ssh`n"
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[System.IO.File]::WriteAllText($BackupListPath, $template, [System.Text.UTF8Encoding]::new($false))
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Write-Log '模板 BackupList.txt 已创建，请编辑后重试。' -Level INFO
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Stop-BaknretLog
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exit 0
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}
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$tool = Resolve-CompressionTool
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if (-not $tool) {
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Write-Log '没有找到可用的压缩工具。' -Level ERROR
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Stop-BaknretLog
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exit 1
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}
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$toolVersion = try {
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$info = (Get-Item -LiteralPath $tool.Command -ErrorAction Stop).VersionInfo
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if ($info.ProductVersion) { $info.ProductVersion } elseif ($info.FileVersion) { $info.FileVersion } else { $null }
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} catch { $null }
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Write-Log ("压缩工具：{0}{1}" -f $tool.Name, $(if ($toolVersion) { "（$toolVersion）" } else { '' }))
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$manifest = Read-BaknretManifest -Path $manifestPath
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$manifest.compressor = [pscustomobject]@{ name = $tool.Name; command = $tool.Command; extension = $tool.Extension; version = $toolVersion }
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$passwordFile = if ($KeyFile) { $KeyFile } else { $script:Config.Encryption.PasswordFile }
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$password = Get-BaknretPassword -PasswordFile $passwordFile
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$encryptAll = [bool]$script:Config.Encryption.Enabled
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$showToolOutput = (-not $QuietTool) -and ($script:Config.ToolOutput -ne 'quiet')
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$toolQuietArgument = if ($showToolOutput) { @() } else { @('-bso0', '-bsp0') }
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$lines = Get-Content -LiteralPath $BackupListPath
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$seenBaseNames = @{}
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$processed = 0; $skipped = 0; $failed = 0; $planned = 0
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$failures = @()
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$freeSpaceGB = Get-BaknretFreeSpaceGB -Path $BackupDir
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if ($freeSpaceGB -ge 0) {
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Write-Log ("备份目录所在卷剩余空间：{0} GB" -f $freeSpaceGB)
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if ($freeSpaceGB -lt $script:Config.MinFreeSpaceGB) {
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Write-Log ("剩余空间低于阈值 {0} GB，大条目可能失败" -f $script:Config.MinFreeSpaceGB) -Level WARN
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}
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}
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function Test-ItemSelected {
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param([string]$DisplayPath, [string]$BaseName)
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if ($Only.Count -gt 0) {
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$matched = $false
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foreach ($pattern in $Only) {
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if ($DisplayPath -like $pattern -or $BaseName -like $pattern) { $matched = $true; break }
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}
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if (-not $matched) { return $false }
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}
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foreach ($pattern in $Skip) {
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if ($DisplayPath -like $pattern -or $BaseName -like $pattern) { return $false }
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}
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return $true
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}
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function New-ItemRecord {
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param([string]$BaseName, [string]$Source, [string]$ResolvedSource, [string]$Phase)
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return [ordered]@{
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baseName = $BaseName
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source = $Source
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resolvedSource = $ResolvedSource
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roots = @()
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catalog = $null
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archive = $null
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action = $null
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reason = $null
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phase = $Phase
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attemptedAt = (Get-Date).ToString('o')
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finishedAt = $null
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durationSec = $null
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exitCode = $null
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verified = $false
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warnings = $false
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attemptWarnings = $false
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encrypted = $false
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sourceFiles = $null
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sourceBytes = $null
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archiveBytes = $null
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sha256 = $null
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lastSuccessAt = $null
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successCount = 0
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failCount = 0
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}
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}
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function Save-ItemRecord {
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param($Record, [string]$Action, [string]$Reason, [bool]$ArchiveWarnings = $false)
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$previous = $null
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if ($manifest.items.Contains($Record.baseName)) { $previous = $manifest.items[$Record.baseName] }
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$Record.action = $Action
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$Record.reason = $Reason
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$Record.finishedAt = (Get-Date).ToString('o')
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# warnings 描述的是"当前在位的归档"，不是"这次尝试"。
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# 只有真正换掉了归档才更新它；否则沿用上一条记录，
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# 否则"因为不完整而保留旧归档"之后，下一次就失去保护了。
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if ($Action -eq 'backed-up') {
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$Record.warnings = $ArchiveWarnings
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} elseif ($previous -and ($previous.PSObject.Properties.Name -contains 'warnings')) {
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$Record.warnings = [bool]$previous.warnings
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}
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if ($previous) {
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if ($previous.PSObject.Properties.Name -contains 'lastSuccessAt') { $Record.lastSuccessAt = $previous.lastSuccessAt }
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if ($previous.PSObject.Properties.Name -contains 'successCount') { $Record.successCount = [int]$previous.successCount }
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if ($previous.PSObject.Properties.Name -contains 'failCount') { $Record.failCount = [int]$previous.failCount }
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}
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if ($Action -eq 'backed-up') {
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$Record.lastSuccessAt = $Record.finishedAt
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$Record.successCount = [int]$Record.successCount + 1
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} elseif ($Action -eq 'failed') {
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$Record.failCount = [int]$Record.failCount + 1
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}
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$manifest.items[$Record.baseName] = $Record
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return $Record
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}
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# 压缩 + 校验 + 原子替换；返回 @{ Ok; ExitCode; Warnings; Reason }
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#
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# $SourceGroups 支持"一个软件包含多个目录"：每个元素是
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# @{ ParentDir; RelativePaths; Label }。7z/RAR 对同一归档多次 `a` 会把内容并入，
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# 所以按父目录分组、逐组追加，归档里每个目录仍保留自己的名字与层级。
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function Invoke-BackupItem {
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param(
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[Parameter(Mandatory = $true)][array]$SourceGroups,
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[Parameter(Mandatory = $true)][string]$FinalPath,
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[string[]]$ExcludePatterns,
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[switch]$UseEncryption,
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[switch]$ProtectPrevious,
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[switch]$AcceptWarnings
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)
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$tempPath = "$FinalPath.tmp$($tool.Extension)"
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if (Test-Path -LiteralPath $tempPath) { Remove-Item -LiteralPath $tempPath -Force -ErrorAction SilentlyContinue }
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$warnings = $false
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$lastExitCode = 0
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$lastParentDir = $null
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try {
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if ($SourceGroups.Count -eq 0) {
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return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = '没有可打包的源目录' }
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}
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$groupIndex = 0
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foreach ($group in $SourceGroups) {
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$groupIndex++
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$parentDir = $group.ParentDir
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$relativePaths = @($group.RelativePaths)
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if ($relativePaths.Count -eq 0) { continue }
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$lastParentDir = $parentDir
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# 排除模式的**前缀用这一组的源目录名**（归档里就是这个层级）。
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$prefixName = if ($group.Label) { $group.Label } else { Split-Path -Path $relativePaths[0] -Leaf }
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$excludeArgument = Get-ArchiveExcludeArgument -ItemName $prefixName -Patterns $ExcludePatterns
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|
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if ($tool.Name -eq '7z') {
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$probePath = "$($parentDir.TrimEnd('\'))\$($relativePaths[0])"
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$optimized = Get-Optimized7zArgument -SourcePath $probePath -Level $script:Config.CompressionLevel
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$argument = @($optimized.Argument) + $toolQuietArgument + $excludeArgument
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|
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if ($UseEncryption) {
|
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if (-not $password) {
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return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = '需要加密但取不到口令（见 README「加密」）' }
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}
|
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$argument += "-p$password"
|
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if ($script:Config.Encryption.EncryptHeaders) { $argument += '-mhe=on' }
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}
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|
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$argument += $tempPath
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foreach ($relative in $relativePaths) { $argument += $relative }
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|
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$exitCode = Invoke-ExternalCommand -FilePath $tool.Command -ArgumentList $argument -WorkingDirectory $parentDir
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$lastExitCode = $exitCode
|
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# 7z: 0 成功；1 警告（有文件读不到或跳过）；2 及以上为失败
|
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if ($exitCode -ne 0 -and $exitCode -ne 1) {
|
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return [pscustomobject]@{ Ok = $false; ExitCode = $exitCode; Warnings = $warnings; Reason = "第 $groupIndex 组（$prefixName）压缩工具退出码 $exitCode" }
|
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}
|
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if ($exitCode -eq 1) { $warnings = $true }
|
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}
|
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elseif ($tool.Name -eq 'RAR') {
|
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$argument = @('a', '-m5', '-idp', '-idn') + $toolQuietArgument + $excludeArgument
|
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if ($UseEncryption) {
|
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if (-not $password) {
|
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return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = '需要加密但取不到口令' }
|
||
}
|
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$argument += "-p$password"
|
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}
|
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$argument += $tempPath
|
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foreach ($relative in $relativePaths) { $argument += $relative }
|
||
|
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$exitCode = Invoke-ExternalCommand -FilePath $tool.Command -ArgumentList $argument -WorkingDirectory $parentDir
|
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$lastExitCode = $exitCode
|
||
if ($exitCode -ne 0) {
|
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return [pscustomobject]@{ Ok = $false; ExitCode = $exitCode; Warnings = $warnings; Reason = "第 $groupIndex 组（$prefixName）压缩工具退出码 $exitCode" }
|
||
}
|
||
}
|
||
else {
|
||
if ($UseEncryption) {
|
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return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = '内置 ZIP 不支持加密，请改用 7z 或去掉 encrypt 标记' }
|
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}
|
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# Compress-Archive 不能追加；多组时逐组重打（先把已有临时归档解开再合并会让代码复杂得多，
|
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# 而 ZIP 本来就是降级路径，这里只保证内容完整）
|
||
$fullPaths = @($relativePaths | ForEach-Object { Join-Path $parentDir $_ })
|
||
if ($groupIndex -gt 1 -and (Test-Path -LiteralPath $tempPath)) {
|
||
$staging = Join-Path $env:TEMP ("bnr-zip-" + [guid]::NewGuid().ToString('N'))
|
||
New-Item -ItemType Directory -Path $staging -Force | Out-Null
|
||
try {
|
||
Expand-Archive -LiteralPath $tempPath -DestinationPath $staging -Force
|
||
$fullPaths += @(Get-ChildItem -LiteralPath $staging -Force | Select-Object -ExpandProperty FullName)
|
||
Compress-Archive -Path $fullPaths -DestinationPath $tempPath -CompressionLevel Optimal -Force
|
||
} finally {
|
||
Remove-Item -LiteralPath $staging -Recurse -Force -ErrorAction SilentlyContinue
|
||
}
|
||
} else {
|
||
Compress-Archive -Path $fullPaths -DestinationPath $tempPath -CompressionLevel Optimal -Force
|
||
}
|
||
}
|
||
}
|
||
|
||
if (-not (Test-Path -LiteralPath $tempPath)) {
|
||
return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = '压缩结束但没有生成临时归档' }
|
||
}
|
||
|
||
# 校验：确认归档可读且内容 CRC 正确
|
||
if ($script:Config.VerifyArchive -and $tool.Name -eq '7z') {
|
||
$verifyArgument = @('t', '-bso0', '-bsp0')
|
||
if ($UseEncryption -and $password) { $verifyArgument += "-p$password" }
|
||
$verifyArgument += $tempPath
|
||
|
||
$verifyCode = Invoke-ExternalCommand -FilePath $tool.Command -ArgumentList $verifyArgument -WorkingDirectory $lastParentDir
|
||
if ($verifyCode -ne 0) {
|
||
Remove-Item -LiteralPath $tempPath -Force -ErrorAction SilentlyContinue
|
||
return [pscustomobject]@{ Ok = $false; ExitCode = $verifyCode; Warnings = $false; Reason = "归档校验失败（7z t 退出码 $verifyCode），已丢弃临时文件" }
|
||
}
|
||
Write-Log '归档校验通过（7z t）' -Level DEBUG
|
||
|
||
# 多目录时确认每个目录都真的进了归档：7z 的"警告"可能只体现在某一组里
|
||
if ($SourceGroups.Count -gt 1) {
|
||
$listed = @(Get-ArchiveTopLevelNames -ArchivePath $tempPath -SevenZip $tool.Command -Password $(if ($UseEncryption) { $password } else { $null }))
|
||
if ($listed.Count -gt 0) {
|
||
$expected = @($SourceGroups | ForEach-Object { Split-Path -Path $_.RelativePaths[0] -Leaf })
|
||
$absent = @($expected | Where-Object { $_ -notin $listed })
|
||
if ($absent.Count -gt 0) {
|
||
Remove-Item -LiteralPath $tempPath -Force -ErrorAction SilentlyContinue
|
||
return [pscustomobject]@{ Ok = $false; ExitCode = $lastExitCode; Warnings = $true; Reason = ("归档缺少这些目录：{0}（归档内实际有：{1}）" -f ($absent -join '、'), ($listed -join '、')) }
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# 关键保护：压缩工具报了警告（通常是有文件被占用读不到）时，
|
||
# 新归档是**不完整**的。用不完整归档覆盖已有的完整归档 = 静默丢数据。
|
||
# 实测：Edge 运行时备份，118 个文件读不到，其中包含 Login Data（密码）、
|
||
# Cookies、History、Web Data —— 恰恰是最不可再生的那部分。
|
||
if ($warnings -and $ProtectPrevious -and -not $AcceptWarnings) {
|
||
Remove-Item -LiteralPath $tempPath -Force -ErrorAction SilentlyContinue
|
||
return [pscustomobject]@{
|
||
Ok = $false
|
||
ExitCode = $lastExitCode
|
||
Warnings = $true
|
||
Reason = '压缩工具报告有文件被占用而读不到，新归档不完整。为避免覆盖现有的完整归档已保留旧归档；请关闭占用该目录的程序后重跑，或确认可以接受后用 -AcceptWarnings 强制覆盖'
|
||
}
|
||
}
|
||
|
||
Move-BaknretArchiveIntoPlace -TempPath $tempPath -DestinationPath $FinalPath
|
||
return [pscustomobject]@{ Ok = $true; ExitCode = 0; Warnings = $warnings; Reason = $null }
|
||
} catch {
|
||
if (Test-Path -LiteralPath $tempPath) {
|
||
Remove-Item -LiteralPath $tempPath -Force -ErrorAction SilentlyContinue
|
||
}
|
||
return [pscustomobject]@{ Ok = $false; ExitCode = $null; Warnings = $false; Reason = "$_" }
|
||
}
|
||
}
|
||
|
||
# ============================================================================
|
||
# 备份前空间预估（只读，不写任何东西）
|
||
# ============================================================================
|
||
# 只做一件事：动手之前告诉用户"这次大概要写多少、盘够不够"。
|
||
# 不做更复杂的占用控制 —— 真正拦住某个条目的是主循环里的逐条目守卫。
|
||
#
|
||
# 模型（按清单顺序模拟一遍）：
|
||
# * 每个要重打的条目会先写一份**临时**归档，这时旧归档还在，所以那一刻占用的
|
||
# 是"当前累计净增量 + 本次预估"；
|
||
# * 原子替换之后，本次净增量 = 预估 - 现有归档大小（换成更小的归档会把空间还回来）。
|
||
# 于是：峰值新增 = max_i( 第 i 项之前的累计净增量 + 第 i 项的预估大小 )。
|
||
$spacePlan = @()
|
||
$spaceSkipped = 0
|
||
$spaceNoSource = 0
|
||
|
||
foreach ($planLine in $lines) {
|
||
$planItem = ConvertFrom-BackupListLine -Line $planLine
|
||
if (-not $planItem) { continue }
|
||
|
||
$planDisplayPath = $planItem.Path
|
||
$planResolved = Resolve-BackupEntry -Entry $planItem -CatalogPath $catalogPath -MaxDepth $script:Config.CatalogMaxDepth
|
||
if (-not $planResolved.BaseName) { continue }
|
||
if (-not (Test-ItemSelected -DisplayPath $planDisplayPath -BaseName $planResolved.BaseName)) { continue }
|
||
if ($planResolved.Blocking) { continue }
|
||
|
||
$planSources = @($planResolved.Sources | Where-Object { Test-Path -LiteralPath $_.SourcePath })
|
||
if ($planSources.Count -eq 0) { $spaceNoSource++; continue }
|
||
|
||
$planSourceBytes = [int64]0
|
||
$planSourceFiles = 0
|
||
$planLatest = $null
|
||
foreach ($planSource in $planSources) {
|
||
$planSummary = Get-FolderSummary -FolderPath $planSource.SourcePath
|
||
$planSourceBytes += [int64]$planSummary.TotalSize
|
||
$planSourceFiles += [int]$planSummary.FileCount
|
||
if ($planSummary.LatestModifiedTime -and (-not $planLatest -or $planSummary.LatestModifiedTime -gt $planLatest)) {
|
||
$planLatest = $planSummary.LatestModifiedTime
|
||
}
|
||
}
|
||
|
||
$planArchiveName = $planResolved.BaseName + $tool.Extension
|
||
$planArchivePath = Join-Path $BackupDir $planArchiveName
|
||
$planExistingItem = if (Test-Path -LiteralPath $planArchivePath) { Get-Item -LiteralPath $planArchivePath } else { $null }
|
||
$planExistingBytes = if ($planExistingItem) { [int64]$planExistingItem.Length } else { [int64]0 }
|
||
|
||
# 与主循环同一套判断：源没更新就不会重打
|
||
if (-not $Force -and $planExistingItem -and $planLatest -and $planLatest -le $planExistingItem.LastWriteTime) {
|
||
$spaceSkipped++
|
||
continue
|
||
}
|
||
|
||
$planEstimate = if ($planExistingBytes -gt 0) {
|
||
[int64][math]::Min([double]$planSourceBytes, [double]$planExistingBytes * 1.3)
|
||
} else {
|
||
# 没有历史归档可比时按"完全不压缩"的悲观值估，宁可报多不报少
|
||
$planSourceBytes
|
||
}
|
||
|
||
$spacePlan += [pscustomobject]@{
|
||
Name = $planResolved.BaseName
|
||
Source = $planDisplayPath
|
||
Files = $planSourceFiles
|
||
SourceBytes = $planSourceBytes
|
||
Existing = $planExistingBytes
|
||
Estimate = $planEstimate
|
||
}
|
||
}
|
||
|
||
$freeNowGB = Get-BaknretFreeSpaceGB -Path $BackupDir
|
||
|
||
if ($spacePlan.Count -eq 0) {
|
||
Write-Log '备份前空间预估：本次没有需要重打的条目（源未更新或源不存在），不会写入新归档' -Level INFO
|
||
} else {
|
||
$spacePeak = [double]0
|
||
$spaceCumulative = [double]0
|
||
foreach ($plan in $spacePlan) {
|
||
$spacePeak = [math]::Max($spacePeak, $spaceCumulative + $plan.Estimate)
|
||
$spaceCumulative += ($plan.Estimate - $plan.Existing)
|
||
}
|
||
$peakGB = $spacePeak / 1GB
|
||
$netGB = $spaceCumulative / 1GB
|
||
$estimateGB = ((($spacePlan | Measure-Object -Property Estimate -Sum).Sum)) / 1GB
|
||
$existingGB = ((($spacePlan | Measure-Object -Property Existing -Sum).Sum)) / 1GB
|
||
|
||
Write-Log '==== 备份前空间预估（只读）====' -Level INFO
|
||
Write-Log (" 目标卷可用空间：{0} GB" -f $freeNowGB)
|
||
Write-Log (" 本次要重打 {0} 个条目（另有 {1} 个源未更新会跳过、{2} 个源不存在）" -f $spacePlan.Count, $spaceSkipped, $spaceNoSource)
|
||
Write-Log (" 新归档合计约 {0} GB；其中会替换掉的旧归档 {1} GB" -f [math]::Round($estimateGB, 2), [math]::Round($existingGB, 2))
|
||
|
||
foreach ($plan in ($spacePlan | Sort-Object Estimate -Descending | Select-Object -First 15)) {
|
||
Write-Log (" - {0,-22} 源 {1,8:N1} MB / {2,6} 文件 现有 {3,7:N1} MB 预估 {4,7:N1} MB" -f `
|
||
$plan.Name, ($plan.SourceBytes / 1MB), $plan.Files, ($plan.Existing / 1MB), ($plan.Estimate / 1MB))
|
||
}
|
||
if ($spacePlan.Count -gt 15) {
|
||
Write-Log (" …… 另有 {0} 个条目未逐条列出" -f ($spacePlan.Count - 15))
|
||
}
|
||
|
||
Write-Log (" 预计峰值新增占用：{0} GB（全程净增量 {1} GB）" -f [math]::Round($peakGB, 2), [math]::Round($netGB, 2))
|
||
|
||
if ($freeNowGB -lt 0) {
|
||
Write-Log ' 结论：读不到目标卷可用空间，请自行确认是否够用' -Level WARN
|
||
} elseif ($peakGB -le $freeNowGB) {
|
||
Write-Log (" 结论：空间足够（预计用 {0} GB / 可用 {1} GB）" -f [math]::Round($peakGB, 2), $freeNowGB) -Level INFO
|
||
} else {
|
||
Write-Log (" 结论：空间可能不够！预计需要 {0} GB，可用只有 {1} GB，差 {2} GB" -f `
|
||
[math]::Round($peakGB, 2), $freeNowGB, [math]::Round($peakGB - $freeNowGB, 2)) -Level WARN
|
||
Write-Log ' 仍会继续执行：真正放不下的条目会被逐条目守卫跳过。建议先腾空间，或用 -Only / -Skip 分批备份。' -Level WARN
|
||
}
|
||
Write-Log '============================' -Level INFO
|
||
}
|
||
|
||
# ============================================================================
|
||
# 主流程
|
||
# ============================================================================
|
||
|
||
foreach ($line in $lines) {
|
||
$item = ConvertFrom-BackupListLine -Line $line
|
||
if (-not $item) { continue }
|
||
|
||
$displayPath = $item.Path
|
||
$resolved = Resolve-BackupEntry -Entry $item -CatalogPath $catalogPath -MaxDepth $script:Config.CatalogMaxDepth
|
||
|
||
if (-not $resolved.BaseName) {
|
||
$record = New-ItemRecord -BaseName ('raw:' + $displayPath) -Source $displayPath -ResolvedSource $displayPath -Phase 'parse'
|
||
Save-ItemRecord -Record $record -Action 'failed' -Reason '无法生成归档名' | Out-Null
|
||
$failed++; $failures += $displayPath
|
||
continue
|
||
}
|
||
|
||
$baseName = $resolved.BaseName
|
||
$sourcePath = [Environment]::ExpandEnvironmentVariables($displayPath)
|
||
|
||
if (-not (Test-ItemSelected -DisplayPath $displayPath -BaseName $baseName)) {
|
||
Write-Log "跳过（未选中）: $displayPath" -Level DEBUG
|
||
continue
|
||
}
|
||
|
||
$record = New-ItemRecord -BaseName $baseName -Source $displayPath -ResolvedSource $sourcePath -Phase 'backup'
|
||
$record.archive = $baseName + $tool.Extension
|
||
if ($resolved.CatalogEntry) { $record.catalog = $resolved.CatalogEntry.Path }
|
||
$finalPath = Join-Path $BackupDir $record.archive
|
||
|
||
# root= 在 README 里被列为可用标记，但归档内的根目录实际上始终是源目录名
|
||
# （见 README「设计取舍」：不套一层软件名目录）。7z 命令行也没有"入库时改名"
|
||
# 的能力，所以这里明确告警而不是让它静默失效——静默失效正是本次重构要消灭的东西。
|
||
if (@($item.Flags | Where-Object { $_ -like 'root=*' }).Count -gt 0) {
|
||
Write-Log "警告: $displayPath 使用了 root= 标记，该功能尚未实现（归档内的根目录始终是源目录名），本次忽略" -Level WARN
|
||
}
|
||
|
||
# 备份列表里写重了会生成两个同名归档，互相覆盖 —— 直接报错，不猜。
|
||
if ($seenBaseNames.ContainsKey($baseName)) {
|
||
$reason = "归档名 '$baseName' 与清单中的 '$($seenBaseNames[$baseName])' 重复（由 '$displayPath' 生成），两者会互相覆盖"
|
||
Write-Log "失败: $displayPath，$reason" -Level ERROR
|
||
Save-ItemRecord -Record $record -Action 'failed' -Reason $reason | Out-Null
|
||
$failed++; $failures += $displayPath
|
||
continue
|
||
}
|
||
$seenBaseNames[$baseName] = $displayPath
|
||
|
||
# 归档内顶层同名冲突：明确失败，绝不把两个目录静默搅进同一棵树
|
||
if ($resolved.Blocking) {
|
||
Write-Log "失败: $displayPath，$($resolved.Blocking)" -Level ERROR
|
||
Save-ItemRecord -Record $record -Action 'failed' -Reason $resolved.Blocking | Out-Null
|
||
$failed++; $failures += $displayPath
|
||
continue
|
||
}
|
||
|
||
# 动手之前先把"这条会打包哪些目录、排除了什么、为什么"讲清楚
|
||
Write-BackupEntryPlan -Resolved $resolved -DisplayPath $displayPath `
|
||
-ListExcludes @($item.ExcludePatterns) -ConfigExcludes @($script:Config.DefaultExcludes) `
|
||
-Comment $item.Comment
|
||
|
||
# Sources 为空 = 解析不出任何源（名录里没这个软件名、或路径拆不出父/子级）。
|
||
# 注意不能用 $resolved.Error 判断：名录里的路径不存在时 Error 有值，
|
||
# 但 Sources 是给出的（恢复端要靠它把内容还原回原位），备份端由下面的
|
||
# 存在性检查统一处理。
|
||
if ($resolved.Sources.Count -eq 0) {
|
||
$reason = if ($resolved.Error) { $resolved.Error } else { '解析不出任何源路径' }
|
||
Write-Log "跳过: $displayPath，$reason" -Level WARN
|
||
Save-ItemRecord -Record $record -Action 'missing-source' -Reason $reason | Out-Null
|
||
$skipped++
|
||
continue
|
||
}
|
||
|
||
# 源存在性检查必须在 Get-FolderSummary / Get-Item 之前：
|
||
# 两者对不存在的路径要么抛异常、要么返回会误导判断的空摘要。
|
||
# 注意不能用 Join-Path 探测：目标盘符不存在时它会直接抛异常。
|
||
# 源路径存在性以 SourcePath 为准：RelativePaths 是"归档里的名字"，
|
||
# 目前两者一致，但 SourcePath 才是磁盘上的真实位置。
|
||
$expectedRoots = 0
|
||
$missingRoots = @()
|
||
foreach ($source in $resolved.Sources) {
|
||
$expectedRoots++
|
||
if (-not (Test-Path -LiteralPath $source.SourcePath)) { $missingRoots += $source.SourcePath }
|
||
}
|
||
|
||
if ($missingRoots.Count -ge $expectedRoots) {
|
||
Write-Log "跳过: $displayPath，源路径不存在" -Level WARN
|
||
Save-ItemRecord -Record $record -Action 'missing-source' -Reason ('源路径不存在：' + ($missingRoots -join '；')) | Out-Null
|
||
$skipped++
|
||
continue
|
||
}
|
||
|
||
if ($missingRoots.Count -gt 0) {
|
||
Write-Log ("警告: {0} 有 {1} 个源路径不存在，本次只备份存在的部分：{2}" -f $displayPath, $missingRoots.Count, ($missingRoots -join '；')) -Level WARN
|
||
}
|
||
|
||
# 归档里只放真实存在的源
|
||
$liveSources = @()
|
||
foreach ($source in $resolved.Sources) {
|
||
if (Test-Path -LiteralPath $source.SourcePath) {
|
||
$liveSources += [pscustomobject]@{
|
||
RootName = $source.RootName
|
||
ParentDir = $source.ParentDir
|
||
RelativePaths = @($source.RelativePaths)
|
||
SourcePath = $source.SourcePath
|
||
Description = $source.Description
|
||
Origin = $source.Origin
|
||
}
|
||
}
|
||
}
|
||
|
||
# 归档内的顶层条目名 = 每个**真实存在**的源在归档里的第一层名字，也就是源目录
|
||
# （或源文件）自己的名字。刻意不用 $resolved.Sources[].RootName：那套"归档内套一层
|
||
# 软件名"的设想已按设计取舍放弃，实际布局始终是 <源目录名>\...。
|
||
# 这里记录可核对的事实，之前写成软件名会让 Edge（实际是 "User Data"）之类的条目对不上。
|
||
$record.roots = @($liveSources | ForEach-Object {
|
||
$_.RelativePaths | ForEach-Object { ($_ -split '[\\/]')[0] }
|
||
} | Select-Object -Unique)
|
||
|
||
$primarySource = $liveSources[0].SourcePath
|
||
$parentDir = $liveSources[0].ParentDir
|
||
# 排除模式的前缀始终用**源目录名**（归档里就是这个层级）
|
||
$itemName = Split-Path -Path $primarySource -Leaf
|
||
|
||
if (-not $parentDir -or -not $itemName) {
|
||
Write-Log "跳过: $displayPath，无法处理根目录" -Level WARN
|
||
Save-ItemRecord -Record $record -Action 'invalid-path' -Reason '无法拆出父目录或末级名' | Out-Null
|
||
$skipped++
|
||
continue
|
||
}
|
||
|
||
$summary = Get-FolderSummary -FolderPath $primarySource
|
||
foreach ($source in $liveSources[1..($liveSources.Count - 1)]) {
|
||
$extra = Get-FolderSummary -FolderPath $source.SourcePath
|
||
$summary.FileCount += $extra.FileCount
|
||
$summary.TotalSize += $extra.TotalSize
|
||
if ($extra.LatestModifiedTime -and $extra.LatestModifiedTime -gt $summary.LatestModifiedTime) {
|
||
$summary.LatestModifiedTime = $extra.LatestModifiedTime
|
||
}
|
||
}
|
||
$record.sourceFiles = $summary.FileCount
|
||
$record.sourceBytes = $summary.TotalSize
|
||
|
||
$archiveExists = Test-Path -LiteralPath $finalPath
|
||
$archiveItem = if ($archiveExists) { Get-Item -LiteralPath $finalPath } else { $null }
|
||
|
||
Write-Log ("开始备份: {0} -> {1}（{2} 个文件，{3} MB）" -f $displayPath, $record.archive, $summary.FileCount, [math]::Round(($summary.TotalSize / 1MB), 2))
|
||
|
||
# 空目录时 Get-FolderSummary 拿不到任何条目，回退到源自身的修改时间
|
||
# （源路径上面已经确认存在，这里的 Get-Item 不会再抛异常）
|
||
$sourceLatest = $summary.LatestModifiedTime
|
||
if (-not $sourceLatest) {
|
||
$sourceLatest = (Get-Item -LiteralPath $primarySource -Force).LastWriteTime
|
||
}
|
||
|
||
if (-not $Force -and $archiveItem -and $sourceLatest -and $sourceLatest -le $archiveItem.LastWriteTime) {
|
||
Write-Log "跳过: $displayPath，源目录未更新" -Level INFO
|
||
$record.archiveBytes = $archiveItem.Length
|
||
Save-ItemRecord -Record $record -Action 'skip-unchanged' -Reason ('源最新修改时间 {0} 不晚于归档时间 {1}' -f $sourceLatest, $archiveItem.LastWriteTime) | Out-Null
|
||
$skipped++
|
||
continue
|
||
}
|
||
|
||
# 空间守卫：临时归档与正式归档会同时存在，因此按"新归档预估大小"要求剩余空间
|
||
$estimatedGB = $summary.TotalSize / 1GB
|
||
if ($archiveItem) {
|
||
$archiveGB = $archiveItem.Length / 1GB
|
||
$estimatedGB = [math]::Min($estimatedGB, $archiveGB * 1.3)
|
||
}
|
||
$freeSpaceGB = Get-BaknretFreeSpaceGB -Path $BackupDir
|
||
if ($freeSpaceGB -ge 0 -and $estimatedGB -gt 0 -and $freeSpaceGB -lt $estimatedGB) {
|
||
$reason = ('剩余空间 {0} GB 不足以写入预估 {1} GB 的新归档' -f $freeSpaceGB, [math]::Round($estimatedGB, 2))
|
||
Write-Log "失败: $displayPath，$reason" -Level ERROR
|
||
Save-ItemRecord -Record $record -Action 'failed' -Reason $reason | Out-Null
|
||
$failed++; $failures += $displayPath
|
||
continue
|
||
}
|
||
|
||
if ($DryRun) {
|
||
Write-Log ("[试运行] 将打包 {0} -> {1}" -f $sourcePath, $finalPath) -Level INFO
|
||
$record.reason = '试运行，未执行压缩'
|
||
Save-ItemRecord -Record $record -Action 'planned' -Reason '试运行，未执行压缩' | Out-Null
|
||
$planned++
|
||
continue
|
||
}
|
||
|
||
$useEncryption = $encryptAll -or ($item.Flags -contains 'encrypt')
|
||
$record.encrypted = [bool]$useEncryption
|
||
$startedAt = Get-Date
|
||
$record.attemptedAt = $startedAt.ToString('o')
|
||
|
||
# 配置里的全局排除 + 本条目的排除
|
||
$effectiveExcludes = @($script:Config.DefaultExcludes) + @($item.ExcludePatterns)
|
||
|
||
# 只有在"现有归档是完整的"时才值得保护它。没有 manifest 记录
|
||
# （本次重构之前留下的归档）时按完整处理——宁可保守。
|
||
$protectPrevious = [bool]$archiveExists
|
||
if ($archiveExists -and $manifest.items.Contains($baseName)) {
|
||
$previousRecord = $manifest.items[$baseName]
|
||
if (($previousRecord.PSObject.Properties.Name -contains 'warnings') -and $previousRecord.warnings) {
|
||
$protectPrevious = $false
|
||
}
|
||
}
|
||
|
||
# 多目录：每个源组各带自己的父目录与相对名。7z 会对同一归档逐组追加。
|
||
# Label 刻意留空：排除模式的前缀必须是**归档里的那一层名字**，也就是源目录名
|
||
# （归档内布局是 `<源目录名>\...`）。若把软件名当 Label 传下去，
|
||
# 排除模式就会变成 `软件名\skip.bin`，与实际路径对不上而静默失效。
|
||
$sourceGroups = @($liveSources | ForEach-Object {
|
||
[pscustomobject]@{
|
||
ParentDir = $_.ParentDir
|
||
RelativePaths = @($_.RelativePaths)
|
||
Label = $null
|
||
}
|
||
})
|
||
|
||
$result = Invoke-BackupItem -SourceGroups $sourceGroups `
|
||
-FinalPath $finalPath -ExcludePatterns $effectiveExcludes -UseEncryption:$useEncryption `
|
||
-ProtectPrevious:$protectPrevious -AcceptWarnings:$AcceptWarnings
|
||
|
||
$record.exitCode = $result.ExitCode
|
||
$record.attemptWarnings = [bool]$result.Warnings
|
||
$record.verified = [bool]$result.Ok
|
||
$record.durationSec = [math]::Round(((Get-Date) - $startedAt).TotalSeconds, 1)
|
||
|
||
if (-not $result.Ok) {
|
||
Write-Log "备份失败: $displayPath，$($result.Reason)" -Level ERROR
|
||
Save-ItemRecord -Record $record -Action 'failed' -Reason $result.Reason | Out-Null
|
||
$failed++; $failures += $displayPath
|
||
continue
|
||
}
|
||
|
||
$written = Get-Item -LiteralPath $finalPath
|
||
$record.archiveBytes = $written.Length
|
||
if ($result.Warnings) {
|
||
Write-Log "备份成功（压缩工具报告了警告，可能有文件被占用而没打进归档）: $displayPath" -Level WARN
|
||
Write-Log ' 该归档在 manifest 里标记为 warnings=true；如果以后现有归档是完整的，会拒绝被它覆盖' -Level WARN
|
||
} else {
|
||
Write-Log "备份成功: $baseName" -Level INFO
|
||
}
|
||
|
||
if ($Hash -or $script:Config.ComputeHash) {
|
||
$record.sha256 = (Get-FileHash -LiteralPath $finalPath -Algorithm SHA256).Hash
|
||
Write-Log "SHA256: $($record.sha256)" -Level DEBUG
|
||
}
|
||
|
||
if ($Snapshot -or $script:Config.Snapshot.Enabled) {
|
||
$stamp = Get-Date -Format 'yyyyMMdd-HHmmss'
|
||
$target = Join-Path (Join-Path $snapshotDir $stamp) $record.archive
|
||
$targetDir = Split-Path -Parent $target
|
||
if (-not (Test-Path -LiteralPath $targetDir)) { New-Item -ItemType Directory -Path $targetDir -Force | Out-Null }
|
||
Copy-Item -LiteralPath $finalPath -Destination $target -Force
|
||
Write-Log "已留存快照: $target" -Level INFO
|
||
}
|
||
|
||
Save-ItemRecord -Record $record -Action 'backed-up' -Reason $null -ArchiveWarnings $result.Warnings | Out-Null
|
||
$processed++
|
||
}
|
||
|
||
# ============================================================================
|
||
# 收尾
|
||
# ============================================================================
|
||
|
||
if ($DryRun) {
|
||
Write-Log '试运行：manifest 与归档都不会被写入' -Level INFO
|
||
} else {
|
||
# manifest 里写了 archive 的记录，磁盘上就必须真有那个文件
|
||
$clearedArchiveFields = Sync-BaknretManifestArchive -Manifest $manifest -BackupDir $BackupDir
|
||
if ($clearedArchiveFields.Count -gt 0) {
|
||
Write-Log ("已清空 {0} 条记录里指向不存在归档的 archive 字段：{1}" -f $clearedArchiveFields.Count, ($clearedArchiveFields -join '、')) -Level WARN
|
||
}
|
||
|
||
Write-BaknretManifest -Path $manifestPath -Manifest $manifest | Out-Null
|
||
Write-Log "manifest 已更新：$manifestPath" -Level DEBUG
|
||
}
|
||
|
||
# 孤儿归档审计：磁盘上有、但**当前清单里任何条目都不指向**的归档。
|
||
# Restore.ps1 是按清单条目去找归档的，所以孤儿是**恢复不到**的 —— 必须显式点名，
|
||
# 免得下次清理时把还有用的归档当垃圾删掉（重构前那个 2.8 GB 的归档就是这么成孤儿的）。
|
||
#
|
||
# 判据只用清单，**不能用 manifest**：manifest 会一直留着历史条目，
|
||
# 于是"从清单里删掉某个条目（或把它合并进另一个条目）"留下的归档会被历史记录遮住，
|
||
# 审计就永远不会报——那正是最需要报出来的情况。
|
||
# 只在整表运行时做：带 -Only/-Skip 时未选中的条目本来就不在 $seenBaseNames 里，
|
||
# 那种情况下报出来的全是假孤儿。
|
||
if (-not $DryRun -and $Only.Count -eq 0 -and $Skip.Count -eq 0) {
|
||
$known = @{}
|
||
foreach ($key in $seenBaseNames.Keys) { $known[$key] = $true }
|
||
|
||
$orphanArchives = @(Get-ChildItem -LiteralPath $BackupDir -File -Force -ErrorAction SilentlyContinue |
|
||
Where-Object { $_.Extension.ToLower() -in @('.7z', '.rar', '.zip', '.tar') -and -not $known.ContainsKey($_.BaseName) })
|
||
|
||
if ($orphanArchives.Count -gt 0) {
|
||
Write-Log ("发现 {0} 个孤儿归档（当前清单里没有任何条目指向，恢复不到，注意别误删）：" -f $orphanArchives.Count) -Level WARN
|
||
foreach ($orphan in $orphanArchives) {
|
||
$inManifest = $manifest.items.Contains($orphan.BaseName)
|
||
Write-Log (" - {0}（{1:N1} MB，{2}）{3}" -f $orphan.Name, ($orphan.Length / 1MB), $orphan.LastWriteTime, $(if ($inManifest) { '；manifest 里还留着它的历史记录，但清单里已经没有了' } else { '' })) -Level WARN
|
||
}
|
||
} else {
|
||
Write-Log '孤儿归档审计：没有发现（所有归档都有清单条目指向）' -Level DEBUG
|
||
}
|
||
}
|
||
|
||
if ($failures.Count -gt 0) {
|
||
Write-Log '失败条目：' -Level ERROR
|
||
foreach ($failure in $failures) { Write-Log " - $failure" -Level ERROR }
|
||
}
|
||
|
||
$summaryText = "备份完成。成功: $processed, 跳过: $skipped, 失败: $failed"
|
||
if ($DryRun) { $summaryText += ", 试运行计划: $planned" }
|
||
Write-Log $summaryText -Level INFO
|
||
|
||
$logPath = Get-BaknretLogPath
|
||
if ($logPath) { Write-Log "日志已写入：$logPath" -Level INFO }
|
||
Stop-BaknretLog
|
||
|
||
if ($failed -gt 0) { exit 1 }
|
||
exit 0
|