29 lines
1.2 KiB
PowerShell
29 lines
1.2 KiB
PowerShell
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# Backup_QVW.ps1 — rolling ring of pre-reload QVW snapshots.
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# Usage: powershell -File Backup_QVW.ps1 -QvwPath "..\4.Apps.QVW\MyApp.qvw" [-Keep 20]
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# Default retention 20 slots (a day of reloads won't evict good edits).
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# NOTE: this is a FALLBACK. Primary safety net is git commits in Reload_*.bat.
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param(
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[Parameter(Mandatory=$true)][string]$QvwPath,
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[int]$Keep = 20
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)
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$ErrorActionPreference = "Stop"
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if (-not (Test-Path $QvwPath)) { Write-Host "No QVW to back up: $QvwPath"; exit 0 }
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$dir = Split-Path $QvwPath -Parent
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$name = [System.IO.Path]::GetFileNameWithoutExtension($QvwPath)
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$ext = [System.IO.Path]::GetExtension($QvwPath)
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$backupDir = Join-Path $dir "backups"
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if (-not (Test-Path $backupDir)) { New-Item -ItemType Directory -Path $backupDir -Force | Out-Null }
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$stamp = Get-Date -Format "yyyyMMdd_HHmmss"
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$dest = Join-Path $backupDir ($name + "_" + $stamp + $ext)
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Copy-Item $QvwPath $dest -Force
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Write-Host "Backed up: $dest"
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# Prune: keep only $Keep most-recent backups matching "$name_*.qvw"
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Get-ChildItem $backupDir -Filter ($name + "_*" + $ext) -File |
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Sort-Object LastWriteTime -Descending |
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Select-Object -Skip $Keep |
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ForEach-Object { Remove-Item $_.FullName -Force; Write-Host "Pruned: $($_.Name)" }
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