20 lines
1.3 KiB
PowerShell
20 lines
1.3 KiB
PowerShell
param([Parameter(Mandatory=$true)][string]$OutputDirectory,[int]$RetentionDays=30)
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$ErrorActionPreference='Stop'
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if(-not $env:DATABASE_URL){throw 'DATABASE_URL is required'}
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$uri=[Uri]$env:DATABASE_URL
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if($uri.Scheme -ne 'mysql'){throw 'DATABASE_URL must use mysql'}
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$database=$uri.AbsolutePath.TrimStart('/')
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if(-not $database){throw 'database name is required'}
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$resolved=[IO.Path]::GetFullPath($OutputDirectory)
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New-Item -ItemType Directory -Force -Path $resolved | Out-Null
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$stamp=(Get-Date).ToUniversalTime().ToString('yyyyMMddTHHmmssZ')
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$target=Join-Path $resolved "$database-$stamp.sql"
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$credential=$uri.UserInfo.Split(':',2)
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$env:MYSQL_PWD=[Uri]::UnescapeDataString($credential[1])
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& mysqldump --single-transaction --set-gtid-purged=OFF --host $uri.Host --port $uri.Port --user ([Uri]::UnescapeDataString($credential[0])) --result-file $target $database
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if($LASTEXITCODE -ne 0){throw 'mysqldump failed'}
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$hash=(Get-FileHash -Algorithm SHA256 -LiteralPath $target).Hash.ToLowerInvariant()
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Set-Content -LiteralPath "$target.sha256" -Value "$hash $([IO.Path]::GetFileName($target))"
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Get-ChildItem -LiteralPath $resolved -File | Where-Object {$_.LastWriteTimeUtc -lt (Get-Date).ToUniversalTime().AddDays(-$RetentionDays) -and ($_.Extension -eq '.sql' -or $_.Name.EndsWith('.sql.sha256'))} | Remove-Item -Force
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Write-Output $target
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