selfhosted-apps-docker/kopia_backup/win_vss_before.ps1

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2023-03-05 09:50:50 +00:00
if ($args.Length -eq 0) {
$kopiaSnapshotId = $env:KOPIA_SNAPSHOT_ID
$kopiaSourcePath = $env:KOPIA_SOURCE_PATH
} else {
$kopiaSnapshotId = $args[0]
$kopiaSourcePath = $args[1]
}
$sourceDrive = Split-Path -Qualifier $kopiaSourcePath
$sourcePath = Split-Path -NoQualifier $kopiaSourcePath
# use Kopia snapshot ID as mount point name for extra caution for duplication
$mountPoint = "${PSScriptRoot}\${kopiaSnapshotId}"
if (([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
$shadowId = (Invoke-CimMethod -ClassName Win32_ShadowCopy -MethodName Create -Arguments @{ Volume = "${sourceDrive}\" }).ShadowID
$shadowDevice = (Get-CimInstance -ClassName Win32_ShadowCopy | Where-Object { $_.ID -eq $shadowId }).DeviceObject
if (-not $shadowDevice) {
# fail the Kopia snapshot early if shadow copy was not created
exit 1
}
cmd /c mklink /d $mountPoint "${shadowDevice}\"
} else {
$proc = Start-Process 'powershell' '-f', $MyInvocation.MyCommand.Path, $kopiaSnapshotId, $kopiaSourcePath -PassThru -Verb RunAs -WindowStyle Hidden -Wait
if ($proc.ExitCode) {
exit $proc.ExitCode
}
}
Write-Output "KOPIA_SNAPSHOT_PATH=${mountPoint}${sourcePath}"