PowerShell Hot Copy Backup of Subversion repositories

PsSvnBackup.ps1

# -------------------------------------------------------------------------------------------------
#  Does a hot copy backup of all Subversion repositories.
# -------------------------------------------------------------------------------------------------

$hotCopySource = "C:\Subversion\Repositories"
$hotCopyDest = "C:\SubversionBackups"
$svnadmin_exe = "C:\Program Files (x86)\VisualSVN Server\bin\svnadmin.exe"
$7za_exe = "C:\Subversion\7za.exe"

if ([IO.Directory]::Exists($hotCopyDest)) {
    Write-Output "Remove Directory $hotCopyDest"
    Remove-Item $hotCopyDest -Recurse -Force
}
else {
    Write-Output "Directory $hotCopyDest does not exist.  Skipping deletion"
}


Write-Output "Create Directory $hotCopyDest"
mkdir $hotCopyDest | Out-Null

$oldDir = pwd
cd $hotCopySource

Write-Output "Hot Copy $hotCopySource"

$repoDirs = dir | where { $_.PsIsContainer } | foreach-object { $_.Name }

foreach ($repoDir in $repoDirs) {
    $srcDir = [IO.Path]::Combine($hotCopySource, $repoDir)
    $destDir = [IO.Path]::Combine($hotCopyDest, $repoDir)
    Write-Output "Hot Copy $srcDir"
    & $svnadmin_exe hotcopy $srcDir $destDir
    
    if ($lastExitCode -ne 0) {
        throw "Error: failed to 'svnadmin hotcopy' $srcDir to $destDir"
    }
}

$7zOutput = [IO.Path]::Combine($hotCopyDest, "Subversion Backups.7z")
& $7za_exe a $7zOutput $hotCopyDest\* -r

if ($LastExitCode -ne 0) {
    throw "Error: failed to compress $hotCopyDest\* using 7-zip"
}

cd $oldDir
Write-Output "Done"

The script woks very fine. Thanks!