deploys to target folder from ZIP archive

Deploy-ArchiveFolder.ps1

trap 
{ 
    Write-Output $_ 
    exit 1 
}

$id = [System.Security.Principal.WindowsIdentity]::GetCurrent()
Write-Output "Running as $($id.Name)..."

Add-Type -AssemblyName "System.IO"
Add-Type -AssemblyName "System.IO.Compression"
Add-Type -AssemblyName "System.IO.Compression.FileSystem"

$archiveFile = ".\web-deploy-package\DEV\My.Deployment.zip"
$root = "/PackageTmp/"
$target = "\\MyDev\target"

if(-not(Test-Path -Path $archiveFile -PathType Leaf))
{
    Write-Output "The expected archive file ($archiveFile) is not here."
    exit 1
}

$archiveFile = Resolve-Path -Path $archiveFile
Write-Output "Resolved archive file: $archiveFile."

if(-not(Test-Path -Path $target -PathType Container))
{
    Write-Output "The expected target folder ($target) is not here."
    exit 1
}

$fileMode = [System.IO.FileMode]::Open
$zipArchiveMode = [System.IO.Compression.ZipArchiveMode]::Read;
$leaveOpen = $false;
$overwrite = $true

$stream = New-Object System.IO.FileStream -ArgumentList @($archiveFile, $fileMode)
$zipFile = New-Object System.IO.Compression.ZipArchive -ArgumentList @($stream, $zipArchiveMode, $leaveOpen)

try
{
    $zipFile.Entries |
        Where-Object { $_.FullName -like "*$root*" } |
        ForEach-Object {
            $start = $_.FullName.IndexOf($root) + $root.Length
            $p = $_.FullName.Substring($start)
            if($p.Length -eq 0) { return }

            $p = [System.IO.Path]::Combine($target, $p)
            $p = [System.IO.Path]::GetFullPath($p)
            $p
            if($p.EndsWith([System.IO.Path]::DirectorySeparatorChar)) {
                if( -Not (Test-Path $p)) {
                    New-Item -ItemType directory -Path $p | Out-Null
                }
                return
            }

            [System.IO.Compression.ZipFileExtensions]::ExtractToFile($_, $p, $overwrite)
        }
}
finally
{
    if ($null -ne $stream -and $stream -is [System.IDisposable])
    {
        $stream.Dispose()
    }

    if ($null -ne $zipFile -and $zipFile -is [System.IDisposable])
    {
        $zipFile.Dispose()
    }
}