Pack files to ZIP archive and upload it

The following example uses WinSCP .NET assembly from a PowerShell script. If you have another preferred language, you can easily translate it. The script requires the latest beta version of WinSCP.

In the latest beta version, the example is distributed in WinSCP installer as a WinSCP extension.

You can run the script (e.g. ZipUpload.ps1) from WinSCP GUI using a local custom command:

powershell.exe -File "ZipUpload.ps1" -sessionUrl "!S" -remotePath "!/" -archiveName "!?&Archive name:?archive.zip!" -pause !&

You will probably want to enable the Apply to directories option.

To use a different archive format than ZIP, you can install 7-Zip, add -use7Zip switch to the custom command; and add the -t<type> switch to the 7z.exe call in the script (e.g. -tgzip).

# @name         &ZIP and Upload...
# @command      powershell.exe -ExecutionPolicy Bypass -File "%EXTENSION_PATH%" -sessionUrl "!S" -remotePath "!/" -archiveName "!?&Archive name:?archive.zip!" -pause -sessionLogPath "%SessionLogPath%" !&
# @description  Packs the selected files to a ZIP archive and uploads it
# @flag         ApplyToDirectories
# @require      .NET 4.5
# @version      2
# @homepage     https://winscp.net/eng/docs/library_example_zip_and_upload
# @require      WinSCP 5.8.3
# @option       SessionLogPath file "&Session log file:"
 
param (
    # Use Generate URL function to obtain a value for -sessionUrl parameter.
    $sessionUrl = "sftp://user:mypassword;fingerprint=ssh-rsa-xx-xx-xx@example.com/",
    [Parameter(Mandatory)]
    $remotePath,
    [Switch]
    $pause = $False,
    [Switch]
    $use7Zip = $False,
    [Parameter(Mandatory)]
    $archiveName,
    $sessionLogPath = $Null,
    [Parameter(Mandatory, ValueFromRemainingArguments, Position=0)]
    $localPaths
)
 
try
{
    Write-Host ("Archiving {0} files to archive {1}..." -f $localPaths.Count, $archiveName)
 
    $archivePath = Join-Path ([System.IO.Path]::GetTempPath()) $archiveName
 
    if (Test-Path $archivePath)
    {
        Remove-Item $archivePath
    }
 
    # Using 7-Zip one can create also other archive formats, not just ZIP
    if ($use7Zip)
    {
        # Create archive
        # The 7z.exe can be replaced with portable 7za.exe
        & "C:\Program Files\7-Zip\7z.exe" a -tzip $archivePath $localPaths
 
        if ($LASTEXITCODE -gt 0)
        {
            throw "Archiving failed."
        }
    }
    else
    {
        Add-Type -AssemblyName "System.IO.Compression"
        Add-Type -AssemblyName "System.IO.Compression.FileSystem"
 
        $zip = [System.IO.Compression.ZipFile]::Open($archivePath, [System.IO.Compression.ZipArchiveMode]::Create)
 
        # Replace with Compress-Archive once PowerShell 5.0 is widespread
 
        foreach ($localPath in $localPaths)
        {
            $parentPath = Split-Path -Parent (Resolve-Path $localPath)
 
            if (Test-Path $localPath -PathType Leaf)
            {
                $files = $localPath
            }
            else
            {
                $files = Get-ChildItem $localPath -Recurse -File | Select-Object -ExpandProperty FullName
            }
 
            foreach ($file in $files)
            {
                $entryName = $file.Replace(($parentPath + "\"), "")
                Write-Host ("Adding {0}..." -f $entryName)
                [System.IO.Compression.ZipFileExtensions]::CreateEntryFromFile($zip, $file, $entryName) | Out-Null
            }
        }
 
        $zip.Dispose()
    }
 
    Write-Host ("Archive {0} created, uploading..." -f $archiveName)
 
    # Load WinSCP .NET assembly
    $assemblyPath = if ($env:WINSCP_PATH) { $env:WINSCP_PATH } else { $PSScriptRoot }
    Add-Type -Path (Join-Path $assemblyPath "WinSCPnet.dll")
 
    # Setup session options
    $sessionOptions = New-Object WinSCP.SessionOptions
    $sessionOptions.ParseUrl($sessionUrl)
 
    $session = New-Object WinSCP.Session
 
    try
    {
        $session.SessionLogPath = $sessionLogPath
 
        # Connect
        $session.Open($sessionOptions)
 
        $session.PutFiles($session.EscapeFileMask($archivePath), $remotePath).Check()
 
        Write-Host ("Archive {0} uploaded." -f $archiveName)
    }
    finally
    {
        # Disconnect, clean up
        $session.Dispose()
    }
 
    Remove-Item $archivePath
    $result = 0
}
catch [Exception]
{
    Write-Host ("Error: {0}" -f $_.Exception.Message)
    $result = 1
}
 
# Pause if -pause switch was used
if ($pause)
{
    Write-Host "Press any key to exit..."
    [System.Console]::ReadKey() | Out-Null
}
 
exit $result