PowerShell

Sync a Local Tree Up with Preview and Traversal Control

Demonstrates the Chilkat Ftp2.SyncRemoteTree2 method, which uploads a local tree to the current remote directory with extra controls. The arguments are the local root, the upload mode, whether to descend into subdirectories, and whether to run preview-only. In preview mode the results are available via the SyncPreview property.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The preview flag is what makes this valuable: run it first to see exactly which files would be uploaded — without transferring anything — then run it again for real once the plan looks right. That dry-run step is a strong safeguard before a large or destructive-looking sync. The descend flag lets you limit the operation to the top level, and the mode is the same set of upload rules as SyncRemoteTree.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

#  Demonstrates the Ftp2.SyncRemoteTree2 method, which uploads a local tree to the current remote
#  directory with extra traversal and preview controls.  The 1st argument is the local root, the
#  2nd is the upload mode, the 3rd selects whether to descend into subdirectories, and the 4th
#  selects preview-only (no actual transfers).

$ftp = New-Object Chilkat.Ftp2

$ftp.Hostname = "ftp.example.com"
$ftp.Username = "myFtpLogin"

#  Normally you would not hard-code the password in source.  You should instead obtain it
#  from an interactive prompt, environment variable, or a secrets vault.
$ftp.Password = "myPassword"

$success = $ftp.Connect()
if ($success -eq $false) {
    $($ftp.LastErrorText)
    exit
}

$success = $ftp.ChangeRemoteDir("public_html")
if ($success -eq $false) {
    $($ftp.LastErrorText)
    exit
}

#    0 = all selected files
#    1 = files missing on the server
#    2 = missing, or newer locally
#    3 = only files that exist remotely and are newer locally
#    4 = missing, or a different size
#    5 = missing, different size, or newer locally

$mode = 5

#  Descend into subdirectories.
$bDescend = $true

#  Preview only: determine what WOULD be uploaded without transferring anything.  The results are
#  available via the SyncPreview property.
$bPreviewOnly = $true

$success = $ftp.SyncRemoteTree2("qa_data/site",$mode,$bDescend,$bPreviewOnly)
if ($success -eq $false) {
    $($ftp.LastErrorText)
    exit
}

#  SyncPreview lists the files that would be uploaded.
$($ftp.SyncPreview)

$success = $ftp.Disconnect()
if ($success -eq $false) {
    $($ftp.LastErrorText)
    exit
}