VB.NET

Get the Files Affected by an FTP Sync

Demonstrates the Chilkat Ftp2.GetSyncedFiles method, which reports the relative paths affected by the most recent synchronization. The only argument is a StringTable that receives the paths (uploaded, downloaded, or deleted).

Background: A sync call reports only overall success, but you usually want to know what actually changed — for logging, for triggering follow-up work on just the new files, or to confirm an incremental sync did the minimal transfer. An empty result is meaningful too: it means everything was already up to date. Call it immediately after the sync, before another operation replaces the recorded list.

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Dim success As Boolean = False

'  Demonstrates the Ftp2.GetSyncedFiles method, which reports the relative paths affected by the
'  most recent synchronization operation.  The only argument is a StringTable that receives the
'  paths.

Dim ftp As New 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 = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


success = ftp.ChangeRemoteDir("public_html")
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


'  Perform a sync.
Dim mode As Integer = 6
success = ftp.SyncLocalTree("qa_output/site",mode)
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


'  Get the list of files that were uploaded, downloaded, or deleted by that sync.
Dim synced As New Chilkat.StringTable
ftp.GetSyncedFiles(synced)

Dim n As Integer = synced.Count
Debug.WriteLine("Affected files: " & n)
Dim i As Integer
For i = 0 To n - 1
    Dim relPath As String = synced.StringAt(i)
    If (synced.LastMethodSuccess = False) Then
        Debug.WriteLine(synced.LastErrorText)
        Exit Sub
    End If

    Debug.WriteLine(relPath)
Next

success = ftp.Disconnect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If