VB.NET

SFTP Upload - Synchronize Directory Tree

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Demonstrates how to upload files to synchronize a local directory tree with a remote directory tree. The SyncTreeUpload method recursively descends a local directory tree and uploads files based on existence, last-mod date/time and/or size differences. VB.NET

Dim success As Boolean = False

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim sftp As New Chilkat.SFtp

success = sftp.Connect("my-ssh-server.com",22)
If (success = True) Then
    success = sftp.AuthenticatePw("mySshLogin","mySshPassword")
End If

If (success = True) Then
    success = sftp.InitializeSftp()
End If

If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' Synchronize (by uploading) the local directory tree rooted at "qa_data/sftpUploadTree"
' with the remote directory tree rooted at "syncUploadTest"
' Both directories are relative paths.  The remote directory
' is relative to the HOME directory of the SSH user account.
' The local directory is relative to the current working directory of the process.
' It is also possible to use absolute paths.

Dim remoteDir As String = "syncUploadTest"
Dim localDir As String = "qa_data/sftpUploadTree"

' Possible modes that can be passed to the SyncTreeUpload method are:
' mode=0: Upload all files
' mode=1: Upload all files that do not exist on the server.
' mode=2: Upload newer or non-existant files.
' mode=3: Upload only newer files. If a file does not already exist on the server, it is not uploaded.
' mode=4: transfer missing files or files with size differences.
' mode=5: same as mode 4, but also newer files.

' This example will use mode 5 to upload missing, newer, or files with size differences.
Dim mode As Integer = 5
' This example turns on recursion to synchronize the entire tree. 
' Recursion can be turned off to synchronize the files of a single directory.
Dim recursive As Boolean = True
success = sftp.SyncTreeUpload(localDir,remoteDir,mode,recursive)
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("Success.")