B4X

SCP Sync Tree Download

See more SCP Examples

Synchronize local and remote directory trees by downloading newer or missing files from the remote server. B4X

Dim success As Boolean = False

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

Dim ssh As ChilkatSsh
ssh.Initialize("ssh")

'  Connect to an SSH server:
Dim hostname As String
Dim port As Int

'  Hostname may be an IP address or hostname:
hostname = "www.some-ssh-server.com"
port = 22

success = ssh.Connect(hostname, port)
If success <> True Then
    Log(ssh.LastErrorText)
    Return
End If


'  Wait a max of 5 seconds when reading responses..
ssh.IdleTimeoutMs = 5000

'  Authenticate using login/password:
success = ssh.AuthenticatePw("myLogin", "myPassword")
If success <> True Then
    Log(ssh.LastErrorText)
    Return
End If


'  Once the SSH object is connected and authenticated, we use it
'  in our SCP object.
Dim scp As ChilkatScp
scp.Initialize("scp")

success = scp.UseSsh(ssh)
If success <> True Then
    Log(scp.LastErrorText)
    Return
End If


Dim remoteRoot As String = "workspace/php"
Dim localRoot As String = "c:/aaworkarea/scp/workspace/php"

'  Download synchronization modes:
'  mode=0: Download all files
'  mode=1: Download all files that do not exist on the local filesystem.
'  mode=2: Download newer or non-existant files.
'  mode=3: Download only newer files.  
'          If a file does not already exist on the local filesystem, it is not downloaded from the server.
'  mode=5: Download only missing files or files with size differences.
'  mode=6: Same as mode 5, but also download newer files.
Dim mode As Int = 2

'  Sync the entire tree by using recursion.
Dim bRecurse As Boolean = True

success = scp.SyncTreeDownload(remoteRoot, localRoot, mode, bRecurse)
If success <> True Then
    Log(scp.LastErrorText)
    Return
End If


Log("SCP sync download success.")

'  Disconnect
ssh.Disconnect