(Java) SCP Sync Tree Upload

Synchronize local and remote directory trees by uploading newer or missing files to the remote server.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkSsh ssh = new CkSsh();

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

    // Connect to an SSH server:
    boolean success = ssh.Connect(hostname,port);
    if (success != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    // Wait a max of 5 seconds when reading responses..
    ssh.put_IdleTimeoutMs(5000);

    // Authenticate using login/password:
    success = ssh.AuthenticatePw("myLogin","myPassword");
    if (success != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    // Once the SSH object is connected and authenticated, we use it
    // in our SCP object.
    CkScp scp = new CkScp();

    success = scp.UseSsh(ssh);
    if (success != true) {
        System.out.println(scp.lastErrorText());
        return;
        }

    // The remoteRoot is relative to the HOME directory of the SSH user account.
    String remoteRoot = "workspace/projectB";
    String localRoot = "c:/aaworkarea/scp/workspace/projectB";

    // Upload synchronization modes:
    // mode=0: Upload all files
    // mode=1: Upload all files that do not exist on the FTP server.
    // mode=2: Upload newer or non-existant files.
    // mode=3: Upload only newer files.  If a file does not already exist on the FTP 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.

    // Additional files and directores can be excluded by setting the SyncMustNotMatch property.
    // The SyncMustNotMatch patterns apply only to the final filename or directory part of a path.
    // If a directory matches, then it will not be traversed in a recursive traversal.
    // 
    scp.put_SyncMustNotMatch("*.o;*.obj;*.log; temp");

    // The SyncMustMatch property can be set to restrict the files uploaded to only those
    // matching at least one pattern in a set.
    scp.put_SyncMustMatch("*.cpp; *.h");

    // Do the recursive sync to upload newer or non-existant files:
    boolean bRecurse = true;
    int mode = 2;
    success = scp.SyncTreeUpload(localRoot,remoteRoot,mode,bRecurse);
    if (success != true) {
        System.out.println(scp.lastErrorText());
        return;
        }

    // The files actually uploaded can be examined in the SyncedFiles property.
    // It is a string property that contains the relative path, one per line, of each
    // file uploaded.
    System.out.println("Files uploaded: ");
    System.out.println(scp.syncedFiles());

    System.out.println("----");
    System.out.println("SCP sync upload success.");

    // Disconnect
    ssh.Disconnect();
  }
}