Pascal (Lazarus/Delphi)

SCP Sync Tree Download

See more SCP Examples

Synchronize local and remote directory trees by downloading newer or missing files from the remote server. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Ssh,
  Chilkat.Scp;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  ssh: TSsh;
  hostname: string;
  port: Integer;
  scp: TScp;
  remoteRoot: string;
  localRoot: string;
  mode: Integer;
  bRecurse: Boolean;

begin
  success := False;

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

  ssh := TSsh.Create;

  //  Connect to an SSH server:

  //  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
    begin
      WriteLn(ssh.LastErrorText);
      Exit;
    end;

  //  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
    begin
      WriteLn(ssh.LastErrorText);
      Exit;
    end;

  //  Once the SSH object is connected and authenticated, we use it
  //  in our SCP object.
  scp := TScp.Create;

  success := scp.UseSsh(ssh);
  if (success <> True) then
    begin
      WriteLn(scp.LastErrorText);
      Exit;
    end;

  remoteRoot := 'workspace/php';
  localRoot := '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.
  mode := 2;

  //  Sync the entire tree by using recursion.
  bRecurse := True;

  success := scp.SyncTreeDownload(remoteRoot,localRoot,mode,bRecurse);
  if (success <> True) then
    begin
      WriteLn(scp.LastErrorText);
      Exit;
    end;

  WriteLn('SCP sync download success.');

  //  Disconnect
  ssh.Disconnect();


  ssh.Free;
  scp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.