Pascal (Lazarus/Delphi)

SFTP Upload - Synchronize Directory Tree

See more SFTP Examples

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. 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.SFtp;

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

procedure RunDemo;
var
  success: Boolean;
  sftp: TSFtp;
  remoteDir: string;
  localDir: string;
  mode: Integer;
  recursive: Boolean;

begin
  success := False;

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

  sftp := TSFtp.Create;

  success := sftp.Connect('my-ssh-server.com',22);
  if (success = True) then
    begin
      success := sftp.AuthenticatePw('mySshLogin','mySshPassword');
    end;
  if (success = True) then
    begin
      success := sftp.InitializeSftp();
    end;
  if (success <> True) then
    begin
      WriteLn(sftp.LastErrorText);
      Exit;
    end;

  //  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.

  remoteDir := 'syncUploadTest';
  localDir := '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.
  mode := 5;
  //  This example turns on recursion to synchronize the entire tree. 
  //  Recursion can be turned off to synchronize the files of a single directory.
  recursive := True;
  success := sftp.SyncTreeUpload(localDir,remoteDir,mode,recursive);
  if (success <> True) then
    begin
      WriteLn(sftp.LastErrorText);
      Exit;
    end;

  WriteLn('Success.');


  sftp.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.