Lazarus Pascal

Add Files to a ZIP Using AddFile

See more Zip Examples

This example demonstrates how to use the AddFile method to add files from the local filesystem to a ZIP archive.

The example adds two files:

• One file with its relative directory path preserved
• One file stored using only its filename

The AddFile method adds references to local filesystem files. The files are not actually read or compressed until a Write* method is called.

Lazarus Pascal

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.Zip;

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

procedure RunDemo;
var
  success: Boolean;
  zip: TZip;
  saveExtraPath: Boolean;

begin
  success := False;

  zip := TZip.Create;

  success := zip.NewZip('addFileExample.zip');
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  //  Add a file and preserve its relative directory structure
  //  within the ZIP archive.
  //  
  //  The following file:
  //      c:/projects/app/docs/readme.txt
  //  
  //  Will be stored in the ZIP as:
  //      projects/app/docs/readme.txt
  //  
  saveExtraPath := True;
  success := zip.AddFile('c:/projects/app/docs/readme.txt',saveExtraPath);
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  //  Add a file using only the filename in the ZIP archive.
  //  
  //  The following file:
  //      c:/temp/logo.png
  //  
  //  Will be stored in the ZIP as:
  //      logo.png
  //  
  saveExtraPath := False;
  success := zip.AddFile('c:/temp/logo.png',saveExtraPath);
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  //  Write the ZIP archive to disk and close it.
  //  The source files are consumed at this time.
  success := zip.WriteZipAndClose();
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  WriteLn('ZIP archive created successfully.');


  zip.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.