PowerBuilder

Extract a .tar.gz Archive to a Directory

See more Gzip Examples

This example demonstrates how to use the UnTarGz method to extract a .tar.gz archive to a specified directory.

The method performs both the Gzip decompression and TAR extraction in a single step. It operates in streaming mode, meaning it does not create temporary files and uses a constant, minimal amount of memory regardless of archive size.

The bNoAbsolute parameter is set to _TRUE_ in this example to prevent extraction of files with absolute paths. This is a safety measure that helps avoid overwriting files in unintended locations (such as system directories).

This method is ideal for efficiently extracting large .tar.gz archives while maintaining security and low memory usage.

PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Gzip
string ls_TgzPath
string ls_DestDir
integer li_NoAbsolute

li_Success = 0

// This example demonstrates how to extract a .tar.gz archive to a directory.

loo_Gzip = create oleobject
li_rc = loo_Gzip.ConnectToNewObject("Chilkat.Gzip")
if li_rc < 0 then
    destroy loo_Gzip
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// The .tar.gz file to be extracted:
ls_TgzPath = "c:/temp/archive.tar.gz"

// The destination directory:
ls_DestDir = "c:/temp/outputDir"

// Set to 1 to prevent extraction of files with absolute paths:
li_NoAbsolute = 1

// Extract the archive:
li_Success = loo_Gzip.UnTarGz(ls_TgzPath,ls_DestDir,li_NoAbsolute)
if li_Success = 0 then
    Write-Debug loo_Gzip.LastErrorText
    destroy loo_Gzip
    return
end if

Write-Debug "Archive successfully extracted to: " + ls_DestDir


destroy loo_Gzip