Collect files to tar and compress

Tar purpose

Tar archive allows you to combine several files into a single file. You may compress the joint file, too.

Collecting without compression

There is a sample of collecting two files into a tar archive.

try (FileOutputStream tarFile = new FileOutputStream("joint.tar")) {
    File fi1 = new File("text.txt");
    File fi2 = new File("picture.png");

    try (TarArchive archive = new TarArchive()) {
        archive.createEntry("text.txt", fi1);
        archive.createEntry("picture.png", fi2);
        archive.save(tarFile);
    }
} catch (IOException ex) {
    System.out.println(ex);
}

Compressing tar archive

In Unix-like operating systems tar utility allows compressing tar archive to gzip on creation. Aspose.Zip provides similar functionality with the saveGzipped method.

try (TarArchive archive = new TarArchive()) {
    archive.createEntry("text.txt", "D:\\texts\\article.txt");
    archive.createEntry("picture.png", "D:\\Picture\\photo.png");
    archive.saveGzipped("result.tar.gz");
}

Nowadays xz utility has become popular in Linux and Unix. Its compression of tar is seamlessly integrated into Aspose.Zip. Use the saveXzCompressed method of a tar archive.

try (TarArchive archive = new TarArchive()) {
    archive.createEntry("text.txt", "D:\\texts\\article.txt");
    archive.createEntry("picture.png", "D:\\Picture\\photo.png");
    archive.saveXzCompressed("result.tar.xz");
}