Collect files to cpio and compress

Cpio purpose

Cpio format is similar to tar. Cpio 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 cpio archive.

using (FileStream cpioFile = File.Open("combined.cpio", FileMode.Create))
{
    FileInfo fi1 = new FileInfo("alice29.txt");
    FileInfo fi2 = new FileInfo("asyoulik.txt");

    using (CpioArchive archive = new CpioArchive())
    {
        archive.CreateEntry("alice29.txt", fi1);
        archive.CreateEntry("asyoulik.txt", fi2);
        archive.Save(cpioFile, format);
    }
}

Compressing cpio archive

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

using (var archive = new CpioArchive())
{
    archive.CreateEntries(@"C:\folder", false);
    archive.SaveGzipped("result.cpio.gz");
}

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

using (var archive = new CpioArchive())
{
    archive.CreateEntries(@"C:\folder", false);
    archive.SaveXzCompressed("result.cpio.xz");
}