Vala GSF Samples

ZIP Archive decompression

This sample shows usage of LibGSF to deflate a ZIP archive.

Requires Vala 0.8.0 & LibGSF 1.14.17

int main () {

        // declare objects
        Gsf.InputStdio file;
        Gsf.InfileZip zipfile;
        Gsf.OutfileStdio folder;

        // load the ZIP file
    try { file = new Gsf.InputStdio ("myarchive.zip"); }
    catch { stderr.printf ("File \"myarchive.zip\" not found");
            return 1; }
        //
    try { zipfile = new Gsf.InfileZip (file); }
    catch { stderr.printf ("Not a ZIP file");
            return 1; }

        // create the destination directory
    try { folder = new Gsf.OutfileStdio ("myarchive"); }
    catch { stderr.printf ("Cannot write to current directory");
            return 1; }

        // get the number of root items in the archive
        // and iterate through them, writing each one
        // to the destination directory
    int num_items = zipfile.num_children ();
    for (int i = 0; i < num_items; i++)
    {
        var item = zipfile.child_by_index (i);
        var itemfile = Gsf.StructuredBlob.read (item);

        itemfile.write (folder);
    }

    return 0;
}

Compile and Run

  • Put a zip archive named "myarchive.zip" in current folder and :

$ valac --pkg libgsf-1 gsf-sample.vala
$ ./gsf-sample


Vala/Examples

Projects/Vala/GSFSample (last edited 2013-11-22 16:48:26 by WilliamJonMcCann)