Bug 33897 [Import/Export] Export to .tar.gz or .tar.bz2
Right click a Java project. Choose "Export...". A window opens where you can choose between different export targets. There is no ".tar.gz" target or ".tar.bz2". I would like to have either one (or both). If I must choose one, I prefer ".tar.bz2", but I don't really have a strong opinion about it; ".tar.gz" would be fine as well. The reason I somewhat prefer bzip2 is that bzip2 makes files noticably smaller than gzip, and my impression is that gzip is slowly being outcompeted. A Linux-GTK implementation would be good enough for me, but it is possible that "Unix All" would be a better platform as other Unix users could probably be interested in this as well.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/ZipFileExportOperation.java
int totalWork = IProgressMonitor.UNKNOWN;
            try {
                if (resourcesToExport == null)
                    totalWork = countChildrenOf(resource);
                else
                    totalWork = countSelectedResources();
            } catch (CoreException e) {
                
            }
            monitor.beginTask(DataTransferMessages
                    .getString("DataTransfer.exportingTitle"), totalWork); 
            if (resourcesToExport == null) {
                exportResource(resource);
            } else {
                
                exportSpecifiedResources();
            }
            try {
                exporter.finished();
            } catch (IOException e) {
                throw new InvocationTargetException(
                        e,
                        DataTransferMessages
                                .format(
                                        "ZipExport.cannotClose", new Object[] { e.getMessage() })); 
            }
        } finally {
            monitor.done();
        }