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/WizardZipFileExportPage1.java
int lastSeparatorIndex = currentSourceString
                .lastIndexOf(File.separator);
        if (lastSeparatorIndex != -1)
            dialog.setFilterPath(currentSourceString.substring(0,
                    lastSeparatorIndex));
        String selectedFileName = dialog.open();
        if (selectedFileName != null)
            setDestinationValue(selectedFileName);
    }
    /**
     *	Hook method for saving widget values for restoration by the next instance
     *	of this class.
     */
    protected void internalSaveWidgetValues() {
        
        IDialogSettings settings = getDialogSettings();
        if (settings != null) {
            String[] directoryNames = settings
                    .getArray(STORE_DESTINATION_NAMES_ID);
            if (directoryNames == null)
                directoryNames = new String[0];
            String[] newDirectoryNames = new String[directoryNames.length + 1];
            System.arraycopy(directoryNames, 0, newDirectoryNames, 1,
                    directoryNames.length);
            newDirectoryNames[0] = getDestinationValue();
            settings.put(STORE_DESTINATION_NAMES_ID, directoryNames);
            
            settings.put(STORE_OVERWRITE_EXISTING_FILE_ID,
                    overwriteExistingFileCheckbox.getSelection());
            settings.put(STORE_CREATE_STRUCTURE_ID,