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
*	value does not have the required suffix then add it first.
     *
     *	@return java.lang.String
     */
    protected String getDestinationValue() {
        String requiredSuffix = getOutputSuffix();
        String destinationText = super.getDestinationValue();
        if (!destinationText.toLowerCase().endsWith(
                requiredSuffix.toLowerCase()))
            destinationText += requiredSuffix;
        return destinationText;
    }
    /**
     *	Answer the suffix that files exported from this wizard must have.
     *	If this suffix is a file extension (which is typically the case)
     *	then it must include the leading period character.
     *
     *	@return java.lang.String
     */
    protected String getOutputSuffix() {
        return ".zip";
    }
    /**
     *	Open an appropriate destination browser so that the user can specify a source
     *	to import from
     */
    protected void handleDestinationBrowseButtonPressed() {
        FileDialog dialog = new FileDialog(getContainer().getShell(), SWT.SAVE);
        dialog.setFilterExtensions(new String[] { "*.jar;*.zip" });
        String currentSourceString = getDestinationValue();