private JComponent createExistingRepoButton(String[] repositoryNames) {
		existingRepButton = new GRadioButton("Existing Repository", (repositoryNames.length > 0));
		existingRepButton.setEnabled(repositoryNames.length > 0);
		buttonGroup.add(existingRepButton);
		return existingRepButton;
	}
Panel that shows a list of existing repositories, or allows the user
to enter the name of a new repository to be created. Used by the {@link RepositoryStep} of
either the new project wizard, the "convert to shared" wizard, or the "change repository"
wizard.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/wizard/project/RepositoryPanel.java