private Path initializeOutputDirectory(Path outputDirectory) {
		if (!Files.exists(outputDirectory)) {
			try {
				return Files.createDirectories(outputDirectory);
			}
			catch (IOException e) {
				return null;
			}
		}
		return outputDirectory;
	}
This class:
<ul>
     <li>Creates a XXX_map.xml file (topic IDs to help files)</li>
     <li>Creates a XXX_TOC.xml file from a source toc.xml file</li>
     <li>Finds unused images</li>
</ul>
Ghidra/Framework/Help/src/main/java/help/JavaHelpFilesBuilder.java