public DomainFile getProjectArchiveFile(String projectName, String pathname) {
		Project project = tool.getProjectManager().getActiveProject();
		if (project != null && project.getName().equals(projectName)) {
			DomainFile df = project.getProjectData().getFile(pathname);
			if (df != null && DataTypeArchive.class.isAssignableFrom(df.getDomainObjectClass())) {
				return df;
			}
		}
		return null;
	}
Get a project archive file by project name and pathname
@param projectName the project name
@param pathname the project pathname
@return project archive domain file or null if it does not exist
or can not be found (e.g., projectName is not the active project)
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/DataTypeManagerPlugin.java