/** * Returns the same set of artifacts as createMiddleman() would, but without actually creating * middlemen. */ private Artifact getMiddlemanArtifact(MiddlemanFactory middlemanFactory) { if (compilationPrerequisites.isEmpty()) { return null; } return middlemanFactory.getErrorPropagatingMiddlemanArtifact( ruleContext.getLabel().toString(), purpose, ruleContext .getConfiguration() .getMiddlemanDirectory(ruleContext.getRule().getRepository())); }