Better encapsulation - force SpotlessTask clients to use getters.

Author: nedtwigg

plugin-gradle/src/main/java/com/diffplug/gradle/spotless/IdeHook.java

@@ -42,8 +42,8 @@ static void performHook(SpotlessTaskImpl spotlessTask) {
 		}
 		if (spotlessTask.getTarget().contains(file)) {
 			try (Formatter formatter = spotlessTask.buildFormatter()) {
-				if (spotlessTask.ratchet != null) {
-					if (spotlessTask.ratchet.isClean(spotlessTask.getProjectDir().get().getAsFile(), spotlessTask.rootTreeSha, file)) {
+				if (spotlessTask.getRatchet() != null) {
+					if (spotlessTask.getRatchet().isClean(spotlessTask.getProjectDir().get().getAsFile(), spotlessTask.getRootTreeSha(), file)) {
 						dumpIsClean();
 						return;
 					}

plugin-gradle/src/main/java/com/diffplug/gradle/spotless/SpotlessTask.java

@@ -69,9 +69,9 @@ public void setLineEndingsPolicy(LineEnding.Policy lineEndingsPolicy) {
 
 	/*** API which performs git up-to-date tasks. */
 	@Nullable
-	GitRatchetGradle ratchet;
+	private GitRatchetGradle ratchet;
 	/** The sha of the tree at repository root, used for determining if an individual *file* is clean according to git. */
-	ObjectId rootTreeSha;
+	private ObjectId rootTreeSha;
 	/**
 	 * The sha of the tree at the root of *this project*, used to determine if the git baseline has changed within this folder.
 	 * Using a more fine-grained tree (rather than the project root) allows Gradle to mark more subprojects as up-to-date

plugin-gradle/src/main/java/com/diffplug/gradle/spotless/SpotlessTaskImpl.java

@@ -92,7 +92,7 @@ private void processInputFile(Formatter formatter, File input) throws IOExceptio
 		File output = getOutputFile(input);
 		getLogger().debug("Applying format to " + input + " and writing to " + output);
 		PaddedCell.DirtyState dirtyState;
-		if (ratchet != null && ratchet.isClean(getProjectDir().get().getAsFile(), rootTreeSha, input)) {
+		if (getRatchet() != null && getRatchet().isClean(getProjectDir().get().getAsFile(), getRootTreeSha(), input)) {
 			dirtyState = PaddedCell.isClean();
 		} else {
 			dirtyState = PaddedCell.calculateDirtyState(formatter, input);