Merge pull request #584 from diffplug/fix/581

Fix `check` and `apply` in the same build

plugin-gradle/CHANGES.md

@@ -3,7 +3,10 @@
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `3.27.0`).
 
 ## [Unreleased]
-* Support for ktfmt in KotlinGradleExtension ([#583](https://github.com/diffplug/spotless/pull/583))
+### Added
+* Support for ktfmt in KotlinGradleExtension. ([#583](https://github.com/diffplug/spotless/pull/583))
+### Fixed
+* Users can now run `spotlessCheck` and `spotlessApply` in the same build. ([#584](https://github.com/diffplug/spotless/pull/584))
 
 ## [4.0.1] - 2020-05-21
 ### Fixed

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

@@ -635,7 +635,7 @@ public SpotlessApply createIndependentApplyTask(String taskName) {
 		// create the apply task
 		SpotlessApply applyTask = root.project.getTasks().create(taskName, SpotlessApply.class);
 		applyTask.setSpotlessOutDirectory(spotlessTask.getOutputDirectory());
-		applyTask.source = spotlessTask;
+		applyTask.linkSource(spotlessTask);
 		applyTask.dependsOn(spotlessTask);
 
 		return applyTask;

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

@@ -30,7 +30,14 @@
 import org.gradle.api.tasks.TaskAction;
 
 public class SpotlessApply extends DefaultTask {
-	SpotlessTask source;
+	private SpotlessTask source;
+
+	/** Bidirectional link between Apply and Spotless allows check to know if Apply ran or not. */
+	void linkSource(SpotlessTask source) {
+		this.source = source;
+		source.applyTask = this;
+	}
+
 	private File spotlessOutDirectory;
 
 	@PathSensitive(PathSensitivity.RELATIVE)

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

@@ -49,11 +49,22 @@ public void setSpotlessOutDirectory(File spotlessOutDirectory) {
 		this.spotlessOutDirectory = spotlessOutDirectory;
 	}
 
+	public void performActionTest() throws Exception {
+		performAction(true);
+	}
+
 	@TaskAction
 	public void performAction() throws Exception {
+		performAction(false);
+	}
+
+	private void performAction(boolean isTest) {
 		ConfigurableFileTree files = getProject().fileTree(spotlessOutDirectory);
 		if (files.isEmpty()) {
 			getState().setDidWork(source.getDidWork());
+		} else if (!isTest && getProject().getGradle().getTaskGraph().hasTask(source.applyTask)) {
+			// if our matching apply has already run, then we don't need to do anything
+			getState().setDidWork(false);
 		} else {
 			List<File> problemFiles = new ArrayList<>();
 			files.visit(new FileVisitor() {

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

@@ -249,7 +249,6 @@ private <T extends FormatExtension> T maybeCreate(String name, Class<T> clazz) {
 	 * - "spotless{FormatName}Check" will depend on the main spotless task in `check` mode
 	 * - "spotless{FormatName}Apply" will depend on the main spotless task in `apply` mode
 	 */
-	@SuppressWarnings("rawtypes")
 	private void createFormatTasks(String name, FormatExtension formatExtension) {
 		// create the SpotlessTask
 		String taskName = EXTENSION + SpotlessPlugin.capitalize(name);
@@ -268,9 +267,12 @@ private void createFormatTasks(String name, FormatExtension formatExtension) {
 
 		SpotlessApply applyTask = project.getTasks().create(taskName + APPLY, SpotlessApply.class);
 		applyTask.setSpotlessOutDirectory(spotlessTask.getOutputDirectory());
-		applyTask.source = spotlessTask;
+		applyTask.linkSource(spotlessTask);
 		applyTask.dependsOn(spotlessTask);
 
+		// if the user runs both, make sure that apply happens first,
+		checkTask.mustRunAfter(applyTask);
+
 		// set the filePatterns property
 		project.afterEvaluate(unused -> {
 			String filePatterns;

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

@@ -53,6 +53,15 @@
 
 @CacheableTask
 public class SpotlessTask extends DefaultTask {
+	SpotlessApply applyTask;
+
+	/** @deprecated internal use only, allows coordination between check and apply when they are in the same build */
+	@Internal
+	@Deprecated
+	public SpotlessApply getApplyTask() {
+		return applyTask;
+	}
+
 	// set by SpotlessExtension, but possibly overridden by FormatExtension
 	protected String encoding = "UTF-8";
 

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/DiffMessageFormatterTest.java

@@ -39,21 +39,16 @@
 public class DiffMessageFormatterTest extends ResourceHarness {
 
 	private class Bundle {
-		String name;
 		Project project = TestProvisioner.gradleProject(rootFolder());
 		File file;
-		File outputFile;
 		SpotlessTask task;
 		SpotlessCheck check;
-		SpotlessApply apply;
 
 		Bundle(String name) throws IOException {
-			this.name = name;
 			file = setFile("src/test." + name).toContent("CCC");
 			task = createFormatTask(name);
 			check = createCheckTask(name, task);
-			apply = createApplyTask(name, task);
-			outputFile = new File(task.getOutputDirectory() + "/src", file.getName());
+			createApplyTask(name, task);
 		}
 
 		private SpotlessTask createFormatTask(String name) {
@@ -72,7 +67,7 @@ private SpotlessCheck createCheckTask(String name, SpotlessTask source) {
 
 		private SpotlessApply createApplyTask(String name, SpotlessTask source) {
 			SpotlessApply task = project.getTasks().create("spotless" + SpotlessPlugin.capitalize(name) + "Apply", SpotlessApply.class);
-			task.source = source;
+			task.linkSource(this.task);
 			task.setSpotlessOutDirectory(source.getOutputDirectory());
 			return task;
 		}
@@ -86,24 +81,9 @@ String checkFailureMsg() {
 			}
 		}
 
-		void diagnose() throws IOException {
-			SpotlessDiagnoseTask diagnose = project.getTasks().create("spotless" + SpotlessPlugin.capitalize(name) + "Diagnose", SpotlessDiagnoseTask.class);
-			diagnose.source = task;
-			diagnose.performAction();
-		}
-
-		void format() throws Exception {
-			execute(task);
-		}
-
-		void apply() throws Exception {
-			execute(task);
-			apply.performAction();
-		}
-
 		void check() throws Exception {
 			execute(task);
-			check.performAction();
+			check.performActionTest();
 		}
 	}
 

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/PaddedCellTaskTest.java

@@ -76,7 +76,7 @@ private SpotlessCheck createCheckTask(String name, SpotlessTask source) {
 
 		private SpotlessApply createApplyTask(String name, SpotlessTask source) {
 			SpotlessApply task = project.getTasks().create("spotless" + SpotlessPlugin.capitalize(name) + "Apply", SpotlessApply.class);
-			task.source = source;
+			task.linkSource(source);
 			task.setSpotlessOutDirectory(source.getOutputDirectory());
 			return task;
 		}
@@ -107,7 +107,7 @@ void apply() throws Exception {
 
 		void check() throws Exception {
 			execute(task);
-			check.performAction();
+			check.performActionTest();
 		}
 	}
 

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/SpecificFilesTest.java

@@ -16,23 +16,38 @@
 package com.diffplug.gradle.spotless;
 
 import java.io.IOException;
+import java.util.Locale;
 
-import org.gradle.testkit.runner.*;
+import org.gradle.testkit.runner.GradleRunner;
+import org.gradle.testkit.runner.UnexpectedBuildFailure;
 import org.junit.Ignore;
 import org.junit.Test;
 
+import com.diffplug.common.base.StandardSystemProperty;
+
 public class SpecificFilesTest extends GradleIntegrationTest {
+	private static boolean isWindows() {
+		return StandardSystemProperty.OS_NAME.value().toLowerCase(Locale.US).contains("win");
+	}
+
+	private static String regexWinSafe(String input) {
+		return isWindows() ? input.replace("/", "\\\\") : input;
+	}
+
 	private String testFilePath(int number) {
 		return testFilePath(number, true);
 	}
 
 	private String testFilePath(int number, boolean absolute) {
 		String relPath = "src/main/java/test" + number + ".java";
+		String returnValue;
 		if (absolute) {
-			return rootFolder() + "/" + relPath;
+			returnValue = rootFolder().getAbsolutePath().replace('\\', '/') + "/" + relPath;
 		} else {
-			return relPath;
+			returnValue = relPath;
 		}
+		// regex-escape on windows;
+		return regexWinSafe(returnValue);
 	}
 
 	private String fixture() {
@@ -141,7 +156,7 @@ public void matchesNoFiles_formatsNoFilesButDoesNotExitInError() throws IOExcept
 	@Test
 	public void regexp() throws IOException {
 		createBuildScript();
-		integration(".*/src/main/java/test(1|3).java", true, false, true);
+		integration(regexWinSafe(".*/src/main/java/test(1|3).java"), true, false, true);
 	}
 
 	@Test(expected = UnexpectedBuildFailure.class)

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/UpToDateTest.java

@@ -98,4 +98,11 @@ public void testPathologicalCase() throws IOException {
 		applyIsUpToDate(false);
 		applyIsUpToDate(true);
 	}
+
+	@Test
+	public void checkAndApply() throws IOException {
+		writeBuildFile();
+		setFile("README.md").toContent("ABC");
+		gradleRunner().withArguments("spotlessCheck", "spotlessApply").build();
+	}
 }