Support ktfmt 0.47 or newer (#2045 closes #2043)

Author: nedtwigg

CHANGES.md

@@ -13,7 +13,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ### Added
 * `FileSignature.Promised` and `JarState.Promised` to facilitate round-trip serialization for the Gradle configuration cache. ([#1945](https://github.com/diffplug/spotless/pull/1945)) 
 * Respect `.editorconfig` settings for formatting shell via `shfmt` ([#2031](https://github.com/diffplug/spotless/pull/2031))
-
+### Changes
+* Bump default `ktfmt` version to latest `0.46` -> `0.47`. ([#2045](https://github.com/diffplug/spotless/pull/2045))
 ### Removed
 * **BREAKING** Remove `JarState.getMavenCoordinate(String prefix)`. ([#1945](https://github.com/diffplug/spotless/pull/1945))
 * **BREAKING** Replace `PipeStepPair` with `FenceStep`. ([#1954](https://github.com/diffplug/spotless/pull/1954))

lib/build.gradle

@@ -101,7 +101,7 @@ dependencies {
 	jacksonCompileOnly "com.fasterxml.jackson.core:jackson-databind:$VER_JACKSON"
 	jacksonCompileOnly "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$VER_JACKSON"
 	// ktfmt
-	ktfmtCompileOnly "com.facebook:ktfmt:0.46"
+	ktfmtCompileOnly "com.facebook:ktfmt:0.47"
 	ktfmtCompileOnly("com.google.googlejavaformat:google-java-format") {
 		version {
 			strictly '1.7' // for JDK 8 compatibility

lib/src/ktfmt/java/com/diffplug/spotless/glue/ktfmt/KtfmtFormatterFunc.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2023 DiffPlug
+ * Copyright 2022-2024 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
  */
 package com.diffplug.spotless.glue.ktfmt;
 
+import java.lang.reflect.Method;
+
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
@@ -54,7 +56,7 @@ public String apply(@Nonnull String input) throws Exception {
 		return Formatter.format(createFormattingOptions(), input);
 	}
 
-	private FormattingOptions createFormattingOptions() {
+	private FormattingOptions createFormattingOptions() throws Exception {
 		FormattingOptions formattingOptions;
 		switch (style) {
 		case DEFAULT:
@@ -74,13 +76,26 @@ private FormattingOptions createFormattingOptions() {
 		}
 
 		if (ktfmtFormattingOptions != null) {
-			formattingOptions = formattingOptions.copy(
-					formattingOptions.getStyle(),
-					ktfmtFormattingOptions.getMaxWidth().orElse(formattingOptions.getMaxWidth()),
-					ktfmtFormattingOptions.getBlockIndent().orElse(formattingOptions.getBlockIndent()),
-					ktfmtFormattingOptions.getContinuationIndent().orElse(formattingOptions.getContinuationIndent()),
-					ktfmtFormattingOptions.getRemoveUnusedImport().orElse(formattingOptions.getRemoveUnusedImports()),
-					formattingOptions.getDebuggingPrintOpsAfterFormatting());
+			try {
+				formattingOptions = formattingOptions.copy(
+						formattingOptions.getStyle(),
+						ktfmtFormattingOptions.getMaxWidth().orElse(formattingOptions.getMaxWidth()),
+						ktfmtFormattingOptions.getBlockIndent().orElse(formattingOptions.getBlockIndent()),
+						ktfmtFormattingOptions.getContinuationIndent().orElse(formattingOptions.getContinuationIndent()),
+						ktfmtFormattingOptions.getRemoveUnusedImport().orElse(formattingOptions.getRemoveUnusedImports()),
+						formattingOptions.getDebuggingPrintOpsAfterFormatting(),
+						formattingOptions.getManageTrailingCommas());
+			} catch (NoSuchMethodError e) {
+				//noinspection JavaReflectionMemberAccess, ABI change from ktfmt 0.47
+				Method copyMethod = formattingOptions.getClass().getMethod("copy", FormattingOptions.Style.class, int.class, int.class, int.class, boolean.class, boolean.class);
+				formattingOptions = (FormattingOptions) copyMethod.invoke(formattingOptions,
+						formattingOptions.getStyle(),
+						ktfmtFormattingOptions.getMaxWidth().orElse(formattingOptions.getMaxWidth()),
+						ktfmtFormattingOptions.getBlockIndent().orElse(formattingOptions.getBlockIndent()),
+						ktfmtFormattingOptions.getContinuationIndent().orElse(formattingOptions.getContinuationIndent()),
+						ktfmtFormattingOptions.getRemoveUnusedImport().orElse(formattingOptions.getRemoveUnusedImports()),
+						formattingOptions.getDebuggingPrintOpsAfterFormatting());
+			}
 		}
 
 		return formattingOptions;

lib/src/main/java/com/diffplug/spotless/kotlin/KtfmtStep.java

@@ -37,7 +37,7 @@
  */
 public class KtfmtStep implements RoundedStep {
 	private static final long serialVersionUID = 1L;
-	private static final String DEFAULT_VERSION = "0.46";
+	private static final String DEFAULT_VERSION = "0.47";
 	private static final String NAME = "ktfmt";
 	private static final String MAVEN_COORDINATE = "com.facebook:ktfmt:";
 

plugin-gradle/CHANGES.md

@@ -5,7 +5,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Fixed
 * Ignore system git config when running tests ([#1990](https://github.com/diffplug/spotless/issues/1990))
-
+### Changes
+* Bump default `ktfmt` version to latest `0.46` -> `0.47`. ([#2045](https://github.com/diffplug/spotless/pull/2045))
 ### Added
 * Respect `.editorconfig` settings for formatting shell via `shfmt` ([#2031](https://github.com/diffplug/spotless/pull/2031))
 

plugin-maven/CHANGES.md

@@ -5,7 +5,8 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Fixed
 * Ignore system git config when running tests ([#1990](https://github.com/diffplug/spotless/issues/1990))
-
+### Changes
+* Bump default `ktfmt` version to latest `0.46` -> `0.47`. ([#2045](https://github.com/diffplug/spotless/pull/2045))
 ### Added
 * Respect `.editorconfig` settings for formatting shell via `shfmt` ([#2031](https://github.com/diffplug/spotless/pull/2031))
 

testlib/src/test/java/com/diffplug/spotless/kotlin/KtfmtStepTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2023 DiffPlug
+ * Copyright 2016-2024 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,6 +26,14 @@ void behavior() throws Exception {
 		StepHarness.forStep(step).testResource("kotlin/ktfmt/basic.dirty", "kotlin/ktfmt/basic.clean");
 	}
 
+	@Test
+	void behaviorWithOptions() {
+		KtfmtStep.KtfmtFormattingOptions options = new KtfmtStep.KtfmtFormattingOptions();
+		options.setMaxWidth(100);
+		FormatterStep step = KtfmtStep.create(KtfmtStep.defaultVersion(), TestProvisioner.mavenCentral(), KtfmtStep.Style.GOOGLE, options);
+		StepHarness.forStep(step).testResource("kotlin/ktfmt/basic.dirty", "kotlin/ktfmt/basic.clean");
+	}
+
 	@Test
 	void dropboxStyle_0_18() throws Exception {
 		FormatterStep step = KtfmtStep.create("0.18", TestProvisioner.mavenCentral(), KtfmtStep.Style.DROPBOX, null);