Merge branch 'main' into dependabot/gradle/com.diffplug.spotless-6.0.0

CHANGES.md

@@ -11,7 +11,11 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 
 ## [Unreleased]
 
+## [2.20.1] - 2021-12-01
+
 ### Changed
+* Added `named` option to `licenseHeader` to support alternate license header within same format (like java) ([872](https://github.com/diffplug/spotless/issues/872)).
+* Added `onlyIfContentMatches` option to `licenseHeader` to skip license header application  based on source file content pattern ([#650](https://github.com/diffplug/spotless/issues/650)).
 * Bump jgit version ([#992](https://github.com/diffplug/spotless/pull/992)).
   * jgit `5.10.0.202012080955-r` -> `5.13.0.202109080827-r`
 

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing to Spotless
 
-Pull requests are welcome, preferably against `main`.  Feel free to develop spotless any way you like, but the easiest way to look at the code is to clone the repo and run `gradlew ide`, which will download, setup, and start an Eclipse IDE for you.
+Pull requests are welcome, preferably against `main`.  Feel free to develop spotless any way you like.
 
 ## How Spotless works
 
@@ -36,7 +36,6 @@ For the folders below in monospace text, they are published on maven central at
 | `lib-extra` | Contains the optional parts of Spotless which require external dependencies.  `LineEnding.GIT_ATTRIBUTES` won't work unless `lib-extra` is available. |
 | `plugin-gradle` | Integrates spotless and all of its formatters into Gradle. |
 | `plugin-maven` | Integrates spotless and all of its formatters into Maven. |
-| ide | Generates and launches an IDE for developing spotless. |
 | _ext | Folder for generating glue jars (specifically packaging Eclipse jars from p2 for consumption using maven).
 
 ## How to add a new FormatterStep

gradle/java-publish.gradle

@@ -182,3 +182,8 @@ if (!version.endsWith('-SNAPSHOT')) {
 		}
 	}
 }
+
+tasks.withType(AbstractArchiveTask).configureEach {
+	preserveFileTimestamps = false
+	reproducibleFileOrder = true
+}

lib/src/main/java/com/diffplug/spotless/FilterByContentPatternFormatterStep.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2016-2021 DiffPlug
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.diffplug.spotless;
+
+import java.io.File;
+import java.util.Objects;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.annotation.Nullable;
+
+final class FilterByContentPatternFormatterStep implements FormatterStep {
+	private final FormatterStep delegateStep;
+	final Pattern contentPattern;
+
+	FilterByContentPatternFormatterStep(FormatterStep delegateStep, String contentPattern) {
+		this.delegateStep = Objects.requireNonNull(delegateStep);
+		this.contentPattern = Pattern.compile(Objects.requireNonNull(contentPattern));
+	}
+
+	@Override
+	public String getName() {
+		return delegateStep.getName();
+	}
+
+	@Override
+	public @Nullable String format(String raw, File file) throws Exception {
+		Objects.requireNonNull(raw, "raw");
+		Objects.requireNonNull(file, "file");
+
+		Matcher matcher = contentPattern.matcher(raw);
+
+		if (matcher.find()) {
+			return delegateStep.format(raw, file);
+		} else {
+			return raw;
+		}
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (o == null || getClass() != o.getClass()) {
+			return false;
+		}
+		FilterByContentPatternFormatterStep that = (FilterByContentPatternFormatterStep) o;
+		return Objects.equals(delegateStep, that.delegateStep) &&
+				Objects.equals(contentPattern.pattern(), that.contentPattern.pattern());
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(delegateStep, contentPattern.pattern());
+	}
+
+	private static final long serialVersionUID = 1L;
+}

lib/src/main/java/com/diffplug/spotless/FormatterStep.java

@@ -45,6 +45,18 @@ public interface FormatterStep extends Serializable {
 	 */
 	public @Nullable String format(String rawUnix, File file) throws Exception;
 
+	/**
+	 * Returns a new FormatterStep which will only apply its changes
+	 * to files which pass the given filter.
+	 *
+	 * @param contentPattern
+	 *            java regular expression used to filter out files which content doesn't contain pattern
+	 * @return FormatterStep
+	 */
+	public default FormatterStep filterByContentPattern(String contentPattern) {
+		return new FilterByContentPatternFormatterStep(this, contentPattern);
+	}
+
 	/**
 	 * Returns a new FormatterStep which will only apply its changes
 	 * to files which pass the given filter.

lib/src/main/java/com/diffplug/spotless/generic/LicenseHeaderStep.java

@@ -51,54 +51,72 @@ public static LicenseHeaderStep headerDelimiter(String header, String delimiter)
 	}
 
 	public static LicenseHeaderStep headerDelimiter(ThrowingEx.Supplier<String> headerLazy, String delimiter) {
-		return new LicenseHeaderStep(headerLazy, delimiter, DEFAULT_YEAR_DELIMITER, () -> YearMode.PRESERVE);
+		return new LicenseHeaderStep(null, null, headerLazy, delimiter, DEFAULT_YEAR_DELIMITER, () -> YearMode.PRESERVE);
 	}
 
+	final String name;
+	final @Nullable String contentPattern;
 	final ThrowingEx.Supplier<String> headerLazy;
 	final String delimiter;
 	final String yearSeparator;
 	final Supplier<YearMode> yearMode;
 
-	private LicenseHeaderStep(ThrowingEx.Supplier<String> headerLazy, String delimiter, String yearSeparator, Supplier<YearMode> yearMode) {
+	private LicenseHeaderStep(String name, String contentPattern, ThrowingEx.Supplier<String> headerLazy, String delimiter, String yearSeparator, Supplier<YearMode> yearMode) {
+		this.name = sanitizeName(name);
+		this.contentPattern = sanitizeContentPattern(contentPattern);
 		this.headerLazy = Objects.requireNonNull(headerLazy);
 		this.delimiter = Objects.requireNonNull(delimiter);
 		this.yearSeparator = Objects.requireNonNull(yearSeparator);
 		this.yearMode = Objects.requireNonNull(yearMode);
 	}
 
+	public String getName() {
+		return name;
+	}
+
+	public LicenseHeaderStep withName(String name) {
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
+	}
+
+	public LicenseHeaderStep withContentPattern(String contentPattern) {
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
+	}
+
 	public LicenseHeaderStep withHeaderString(String header) {
 		return withHeaderLazy(() -> header);
 	}
 
 	public LicenseHeaderStep withHeaderLazy(ThrowingEx.Supplier<String> headerLazy) {
-		return new LicenseHeaderStep(headerLazy, delimiter, yearSeparator, yearMode);
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
 	}
 
 	public LicenseHeaderStep withDelimiter(String delimiter) {
-		return new LicenseHeaderStep(headerLazy, delimiter, yearSeparator, yearMode);
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
 	}
 
 	public LicenseHeaderStep withYearSeparator(String yearSeparator) {
-		return new LicenseHeaderStep(headerLazy, delimiter, yearSeparator, yearMode);
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
 	}
 
 	public LicenseHeaderStep withYearMode(YearMode yearMode) {
 		return withYearModeLazy(() -> yearMode);
 	}
 
 	public LicenseHeaderStep withYearModeLazy(Supplier<YearMode> yearMode) {
-		return new LicenseHeaderStep(headerLazy, delimiter, yearSeparator, yearMode);
+		return new LicenseHeaderStep(name, contentPattern, headerLazy, delimiter, yearSeparator, yearMode);
 	}
 
 	public FormatterStep build() {
+		FormatterStep formatterStep = null;
+
 		if (yearMode.get() == YearMode.SET_FROM_GIT) {
-			return FormatterStep.createNeverUpToDateLazy(LicenseHeaderStep.name(), () -> {
+			formatterStep = FormatterStep.createNeverUpToDateLazy(name, () -> {
 				boolean updateYear = false; // doesn't matter
 				Runtime runtime = new Runtime(headerLazy.get(), delimiter, yearSeparator, updateYear);
 				return FormatterFunc.needsFile(runtime::setLicenseHeaderYearsFromGitHistory);
 			});
 		} else {
-			return FormatterStep.createLazy(LicenseHeaderStep.name(), () -> {
+			formatterStep = FormatterStep.createLazy(name, () -> {
 				// by default, we should update the year if the user is using ratchetFrom
 				boolean updateYear;
 				switch (yearMode.get()) {
@@ -115,19 +133,50 @@ public FormatterStep build() {
 				return new Runtime(headerLazy.get(), delimiter, yearSeparator, updateYear);
 			}, step -> step::format);
 		}
+
+		if (contentPattern == null) {
+			return formatterStep;
+		}
+
+		return formatterStep.filterByContentPattern(contentPattern);
+	}
+
+	private String sanitizeName(String name) {
+		if (name == null) {
+			return DEFAULT_NAME_PREFIX;
+		}
+
+		name = name.trim();
+
+		if (Objects.equals(DEFAULT_NAME_PREFIX, name) || name.startsWith(DEFAULT_NAME_PREFIX)) {
+			return name;
+		}
+
+		return DEFAULT_NAME_PREFIX + "-" + name;
 	}
 
-	private static final String NAME = "licenseHeader";
+	@Nullable
+	private String sanitizeContentPattern(String contentPattern) {
+		if (contentPattern == null) {
+			return contentPattern;
+		}
+
+		contentPattern = contentPattern.trim();
+
+		if (contentPattern.isEmpty()) {
+			return null;
+		}
+
+		return contentPattern;
+	}
+
+	private static final String DEFAULT_NAME_PREFIX = LicenseHeaderStep.class.getName();
 	private static final String DEFAULT_YEAR_DELIMITER = "-";
 	private static final List<String> YEAR_TOKENS = Arrays.asList("$YEAR", "$today.year");
 
 	private static final SerializableFileFilter UNSUPPORTED_JVM_FILES_FILTER = SerializableFileFilter.skipFilesNamed(
 			"package-info.java", "package-info.groovy", "module-info.java");
 
-	public static String name() {
-		return NAME;
-	}
-
 	public static String defaultYearDelimiter() {
 		return DEFAULT_YEAR_DELIMITER;
 	}

plugin-gradle/CHANGES.md

@@ -4,7 +4,11 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 
 ## [Unreleased]
 
+## [6.0.1] - 2021-12-01
+
 ### Changed
+* Added `named` option to `licenseHeader` to support alternate license header within same format (like java) ([872](https://github.com/diffplug/spotless/issues/872)).
+* Added `onlyIfContentMatches` option to `licenseHeader` to skip license header application  based on source file content pattern ([#650](https://github.com/diffplug/spotless/issues/650)).
 * Bump jgit version ([#992](https://github.com/diffplug/spotless/pull/992)).
   * jgit `5.10.0.202012080955-r` -> `5.13.0.202109080827-r`