Add support to filter files to perform cleanup

Author: laeubi

tycho-cleancode-plugin/src/main/java/org/eclipse/tycho/cleancode/CleanUp.java

@@ -16,11 +16,13 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ProjectScope;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.jdt.core.ICompilationUnit;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
@@ -43,11 +45,14 @@ public class CleanUp extends AbstractEclipseBuild<CleanupResult> {
 
 	private Map<String, String> customProfile;
 	private boolean applyCleanupsIndividually;
+	private List<Pattern> ignores;
 
-	CleanUp(Path projectDir, boolean debug, Map<String, String> customProfile, boolean applyCleanupsIndividually) {
+	CleanUp(Path projectDir, boolean debug, Map<String, String> customProfile, boolean applyCleanupsIndividually,
+			List<Pattern> ignores) {
 		super(projectDir, debug);
 		this.customProfile = customProfile;
 		this.applyCleanupsIndividually = applyCleanupsIndividually;
+		this.ignores = ignores;
 	}
 
 	@Override
@@ -101,6 +106,9 @@ private List<ICompilationUnit> getCompilationUnits(IProject project) throws Java
 						IPackageFragment pf = (IPackageFragment) javaElement;
 						ICompilationUnit[] compilationUnits = pf.getCompilationUnits();
 						for (ICompilationUnit compilationUnit : compilationUnits) {
+							if (isIgnored(compilationUnit)) {
+								continue;
+							}
 							units.add(compilationUnit);
 						}
 					}
@@ -110,6 +118,22 @@ private List<ICompilationUnit> getCompilationUnits(IProject project) throws Java
 		return units;
 	}
 
+	private boolean isIgnored(ICompilationUnit compilationUnit) {
+		if (ignores == null || ignores.isEmpty()) {
+			return false;
+		}
+		IProject project = compilationUnit.getJavaProject().getProject();
+		IPath location = project.getFullPath();
+		IPath path = compilationUnit.getPath().makeRelativeTo(location);
+		String pathString = path.toString();
+		for (Pattern ignored : ignores) {
+			if (ignored.matcher(pathString).matches()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	private ICleanUp[] getCleanups(CleanupResult result, CleanUpOptions options) {
 		ICleanUp[] cleanUps = JavaPlugin.getDefault().getCleanUpRegistry().createCleanUps();
 		for (ICleanUp cleanUp : cleanUps) {

tycho-cleancode-plugin/src/main/java/org/eclipse/tycho/cleancode/CleanUpMojo.java

@@ -13,7 +13,9 @@
 package org.eclipse.tycho.cleancode;
 
 import java.io.File;
+import java.util.List;
 import java.util.Map;
+import java.util.regex.Pattern;
 
 import org.apache.maven.plugin.MojoFailureException;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
@@ -43,6 +45,12 @@ public class CleanUpMojo extends AbstractEclipseBuildMojo<CleanupResult> {
 	@Parameter
 	private boolean applyCleanupsIndividually;
 
+	/**
+	 * Specifies patterns of files that should be excluded
+	 */
+	@Parameter
+	private List<String> ignores;
+
 	@Override
 	protected String[] getRequireBundles() {
 		return new String[] { "org.eclipse.jdt.ui" };
@@ -55,7 +63,15 @@ protected String getName() {
 
 	@Override
 	protected CleanUp createExecutable() {
-		return new CleanUp(project.getBasedir().toPath(), debug, cleanUpProfile, applyCleanupsIndividually);
+		return new CleanUp(project.getBasedir().toPath(), debug, cleanUpProfile, applyCleanupsIndividually,
+				getIgnores());
+	}
+
+	private List<Pattern> getIgnores() {
+		if (ignores == null || ignores.isEmpty()) {
+			return null;
+		}
+		return ignores.stream().map(Pattern::compile).toList();
 	}
 
 	@Override