Add a flag to the tycho-packaging-plugin to skip its execution

This allows to selective execute packaging based on property values.

(cherry picked from commit 619a065)

tycho-packaging-plugin/src/main/java/org/eclipse/tycho/packaging/AbstractTychoPackagingMojo.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2022 Sonatype Inc. and others.
+ * Copyright (c) 2008, 2024 Sonatype Inc. and others.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
@@ -93,6 +93,10 @@ public abstract class AbstractTychoPackagingMojo extends AbstractMojo {
     @Parameter
     protected DefaultFileSet[] additionalFileSets;
 
+    /** If {@code true}, skips the packaging entirely. */
+    @Parameter(defaultValue = "false")
+    protected boolean skip;
+
     @Component
     protected PlexusContainer plexus;
 

tycho-packaging-plugin/src/main/java/org/eclipse/tycho/packaging/PackageFeatureMojo.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2022 Sonatype Inc. and others.
+ * Copyright (c) 2008, 2024 Sonatype Inc. and others.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
@@ -129,6 +129,10 @@ public class PackageFeatureMojo extends AbstractTychoPackagingMojo {
 
     @Override
     public void execute() throws MojoExecutionException, MojoFailureException {
+        if (skip) {
+            getLog().info("Skip packaging");
+            return;
+        }
         synchronized (LOCK) {
             outputDirectory.mkdirs();
 

tycho-packaging-plugin/src/main/java/org/eclipse/tycho/packaging/PackageIUMojo.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2015 Rapicorp, Inc. and others.
+ * Copyright (c) 2015, 2024 Rapicorp, Inc. and others.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
@@ -61,6 +61,10 @@ public class PackageIUMojo extends AbstractTychoPackagingMojo {
 
     @Override
     public void execute() throws MojoExecutionException, MojoFailureException {
+        if (skip) {
+            getLog().info("Skip packaging");
+            return;
+        }
         synchronized (LOCK) {
             outputDirectory.mkdirs();
 

tycho-packaging-plugin/src/main/java/org/eclipse/tycho/packaging/PackagePluginMojo.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2022 Sonatype Inc. and others.
+ * Copyright (c) 2008, 2024 Sonatype Inc. and others.
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
@@ -172,7 +172,10 @@ public class PackagePluginMojo extends AbstractTychoPackagingMojo {
 
 	@Override
 	public void execute() throws MojoExecutionException {
-
+		if (skip) {
+			getLog().info("skip packaging");
+			return;
+		}
 		Optional<EclipsePluginProject> pde = projectManager.getTychoProject(project)
 				.filter(BundleProject.class::isInstance)
 				.map(BundleProject.class::cast)