Add test case for PublishFeaturesAndBundlesMojo marking bundle unpacked

The PublishFeaturesAndBundlesMojo produces a p2 repository in which
plugins are marked as "zipped" and will thus be unpacked upon
installation when a feature including them does not include the plugin
with "unpack=false". The added test demonstrates this behavior and
ensures that only the feature will properly be marked as "zipped" but
not the included plugin.

tycho-extras/tycho-p2-extras-plugin/src/test/java/org/eclipse/tycho/plugins/p2/extras/PublishFeaturesAndBundlesMojoTest.java

@@ -22,6 +22,7 @@
 import java.nio.file.StandardCopyOption;
 import java.util.List;
 import java.util.Properties;
+import java.util.stream.Stream;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.execution.MavenSession;
@@ -39,6 +40,35 @@
 
 public class PublishFeaturesAndBundlesMojoTest extends AbstractTychoMojoTestCase {
 
+    public void testPublisherNoUnpack() throws Exception {
+        File basedir = getBasedir("publisher/testProjectNoUnpack");
+        List<MavenProject> projects = getSortedProjects(basedir);
+        MavenProject project = projects.get(0);
+
+        initLegacySupport(projects, project);
+
+        // simulate that content to be published has already been extracted to the target folder
+        Path sourceRepositoryDir = Path.of(project.getFile().getParent());
+        File publishedContentDir = new File(project.getFile().getParent(), "target/repository").getAbsoluteFile();
+
+        // call publisher mojo
+        Mojo publishMojo = lookupMojo("publish-features-and-bundles", project.getFile());
+        setVariableValueToObject(publishMojo, "sourceLocation", sourceRepositoryDir.toString());
+        setVariableValueToObject(publishMojo, "artifactRepositoryLocation", publishedContentDir.toString());
+        setVariableValueToObject(publishMojo, "metadataRepositoryLocation", publishedContentDir.toString());
+        setVariableValueToObject(publishMojo, "publishArtifacts", Boolean.TRUE);
+
+        publishMojo.execute();
+
+        assertPublishedIU(publishedContentDir, "test_plugin");
+        assertPublishedArtifact(publishedContentDir, "test_plugin", "1.0.0");
+        try (Stream<String> stream = Files.lines(publishedContentDir.toPath().resolve("content.xml"))) {
+            long numberOfZippedArtifacts = stream.filter(lines -> lines.contains("zipped")).count();
+            assertEquals("only the feature should be marked as zipped", 1, numberOfZippedArtifacts);
+        } catch (IOException e) {
+        }
+    }
+
     public void testPublisher() throws Exception {
         File basedir = getBasedir("publisher/testProject");
         List<MavenProject> projects = getSortedProjects(basedir);

tycho-extras/tycho-p2-extras-plugin/src/test/resources/publisher/testProjectNoUnpack/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>tycho-extras-tests</groupId>
+	<artifactId>publishedRepositoryUNPACK</artifactId>
+	<version>1.0.0-SNAPSHOT</version>
+	<packaging>pom</packaging>
+
+	<pluginRepositories>
+		<pluginRepository>
+			<id>tycho-snapshots</id>
+			<url>https://repo.eclipse.org/content/repositories/tycho-snapshots/</url>
+			<releases>
+				<enabled>true</enabled>
+			</releases>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+	</pluginRepositories>
+
+	<build>
+		<plugins>
+			<!-- Configuration for the PublishFeaturesAndBundlesMojoTest -->
+			<plugin>
+				<groupId>org.eclipse.tycho.extras</groupId>
+				<artifactId>tycho-p2-extras-plugin</artifactId>
+				<version>${tycho-version}</version>
+				<executions>
+					<execution>
+						<phase>prepare-package</phase>
+						<goals>
+							<goal>publish-features-and-bundles</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<compress>false</compress>
+					<!-- additional arguments example
+							<additionalArgs>-configs win32.win32.x86</additionalArgs>
+						-->
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>