Fix eclipse-tycho#189 Support multiple maven-dependencies for one tar…

…get location

Signed-off-by: Christoph Läubrich <laeubi@laeubi-soft.de>

tycho-bundles/org.eclipse.tycho.p2.resolver.shared/src/main/java/org/eclipse/tycho/p2/target/facade/TargetDefinition.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011, 2020 SAP AG and others.
+ * Copyright (c) 2011, 2021 SAP AG 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
@@ -12,6 +12,7 @@
  *    Christoph Läubrich -  [Bug 538144] - support other target locations (Directory, Feature, Installations)
  *                          [Bug 568729] - Support new "Maven" Target location
  *                          [Bug 569481] - Support for maven target location includeSource="true" attribute
+ *                          [Issue 189]  - Support multiple maven-dependencies for one target location
  *******************************************************************************/
 package org.eclipse.tycho.p2.target.facade;
 
@@ -80,18 +81,10 @@ enum MissingManifestStrategy {
 
         MissingManifestStrategy getMissingManifestStrategy();
 
-        String getGroupId();
-
-        String getArtifactId();
-
-        String getVersion();
-
-        String getArtifactType();
-
-        String getClassifier();
-
         Collection<BNDInstructions> getInstructions();
 
+        Collection<MavenDependency> getRoots();
+
         boolean includeSource();
     }
 
@@ -175,4 +168,17 @@ public interface BNDInstructions {
         public Properties getInstructions();
     }
 
+    public interface MavenDependency {
+
+        String getGroupId();
+
+        String getArtifactId();
+
+        String getVersion();
+
+        String getArtifactType();
+
+        String getClassifier();
+    }
+
 }

tycho-core/src/main/java/org/eclipse/tycho/core/ee/TargetDefinitionFile.java

@@ -12,6 +12,7 @@
  *                          - [Bug 533747] - Target file is read and parsed over and over again
  *                          - [Bug 568729] - Support new "Maven" Target location
  *                          - [Bug 569481] - Support for maven target location includeSource="true" attribute
+ *                          - [Issue 189]  - Support multiple maven-dependencies for one target location
  *******************************************************************************/
 package org.eclipse.tycho.core.ee;
 
@@ -164,6 +165,73 @@ public boolean includeSource() {
             return Boolean.parseBoolean(dom.getAttributeValue("includeSource"));
         }
 
+        @Override
+        public String toString() {
+            StringBuilder builder = new StringBuilder("MavenDependencyRoots = ");
+            builder.append(getRoots());
+            builder.append(", IncludeDependencyScope = ");
+            builder.append(getIncludeDependencyScope());
+            builder.append(", MissingManifestStrategy = ");
+            builder.append(getMissingManifestStrategy());
+            builder.append(", IncludeSource = ");
+            builder.append(includeSource());
+            return builder.toString();
+        }
+
+        @Override
+        public Collection<BNDInstructions> getInstructions() {
+            List<BNDInstructions> list = new ArrayList<>();
+            for (Element element : dom.getChildren("instructions")) {
+                String reference = element.getAttributeValue("reference");
+                String text = element.getText();
+                Properties properties = new Properties();
+                try {
+                    properties.load(new StringReader(text));
+                } catch (IOException e) {
+                    throw new TargetDefinitionSyntaxException("parsing instructions into properties failed", e);
+                }
+                list.add(new BNDInstructions() {
+
+                    @Override
+                    public String getReference() {
+                        if (reference == null) {
+                            return "";
+                        }
+                        return reference;
+                    }
+
+                    @Override
+                    public Properties getInstructions() {
+                        return properties;
+                    }
+                });
+            }
+            return list;
+        }
+
+        @Override
+        public Collection<MavenDependency> getRoots() {
+            for (Element dependencies : dom.getChildren("dependencies")) {
+                List<MavenDependency> roots = new ArrayList<>();
+                for (Element dependency : dependencies.getChildren("dependency")) {
+                    roots.add(new MavenDependencyRoot(dependency));
+                }
+                return roots;
+            }
+            //backward compatibility for old format...
+            return Collections.singleton(new MavenDependencyRoot(dom));
+        }
+
+    }
+
+    private static final class MavenDependencyRoot implements MavenDependency {
+
+        private Element dom;
+
+        public MavenDependencyRoot(Element dom) {
+            this.dom = dom;
+        }
+
         @Override
         public String getGroupId() {
             return getTextFromChild("groupId", null);
@@ -211,45 +279,9 @@ public String toString() {
             builder.append(", ArtifactType = ");
             builder.append(getArtifactType());
             builder.append(", IncludeDependencyScope = ");
-            builder.append(getIncludeDependencyScope());
-            builder.append(", MissingManifestStrategy = ");
-            builder.append(getMissingManifestStrategy());
-            builder.append(", IncludeSource = ");
-            builder.append(includeSource());
             return builder.toString();
         }
 
-        @Override
-        public Collection<BNDInstructions> getInstructions() {
-            List<BNDInstructions> list = new ArrayList<>();
-            for (Element element : dom.getChildren("instructions")) {
-                String reference = element.getAttributeValue("reference");
-                String text = element.getText();
-                Properties properties = new Properties();
-                try {
-                    properties.load(new StringReader(text));
-                } catch (IOException e) {
-                    throw new TargetDefinitionSyntaxException("parsing instructions into properties failed", e);
-                }
-                list.add(new BNDInstructions() {
-
-                    @Override
-                    public String getReference() {
-                        if (reference == null) {
-                            return "";
-                        }
-                        return reference;
-                    }
-
-                    @Override
-                    public Properties getInstructions() {
-                        return properties;
-                    }
-                });
-            }
-            return list;
-        }
-
     }
 
     public class IULocation implements TargetDefinition.InstallableUnitLocation {

tycho-its/projects/target.mavenMulti/pom.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- - Copyright (c) 2015, 2020 SAP SE and others. - All rights reserved. This 
+	program and the accompanying materials - are made available under the terms 
+	of the Eclipse Public License v1.0 - which accompanies this distribution, 
+	and is available at - http://www.eclipse.org/legal/epl-v10.html - - Contributors: 
+	- SAP SE - initial API and implementation -->
+
+<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>org.eclipse.tycho.itests</groupId>
+	<artifactId>issue-189-parent</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>pom</packaging>
+
+	<properties>
+		<tycho-version>2.5.0-SNAPSHOT</tycho-version>
+	</properties>
+
+	<modules>
+		<module>test.bundle</module>
+		<module>test.feature</module>
+	</modules>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.eclipse.tycho</groupId>
+				<artifactId>tycho-maven-plugin</artifactId>
+				<version>${tycho-version}</version>
+				<extensions>true</extensions>
+			</plugin>
+			<plugin>
+				<groupId>org.eclipse.tycho</groupId>
+				<artifactId>target-platform-configuration</artifactId>
+				<version>${tycho-version}</version>
+				<configuration>
+					<target>
+						<file>../test.target</file>
+					</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+
+
+</project>

tycho-its/projects/target.mavenMulti/test.bundle/META-INF/MANIFEST.MF

@@ -0,0 +1,9 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Bundle
+Bundle-SymbolicName: test.bundle
+Bundle-Version: 0.0.1.qualifier
+Automatic-Module-Name: test.bundle
+Bundle-RequiredExecutionEnvironment: JavaSE-11
+Require-Bundle: org.eclipse.jetty.http;bundle-version="11.0.6",
+ slf4j.api;bundle-version="2.0.0"

tycho-its/projects/target.mavenMulti/test.bundle/build.properties

@@ -0,0 +1,4 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .

tycho-its/projects/target.mavenMulti/test.bundle/pom.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (c) 2012 SAP AG All rights reserved. This program and the 
+	accompanying materials are made available under the terms of the Eclipse 
+	Public License v1.0 which accompanies this distribution, and is available 
+	at http://www.eclipse.org/legal/epl-v10.html -->
+<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>
+
+	<artifactId>test.bundle</artifactId>
+	<packaging>eclipse-plugin</packaging>
+
+	<parent>
+		<groupId>org.eclipse.tycho.itests</groupId>
+		<artifactId>issue-189-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+</project>

tycho-its/projects/target.mavenMulti/test.bundle/src/test/bundle/TestClass.java

@@ -0,0 +1,21 @@
+/*******************************************************************************
+ * Copyright (c) 2021 Christoph Läubrich 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
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *    Christoph Läubrich - initial API and implementation
+ *******************************************************************************/
+package test.bundle;
+
+import org.eclipse.jetty.http.HttpField;
+
+public class TestClass {
+	public static void main(String[] args) {
+		HttpField field = new HttpField("test", "me");
+	}
+}

tycho-its/projects/target.mavenMulti/test.feature/build.properties

@@ -0,0 +1 @@
+bin.includes = feature.xml

tycho-its/projects/target.mavenMulti/test.feature/feature.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<feature
+      id="test.feature"
+      label="Feature"
+      version="0.0.1.qualifier">
+
+   <description url="http://www.example.com/description">
+      [Enter Feature Description here.]
+   </description>
+
+   <copyright url="http://www.example.com/copyright">
+      [Enter Copyright Description here.]
+   </copyright>
+
+   <license url="http://www.example.com/license">
+      [Enter License Description here.]
+   </license>
+
+   <plugin
+         id="test.bundle"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
+   <plugin
+         id="org.eclipse.jetty.http"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
+   <plugin
+         id="slf4j.api"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
+</feature>

tycho-its/projects/target.mavenMulti/test.feature/pom.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (c) 2012 SAP AG All rights reserved. This program and the 
+	accompanying materials are made available under the terms of the Eclipse 
+	Public License v1.0 which accompanies this distribution, and is available 
+	at http://www.eclipse.org/legal/epl-v10.html -->
+<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>
+
+	<artifactId>test.feature</artifactId>
+	<packaging>eclipse-feature</packaging>
+
+	<parent>
+		<groupId>org.eclipse.tycho.itests</groupId>
+		<artifactId>issue-189-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+</project>

tycho-its/projects/target.mavenMulti/test.target

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?pde version="3.8"?>
+<target name="test">
+	<locations>
+	<location includeDependencyScope="compile" includeSource="true" missingManifest="generate" type="Maven">
+		<dependencies>
+			<dependency>
+				<groupId>org.eclipse.jetty</groupId>
+				<artifactId>jetty-server</artifactId>
+				<version>11.0.6</version>
+				<type>jar</type>
+			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty</groupId>
+				<artifactId>jetty-servlet</artifactId>
+				<version>11.0.6</version>
+				<type>jar</type>
+			</dependency>
+		</dependencies>
+	</location>
+</locations>
+</target>

tycho-its/src/test/java/org/eclipse/tycho/test/target/TargetPlatformLocationsTest.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2020 Christoph Läubrich and others.
+ * Copyright (c) 2020, 2021 Christoph Läubrich 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
@@ -25,6 +25,13 @@ public void testMavenLocation() throws Exception {
         verifier.verifyErrorFreeLog();
     }
 
+    @Test
+    public void testMavenLocationMulti() throws Exception {
+        Verifier verifier = getVerifier("target.mavenMulti", false, true);
+        verifier.executeGoal("verify");
+        verifier.verifyErrorFreeLog();
+    }
+
     public void testDirectoryLocation() throws Exception {
         Verifier verifier = getVerifier("target.directory", false, true);
         verifier.executeGoal("verify");