Build local eclipse plugins using tycho pointing to local p2 repository
eclipse-plugin, tycho
Solution
Sebastian Zarnekow's answer gave me a hint.
Error while building an xtext project with ant: Generation of the Grammar classes fails
As you can infer from the error message, maven fails to create language models from injection. The reason is explained in the link above:
Xtext uses the platform:/resource URI scheme of EMF.
The solution is you need to give EMFGenerator a new declaration of where the model directory should be. In **.mwe2 file, replace the following code
fragment = ecore.EMFGeneratorFragment auto-inject {}
with
fragment = ecore.EMFGeneratorFragment auto-inject {
javaModelDirectory = "/${projectName}/src-gen"
}
should do the trick.
Problem
I am creating some Eclipse plugin and features that require third-party plugins and features. In order to include these dependencies into my project, I created a p2 layout repository. Note: My p2 artifacts are not Maven project... However, I am using Maven style building. Here is the pom.xml for the p2 repository ``` <properties> <tycho-version>0.18.0</tycho-version> </properties> <repositories> <repository> <id>eclipse-platform-m6</id> <layout>p2</layout> <url>http://download.eclipse.org/eclipse/updates/3.8</url> </repository> </repositories> <build> <plugins> <plugin> <groupId>org.eclipse.tycho.extras</groupId> <artifactId>tycho-p2-extras-plugin</artifactId> <version>${tycho-version}</version> <executions> <execution> <phase>prepare-package</phase> <goals> <goal>publish-features-and-bundles</goal> </goals> <configuration> <compress>false</compress> <artifactRepositoryLocation>/mypath/target/repository</artifactRepositoryLocation> <metadataRepositoryLocation>/mypath/target/repository</metadataRepositoryLocation> <sourceLocation>/mypath/src</sourceLocation> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.eclipse.tycho</groupId> <artifactId>tycho-p2-repository-plugin</artifactId> <version>${tycho-version}</version> <configuration> </configuration> <executions> <execution> <phase>package</phase> <goals> <goal>verify-repository</goal> <goal>archive-repository</goal> </goals> <configuration> <compress>false</compress> <includeAllDependencies>true</includeAllDependencies> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.eclipse.tycho</groupId> <artifactId>tycho-p2-publisher-plugin</artifactId> <version>${tycho-version}</version> <configuration> <publishArtifacts>true</publishArtifacts> </configuration> </plugin> <plugin><!-- enable the Tycho build extension --> <groupId>org.eclipse.tycho</groupId> <artifactId>tycho-maven-plugin</artifactId> <version>${tycho-version}</version> <extensions>true</extensions> </plugin> </plugins> </build> ``` The above builds successfully, and creates (and verifies) a p2 repository. I get following structure in my `target/` directory of the project ``` - Project .. .. - target - p2agent - org.eclipse.equinox.p2.core - org.eclipse.equinox.p2.engine - repository - features - plugins artifacts.xml content.xml <projectname>-<version>.zip <!-- This contains same things as repository directory here --> ``` Now, I use Tycho for building my plugins and features and refer the p2 repository I created above. I have following project structure for my plugins and features ``` - bundle.parent - bundle.mainplugin - bundle.mainplugin.test.fragment - bundle.mainplugin.feature ``` Here is my bundle.parent pom.xml ``` <repositories> <repository> <id>eclipse-platform-m6</id> <layout>p2</layout> <url>http://download.eclipse.org/eclipse/updates/3.8</url> </repository> <repository> <id>third-party-eclipse-plugins</id> <layout>p2</layout> <url>file:///.../target/repository</url> </repository> </repositories> <modules> <module>../bundle.mainplugin</module> <module>../bundle.mainplugin.test.fragment</module> <module>../bundle.mainplugin.feature</module> </modules> <build> <plugins> <plugin> <groupId>org.eclipse.tycho</groupId> <artifactId>tycho-maven-plugin</artifactId> <version>${tycho-version}</version> <extensions>true</extensions> </plugin> </plugins> </build> ``` Finally, I run goals `mvn clean install` on the parent pom.xml. Unfortunately, `mvn-compile` throws compilation issues when classes in my plugin extend some of the classes in plugins. (The classes are also required at run-time). Here is the error: ``` org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:0.18.0:compile (default-compile ) on project <Project Name>: Compilation failure at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) Caused by: copied.org.apache.maven.plugin.CompilationFailureException: Compilation failure at copied.org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:442) at org.eclipse.tycho.compiler.AbstractOsgiCompilerMojo.execute(AbstractOsgiCompilerMojo.java:239) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) ... 19 more ``` My Question: From the compiler errors, I believe Tycho is somehow not making these third-party artifacts available to my classes for which there is a compiler error. Is there a way to determine if my plugin classes exist in the Tycho classpath? UPDATE Checked availability of third-party bundles that I want to be available in Tycho reactor from this location ``` java -jar /home/.../eclipse-3.8.2/plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar -debug -consolelog -application org.eclipse.equinox.p2.director -repository file:///home/../target/repository -list ``` All third-party bundles showed up successfully.