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[tycho-user] Refer to variables in a features build.properties 
Hi,
I'm currently working on switching an ant/pde buildsystem to Maven/Tycho and hitting a road bump that I can't seem to find answers for.
We're including a JRE in our product by having a feature using the rootfiles support. In principle this works fine with Maven/Tycho.
However the machines that are going to build the product have the root folder in different places, so the build.properties file uses a variable to make part of the absolute path come in from the outside. With ant I could just set an ant property and it worked fine.
With Maven/Tycho, as soon as I add the variable reference to the build.properties file the root folder to be included is not found anymore. 

So my build.properties looks like this:

root.linux.gtk.x86=${jreBaseDir}/linux32
root.linux.gtk.x86_64=${jreBaseDir}/linux64
[...]
root.win32.win32.x86=${jreBaseDir}/win32

and I'm running maven using:

mvn -DjreBaseDir=/path/to/where/the/jres/are clean verify
This results in below errors. Anybody a hint (I'm not trying to set any permissions/symlinks via the build.properties file at the moment)?
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-p2-plugin:0.20.0:p2-metadata-default (default-p2-metadata-default) on project com.froglogic.squish.ide.product.feature: Execution default-p2-metadata-default of goal org.eclipse.tycho:tycho-p2-plugin:0.20.0:p2-metadata-default failed: Cannot set permissions or symbolic links for win32.win32.x86 if there are no root files for that configuration -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-p2-plugin:0.20.0:p2-metadata-default (default-p2-metadata-default) on project com.froglogic.squish.ide.product.feature: Execution default-p2-metadata-default of goal org.eclipse.tycho:tycho-p2-plugin:0.20.0:p2-metadata-default failed: Cannot set permissions or symbolic links for win32.win32.x86 if there are no root files for that configuration at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225) 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:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:622)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-p2-metadata-default of goal org.eclipse.tycho:tycho-p2-plugin:0.20.0:p2-metadata-default failed: Cannot set permissions or symbolic links for win32.win32.x86 if there are no root files for that configuration at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) 
        ... 19 more
Caused by: java.lang.RuntimeException: Cannot set permissions or symbolic links for win32.win32.x86 if there are no root files for that configuration at org.eclipse.tycho.p2.impl.publisher.AbstractMetadataGenerator.publish(AbstractMetadataGenerator.java:121) at org.eclipse.tycho.p2.impl.publisher.AbstractMetadataGenerator.generateMetadata(AbstractMetadataGenerator.java:58) at org.eclipse.tycho.p2.impl.publisher.P2GeneratorImpl.generateMetadata(P2GeneratorImpl.java:95) at org.eclipse.tycho.plugins.p2.P2MetadataMojo.attachP2Metadata(P2MetadataMojo.java:145) at org.eclipse.tycho.plugins.p2.P2MetadataMojo.execute(P2MetadataMojo.java:106) at org.eclipse.tycho.plugins.p2.P2MetadataDefaultMojo.execute(P2MetadataDefaultMojo.java:34) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) 
        ... 20 more
Caused by: java.lang.IllegalArgumentException: Cannot set permissions or symbolic links for win32.win32.x86 if there are no root files for that configuration at org.eclipse.tycho.p2.impl.publisher.rootfiles.FeatureRootAdvice.ensureRootFilesConfigured(FeatureRootAdvice.java:198) at org.eclipse.tycho.p2.impl.publisher.rootfiles.FeatureRootAdvice.getDescriptor(FeatureRootAdvice.java:147) at org.eclipse.equinox.p2.publisher.eclipse.FeaturesAction.generateRootFileIUs(FeaturesAction.java:453) at org.eclipse.equinox.p2.publisher.eclipse.FeaturesAction.generateFeatureIUs(FeaturesAction.java:423) at org.eclipse.equinox.p2.publisher.eclipse.FeaturesAction.perform(FeaturesAction.java:605) at org.eclipse.equinox.p2.publisher.Publisher$ArtifactProcess.run(Publisher.java:207) at org.eclipse.equinox.p2.repository.artifact.spi.AbstractArtifactRepository.executeBatch(AbstractArtifactRepository.java:187) at org.eclipse.equinox.p2.publisher.Publisher.publish(Publisher.java:231) at org.eclipse.tycho.p2.impl.publisher.AbstractMetadataGenerator.publish(AbstractMetadataGenerator.java:118) 
        ... 26 more

Andreas

--
Andreas Pakulat squish@xxxxxxxxxxxxx
froglogic GmbH - Automated UI and Web Testing

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