package org.apache.maven.its.deptree;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import org.apache.maven.AbstractMavenLifecycleParticipant;
import org.apache.maven.MavenExecutionException;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.project.MavenProject;
import org.apache.maven.shared.dependency.graph.DependencyGraphBuilder;
import org.apache.maven.shared.dependency.graph.DependencyGraphBuilderException;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.util.FileUtils;
import java.io.File;
import java.io.IOException;
import java.util.List;
/**
* Resolves all the dependencies in the project immediately after the Project has been read.
*
* It needs to resolve dependencies from the reactor because in a multi-module build
* sibling modules may never have been built yet, so will not exist in any repo.
*
* It is crucial that reactor dependencies can be found at this point in the build because
* this is the only time at which we can modify the classpath. And for modules that produce
* archives (eg Android AAR) which contain the actual Java Jar dependency, we need to know
* that they exist so that we can add a placeholder for them onto the classpath,
* which we can replace with the real classes once they are built.
*/
@Component( role = AbstractMavenLifecycleParticipant.class, hint = "default" )
public final class ResolveDependenciesLifecycleParticipant extends AbstractMavenLifecycleParticipant
{
@Requirement( hint = "default" )
private DependencyGraphBuilder dependencyGraphBuilder;
@Requirement
private Logger log;
@Override
public void afterProjectsRead( MavenSession session ) throws MavenExecutionException
{
log.info( "" );
log.info( "ResolveDependenciesLifecycleParticipant#afterProjectsRead" );
final List<MavenProject> projects = session.getProjects();
File basedir = new File( session.getExecutionRootDirectory() );
for ( MavenProject project : projects )
{
log.info( "building dependency graph for project " + project.getArtifact() );
File resolved = new File( basedir, "resolved-" + project.getArtifactId() + ".txt" );
try
{
log.info( "building with reactor projects" );
// No need to filter our search. We want to resolve all artifacts.
dependencyGraphBuilder.buildDependencyGraph( project, null, projects );
}
catch ( DependencyGraphBuilderException e )
{
throw new MavenExecutionException( "Could not resolve dependencies for project: " + project, e );
}
try
{
log.info( "building without reactor projects" );
// resolution without reactor projects, to check that it is not possible at this point
dependencyGraphBuilder.buildDependencyGraph( project, null );
}
catch ( DependencyGraphBuilderException e )
{
log.info( "expected resolution failure: " + e.getMessage() );
try
{
FileUtils.fileWrite( resolved.getAbsolutePath(), e.getMessage() );
}
catch ( IOException ioe )
{
throw new MavenExecutionException( "Could not write " + resolved, ioe );
}
}
}
log.info( "" );
}
}