ca.vanzyl.maven.plugins.provisio.GeneratorMojo Maven / Gradle / Ivy

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/*
 * Copyright (C) 2015-2024 Jason van Zyl
 *
 * Licensed 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.
 */
package ca.vanzyl.maven.plugins.provisio;

import ca.vanzyl.provisio.MavenProvisioner;
import ca.vanzyl.provisio.model.ProvisioArtifact;
import ca.vanzyl.provisio.model.ProvisioningRequest;
import ca.vanzyl.provisio.model.Runtime;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

@Mojo(name = "generateDependencies", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
public class GeneratorMojo extends BaseMojo {
    /**
     * Where to put the dependency extended pom.
     */
    @Parameter(
            property = "dependencyExtendedPomLocation",
            defaultValue = "${project.build.directory}/generated/provisio/dependency-extended-pom.xml")
    private File dependencyExtendedPomLocation;

    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        MavenProvisioner provisioner =
                new MavenProvisioner(repositorySystem, repositorySystemSession, project.getRemoteProjectRepositories());

        List artifacts = new ArrayList<>();
        for (Runtime runtime : provisio.findDescriptors(descriptorDirectory, project)) {
            runtime.addArtifactSetReference("runtime.classpath", getRuntimeClasspathAsArtifactSet());

            ProvisioningRequest request = getRequest(runtime);
            try {
                artifacts.addAll(provisioner.getArtifacts(request));
            } catch (Exception e) {
                throw new MojoExecutionException("Error resolving artifacts.", e);
            }
        }
        if (artifacts.isEmpty()) {
            return;
        }
        checkDuplicates(artifacts);
        Model model = project.getOriginalModel().clone();
        List dependencies = getDependencies(artifacts);
        mergeDependencies(model, dependencies);
        writeModel(model);
        project.setPomFile(dependencyExtendedPomLocation);
    }

    private void writeModel(Model model) throws MojoExecutionException {
        getLog().info("Dependency-extended POM written at: " + dependencyExtendedPomLocation.getAbsolutePath());
        try {
            Files.createDirectories(dependencyExtendedPomLocation.toPath().getParent());
        } catch (IOException e) {
            throw new MojoExecutionException(
                    "Error creating parent directories for the POM file: " + e.getMessage(), e);
        }
        try (OutputStream output = Files.newOutputStream(dependencyExtendedPomLocation.toPath())) {
            new MavenXpp3Writer().write(output, model);
        } catch (IOException e) {
            throw new MojoExecutionException("Error writing POM file: " + e.getMessage(), e);
        }
    }
}